{"id":8737,"date":"2009-03-24T04:24:08","date_gmt":"2009-03-23T21:24:08","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2009\/03\/phat-trien-ky-thuat-tia-thua-rung-duoc-rhizophora-apiculata-co-su-tham-gia-tai-xa-tam-giang-dong-huyen-nam-can-tinh-ca-mau\/"},"modified":"2019-09-24T11:03:35","modified_gmt":"2019-09-24T04:03:35","slug":"phat-trien-ky-thuat-tia-thua-rung-duoc-rhizophora-apiculata-co-su-tham-gia-tai-xa-tam-giang-dong-huyen-nam-can-tinh-ca-mau","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/phat-trien-ky-thuat-tia-thua-rung-duoc-rhizophora-apiculata-co-su-tham-gia-tai-xa-tam-giang-dong-huyen-nam-can-tinh-ca-mau\/","title":{"rendered":"Ph\u00e1t tri\u1ec3n k\u1ef9 thu\u1eadt t\u1ec9a th\u01b0a r\u1eebng \u0111\u01b0\u1edbc (Rhizophora apiculata) c\u00f3 s\u1ef1 tham gia, t\u1ea1i x\u00e3 Tam Giang \u0110\u00f4ng, huy\u1ec7n N\u0103m C\u0103n, t\u1ec9nh C\u00e0 Mau"},"content":{"rendered":"<p><strong>Ph\u00e1t tri\u1ec3n k\u1ef9 thu\u1eadt t\u1ec9a th\u01b0a r\u1eebng \u0111\u01b0\u1edbc (<em>Rhizophora apiculata<\/em>) c\u00f3 s\u1ef1 tham gia, t\u1ea1i x\u00e3 Tam Giang \u0110\u00f4ng, huy\u1ec7n N\u0103m C\u0103n, t\u1ec9nh C\u00e0 Mau<\/strong><\/p>\n<p><strong><em>Ho\u00e0ng V\u0103n Th\u01a1i<\/em><\/strong><\/p>\n<p><em>Trung t\u00e2m Nghi\u00ean c\u1ee9u &amp; \u1ee9ng d\u1ee5ng K\u1ef9 thu\u1eadt r\u1eebng ng\u1eadp Minh H\u1ea3I<\/em><\/p>\n<p><em>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n<p>Vi\u1ec7c s\u1ea3n xu\u1ea5t k\u1ebft h\u1ee3p gi\u1eefa r\u1eebng ng\u1eadp m\u1eb7n v\u00e0 nu\u00f4i t\u00f4m trong c\u00e1c n\u00f4ng tr\u1ea1i, \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00f3 c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt h\u1ee3p l\u00fd. R\u1eebng \u0110\u01b0\u1edbc sau khi kh\u00e9p t\u00e1n th\u01b0\u1eddng c\u00f3 t\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng v\u1ec1 sinh kh\u1ed1i r\u1ea5t cao, d\u1eabn \u0111\u1ebfn l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng r\u01a1i xu\u1ed1ng c\u00e1c k\u00eanh nu\u00f4i t\u00f4m l\u00e0 r\u1ea5t l\u1edbn. \u0110i\u1ec1u n\u00e0y g\u00e2y ra s\u1ef1 \u00f4 nhi\u1ec5m ngu\u1ed3n n\u01b0\u1edbc \u1edf c\u00e1c vu\u00f4ng t\u00f4m v\u00e0 g\u00e2y nhi\u1ec1u kh\u00f3 kh\u0103n cho vi\u1ec7c thu ho\u1ea1ch t\u00f4m nu\u00f4i trong \u0111\u1ea7m. M\u1eb7t kh\u00e1c, c\u00e2y \u0110\u01b0\u1edbc c\u00f3 \u0111\u1eb7c t\u00ednh t\u1ea1o ra nhi\u1ec1u th\u00e2n l\u00e0m cho m\u1eadt \u0111\u1ed9 r\u1eebng t\u0103ng l\u00ean d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng c\u1ea1nh tranh dinh d\u01b0\u1ee1ng v\u00e0 \u00e1nh s\u00e1ng r\u1ea5t quy\u1ebft li\u1ec7t, m\u1ed9t s\u1ed1 c\u00e2y s\u1ebd b\u1ecb ch\u1ebft do qu\u00e1 tr\u00ecnh c\u1ea1nh tranh. Nh\u1eefng ng\u01b0\u1eddi n\u00f4ng d\u00e2n c\u1ea3m th\u1ea5y ph\u1ea3i c\u00f3 nh\u1eefng gi\u1ea3i ph\u00e1p \u0111\u1ec3 h\u1ea1n ch\u1ebf s\u1ef1 \u00f4 nhi\u1ec5m ngu\u1ed3n n\u01b0\u1edbc trong \u0111\u1ea7m nu\u00f4i t\u00f4m, h\u1ea1n ch\u1ebf s\u1ef1 c\u1ea1nh tranh c\u1ee7a c\u00e2y r\u1eebng v\u00e0 c\u1ea7n c\u00f3 s\u1ea3n ph\u1ea9m g\u1ed7 c\u1ee7i \u0111\u1ec3 l\u00e0m ch\u1ea5t \u0111\u1ed1t v\u00e0 g\u1ed7 ph\u1ee5c v\u1ee5 cho nhu c\u1ea7u sinh ho\u1ea1t v\u00e0 \u0111\u1eddi s\u1ed1ng c\u1ee7a b\u1ea3n th\u00e2n h\u1ecd c\u0169ng nh\u01b0 c\u1ed9ng \u0111\u1ed3ng d\u00e2n \u0111\u1ecba ph\u01b0\u01a1ng.<\/p>\n<p>Ch\u1ec9 t\u00ednh ri\u00eang \u1edf C\u00e0 Mau,trong t\u1ed5ng s\u1ed1 137.730ha \u0111\u1ea5t r\u1eebng ng\u1eadp m\u1eb7n th\u00ec c\u00f3 t\u1edbi 66.873 ha \u0111\u1ea5t r\u1eebng \u1edf c\u00e1c n\u00f4ng tr\u1ea1i c\u1ee7a ng\u01b0\u1eddi d\u00e2n, chi\u1ebfm t\u1ec9 l\u1ec7 48,6% di\u1ec7n t\u00edch \u0111\u1ea5t r\u1eebng ng\u1eadp m\u1eb7n c\u1ee7a to\u00e0n t\u1ec9nh. T\u1ed5ng s\u1ed1 n\u00f4ng h\u1ed9 s\u1ea3n xu\u1ea5t l\u00e2m ng\u01b0 k\u1ebft h\u1ee3p l\u00e0 14.251 h\u1ed9, v\u1edbi di\u1ec7n t\u00edch trung b\u00ecnh 4,7ha\/h\u1ed9 (Nguy\u1ec5n V\u0103n B\u00e9, 2000). Nh\u1eefng trang tr\u1ea1i n\u00e0y v\u1eeba kinh doanh r\u1eebng (60% \u2013 70%) v\u1eeba k\u1ebft h\u1ee3p nu\u00f4i t\u00f4m d\u01b0\u1edbi t\u00e1n r\u1eebng (30% -40%). R\u1ea5t c\u1ea7n thi\u1ebft c\u00f3 nh\u1eefng bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt t\u1ec9a th\u01b0a r\u1eebng ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c n\u00f4ng tr\u1ea1i nh\u1ecf m\u00e0 ng\u01b0\u1eddi d\u00e2n \u0111ang mong \u0111\u1ee3i. Vi\u1ec7c x\u00e1c \u0111\u1ecbnh nh\u1eefng bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt t\u1ec9a th\u01b0a r\u1eebng th\u00edch h\u1ee3p tr\u00ean c\u00e1c n\u00f4ng tr\u1ea1i c\u1ee7a ng\u01b0\u1eddi d\u00e2n, \u0111\u00f2i h\u1ecfi ph\u1ea3i \u0111\u00e1p \u1ee9ng 3 y\u00eau c\u1ea7u c\u01a1 b\u1ea3n:<\/p>\n<p><em>1. \u0110\u1ea9y nhanh t\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng c\u1ee7a r\u1eebng, <\/em><\/p>\n<p><em>2. C\u1ea3i thi\u1ec7n thu nh\u1eadp t\u1eeb nu\u00f4i t\u00f4m k\u1ebft h\u1ee3p d\u01b0\u1edbi t\u00e1n r\u1eebng.