{"id":13752,"date":"2014-10-23T14:18:44","date_gmt":"2014-10-23T07:18:44","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/?p=13752"},"modified":"2014-10-13T14:43:26","modified_gmt":"2014-10-13T07:43:26","slug":"bao-cao-ket-qua-de-tai-nghien-cuu-ky-thuat-trong-rung-tram-den-canarium-tramdenum-dai-yakovl-phuc-vu-muc-tieu-lay-go-va-lay-qua","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/bao-cao-ket-qua-de-tai-nghien-cuu-ky-thuat-trong-rung-tram-den-canarium-tramdenum-dai-yakovl-phuc-vu-muc-tieu-lay-go-va-lay-qua\/","title":{"rendered":"B\u00e1o c\u00e1o k\u1ebft qu\u1ea3 \u0111\u1ec1 t\u00e0i: Nghi\u00ean c\u1ee9u k\u1ef9 thu\u1eadt tr\u1ed3ng r\u1eebng tr\u00e1m \u0111en (Canarium tramdenum Dai&#038; Yakovl) ph\u1ee5c v\u1ee5 m\u1ee5c ti\u00eau l\u1ea5y g\u1ed7 v\u00e0 l\u1ea5y qu\u1ea3"},"content":{"rendered":"<p style=\"text-align: right;\" align=\"center\">Tr\u1ea7n \u0110\u1ee9c M\u1ea1nh<\/p>\n<p style=\"text-align: right;\" align=\"center\"><i>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Trung t\u00e2m \u1ee9ng d\u1ee5ng KHKT l\u00e2m nghi\u1ec7p<\/i><\/p>\n<p><b>I\/ \u0110\u1eb6T V\u1ea4N \u0110\u1ec0<\/b><\/p>\n<p>Tr\u00e1m \u0111en (Canarium <i>tramdenum<\/i> Dai&amp; Yakovl) l\u00e0 c\u00e2y g\u1ed7 l\u1edbn b\u1ea3n \u0111\u1ecba, c\u00f3 chi\u1ec1u cao t\u1eeb 20-30m, \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c \u0111\u1ea1t 50-70cm, th\u00e2n tr\u00f2n th\u1eb3ng, t\u00e1n r\u1ed9ng v\u00e0 l\u00e1 xanh quanh n\u0103m. Tr\u00e1m \u0111en l\u00e0 c\u00e2y \u0111a m\u1ee5c \u0111\u00edch \u0111\u01b0\u1ee3c nh\u00e2n d\u00e2n ta \u01b0a chu\u1ed9ng.<\/p>\n<p>Tr\u00e1m \u0111en \u0111\u01b0\u1ee3c tr\u1ed3ng v\u00e0 ph\u00e2n b\u1ed1 \u1edf v\u00f9ng \u0110\u00f4ng Nam ch\u00e2u \u00c1 g\u1ed3m ph\u00eda nam Trung Qu\u1ed1c (V\u00e2n Nam, Qu\u1ea3ng \u0110\u00f4ng, Qu\u1ea3ng T\u00e2y) Vi\u1ec7t Nam, L\u00e0o, Campuchia, Th\u00e1i Lan. \u1ede Vi\u1ec7t Nam Tr\u00e1m \u0111en ph\u00e2n b\u1ed1 kh\u00e1 r\u1ed9ng r\u00e3i t\u1eeb Cao B\u1eb1ng, B\u1eafc c\u1ea1n, Tuy\u00ean Quang, Ph\u00fa th\u1ecd, H\u00f2a B\u00ecnh, H\u00e0 T\u00e2y,Th\u00e1i Nguy\u00ean, L\u1ea1ng S\u01a1n, B\u1eafc Giang, Qu\u1ea3ng Ninh, Ninh B\u00ecnh, Thanh Ho\u00e1, Ngh\u1ec7 An, Qu\u1ea3ng B\u00ecnh, Qu\u1ea3ng Nam, \u0110\u1eafc L\u1eafc, Kh\u00e1nh Ho\u00e0. Ngo\u00e0i t\u00e1c d\u1ee5ng ph\u00f2ng h\u1ed9, cung c\u1ea5p g\u1ed7 c\u1ee7i, c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a c\u00e2y tr\u00e1m \u0111en nh\u01b0 qu\u1ea3, c\u00e0nh, l\u00e1, v\u1ecf v\u00e0 r\u1ec5 \u0111\u1ec1u c\u00f3 gi\u00e1 tr\u1ecb nh\u01b0 m\u1ed9t ngu\u1ed3n d\u01b0\u1ee3c li\u1ec7u &#8230;Tr\u00e1m \u0111en l\u00e0 c\u00e2y b\u1ea3n \u0111\u1ecba \u0111a m\u1ee5c \u0111\u00edch \u0111\u01b0\u1ee3c tr\u1ed3ng trong nhi\u1ec1u ch\u01b0\u01a1ng tr\u00ecnh v\u00e0 d\u1ef1 \u00e1n tr\u1ed3ng r\u1eebng kh\u00e1c nhau \u1edf c\u00e1c t\u1ec9nh trung du mi\u1ec1n n\u00fai ph\u00eda B\u1eafc v\u00e0 mi\u1ec1n Trung. Tuy nhi\u00ean trong th\u1ef1c t\u1ebf s\u1ea3n xu\u1ea5t c\u00e1c m\u00f4 h\u00ecnh tr\u1ed3ng r\u1eebng t\u1eadp trung ch\u01b0a th\u00e0nh c\u00f4ng do nhi\u1ec1u nguy\u00ean nh\u00e2n v\u00e0 \u0111\u1eb7c bi\u1ec7t ch\u01b0a c\u00f3 nghi\u00ean c\u1ee9u n\u00e0o \u0111i theo h\u01b0\u1edbng tr\u1ed3ng r\u1eebng Tr\u00e1m \u0111en ph\u1ee5c v\u1ee5 m\u1ee5c ti\u00eau l\u1ea5y qu\u1ea3.<\/p>\n<p>Xu\u1ea5t ph\u00e1t t\u1eeb nh\u1eefng th\u1ef1c t\u1ebf tr\u00ean Vi\u1ec7n Khoa h\u1ecdc\u00a0 L\u00e2m nghi\u1ec7p\u00a0 Vi\u1ec7t\u00a0 Nam \u0111\u00e3\u00a0 ph\u00ea\u00a0 duy\u1ec7t\u00a0 \u0111\u1ec1\u00a0 t\u00e0i <i>\u201c Nghi\u00ean c\u1ee9u k\u1ef9 thu\u1eadt tr\u1ed3ng r\u1eebng Tr\u00e1m \u0111en (<\/i>Canarium <i>tramdenum<\/i> Dai&amp; Yakovl<i>) Ph\u1ee5c v\u1ee5 m\u1ee5c ti\u00eau l\u1ea5y g\u1ed7 v\u00e0 l\u1ea5y qu\u1ea3<\/i> \u201d.<\/p>\n<p><a href=\"http:\/\/vafs.gov.vn\/vn\/2014\/10\/bao-cao-ket-qua-de-tai-nghien-cuu-ky-thuat-trong-rung-tram-den-canarium-tramdenum-dai-yakovl-phuc-vu-muc-tieu-lay-go-va-lay-qua\/tram-trang1-2\/\" rel=\"attachment wp-att-13755\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-13755\" alt=\"Tram trang1\" src=\"http:\/\/vafs.gov.vn\/vn\/wp-content\/uploads\/sites\/2\/2014\/10\/Tram-trang11.jpg\" width=\"628\" height=\"442\" srcset=\"https:\/\/vafs.gov.vn\/vn\/wp-content\/uploads\/sites\/2\/2014\/10\/Tram-trang11.jpg 628w, https:\/\/vafs.gov.vn\/vn\/wp-content\/uploads\/sites\/2\/2014\/10\/Tram-trang11-500x351.jpg 500w\" sizes=\"(max-width: 628px) 100vw, 628px\" \/><\/a><\/p>\n<p><b>II\/ N\u1ed8I DUNG V\u00c0 PH\u01af\u01a0NG PH\u00c1P\u00a0 NGHI\u00caN C\u1ee8U<\/b><\/p>\n<p><i>2.1. N\u1ed9i dung nghi\u00ean c\u1ee9u:<\/i><\/p>\n<p><i>2.1.1. Nghi\u00ean c\u1ee9u k\u1ef9 thu\u1eadt gh\u00e9p c\u00e2y Tr\u00e1m \u0111en<\/i><\/p>\n<p>2<i>.1.2. Nghi\u00ean c\u1ee9u k\u1ef9 thu\u1eadt\u00a0 tr\u1ed3ng r\u1eebng Tr\u00e1m \u0111en<\/i><\/p>\n<p><i>2.2. Ph\u01b0\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u:<\/i><\/p>\n<p>&#8211; K\u1ebf th\u1eeba c\u00e1c t\u00e0i li\u1ec7u v\u00e0 th\u00f4ng tin \u0111\u00e3 c\u00f3 tr\u00ean c\u01a1 s\u1edf \u0111\u00f3 ch\u1ecdn \u0111\u1ecba \u0111i\u1ec3m \u0111\u00e1nh gi\u00e1 1 s\u1ed1 m\u00f4 h\u00ecnh tr\u1ed3ng r\u1eebng Tr\u00e1m \u0111en.<\/p>\n<p>&#8211; S\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p l\u1eadp \u00d4TC theo ph\u01b0\u01a1ng ph\u00e1p ng\u1eabu nhi\u00ean t\u1ea1m th\u1eddi ,di\u1ec7n t\u00edch \u00d4TC l\u00e0 500 m2, k\u1ebft h\u1ee3p ph\u1ecfng v\u1ea5n \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 c\u00e1c ch\u1ec9 ti\u00eau v\u1ec1 sinh tr\u01b0\u1edfng, ch\u1ea5t l\u01b0\u1ee3ng r\u1eebng tr\u1ed3ng Tr\u00e1m \u0111en \u0111\u00e3 c\u00f3 trong s\u1ea3n xu\u1ea5t.