<\/em><\/p>\n<p><em>3. C\u00f3 thu nh\u1eadp t\u1eeb b\u00e1n s\u1ea3n ph\u1ea9m t\u1ec9a th\u01b0a<\/em><\/p>\n<p>Tr\u01b0\u1edbc \u0111\u00e2y, \u0111\u00e3 c\u00f3 c\u00e1c c\u00f4ng tr\u00ecnh nguy\u00ean c\u1ee9u v\u1ec1 RNM c\u1ee7a c\u00e1c t\u00e1c gi\u1ea3 nh\u01b0: Phan Nguy\u00ean H\u1ed3ng (1997),Nguy\u1ec5n Ng\u1ecdc B\u00ecnh (1999), Nguy\u1ec5n Ho\u00e0ng Tr\u00ed (1998) \u2026\u0111\u00e3 m\u00f4 t\u1ea3 v\u1ec1 \u0111\u1eb7c \u0111i\u1ec3m h\u00ecnh th\u00e1i, sinh th\u00e1i c\u1ee7a m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y RNM n\u00f3i chung, c\u00e1ch g\u00e2y tr\u1ed3ng v\u00e0 ch\u0103m s\u00f3c ch\u00fang. Tuy nhi\u00ean, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u c\u00f3 s\u1ef1 tham gia ch\u1ec9 m\u1edbi \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n r\u1ea5t \u00edt, ch\u01b0a \u0111\u1ec1 c\u1eadp \u0111\u1ebfn s\u1ef1 tham gia c\u1ee7a ng\u01b0\u1eddi d\u00e2n trong vi\u1ec7c c\u00f9ng tham gia x\u00e2y d\u1ef1ng, th\u1ef1c hi\u1ec7n, th\u1ea3o lu\u1eadn<\/p>\n<p>\u0110\u1ecba b\u00e0n nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh t\u1ea1i \u1ea5p Mai Vinh, x\u00e3 Tam Giang \u0110\u00f4ng<em>,<\/em> huy\u1ec7n N\u0103m C\u0103n, t\u1ec9nh C\u00e0 Mau. S\u1ed1 h\u1ed9 d\u00e2n s\u1ed1ng tr\u00ean \u0111\u1ecba b\u00e0n khu v\u1ef1c nghi\u00ean c\u1ee9u l\u00e0 36 h\u1ed9 v\u1edbi s\u1ed1 nh\u00e2n kh\u1ea9u 180<\/p>\n<p>Lo\u00e0i c\u00e2y tr\u1ed3ng ch\u1ee7 y\u1ebfu \u1edf khu v\u1ef1c nghi\u00ean c\u1ee9u l\u00e0 lo\u00e0i \u0111\u01b0\u1edbc (<em>Rhizophora apiculata) c\u00f3<\/em> ngu\u1ed3n g\u1ed1c l\u00e0 r\u1eebng tr\u1ed3ng v\u00e0o c\u00e1c n\u0103m 1990, 1991, 1992.<\/p>\n<p>H\u1ec7 th\u1ed1ng canh t\u00e1c hi\u1ec7n \u0111ang \u00e1p d\u1ee5ng l\u00e0 tr\u1ed3ng r\u1eebng k\u1ebft h\u1ee3p nu\u00f4i thu\u1ef7 s\u1ea3n d\u01b0\u1edbi t\u00e1n r\u1eebng theo h\u00ecnh th\u1ee9c l\u00e2m ng\u01b0 k\u1ebft h\u1ee3p tr\u00ean to\u00e0n di\u1ec7n t\u00edch.<\/p>\n<h1>1. N\u1ed9i dung v\u00e0 ph\u01b0\u01a1ng ph\u00e1p<\/h1>\n<p>Nghi\u00ean c\u1ee9u c\u00f3 s\u1ef1 tham gia t\u1eadp trung v\u00e0o t\u00ednh hi\u1ec7u qu\u1ea3, t\u00ednh th\u1ef1c t\u1ebf v\u00e0 t\u00ednh kh\u1ea3 thi \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 t\u1ec9a th\u01b0a trong t\u1eebng n\u00f4ng tr\u1ea1i, gi\u00fap n\u00f4ng d\u00e2n b\u00e0y t\u1ecf kh\u1ea3 n\u0103ng v\u00e0 ki\u1ebfn th\u1ee9c c\u1ee7a m\u00ecnh trong vi\u1ec7c t\u00ecm ra gi\u1ea3i ph\u00e1p t\u1ec9a th\u01b0a ph\u00f9 h\u1ee3p v\u1edbi s\u1ea3n xu\u1ea5t, thay v\u00ec ph\u1ea3i th\u1ee5 \u0111\u1ed9ng theo c\u00e1c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a L\u00e2m ng\u01b0 tr\u01b0\u1eddng. Nghi\u00ean c\u1ee9u c\u00f3 s\u1ef1 tham gia t\u1eadp trung v\u00e0o vi\u1ec7c t\u1ea1o ra s\u1ef1 th\u00e0nh th\u1ea1o c\u1ee7a n\u00f4ng d\u00e2n kh\u00f4ng c\u00f3 chuy\u00ean m\u00f4n, t\u1ea1o s\u1ef1 c\u1ed9ng t\u00e1c v\u00e0 chia s\u1ebb quy\u1ebft \u0111\u1ecbnh.. \u0111\u1ec3 t\u1ef1 h\u1ecd c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u ngay tr\u00ean ch\u00ednh n\u00f4ng tr\u1ea1i c\u1ee7a h\u1ecd (B\u00f9i Vi\u1ec7t H\u1ea3i, 2003)<\/p>\n<p>N\u1ed9i dung v\u00e0 ph\u01b0\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y \u1edf B\u1ea3ng 1.<\/p>\n<p><em>B\u1ea3ng 1. N\u1ed9i dung, ph\u01b0\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u c\u00f3 s\u1ef1 tham gia<\/em><\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>N\u1ed9i dung<\/strong><\/td>\n<td><strong>Ph\u01b0\u01a1ng ph\u00e1p<\/strong><\/td>\n<\/tr>\n<tr>\n<td><em>1. \u0110i\u1ec1u tra t\u00ecnh h\u00ecnh s\u1eed d\u1ee5ng \u0111\u1ea5t v\u00e0 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m d\u00e2n sinh kinh t\u1ebf<\/em><\/p>\n<p>\u00b7 Hi\u1ec7n tr\u1ea1ng s\u1eed d\u1ee5ng \u0111\u1ea5t<\/p>\n<p>\u00b7 M\u00f4 h\u00ecnh hi\u1ec7n c\u00f3<\/td>\n<td>&#8211; Ph\u1ecfng v\u1ea5n<\/p>\n<p>&#8211; V\u1ebd b\u1ea3n \u0111\u1ed3 ph\u00e1c th\u1ea3o<\/p>\n<p>&#8211; Ph\u00e2n t\u00edch nh\u00f3m li\u00ean quan<\/td>\n<\/tr>\n<tr>\n<td><em>2.T\u00ecm hi\u1ec3u \u00fd t\u01b0\u1edfng v\u1ec1 k\u1ef9 thu\u1eadt t\u1ec9a th\u01b0a v\u00e0 l\u1ee3i \u00edch c\u1ee7a t\u1ec9a th\u01b0a<\/em><\/td>\n<td>&#8211; Ph\u1ecfng v\u1ea5n b\u00e1n c\u1ea5u tr\u00fac<\/p>\n<p>&#8211; Th\u1ea3o lu\u1eadn nh\u00f3m<\/p>\n<p>&#8211; Nh\u00f3m \u0111i\u1ec3m<\/td>\n<\/tr>\n<tr>\n<td><em>3. L\u1ef1a ch\u1ecdn s\u00e0ng l\u1ecdc c\u00e1c \u00fd t\u01b0\u1edfng.<\/em><\/td>\n<td>Th\u1ea3o lu\u1eadn theo nh\u00f3m \u0111i\u1ec3m, nh\u00f3m li\u00ean quan<\/td>\n<\/tr>\n<tr>\n<td><em>4.Thi\u1ebft k\u1ebf th\u00ed nghi\u1ec7m<\/em><\/p>\n<p>-Ph\u01b0\u01a1ng th\u1ee9c t\u1ec9a<\/p>\n<p>-X\u00e1c \u0111\u1ecbnh tu\u1ed5i t\u1ec9a th\u01b0a r\u1eebng<\/p>\n<p>-M\u1eadt \u0111\u1ed9 ch\u1eeba l\u1ea1i<\/td>\n<td>Th\u1ea3o lu\u1eadn nh\u00f3m<\/td>\n<\/tr>\n<tr>\n<td><em>5. B\u1ed1 tr\u00ed th\u00ed nghi\u1ec7m<\/em><\/p>\n<p>&#8211; Tu\u1ed5i t\u1ec9a th\u01b0a r\u1eebng:c\u00e1c lo\u1ea1i tu\u1ed5i r\u1eebng \u0111\u01b0a v\u00e0o th\u00ed nghi\u1ec7m<\/p>\n<p>&#8211; M\u1eadt \u0111\u1ed9 ch\u1eeba l\u1ea1i<\/p>\n<p>&#8211; Theo d\u00f5i n\u0103ng su\u1ea5t nu\u00f4i t\u00f4m<\/p>\n<p>&#8211; S\u1ea3n ph\u1ea9m trung gian<\/p>\n<p>&#8211; Theo d\u00f5i t\u0103ng tr\u01b0\u1edfng c\u1ee7a r\u1eebng<\/p>\n<p>&#8211; Theo d\u00f5i l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng<\/td>\n<td><em>B\u1ed1 tr\u00ed th\u00ed nghi\u1ec7m ngo\u00e0i \u0111\u1ed3ng <\/em><\/p>\n<p>&#8211; \u00d4 th\u00ed nghi\u1ec7m di\u1ec7n t\u00edch 100 m<sup>2<\/sup>, m\u1ed7i nghi\u1ec7m th\u1ee9c l\u1eb7p l\u1ea1i 3 l\u1ea7n \u0111\u1ec3 theo d\u00f5i t\u0103ng tr\u01b0\u1edfng D &amp;H<\/p>\n<p>&#8211; Thu nh\u1eadp th\u1ee7y s\u1ea3n h\u00e0ng th\u00e1ng t\u00ednh theo kg\/ha m\u1eb7t n\u01b0\u1edbc.