<\/p>\n<p>&#8211; C\u0103n c\u1ee9 v\u00e0o qui ph\u1ea1m QPN 15 \u2013 93 v\u1ec1 k\u1ef9 thu\u1eadt x\u00e2y d\u1ef1ng r\u1eebng gi\u1ed1ng v\u00e0 v\u01b0\u1eddn gi\u1ed1ng ban h\u00ecnh ng\u00e0y 02\/11\/1993 c\u1ee7a B\u1ed9 L\u00e2m nghi\u1ec7p nay l\u00e0 B\u1ed9 N\u00f4ng nghi\u1ec7p v\u00e0 ph\u00e1t tri\u1ec3n n\u00f4ng th\u00f4n \u0111\u1ec3 ch\u1ecdn c\u00e2y tr\u1ed9i.<\/p>\n<p>&#8211; S\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p b\u1ed1 tr\u00ed th\u00ed nghi\u1ec7m ng\u1eabu nhi\u00ean \u0111\u1ea7y \u0111\u1ee7 theo kh\u1ed1i 3 l\u1ea7n l\u1eb7p cho x\u00e2y d\u1ef1ng m\u00f4 h\u00ecnh.<\/p>\n<p><span style=\"text-decoration: underline;\">C\u00f4ng th\u1ee9c 1<\/span>: <i>Tr\u00e1m + Keo lai<\/i>: Ph\u00e1t \u0111en th\u1ef1c b\u00ec, d\u1ecdn s\u1ea1ch sau \u0111\u00f3 thi\u1ebft k\u1ebf tr\u1ed3ng r\u1eebng. M\u1eadt \u0111\u1ed9 tr\u1ed3ng 1.600 c\u00e2y\/ha (3 x 2m), trong \u0111\u00f3 Tr\u00e1m \u0111en 800 c\u00e2y\/ha, Keo\u00a0 lai 800 c\u00e2y\/ha. Keo tr\u1ed3ng tr\u01b0\u1edbc 6 th\u00e1ng (Keo tr\u1ed3ng v\u1ee5 Thu n\u0103m tr\u01b0\u1edbc, Tr\u00e1m tr\u1ed3ng v\u1ee5 Xu\u00e2n n\u0103m sau) Tr\u00e1m v\u00e0 Keo tr\u1ed3ng h\u1ed7n giao theo h\u00e0ng.<\/p>\n<p><span style=\"text-decoration: underline;\">C\u00f4ng th\u1ee9c 2<\/span>: <i>Tr\u00e1m + c\u00e2y C\u1ed1t Kh\u00ed<\/i>: Th\u1ef1c b\u00ec \u0111\u01b0\u1ee3c ph\u00e1t tr\u1eafng, d\u1ecdn s\u1ea1ch, sau \u0111\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf tr\u1ed3ng r\u1eebng. M\u1eadt \u0111\u1ed9 1.600c\u00e2y\/ha (3 x 2m), \u1edf gi\u1eefa hai h\u00e0ng Tr\u00e1m gieo m\u1ed9t h\u00e0ng C\u1ed1t kh\u00ed.<\/p>\n<p><span style=\"text-decoration: underline;\">C\u00f4ng th\u1ee9c 3<\/span>: T<i>r\u00e1m \u0111en + D\u1ebb cau<\/i>: Th\u1ef1c b\u00ec ph\u00e1t tr\u1eafng, d\u1ecdn s\u1ea1ch sau \u0111\u00f3 thi\u1ebft k\u1ebf tr\u1ed3ng r\u1eebng. M\u1eadt \u0111\u1ed9 1600 c\u00e2y\/ha (3m x 2m) Tr\u00e1m v\u00e0 D\u1ebb cau tr\u1ed3ng c\u00f9ng th\u1eddi \u0111i\u1ec3m, h\u1ed7n giao theo h\u00e0ng<\/p>\n<p><span style=\"text-decoration: underline;\">C\u00f4ng th\u1ee9c 4<\/span>: (<i>C\u00f4ng th\u1ee9c \u0111\u1ed1i ch\u1ee9ng so s\u00e1nh v\u1edbi c\u00e1c th\u00ed nghi\u1ec7m tr\u00ean<\/i>): Ph\u00e1t tr\u1eafng th\u1ef1c b\u00ec, d\u1ecdn s\u1ea1ch sau \u0111\u00f3 thi\u1ebft k\u1ebf tr\u1ed3ng r\u1eebng. M\u1eadt \u0111\u1ed9 1.600c\u00e2y\/ha (3 x 2 m), kh\u00f4ng tr\u1ed3ng c\u00e2y che ph\u1ee7 \u0111\u1ea5t.<\/p>\n<p>&#8211;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u1ee8ng d\u1ee5ng c\u00e1c ph\u1ea7n m\u1ec1m EXELL, SPSS \u0111\u1ec3 s\u1eed l\u00fd v\u00e0 ph\u00e2n t\u00edch s\u1ed1 li\u1ec7u.<\/p>\n<p><b>III\/ K\u1ebeT QU\u1ea2 V\u00c0 TH\u1ea2O LU\u1eacN<\/b><\/p>\n<p><i>3.1. \u0110i\u1ec1u tra tuy\u1ec3n ch\u1ecdn c\u00e2y m\u1eb9<\/i><\/p>\n<p>Hi\u1ec7n nay ch\u01b0a c\u00f3 t\u00e0i li\u1ec7u n\u00e0o n\u00f3i r\u1eb1ng Tr\u00e1m \u0111en c\u00f3 c\u00e2y c\u00e1i c\u00e2y \u0111\u1ef1c, nh\u01b0ng qua \u0111i\u1ec1u tra th\u1ef1c t\u1ebf t\u1ea1i m\u1ed9t s\u1ed1 h\u1ed9 d\u00e2n tr\u1ed3ng c\u00e2y Tr\u00e1m \u0111en t\u1ea1i\u00a0 H\u00f2a B\u00ecnh, H\u00e0 T\u00e2y, Ninh B\u00ecnh, Th\u00e1i Nguy\u00ean, B\u1eafc Giang cho th\u1ea5y t\u1ef7 l\u1ec7 c\u00e2y ra hoa k\u1ebft qu\u1ea3 ch\u1ec9 \u0111\u1ea1t 50 \u2013 60 %. Do v\u1eady, trong qu\u00e1 tr\u00ecnh tuy\u1ec3n ch\u1ecdn c\u00e2y m\u1eb9 l\u1ea5y gi\u1ed1ng (ch\u1ee7 y\u1ebfu l\u00e0 l\u1ea5y c\u00e0nh gh\u00e9p) \u0111\u1ec1 t\u00e0i ph\u1ea3i x\u00e2y d\u1ef1ng nh\u1eefng ti\u00eau ch\u00ed h\u1ebft s\u1ee9c ch\u1eb7t ch\u1ebd. Ngo\u00e0i c\u00e1c ti\u00eau chu\u1ea9n ch\u1ecdn c\u00e2y m\u1eb9 ph\u1ee5c v\u1ee5 cho tr\u1ed3ng r\u1eebng l\u1ea5y qu\u1ea3 \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh trong quy ph\u1ea1m QPN 15 -93\u00a0 K\u1ef9 thu\u1eadt x\u00e2y d\u1ef1ng r\u1eebng gi\u1ed1ng v\u00e0 v\u01b0\u1eddn gi\u1ed1ng ban h\u00e0nh ng\u00e0y 02\/11\/1993 c\u1ee7a B\u1ed9 L\u00e2m nghi\u1ec7p nay l\u00e0 B\u1ed9 N\u00f4ng nghi\u1ec7p v\u00e0 ph\u00e1t tri\u1ec3n N\u00f4ng th\u00f4n, \u0111\u1ec1 t\u00e0i c\u00f3 quy \u0111\u1ecbnh th\u00eam 2 ti\u00eau chu\u1ea9n:<\/p>\n<p>&#8211; C\u00e2y m\u1eb9 ph\u1ea3i c\u00f3 qu\u1ea3 \u00edt nh\u1ea5t 3 n\u0103m li\u00ean t\u1ee5c (g\u1ea7n v\u1edbi th\u1eddi \u0111i\u1ec3m \u0111i\u1ec1u tra).<\/p>\n<p>&#8211; Ch\u1ea5t l\u01b0\u1ee3ng qu\u1ea3 ngon, m\u1eabu m\u00e3 \u0111\u1eb9p.<\/p>\n<p>V\u1edbi ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u tra k\u1ebft h\u1ee3p ph\u1ecfng v\u1ea5n ch\u1ee7 r\u1eebng, \u0111\u1ec1 t\u00e0i \u0111\u00e3 ch\u1ecdn \u0111\u01b0\u1ee3c 50 c\u00e2y d\u1ef1 tuy\u1ec3n ch\u1ee7 y\u1ebfu l\u00e0 \u1edf H\u00f2a B\u00ecnh v\u00e0 m\u1ed9t s\u1ed1 v\u00f9ng l\u00e2n c\u1eadn m\u00e0 ng\u01b0\u1eddi d\u00e2n c\u00f3 kinh doanh c\u00e2y Tr\u00e1m \u0111en \u0111\u1ec3 l\u1ea5y qu\u1ea3 nh\u01b0 C\u00fac Ph\u01b0\u01a1ng &#8211; Ninh B\u00ecnh, Ba V\u00ec &#8211; H\u00e0 T\u00e2y, Ph\u00fa B\u00ecnh \u2013 Th\u00e1i Nguy\u00ean v\u00e0 Hi\u1ec7p H\u00f2a \u2013 B\u1eafc Giang. Sau \u0111\u00f3 \u0111\u1ec1 t\u00e0i \u0111\u00e3 ti\u1ebfp t\u1ee5c theo d\u00f5i th\u00eam 2 n\u0103m v\u1edbi c\u00e1c ch\u1ec9 ti\u00eau \u0111\u00e3 ghi trong quy ph\u1ea1m k\u1ebft h\u1ee3p v\u1edbi c\u00e1c ch\u1ec9 ti\u00eau c\u1ee7a \u0111\u1ec1 t\u00e0i \u0111\u00e3 \u0111\u01b0a ra. K\u1ebft qu\u1ea3 \u0111\u1ec1 t\u00e0i \u0111\u00e3 ch\u1ecdn \u0111\u01b0\u1ee3c 10 c\u00e2y m\u1eb9 \u0111\u1ec3 l\u1ea5y v\u1eadt li\u1ec7u ph\u1ee5c v\u1ee5 nh\u00e2n gi\u1ed1ng sinh d\u01b0\u1ee1ng.