<\/p>\n<p>&#8211; S\u1ea3n l\u01b0\u1ee3ng l\u00e2m s\u1ea3n l\u1ea5y ra trong qu\u00e1 tr\u00ecnh t\u1ec9a th\u01b0a theo m<sup>3<\/sup>\/ha.<\/p>\n<p>&#8211; D\u00f9ng khay(1x1m) \u0111\u1ec3 h\u1ee9ng v\u1eadt d\u1ee5ng c\u1ee7a r\u1eebng.<\/td>\n<\/tr>\n<tr>\n<td><em>6.Thu th\u1eadp s\u1ed1 li\u1ec7u<\/em><\/p>\n<p>&#8211; N\u0103ng su\u1ea5t c\u1ee7a r\u1eebng<\/p>\n<p>&#8211; N\u0103ng su\u1ea5t th\u1ee7y s\u1ea3n<\/p>\n<p>&#8211; L\u01b0\u1ee3ng v\u1eadt d\u1ee5ng<\/td>\n<td>&#8211; \u0110o \u0111\u01b0\u1eddng k\u00ednh, chi\u1ec1u cao c\u00e2y r\u1eebng theo \u0111\u1ecbnh k\u1ef3 3 th\u00e1ng\/l\u1ea7n.<\/p>\n<p>&#8211; S\u1ea3n l\u01b0\u1ee3ng th\u1ee7y s\u1ea3n thu \u0111\u01b0\u1ee3c h\u00e0ng th\u00e1ng trong 1 n\u0103m.<\/p>\n<p>&#8211; Thu v\u1eadt d\u1ee5ng tr\u00ean c\u00e1c khay \u0111\u1eb7t t\u1ea1i \u00f4 th\u00ed nghi\u1ec7p theo \u0111\u1ecbnh k\u1ef3 3 th\u00e1ng\/l\u1ea7n, c\u00e2n tr\u1ecdng l\u01b0\u1ee3ng sau khi s\u1ea5y kh\u00f4.<\/td>\n<\/tr>\n<tr>\n<td><em>7. \u0110\u00e1nh gi\u00e1 k\u1ebft qu\u1ea3<\/em><\/td>\n<td>&#8211; S\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p cho \u0111i\u1ec3m t\u1eebng ch\u1ec9 ti\u00eau theo thang \u0111i\u1ec3m t\u1eeb 0- 5 \u0111i\u1ec3m.<\/p>\n<p>\u00b7 T\u0103ng tr\u01b0\u1edfng v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u cao<\/p>\n<p>\u00b7 L\u01b0\u1ee3ng l\u00e2m s\u1ea3n thu \u0111\u01b0\u1ee3c sau khi t\u1ec9a th\u01b0a<\/p>\n<p>\u00b7 L\u01b0\u1ee3ng v\u1eadt d\u1ee5ng gi\u1ea3m thi\u1ec3u tr\u00ean m\u1ed9t \u0111\u01a1n v\u1ecb di\u1ec7n t\u00edch<\/p>\n<p>\u00b7 Gi\u00e1 tr\u1ecb s\u1ea3n ph\u1ea9m t\u00f4m<\/p>\n<p>&#8211; T\u1ed5ng s\u1ed1 \u0111i\u1ec3m c\u00e1c ch\u1ec9 ti\u00eau c\u1ee7a nghi\u1ec7m th\u1ee9c n\u00e0o cao h\u01a1n s\u1ebd \u0111\u01b0\u1ee3c ch\u1ecdn l\u00e0 m\u00f4 h\u00ecnh th\u00edch h\u1ee3p cho t\u1ec9a th\u01b0a r\u1eebng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>2. K\u1ebft qu\u1ea3 v\u00e0 th\u1ea3o lu\u1eadn<\/strong><\/p>\n<p><strong><em>2.1. K\u1ebft qu\u1ea3 t\u00ecm hi\u1ec3u \u00fd t\u01b0\u1edfng v\u1ec1 k\u1ef9 thu\u1eadt v\u00e0 l\u1ee3i \u00edch c\u1ee7a t\u1ec9a th\u01b0a<\/em><\/strong><\/p>\n<p>K\u1ebft qu\u1ea3 ph\u1ecfng v\u1ea5n cho th\u1ea5y \u0111a s\u1ed1 ng\u01b0\u1eddi d\u00e2n trong khu v\u1ef1c nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c h\u1ecfi \u0111\u1ec1u \u0111\u1ed3ng \u00fd v\u1edbi \u00fd t\u01b0\u1edfng ph\u1ea3i t\u1ec9a th\u01b0a r\u1eebng, chi\u1ebfm 92,9%. \u0110i\u1ec1u \u0111\u00f3 n\u00f3i l\u00ean r\u1eb1ng ng\u01b0\u1eddi d\u00e2n th\u1eadt s\u1ef1 c\u00f3 nguy\u1ec7n v\u1ecdng t\u00e1c nghi\u1ec7p v\u00e0o r\u1eebng b\u1eb1ng gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt t\u1ec9a th\u01b0a.<\/p>\n<p>V\u1ec1 m\u1ee5c \u0111\u00edch c\u1ee7a t\u1ec9a th\u01b0a c\u00e1c \u00fd t\u01b0\u1edfng t\u1eadp trung v\u00e0o c\u00e1c m\u1ee5c \u0111\u00edch ch\u00ednh nh\u01b0: gi\u1ea3m l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng chi\u1ebfm 100%, t\u0103ng thu nh\u1eadp t\u1eeb l\u00e2y l\u00e2m s\u1ea3n 64,3%, l\u00e0m t\u0103ng tr\u01b0\u1edfng r\u1eebng chi\u1ebfm 57,1%.<\/p>\n<p>V\u1ec1 ph\u01b0\u01a1ng th\u1ee9c t\u1ec9a c\u00f3 21,42% n\u00f4ng d\u00e2n cho r\u1eb1ng n\u00ean t\u1ec9a t\u1ea7ng tr\u00ean, t\u1ee9c l\u00e0 ch\u1eb7t nh\u1eefng c\u00e2y c\u00f3 \u0111\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u cao v\u01b0\u1ee3t tr\u1ed9i, 2857% n\u00f4ng d\u00e2n quan t\u00e2m \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng r\u1eebng, h\u1ecd th\u00edch l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng th\u1ee9c t\u1ec9a t\u1ea7ng d\u01b0\u1edbi v\u00e0 ch\u1eb7t b\u1ecf nh\u1eefng c\u00e2y x\u1ea5u, ch\u1eeba l\u1ea1i c\u00e2y t\u1ed1t, 50% n\u00f4ng d\u00e2n c\u00f2n l\u1ea1i cho r\u1eb1ng n\u00ean \u00e1p d\u1ee5ng ph\u01b0\u01a1ng th\u1ee9c t\u1ec9a h\u1ed7n h\u1ee3p hay c\u00f2n g\u1ecdi l\u00e0 t\u1ec9a theo kho\u1ea3ng c\u00e1ch c\u00e1ch \u0111\u1ec1u, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y dung ho\u00e0 \u0111\u01b0\u1ee3c 2 ph\u01b0\u01a1ng ph\u00e1p tr\u00ean.<\/p>\n<p>\u0110\u1ed1i v\u1edbi tu\u1ed5i r\u1eebng \u0111\u01b0a v\u00e0o t\u1ec9a th\u01b0a c\u0169ng c\u00f3 nhi\u1ec1u tranh c\u00e3i kh\u00e1c nhau. Tuy nhi\u00ean, c\u00e1c \u00fd ki\u1ebfn t\u1eadp trung v\u1eabn l\u00e0 \u0111\u1ed3ng \u00fd t\u1ec9a \u1edf tu\u1ed5i 10 v\u1edbi t\u1ec9 l\u1ec7 t\u00e1n th\u00e0nh l\u00e0 42,85%, tu\u1ed5i t\u1ec9a th\u01b0a khi c\u00e2y r\u1eebng 11 tu\u1ed5i \u0111\u01b0\u1ee3c s\u1ef1 nh\u1ea5t tr\u00ed v\u1edbi t\u1ef7 l\u1ec7 l\u00e0 28,57%, tu\u1ed5i r\u1eebng 12 \u0111\u1ec1 ngh\u1ecb t\u1ec9a th\u01b0a c\u00f3 21,42%, trong khi tu\u1ed5i \u0111\u1ec1 ngh\u1ecb t\u1ec9a \u1edf tu\u1ed5i 8 ch\u1ec9 c\u00f3 7,14%.<\/p>\n<p>V\u1ec1 m\u1eadt \u0111\u1ed9 c\u00e2y ch\u1eeba l\u1ea1i sau khi t\u1ec9a c\u00f3 28,57% \u00fd ki\u1ebfn cho r\u1eb1ng n\u00ean \u0111\u1ec3 l\u1ea1i m\u1eadt \u0111\u1ed9 c\u00e2y r\u1eebng 5.000 c\u00e2y\/ha l\u00e0 h\u1ee3p l\u00fd, c\u0169ng v\u1edbi t\u1ef7 l\u1ec7 tr\u00ean v\u1edbi \u00fd ki\u1ebfn cho r\u1eb1ng n\u00ean ch\u1ec9 c\u1ea7n ch\u1eeba l\u1ea1i 3.500 c\u00e2y\/ha l\u00e0 th\u00edch h\u1ee3p, trong khi c\u00f3 \u0111\u1ebfn 42,85% \u00fd ki\u1ebfn \u0111\u1ed3ng \u00fd m\u1eadt \u0111\u1ed9 c\u00e2y r\u1eebng ch\u1eeba l\u1ea1i l\u00e0 4.250 c\u00e2y\/ha.