\u00a0 \u0110\u1ec1 t\u00e0i \u0111\u00e3 l\u1eadp l\u00fd l\u1ecbch cho c\u00e1c c\u00e2y m\u1eb9, ti\u1ebfn h\u00e0nh h\u1ee3p \u0111\u1ed3ng v\u1edbi c\u00e1c ch\u1ee7 h\u1ed9 \u0111\u1ec3 b\u1ea3o v\u1ec7 v\u00e0 l\u1ea5y v\u1eadt li\u1ec7u \u0111\u1ec3 gh\u00e9p.<\/p>\n<p><i>3.2. K\u1ebft qu\u1ea3 th\u1eed\u00a0 nghi\u1ec7m v\u1ec1 nh\u00e2n gi\u1ed1ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p<\/i><\/p>\n<p>K\u1ebft qu\u1ea3 kh\u1ea3o s\u00e1t v\u00e0 th\u00ed nghi\u1ec7m th\u0103m d\u00f2 \u0111\u00e3 cho th\u1ea5y \u0111\u1ed1i v\u1edbi c\u00e2y Tr\u00e1m \u0111en th\u00ec 2 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ef7 l\u1ec7 s\u1ed1ng c\u00e2y gh\u00e9p l\u00e0 ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p v\u00e0 th\u1eddi v\u1ee5 gh\u00e9p. T\u1eeb \u0111\u00f3 \u0111\u1ec1 t\u00e0i \u0111\u00e3 l\u1ef1a ch\u1ecdn 2 n\u1ed9i dung n\u00e0y \u0111\u1ec3 b\u1ed1 tr\u00ed th\u00ed nghi\u1ec7m ch\u00ednh th\u1ee9c. C\u00e1c th\u00ed nghi\u1ec7m \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh t\u1eeb n\u0103m 2003 &#8211; 2005. T\u1eeb k\u1ebft nghi\u00ean c\u1ee9u v\u1ec1 nh\u00e2n gi\u1ed1ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p \u0111\u1ec1 t\u00e0i \u0111\u00e3 \u0111i \u0111\u1ebfn k\u1ebft lu\u1eadn sau:<\/p>\n<p><i>* V\u1ec1 ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p<\/i>: Ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p \u00e1p c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng cao h\u01a1n ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p n\u00eam \u0111\u1ec9nh sinh tr\u01b0\u1edfng, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong v\u1ee5 xu\u00e2n th\u00ec ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p \u00e1p \u0111\u1ea1t t\u1ef7 l\u1ec7 s\u1ed1ng 54%, ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p \u00e1p b\u00ean th\u00e2n ch\u1ec9 \u0111\u1ea1t 50.2%.<\/p>\n<p><i>* V\u1ec1 th\u1eddi v\u1ee5 gh\u00e9p<\/i>: C\u00f9ng ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p nh\u01b0 nhau nh\u01b0ng v\u1ee5 xu\u00e2n c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng cao nh\u1ea5t. B\u00ecnh qu\u00e2n \u0111\u1ea1t 52% \u0111\u1eb7c bi\u1ec7t c\u00f3 n\u0103m \u0111\u1ea1t 54%. Ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p n\u00eam \u0111\u1ea1t t\u1ef7 l\u1ec7 trung b\u00ecnh l\u00e0 50.2%, ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p \u00e1p b\u00ean th\u00e2n \u0111\u1ea1t trung b\u00ecnh l\u00e0 54.7%. Sau \u0111\u00f3 \u0111\u1ebfn v\u1ee5 thu c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng c\u0169ng t\u01b0\u01a1ng \u0111\u1ed1i cao (\u1edf c\u1ea3 2 ph\u01b0\u01a1ng ph\u00e1p trung b\u00ecnh 3 n\u0103m \u0111\u1ec1u \u0111\u1ea1t 50% v\u00e0 54%).