<\/p>\n<p><strong><em>2.2. K\u1ebft qu\u1ea3 l\u1ef1a ch\u1ecdn s\u00e0ng l\u1ecdc c\u00e1c \u00fd t\u01b0\u1edfng<\/em><\/strong><\/p>\n<p>Sau khi th\u1ea3o lu\u1eadn nh\u00f3m c\u00e1c h\u1ed9 n\u00f4ng d\u00e2n nh\u1ea5t tr\u00ed \u00e1p d\u1ee5ng ph\u01b0\u01a1ng th\u1ee9c t\u1ec9a th\u01b0a c\u00e1ch \u0111\u1ec1u, kh\u00f4ng c\u1ea7n ph\u1ea3i l\u00e0m th\u1eed nghi\u1ec7m. Tuy nhi\u00ean, v\u1ec1 m\u1eadt \u0111\u1ed9 c\u00e2y ch\u1eeba l\u1ea1i c\u00e0n \u0111\u01b0a v\u00e0o th\u1eed nghi\u1ec7m xem m\u1eadt \u0111\u1ed9 3.500 c\u00e2y\/ha hay 4.250 c\u00e2y\/ha ho\u1eb7c l\u00e0 5.000 c\u00e2y\/ha l\u00e0 th\u00edch h\u1ee3p v\u1edbi m\u1ee5c \u0111\u00edch c\u1ee7a vi\u1ec7c t\u1ec9a th\u01b0a. T\u01b0\u01a1ng t\u1ef1, tu\u1ed5i r\u1eebng c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o th\u1eed nghi\u1ec7m l\u00e0 tu\u1ed5i 10, tu\u1ed5i 11 v\u00e0 tu\u1ed5i 12 \u0111\u1ec3 t\u00ecm hi\u1ec3u xem tu\u1ed5i n\u00e0o mang l\u1ea1i l\u1ee3i \u00edch h\u01a1n.<\/p>\n<p><strong><em>2.3. L\u1ef1a ch\u1ecdn h\u1ed9 v\u00e0 quy m\u00f4 di\u1ec7n t\u00edch th\u1eed nghi\u1ec7m<\/em><\/strong><\/p>\n<p>H\u1ed9 \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn th\u1eed nghi\u1ec7m l\u00e0 nh\u1eefng h\u1ed9 c\u00f3 di\u1ec7n t\u00edch r\u1eebng t\u01b0\u01a1ng \u0111\u01b0\u01a1ng nhau, kh\u00f4ng c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 \u0111\u1ecba h\u00ecnh, \u0111\u1ea5t \u0111ai, m\u1eadt \u0111\u1ed9 c\u00e2y r\u1eebng ban \u0111\u1ea7u, t\u1ef7 l\u1ec7 k\u00eanh b\u1edd hi\u1ec7n c\u00f3. K\u1ebft qu\u1ea3 l\u1ef1a ch\u1ecdn \u0111\u01b0\u1ee3c 6 h\u1ed9 tham gia, v\u1edbi t\u1ed5ng di\u1ec7n t\u00edch 59.02ha, trong \u0111\u00f3 di\u1ec7n t\u00edch r\u1eebng \u0111\u01b0a v\u00e0o t\u1ec9a th\u01b0a th\u1eed nghi\u1ec7m 27.26ha, di\u1ec7n t\u00edch \u0111\u00f4i ch\u1ee9ng 8.1ha, v\u00e0 di\u1ec7n t\u00edch k\u00eanh b\u1edd nu\u00f4i t\u00f4m l\u00e0 17.4ha, c\u00f2n l\u1ea1i d\u1ea1ng \u0111\u1ea5t kh\u00e1c 6.26ha.<\/p>\n<p><strong><em>2.4. B\u1ed1 tr\u00ed th\u00ed nghi\u1ec7m<\/em><\/strong><\/p>\n<p><em>2.4.1.Tu\u1ed5i t\u1ec9a th\u01b0a r\u1eebng: C\u00e1c lo\u1ea1i tu\u1ed5i r\u1eebng \u0111\u01b0a v\u00e0o th\u00ed nghi\u1ec7m: bao g\u1ed3m tu\u1ed5i r\u1eebng<\/em>10, tu\u1ed5i 11 v\u00e0 tu\u1ed5i 12, \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed t\u1ea1i 3 h\u1ed9. C\u00e1c nghi\u1ec7m th\u1ee9c \u0111\u1ec1u c\u00f3 c\u00f9ng m\u1eadt \u0111\u1ed9 ch\u1eeba l\u1ea1i nh\u01b0 nhau l\u00e0 4.250 c\u00e2y\/ha (H\u00ecnh 1-a)<\/p>\n<p><em>2.4.2. M\u1eadt \u0111\u1ed9 ch\u1eeba l\u1ea1i: C\u00e1c d\u1ea1ng m\u1eadt \u0111\u1ed9 c\u00e2y r\u1eebng ch\u1eeba l\u1ea1i l\u00e0 4.250 c\u00e2y\/ha, 3.500<\/em>c\u00e2y\/ha v\u00e0 5.000m c\u00e2y\/ha (H\u00ecnh 1-b)<\/p>\n<p><em>H\u00ecnh 1. S\u01a1 \u0111\u1ed3 b\u1ed1 tr\u00ed th\u00ed nghi\u1ec7m v\u1ec1 tu\u1ed5i r\u1eebng v\u1ec1 m\u1eadt \u0111\u1ed9 c\u00e2y ch\u1eeba l\u1ea1i<\/em><\/p>\n<p><strong><em>2.5. Thu th\u1eadp s\u1ed1 li\u1ec7u<\/em><\/strong><\/p>\n<p><em>&#8211; T\u0103ng tr\u01b0\u1edfng c\u1ee7a r\u1eebng<\/em><\/p>\n<p>S\u1ed1 li\u1ec7u \u0111o \u0111\u1ebfm t\u0103ng tr\u01b0\u1edfng r\u1eebng trong th\u1eddi gian nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 trong B\u1ea3ng 2 v\u00e0 B\u1ea3ng 3<\/p>\n<p><em>B\u1ea3ng 3.1. K\u1ebft qu\u1ea3 thu th\u1eadp s\u1ed1 li\u1ec7u v\u1ec1 t\u0103ng tr\u01b0\u1edfng r\u1eebng theo \u0111\u01b0\u1eddng k\u00ednh <\/em><\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>T\u00ean nghi\u1ec7m th\u1ee9c<\/strong><\/td>\n<td><strong>\u0110\u01b0\u1eddng k\u00ednh &#8211; D1.3(cm)<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\n<h5>Sau 3 th\u00e1ng<\/h5>\n<\/td>\n<td><strong>Sau 6 th\u00e1ng<\/strong><\/td>\n<td><strong>Sau 12 th\u00e1ng<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 1:(\u00f4tc 1,2,3)<\/td>\n<td>0.147<\/td>\n<td>0.399<\/td>\n<td>0.545<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 2:(\u00f4tc 4,5,6)<\/td>\n<td>0.162<\/td>\n<td>0.467<\/td>\n<td>0.735<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 3:(\u00f4tc 7,8,9)<\/td>\n<td>0.161<\/td>\n<td>0.541<\/td>\n<td>0.762<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c \u0111\u1ed1i ch\u1ee9ng :(\u00f4tc 10,11,12)<\/td>\n<td>0.109<\/td>\n<td>0.337<\/td>\n<td>0.452<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 4:(\u00f4tc 13,14,15)<\/td>\n<td>0.158<\/td>\n<td>0.589<\/td>\n<td>0.843<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 5:(\u00f4tc 16,17,18)<\/td>\n<td>0.151<\/td>\n<td>0.490<\/td>\n<td>0.716<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>B\u1ea3ng 3. K\u1ebft qu\u1ea3 thu th\u1eadp s\u1ed1 li\u1ec7u v\u1ec1 t\u0103ng tr\u01b0\u1edfng r\u1eebng theo chi\u1ec1u cao<\/em><\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<h5>T\u00ean nghi\u1ec7m th\u1ee9c<\/h5>\n<\/td>\n<td><strong>T\u0103ng tr\u01b0\u1edfng chi\u1ec1u cao BQ (m)<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>Sau 3 th\u00e1ng<\/strong><\/td>\n<td><strong>Sau 6 th\u00e1ng<\/strong><\/td>\n<td><strong>Sau 12 th\u00e1ng<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 1:(\u00f4tc 1,2,3)<\/td>\n<td>0.33<\/td>\n<td>0.49<\/td>\n<td>0.81<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 2:(\u00f4tc 4,5,6)<\/td>\n<td>0.45<\/td>\n<td>0.62<\/td>\n<td>0.95<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 3:(\u00f4tc 7,8,9)<\/td>\n<td>0.37<\/td>\n<td>0.67<\/td>\n<td>0.99<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c \u0111\u1ed1i ch\u1ee9ng :(\u00f4tc 10,11,12)<\/td>\n<td>0.40<\/td>\n<td>0.58<\/td>\n<td>1.07<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 4:(\u00f4tc 13,14,15)<\/td>\n<td>0.42<\/td>\n<td>0.57<\/td>\n<td>0.83<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 5:(\u00f4tc 16,17,18)<\/td>\n<td>0.53<\/td>\n<td>0.65<\/td>\n<td>0.85<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>&#8211; Gi\u00e1 tr\u1ecb th\u1ee7y s\u1ea3n h\u00e0ng th\u00e1ng t\u00ednh theo c\u00e1c h\u1ed9 d\u00e2n tham gia<\/em>th\u1eed nghi\u1ec7m trong v\u00f2ng 12 th\u00e1ng sau khi t\u1ec9a th\u01b0a (t\u01b0\u01a1ng \u1ee9ng v\u1edbi 2 v\u1ee5 nu\u00f4i t\u00f4m), \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong B\u1ea3ng 4<\/p>\n<p><em>B\u1ea3ng 4. K\u1ebft qu\u1ea3 thu th\u1eadp s\u1ed1 li\u1ec7u v\u1ec1 gi\u00e1 tr\u1ecb s\u1ea3n ph\u1ea9m thu ho\u1ea1ch thu\u1ef7 s\u1ea3n<\/em><\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>T\u00ean nghi\u1ec7m th\u1ee9c<\/strong><\/td>\n<td><strong>Gi\u00e1 tr\u1ecb s\u1ea3n ph\u1ea9m thu\u1ef7 s\u1ea3n (Tri\u1ec7u \u0111\u1ed3ng)<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>Sau 3<\/strong><\/p>\n<p><strong>th\u00e1ng<\/strong><\/td>\n<td><strong>Sau 6 th\u00e1ng<\/strong><\/td>\n<td><strong>Sau 9<\/strong><\/p>\n<p><strong>th\u00e1ng<\/strong><\/td>\n<td><strong>Sau 12<\/strong><\/p>\n<p><strong>th\u00e1ng<\/strong><\/td>\n<td><strong>T\u1ed5ng<\/strong><\/p>\n<p><strong>c\u1ed9ng<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 1<\/td>\n<td>1.364<\/td>\n<td>0.602<\/td>\n<td>1.170<\/td>\n<td>2.110<\/td>\n<td>5.246<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 2<\/td>\n<td>3.192<\/td>\n<td>2.192<\/td>\n<td>1.512<\/td>\n<td>2.832<\/td>\n<td>9.728<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 3<\/td>\n<td>1.466<\/td>\n<td>3.690<\/td>\n<td>3.779<\/td>\n<td>1.429<\/td>\n<td>10.364<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c \u0111\u1ed1i ch\u1ee9ng<\/td>\n<td>0.901<\/td>\n<td>0.748<\/td>\n<td>0.592<\/td>\n<td>0.574<\/td>\n<td>2.815<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 4<\/td>\n<td>2.682<\/td>\n<td>3.407<\/td>\n<td>1.766<\/td>\n<td>2.079<\/td>\n<td>9.934<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 5<\/td>\n<td>2.769<\/td>\n<td>1.783<\/td>\n<td>1.848<\/td>\n<td>1.164<\/td>\n<td>7.563<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>&#8211; S\u1ea3n l\u01b0\u1ee3ng l\u00e2m s\u1ea3n l\u1ea5y ra trong qu\u00e1 tr\u00ecnh t\u1ec9a th\u01b0a theo m<sup>3<\/sup>\/ha:<\/em>L\u00e2m s\u1ea3n sau khi t\u1ec9a th\u01b0a \u0111\u01b0\u1ee3c h\u1ed9 d\u00e2n v\u00e0 c\u00e1n b\u1ed9 L\u00e2m ng\u01b0 tr\u01b0\u1eddng \u0111o \u0111\u1ebfm s\u1ed1 l\u01b0\u1ee3ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m, ghi ch\u00e9p v\u00e0o bi\u1ec3u theo d\u00f5i, sau \u0111\u00f3 ph\u00e2n th\u00e0nh hai lo\u1ea1i th\u01b0\u01a1ng ph\u1ea9m l\u00e0 g\u1ed7 v\u00e0 c\u1ee7i \u0111\u1ec3 b\u00e1n cho kh\u00e1ch h\u00e0ng<\/p>\n<p><em>B\u1ea3ng 5. K\u1ebft qu\u1ea3 thu th\u1eadp s\u1ed1 li\u1ec7u v\u1ec1 l\u01b0\u1ee3ng l\u00e2m s\u1ea3n t\u1ec9a th\u01b0a<\/em><\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<h5>H\u1ecd t\u00ean h\u1ed9<\/h5>\n<\/td>\n<td>\n<h5>Nghi\u1ec7m th\u1ee9c<\/h5>\n<\/td>\n<td>\n<h1>Di\u1ec7n t\u00edch<\/h1>\n<p><strong>t\u1ec9a th\u01b0a (ha)<\/strong><\/td>\n<td>\n<h5>S\u1ea3n l\u01b0\u1ee3ng\/ha<\/h5>\n<\/td>\n<td>\n<h3>X\u1ebfp<\/h3>\n<p><strong>h\u1ea1ng<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>G\u1ed7 ( m<sup>3<\/sup>)<\/strong><\/td>\n<td><strong>C\u1ee7i ( ster)<\/strong><\/td>\n<\/tr>\n<tr>\n<td>L\u01b0u Qu\u1ed1c To\u1ea3n<\/td>\n<td>Nghi\u1ec7m th\u1ee9c 5<\/td>\n<td>6,7<\/td>\n<td>9,06<\/td>\n<td>12,08<\/td>\n<td>5<\/td>\n<\/tr>\n<tr>\n<td>Nguy\u1ec5n Th\u1ecb Th\u01a1i<\/td>\n<td>Nghi\u1ec7m th\u1ee9c 4<\/td>\n<td>2,8<\/td>\n<td>15,67<\/td>\n<td>11,07<\/td>\n<td>1<\/td>\n<\/tr>\n<tr>\n<td>L\u00ea V\u0103n Li\u1ebfm<\/td>\n<td>Nghi\u1ec7m th\u1ee9c 3<\/td>\n<td>6<\/td>\n<td>9,72<\/td>\n<td>10,62<\/td>\n<td>3<\/td>\n<\/tr>\n<tr>\n<td>L\u00ea A<\/td>\n<td>\u0110\u1ed1i ch\u1ee9ng<\/td>\n<td>0<\/td>\n<\/tr>\n<tr>\n<td>L\u00ea V\u0103n Ng\u1ecdc<\/td>\n<td>Nghi\u1ec7m th\u1ee9c 1<\/td>\n<td>4,38<\/td>\n<td>9,42<\/td>\n<td>8,37<\/td>\n<td>4<\/td>\n<\/tr>\n<tr>\n<td>L\u00ea v\u0103n M\u00f3t<\/td>\n<td>Nghi\u1ec7m th\u1ee9c 2<\/td>\n<td>7,38<\/td>\n<td>10,06<\/td>\n<td>7,45<\/td>\n<td>2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Theo B\u1ea3ng 5 th\u00ec l\u01b0\u1ee3ng l\u00e2m s\u1ea3n l\u1ea5y ra thay \u0111\u1ed5i theo c\u00e1c nghi\u1ec7m th\u1ee9c, trong \u0111\u00f3 nghi\u1ec7m th\u1ee9c 4 c\u00f3 s\u1ed1 l\u01b0\u1ee3ng l\u00e2m s\u1ea3n l\u1ea5y ra tr\u00ean m\u1ed9t \u0111\u01a1n v\u1ecb di\u1ec7n t\u00edch l\u00e0 cao nh\u1ea5t 15.67 m<sup>3<\/sup> g\u1ed7 v\u00e0 11.07 ster c\u1ee7i, cu\u1ed1i c\u00f9ng th\u1ea5p nh\u1ea5t l\u00e0 nghi\u1ec7m th\u1ee9c 5.