\u00a0 Ri\u00eang v\u1ee5 h\u00e8 t\u1ef7 l\u1ec7 s\u1ed1ng r\u1ea5t th\u1ea5p trung b\u00ecnh 3 n\u0103m ch\u1ec9 \u0111\u1ea1t d\u01b0\u1edbi 10%.<\/p>\n<p><i>3.3. Nghi\u00ean c\u1ee9u k\u1ef9 thu\u1eadt tr\u1ed3ng r\u1eebng Tr\u00e1m \u0111en v\u1edbi m\u1ee5c \u0111\u00edch l\u1ea5y g\u1ed7: <\/i><\/p>\n<ul>\n<li><i>T\u00ecnh h\u00ecnh sinh tr\u01b0\u1edfng v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u cao:<\/i><\/li>\n<\/ul>\n<p>&#8211; H\u1ea1t gi\u1ed1ng \u0111\u01b0\u1ee3c thu gom t\u1eeb c\u00e1c c\u00e2y tr\u1ed9i v\u00e0 gieo \u01b0\u01a1m t\u1ea1i v\u01b0\u1eddn \u01b0\u01a1m c\u1ee7a Tr\u1ea1m th\u1ef1c nghi\u1ec7m Khoa h\u1ecdc k\u1ef9 thu\u1eadt l\u00e2m nghi\u1ec7p T\u00e2n l\u1ea1c t\u1eeb th\u00e1ng 4 n\u0103m 2004. Sau 12 th\u00e1ng nu\u00f4i d\u01b0\u1ee1ng trong v\u01b0\u1eddn \u01b0\u01a1m, c\u00e2y con xu\u1ea5t v\u01b0\u1eddn c\u00f3 \u0111\u01b0\u1eddng k\u00ednh trung b\u00ecnh l\u00e0 0,55 cm v\u00e0 chi\u1ec1u cao trung b\u00ecnh 0,7 m.<\/p>\n<p>S\u1ed1 li\u1ec7u \u0111o \u0111\u1ebfm sinh tr\u01b0\u1edfng \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh 1 n\u0103m 1 l\u1ea7n v\u00e0o th\u1eddi \u0111i\u1ec3m cu\u1ed1i n\u0103m, ch\u1ec9 ti\u00eau \u0111o \u0111\u1ebfm g\u1ed3m: T\u1ef7 l\u1ec7 s\u1ed1ng, chi\u1ec1u cao v\u00fat ng\u1ecdn,\u0111\u01b0\u1eddng k\u00ednh g\u1ed1c v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u00e2y tr\u1ed3ng. K\u1ebft qu\u1ea3 t\u00ednh to\u00e1n \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p trong bi\u1ec3u 01 d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n<p align=\"center\"><i><span style=\"text-decoration: underline;\">Bi\u1ec3u 01:<\/span><\/i><i>\u00a0 Sinh tr\u00ad\u01b0\u1edfng Tr\u00e1m \u0111en trong c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m<\/i><i><\/i><\/p>\n<table width=\"632\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td rowspan=\"2\" valign=\"top\" width=\"137\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 C.th\u1ee9cC.ti\u00eauL\u1ea7n \u0111o<\/td>\n<td rowspan=\"2\" width=\"61\">T\u1ef7 s\u1ed1ng (%)<\/td>\n<td colspan=\"2\" width=\"114\">\n<p align=\"center\">Tr\u00e1m + Keo<\/p>\n<\/td>\n<td colspan=\"2\" width=\"118\">\n<p align=\"center\">Tr\u00e1m + C\u1ed1t Kh\u00ed<\/p>\n<\/td>\n<td colspan=\"2\" width=\"104\">\n<p align=\"center\">Tr\u00e1m + D\u1ebb cau<\/p>\n<\/td>\n<td colspan=\"2\" width=\"98\">\n<p align=\"center\">\u0110\u1ed1i ch\u1ee9ng<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"57\">\n<p align=\"center\"><i>(cm)<\/i><\/p>\n<\/td>\n<td