<\/p>\n<p><em>&#8211; Theo d\u00f5i l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng<\/em><\/p>\n<p><em>B\u1ea3ng 6. K\u1ebft qu\u1ea3 thu th\u1eadp s\u1ed1 li\u1ec7u v\u1ec1 l\u01b0\u1ee3ng l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng xu\u1ed1ng n\u1ec1n r\u1eebng<\/em><\/p>\n<p>(T\u1ed5ng l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng thu \u0111\u01b0\u1ee3c sau m\u1ed9t n\u0103m t\u1eeb 18\/10\/02 \u201317\/10\/03)<\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>T\u00ean nghi\u1ec7m th\u1ee9c<\/strong><\/td>\n<td><strong>Tr\u1ecdng l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng kh\u00f4 (g)<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>3 th\u00e1ng<\/strong><\/td>\n<td><strong>6 th\u00e1ng<\/strong><\/td>\n<td><strong>9 th\u00e1ng<\/strong><\/td>\n<td><strong>12 th\u00e1ng<\/strong><\/td>\n<td><strong>T\u1ed5ng chung<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 1:(\u00f4tc 1,2,3)<\/td>\n<td>396,7<\/td>\n<td>238,3<\/td>\n<td>231,0<\/td>\n<td>138,0<\/td>\n<td>1004,0<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 2:(\u00f4tc 4,5,6)<\/td>\n<td>320,7<\/td>\n<td>243,3<\/td>\n<td>204,0<\/td>\n<td>150,7<\/td>\n<td>918,7<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 3:(\u00f4tc 7,8,9)<\/td>\n<td>318,7<\/td>\n<td>81,0<\/td>\n<td>176,7<\/td>\n<td>148,0<\/td>\n<td>724.3<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c \u0111\u1ed1i ch\u1ee9ng (10,11,12)<\/td>\n<td>558,3<\/td>\n<td>335,0<\/td>\n<td>347,0<\/td>\n<td>306,7<\/td>\n<td>1547,0<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 4:(\u00f4tc 13,14,15)<\/td>\n<td>366,7<\/td>\n<td>324,3<\/td>\n<td>240,0<\/td>\n<td>134,3<\/td>\n<td>1065,3<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 5:(\u00f4tc 16,17,18)<\/td>\n<td>286,7<\/td>\n<td>208,7<\/td>\n<td>236,7<\/td>\n<td>123,3<\/td>\n<td>855,3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>B\u1ea3ng 6 cho th\u1ea5y tr\u1ecdng l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng thu \u0111\u01b0\u1ee3c sau th\u1eddi gian ba th\u00e1ng \u1edf c\u00e1c nghi\u1ec7m th\u1ee9c t\u1ec9a th\u01b0a c\u00f3 s\u1ef1 kh\u00e1c nhau. L\u01b0\u1ee3ng v\u1eadt d\u1ee5ng thu \u0111\u01b0\u1ee3c 286,7g\/100m<sup>2<\/sup> l\u00e0 \u00edt nh\u1ea5t \u1edf nghi\u1ec7m th\u1ee9c 5 v\u1edbi m\u1eadt \u0111\u1ed9 ch\u1eeba l\u1ea1i l\u00e0 4250 c\u00e2y\/ha, cao nh\u1ea5t \u1edf nghi\u1ec7m th\u1ee9c \u0111\u1ed1i ch\u1ee9ng 558,3g v\u00e0 ti\u1ebfp \u0111\u1ebfn nghi\u1ec7m th\u1ee9c 1 l\u00e0 396,7g.<\/p>\n<p>Tr\u1ecdng l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng thu \u0111\u01b0\u1ee3c sau th\u1eddi gian t\u1eeb th\u00e1ng th\u1ee9 4 \u0111\u1ebfn th\u00e1ng th\u1ee9 6 sau khi t\u1ec9a th\u01b0a, l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng thu \u0111\u01b0\u1ee3c 81g\/100m<sup>2 <\/sup>l\u00e0 \u00edt nh\u1ea5t \u1edf nghi\u1ec7m th\u1ee9c 3, cao nh\u1ea5t \u1edf nghi\u1ec7m th\u1ee9c \u0111\u1ed1i ch\u1ee9ng 335g v\u00e0 ti\u1ebfp \u0111\u1ebfn nghi\u1ec7m th\u1ee9c 4 l\u00e0 324,3g<\/p>\n<p>T\u1eeb th\u00e1ng th\u1ee9 7 \u0111\u1ebfn th\u00e1ng th\u1ee9 9 l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng thu \u0111\u01b0\u1ee3c cao nh\u1ea5t v\u1eabn l\u00e0 nghi\u1ec7m th\u1ee9c \u0111\u1ed1i ch\u1ee9ng v\u1edbi 347g\/100m<sup>2<\/sup>, th\u1ea5p nh\u1ea5t l\u00e0 nghi\u1ec7m th\u1ee9c 3 v\u1edbi 176,7g. Tr\u1ecdng l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng sau th\u1eddi gian t\u1eeb th\u00e1ng th\u1ee9 10 \u0111\u1ebfn h\u1ebft th\u00e1ng th\u1ee9 12 sau t\u1ec9a th\u01b0a, l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng thu \u0111\u01b0\u1ee3c 123,3g\/100m<sup>2<\/sup> l\u00e0 \u00edt nh\u1ea5t \u1edf nghi\u1ec7m th\u1ee9c 5 nhi\u1ec1u nh\u1ea5t \u1edf nghi\u1ec7m th\u1ee9c \u0111\u1ed1i ch\u1ee9ng (306.7g).<\/p>\n<p>B\u1ea3ng 6 c\u0169ng cho th\u1ea5y r\u1eb1ng d\u00f9 l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng \u1edf c\u00e1c l\u1ea7n thu m\u1eabu theo \u0111\u1ecbnh k\u1ef3 3 th\u00e1ng\/l\u1ea7n c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t theo t\u1eebng l\u1ea7n thu th\u1eadp nh\u01b0ng t\u00ednh chung cho c\u1ea3 n\u0103m th\u00ec nghi\u1ec7m th\u1ee9c thu \u0111\u01b0\u1ee3c l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng \u00edt nh\u1ea5t l\u00e0 nghi\u1ec7m th\u1ee9c 3, v\u1edbi m\u1eadt \u0111\u1ed9 ch\u1eeba l\u1ea1i l\u00e0 3500 c\u00e2y\/ha, cao nh\u1ea5t v\u1eabn \u1edf nghi\u1ec7m th\u1ee9c \u0111\u1ed1i ch\u1ee9ng 1547g.<\/p>\n<p><strong><em>2.6. \u0110\u00e1nh gi\u00e1 k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m<\/em><\/strong><\/p>\n<p><em>2.6.1. \u0110\u00e1nh gi\u00e1 k\u1ebft qu\u1ea3 t\u0103ng tr\u01b0\u1edfng v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u cao<\/em><\/p>\n<p>Th\u1ec3 hi\u1ec7n b\u1eb1ng \u0111i\u1ec3m tr\u00ean c\u01a1 s\u1edf t\u1ec9 l\u1ec7 ph\u1ea7n tr\u0103m c\u1ee7a c\u00e1c nghi\u1ec7m th\u1ee9c so v\u1edbi nghi\u1ec7m th\u1ee9c \u0111\u1ed1i ch\u1ee9ng, \u0111\u01b0\u1ee3c ch\u1ec9 ra trong B\u1ea3ng 7 v\u00e0 B\u1ea3ng 8.<\/p>\n<p><em>B\u1ea3ng 7. \u0110i\u1ec3m \u0111\u00e1nh gi\u00e1 t\u0103ng tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh c\u00e2y r\u1eebng \u1edf c\u00e1c nghi\u1ec7m th\u1ee9c th\u00ed nghi\u1ec7m<\/em><\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>T\u00ean nghi\u1ec7m th\u1ee9c<\/strong><\/td>\n<td><strong>\u0110\u01b0\u1eddng k\u00ednh &#8211; D1.3(cm)<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>Sau 3 th\u00e1ng<\/strong><\/td>\n<td><strong>Sau 6 th\u00e1ng<\/strong><\/td>\n<td><strong>Sau 12 th\u00e1ng<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>%\u0111\u1ed1i ch\u1ee9ng<\/strong><\/td>\n<td><strong>Cho \u0111i\u1ec3m<\/strong><\/td>\n<td><strong>%\u0111\u1ed1i ch\u1ee9ng<\/strong><\/td>\n<td><strong>Cho \u0111i\u1ec3m<\/strong><\/td>\n<td><strong>%\u0111\u1ed1i ch\u1ee9ng<\/strong><\/td>\n<td><strong>Cho \u0111i\u1ec3m<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 1:(\u00f4tc 1,2,3)<\/td>\n<td>134.5<\/td>\n<td>1<\/td>\n<td>118.3<\/td>\n<td>1<\/td>\n<td>110.0<\/td>\n<td>1<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 2:(\u00f4tc 4,5,6)<\/td>\n<td>148.2<\/td>\n<td>5<\/td>\n<td>138.6<\/td>\n<td>2<\/td>\n<td>122.6<\/td>\n<td>2<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 3:(\u00f4tc 7,8,9)<\/td>\n<td>147.6<\/td>\n<td>4<\/td>\n<td>160.6<\/td>\n<td>4<\/td>\n<td>153.5<\/td>\n<td>4<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c \u0111\u1ed1i ch\u1ee9ng :(\u00f4tc 10,11,12)<\/td>\n<td>100.0<\/td>\n<td>0<\/td>\n<td>100.0<\/td>\n<td>0<\/td>\n<td>100.0<\/td>\n<td>0<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 4:(\u00f4tc 13,14,15)<\/td>\n<td>144.6<\/td>\n<td>3<\/td>\n<td>174.7<\/td>\n<td>5<\/td>\n<td>165.8<\/td>\n<td>5<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 5:(\u00f4tc 16,17,18)<\/td>\n<td>137.8<\/td>\n<td>2<\/td>\n<td>145.4<\/td>\n<td>3<\/td>\n<td>144.7<\/td>\n<td>3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>B\u1ea3ng 8. \u0110i\u1ec3m \u0111\u00e1nh gi\u00e1 t\u0103ng tr\u01b0\u1edfng chi\u1ec1u cao c\u00e2y r\u1eebng \u1edf c\u00e1c nghi\u1ec7m th\u1ee9c th\u00ed nghi\u1ec7m<\/em><\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>T\u00ean nghi\u1ec7m th\u1ee9c<\/strong><\/td>\n<td><strong>\u0110\u01b0\u1eddng k\u00ednh &#8211; D1.3(cm)<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>Sau 3 th\u00e1ng<\/strong><\/td>\n<td><strong>Sau 6 th\u00e1ng<\/strong><\/td>\n<td><strong>Sau 12 th\u00e1ng<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>%\u0111\u1ed1i ch\u1ee9ng<\/strong><\/td>\n<td><strong>Cho \u0111i\u1ec3m<\/strong><\/td>\n<td><strong>%\u0111\u1ed1i ch\u1ee9ng<\/strong><\/td>\n<td><strong>Cho \u0111i\u1ec3m<\/strong><\/td>\n<td><strong>%\u0111\u1ed1i ch\u1ee9ng<\/strong><\/td>\n<td><strong>Cho \u0111i\u1ec3m<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 1:(\u00f4tc 1,2,3)<\/td>\n<td>82.7<\/td>\n<td>0<\/td>\n<td>84.0<\/td>\n<td>0<\/td>\n<td>75.8<\/td>\n<td>0<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 2:(\u00f4tc 4,5,6)<\/td>\n<td>112.4<\/td>\n<td>4<\/td>\n<td>105.7<\/td>\n<td>3<\/td>\n<td>88.5<\/td>\n<td>3<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 3:(\u00f4tc 7,8,9)<\/td>\n<td>91.7<\/td>\n<td>1<\/td>\n<td>114.9<\/td>\n<td>5<\/td>\n<td>92.2<\/td>\n<td>4<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c \u0111\u1ed1i ch\u1ee9ng :(\u00f4tc 10,11,12)<\/td>\n<td>100.0<\/td>\n<td>2<\/td>\n<td>100.0<\/td>\n<td>2<\/td>\n<td>100.0<\/td>\n<td>5<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 4:(\u00f4tc 13,14,15)<\/td>\n<td>104.1<\/td>\n<td>3<\/td>\n<td>98.3<\/td>\n<td>1<\/td>\n<td>77.3<\/td>\n<td>1<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 5:(\u00f4tc 16,17,18)<\/td>\n<td>130.6<\/td>\n<td>5<\/td>\n<td>112.0<\/td>\n<td>4<\/td>\n<td>79.2<\/td>\n<td>2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>B\u1ea3ng 9. \u0110i\u1ec3m \u0111\u00e1nh gi\u00e1 l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng gi\u1ea3m thi\u1ec3u \u1edf c\u00e1c nghi\u1ec7m th\u1ee9c th\u00ed nghi\u00d6m<\/em><\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<h5>T\u00ean nghi\u1ec7m th\u1ee9c<\/h5>\n<\/td>\n<td><strong>Tr\u1ecdng l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng <\/strong>(g\/100 m<sup>2<\/sup>)<\/td>\n<\/tr>\n<tr>\n<td><strong>Sau 3 th\u00e1ng<\/strong><\/td>\n<td><strong>Sau 6 th\u00e1ng<\/strong><\/td>\n<td><strong>Sau 12 th\u00e1ng<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>%\u0111\u1ed1i ch\u1ee9ng<\/strong><\/td>\n<td><strong>Cho \u0111i\u1ec3m<\/strong><\/td>\n<td><strong>%\u0111\u1ed1i ch\u1ee9ng<\/strong><\/td>\n<td><strong>Cho \u0111i\u1ec3m<\/strong><\/td>\n<td><strong>%\u0111\u1ed1i ch\u1ee9ng<\/strong><\/td>\n<td><strong>Cho \u0111i\u1ec3m<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 1:(\u00f4tc 1,2,3)<\/td>\n<td>71.0<\/td>\n<td>1<\/td>\n<td>71.1<\/td>\n<td>2<\/td>\n<td>64.9<\/td>\n<td>2<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 2:(\u00f4tc 4,5,6)<\/td>\n<td>57.4<\/td>\n<td>3<\/td>\n<td>63.1<\/td>\n<td>3<\/td>\n<td>59.4<\/td>\n<td>3<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 3:(\u00f4tc 7,8,9)<\/td>\n<td>57.1<\/td>\n<td>4<\/td>\n<td>44.7<\/td>\n<td>5<\/td>\n<td>46.8<\/td>\n<td>5<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed1i ch\u1ee9ng :(\u00f4tc 10,11,12)<\/td>\n<td>100.0<\/td>\n<td>0<\/td>\n<td>100.0<\/td>\n<td>0<\/td>\n<td>100.0<\/td>\n<td>0<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 4:(\u00f4tc 13,14,15)<\/td>\n<td>65.7<\/td>\n<td>2<\/td>\n<td>77.4<\/td>\n<td>1<\/td>\n<td>68.9<\/td>\n<td>1<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 5:(\u00f4tc 16,17,18)<\/td>\n<td>51.3<\/td>\n<td>5<\/td>\n<td>55.4<\/td>\n<td>4<\/td>\n<td>55.3<\/td>\n<td>4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>B\u1ea3ng 