valign=\"top\" width=\"57\">\n<p align=\"center\"><i>(cm)<\/i><\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\"><i>(cm)<\/i><\/p>\n<\/td>\n<td valign=\"top\" width=\"62\">\n<p align=\"center\"><i>(m)<\/i><\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\"><i>(cm)<\/i><\/p>\n<\/td>\n<td valign=\"top\" width=\"48\">\n<p align=\"center\"><i><\/i><i>(cm)<\/i><\/p>\n<\/td>\n<td valign=\"top\" width=\"48\">\n<p align=\"center\"><i>(cm)<\/i><\/p>\n<\/td>\n<td valign=\"top\" width=\"50\">\n<p align=\"center\"><i>(m)<\/i><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"137\">\n<p align=\"center\">C\u00e2y con khi tr\u1ed3ng<\/p>\n<\/td>\n<td valign=\"top\" width=\"61\"><\/td>\n<td valign=\"top\" width=\"57\">\n<p align=\"center\">0,55<\/p>\n<\/td>\n<td valign=\"top\" width=\"57\">\n<p align=\"center\">0,70<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">0,55<\/p>\n<\/td>\n<td valign=\"top\" width=\"62\">\n<p align=\"center\">0,70<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">0,55<\/p>\n<\/td>\n<td valign=\"top\" width=\"48\">\n<p align=\"center\">0,70<\/p>\n<\/td>\n<td valign=\"top\" width=\"48\">\n<p align=\"center\">0,55<\/p>\n<\/td>\n<td valign=\"top\" width=\"50\">\n<p align=\"center\">0,70<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"137\">\n<p align=\"center\">Sau 12 th\u00e1ng<\/p>\n<\/td>\n<td valign=\"top\" width=\"61\">\n<p align=\"center\">92<\/p>\n<\/td>\n<td valign=\"top\" width=\"57\">\n<p align=\"center\">1,94<\/p>\n<\/td>\n<td valign=\"top\" width=\"57\">\n<p align=\"center\">1,51<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">2,07<\/p>\n<\/td>\n<td valign=\"top\" width=\"62\">\n<p align=\"center\">1,44<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">1,86<\/p>\n<\/td>\n<td valign=\"top\" width=\"48\">\n<p align=\"center\">1,41<\/p>\n<\/td>\n<td valign=\"top\" width=\"48\">\n<p align=\"center\">1,89<\/p>\n<\/td>\n<td valign=\"top\" width=\"50\">\n<p align=\"center\">1,38<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"137\">\n<p align=\"center\">H\u1ec7 s\u1ed1 B\u0110 (S%)<\/p>\n<\/td>\n<td valign=\"top\" width=\"61\"><\/td>\n<td valign=\"top\" width=\"57\">\n<p align=\"center\">17,4<\/p>\n<\/td>\n<td valign=\"top\" width=\"57\">\n<p align=\"center\">18,6<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">12,1<\/p>\n<\/td>\n<td valign=\"top\" width=\"62\">\n<p align=\"center\">16,3<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">19,8<\/p>\n<\/td>\n<td valign=\"top\" width=\"48\">\n<p align=\"center\">20,4<\/p>\n<\/td>\n<td valign=\"top\" width=\"48\">\n<p align=\"center\">21,6<\/p>\n<\/td>\n<td valign=\"top\" width=\"50\">\n<p align=\"center\">22<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"137\">\n<p