10. \u0110i\u1ec3m \u0111\u00e1nh gi\u00e1 l\u01b0\u1ee3ng l\u00e2m s\u1ea3n v\u00e0 gi\u00e1 tr\u1ecb s\u1ea3n ph\u1ea9m th\u1ee7 s\u1ea3n thu \u0111\u01b0\u1ee3c t\u1eeb c\u00e1c nghi\u1ec7m th\u1ee9c th\u00ed nghi\u1ec7m<\/em><\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>T\u00ean nghi\u1ec7m th\u1ee9c<\/strong><\/td>\n<td><strong>S\u1ea3n l\u01b0\u1ee3ng l\u00e2m s\u1ea3n\/ ha<\/strong><\/td>\n<td><strong>Gi\u00e1 tr\u1ecb th\u1ee7y s\u1ea3n\/ 1ha m\u1eb7t n\u01b0\u1edbc<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>G\u1ed7 ( m<sup>3<\/sup>)<\/strong><\/td>\n<td><strong>C\u1ee7i ( ster)<\/strong><\/td>\n<td><strong>C. \u0111I\u1ec3m<\/strong><\/td>\n<td><strong>Gi\u00e1 tr\u1ecb (\u0111)<\/strong><\/td>\n<td><strong>%\u0111.ch\u1ee9ng<\/strong><\/td>\n<td><strong>Cho \u0111i\u1ec3m<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 1<\/td>\n<td>9.42<\/td>\n<td>8.37<\/td>\n<td>2<\/td>\n<td>1,873,429<\/td>\n<td>186.3<\/td>\n<td>1<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 2<\/td>\n<td>10.06<\/td>\n<td>7.45<\/td>\n<td>4<\/td>\n<td>2,779,429<\/td>\n<td>276.5<\/td>\n<td>4<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 3<\/td>\n<td>9.72<\/td>\n<td>10.62<\/td>\n<td>3<\/td>\n<td>3,048,235<\/td>\n<td>303.2<\/td>\n<td>5<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c \u0111\u1ed1i ch\u1ee9ng<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>1,005,357<\/td>\n<td>100<\/td>\n<td>0<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 4<\/td>\n<td>15.67<\/td>\n<td>11.07<\/td>\n<td>5<\/td>\n<td>3,547,857<\/td>\n<td>252.9<\/td>\n<td>3<\/td>\n<\/tr>\n<tr>\n<td>Nghi\u1ec7m th\u1ee9c 5<\/td>\n<td>9.06<\/td>\n<td>12.08<\/td>\n<td>1<\/td>\n<td>2,160,886<\/td>\n<td>214.9<\/td>\n<td>2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>B\u1ea3ng 11. \u0110\u00e1nh gi\u00e1 k\u1ebft qu\u1ea3 th\u00ed nghi\u1ec7m th\u00f4ng qua c\u00e1c ch\u1ec9 ti\u00eau theo d\u00f5i t\u0103ng tr\u01b0\u1edfng r\u1eebng, gi\u1ea3m thi\u1ec3u l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng, s\u1ea3n ph\u1ea9m l\u00e2m s\u1ea3n v\u00e0 gi\u00e1 tr\u1ecb s\u1ea3n l\u01b0\u1ee3ng thu\u1ef7 s\u1ea3n thu \u0111\u01b0\u1ee3c<\/em><\/p>\n<ol>\n<li><em>Sau 3 th\u00e1ng<\/em><\/li>\n<\/ol>\n<table>\n<tbody>\n<tr>\n<td><strong>Ch\u1ec9 ti\u00eau \u0111\u00e1nh gi\u00e1<\/strong><\/td>\n<td><strong>Thang \u0111i\u1ec3m \u0111\u00e1nh gi\u00e1 chung (0 \u2013 5 \u0111i\u1ec3m)<\/strong><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Ph&aacute;t tri\u1ec3n k\u1ef9 thu\u1eadt t\u1ec9a th\u01b0a r\u1eebng \u0111\u01b0\u1edbc (Rhizophora apiculata) c&oacute; s\u1ef1 tham gia, t\u1ea1i x&atilde; Tam Giang \u0110&ocirc;ng, huy\u1ec7n N\u0103m C\u0103n, t\u1ec9nh C&agrave; Mau Vi\u1ec7c s\u1ea3n xu\u1ea5t k\u1ebft h\u1ee3p gi\u1eefa r\u1eebng ng\u1eadp m\u1eb7n v&agrave; nu&ocirc;i t&ocirc;m trong c&aacute;c n&ocirc;ng tr\u1ea1i, \u0111&ograve;i h\u1ecfi ph\u1ea3i c&oacute; c&aacute;c bi\u1ec7n ph&aacute;p k\u1ef9 thu\u1eadt h\u1ee3p l&yacute;. R\u1eebng \u0110\u01b0\u1edbc sau khi kh&eacute;p t&aacute;n th\u01b0\u1eddng c&oacute; t\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng v\u1ec1 sinh kh\u1ed1i r\u1ea5t cao, d\u1eabn \u0111\u1ebfn l\u01b0\u1ee3ng v\u1eadt d\u1ee5ng r\u01a1i xu\u1ed1ng c&aacute;c k&ecirc;nh nu&ocirc;i t&ocirc;m l&agrave; r\u1ea5t l\u1edbn. \u0110i\u1ec1u n&agrave;y g&acirc;y ra s\u1ef1 &ocirc; nhi\u1ec5m ngu\u1ed3n n\u01b0\u1edbc \u1edf c&aacute;c vu&ocirc;ng t&ocirc;m v&agrave; g&acirc;y nhi\u1ec1u kh&oacute; kh\u0103n cho vi\u1ec7c thu ho\u1ea1ch t&ocirc;m nu&ocirc;i trong \u0111\u1ea7m. M\u1eb7t kh&aacute;c, c&acirc;y \u0110\u01b0\u1edbc c&oacute; \u0111\u1eb7c t&iacute;nh t\u1ea1o ra nhi\u1ec1u th&acirc;n l&agrave;m cho m\u1eadt \u0111\u1ed9 r\u1eebng t\u0103ng l&ecirc;n d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng c\u1ea1nh tranh dinh d\u01b0\u1ee1ng v&agrave; &aacute;nh s&aacute;ng r\u1ea5t quy\u1ebft li\u1ec7t, m\u1ed9t s\u1ed1 c&acirc;y s\u1ebd b\u1ecb ch\u1ebft do qu&aacute; tr&igrave;nh c\u1ea1nh tranh. Nh\u1eefng ng\u01b0\u1eddi n&ocirc;ng d&acirc;n c\u1ea3m th\u1ea5y ph\u1ea3i c&oacute; nh\u1eefng gi\u1ea3i ph&aacute;p \u0111\u1ec3 h\u1ea1n ch\u1ebf s\u1ef1 &ocirc; nhi\u1ec5m ngu\u1ed3n n\u01b0\u1edbc trong \u0111\u1ea7m nu&ocirc;i t&ocirc;m, h\u1ea1n ch\u1ebf s\u1ef1 c\u1ea1nh tranh c\u1ee7a c&acirc;y r\u1eebng v&agrave; c\u1ea7n c&oacute; s\u1ea3n ph\u1ea9m g\u1ed7 c\u1ee7i \u0111\u1ec3 l&agrave;m ch\u1ea5t \u0111\u1ed1t v&agrave; g\u1ed7 ph\u1ee5c v\u1ee5 cho nhu c\u1ea7u sinh ho\u1ea1t v&agrave; \u0111\u1eddi s\u1ed1ng c\u1ee7a b\u1ea3n th&acirc;n h\u1ecd c\u0169ng nh\u01b0 c\u1ed9ng \u0111\u1ed3ng d&acirc;n \u0111\u1ecba ph\u01b0\u01a1ng. <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[18],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8737"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=8737"}],"version-history":[{"count":2,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8737\/revisions"}],"predecessor-version":[{"id":19094,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8737\/revisions\/19094"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=8737"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=8737"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=8737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}