align=\"center\">Sau 24 th\u00e1ng<\/p>\n<\/td>\n<td valign=\"top\" width=\"61\">\n<p align=\"center\">90<\/p>\n<\/td>\n<td valign=\"top\" width=\"57\">\n<p align=\"center\">3,71<\/p>\n<\/td>\n<td valign=\"top\" width=\"57\">\n<p align=\"center\">2,54<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">4,19<\/p>\n<\/td>\n<td valign=\"top\" width=\"62\">\n<p align=\"center\">2,45<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">3,12<\/p>\n<\/td>\n<td valign=\"top\" width=\"48\">\n<p align=\"center\">2,20<\/p>\n<\/td>\n<td valign=\"top\" width=\"48\">\n<p align=\"center\">3,25<\/p>\n<\/td>\n<td valign=\"top\" width=\"50\">\n<p align=\"center\">2,12<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"137\">\n<p align=\"center\">H\u1ec7 s\u1ed1 B\u0110 (S%)<\/p>\n<\/td>\n<td valign=\"top\" width=\"61\"><\/td>\n<td valign=\"top\" width=\"57\">\n<p align=\"center\">18,7<\/p>\n<\/td>\n<td valign=\"top\" width=\"57\">\n<p align=\"center\">19,4<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">16<\/p>\n<\/td>\n<td valign=\"top\" width=\"62\">\n<p align=\"center\">18<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">25,5<\/p>\n<\/td>\n<td valign=\"top\" width=\"48\">\n<p align=\"center\">23,1<\/p>\n<\/td>\n<td valign=\"top\" width=\"48\">\n<p align=\"center\">27,3<\/p>\n<\/td>\n<td valign=\"top\" width=\"50\">\n<p align=\"center\">23,5<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"137\">\n<p align=\"center\">Sau 36 th\u00e1ng<\/p>\n<\/td>\n<td valign=\"top\" width=\"61\">\n<p align=\"center\">90<\/p>\n<\/td>\n<td valign=\"top\" width=\"57\">\n<p align=\"center\">5,53<\/p>\n<\/td>\n<td valign=\"top\" width=\"57\">\n<p align=\"center\">3,46<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">5,58<\/p>\n<\/td>\n<td valign=\"top\" width=\"62\">\n<p align=\"center\">3,00<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">4,52<\/p>\n<\/td>\n<td valign=\"top\" width=\"48\">\n<p align=\"center\">2,47<\/p>\n<\/td>\n<td valign=\"top\" width=\"48\">\n<p align=\"center\">4,47<\/p>\n<\/td>\n<td valign=\"top\" width=\"50\">\n<p align=\"center\">2,58<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"137\">\n<p align=\"center\">H\u1ec7 s\u1ed1 B\u0110 (S%)<\/p>\n<\/td>\n<td valign=\"top\" width=\"61\"><\/td>\n<td valign=\"top\" width=\"57\">\n<p align=\"center\">20,1<\/p>\n<\/td>\n<td valign=\"top\" width=\"57\">\n<p align=\"center\">22<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">20<\/p>\n<\/td>\n<td valign=\"top\" width=\"62\">\n<p align=\"center\">23,2<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">30,6<\/p>\n<\/td>\n<td valign=\"top\" width=\"48\">\n<p align=\"center\">28,2<\/p>\n<\/td>\n<td valign=\"top\" width=\"48\">\n<p align=\"center\">27,5<\/p>\n<\/td>\n<td valign=\"top\" width=\"50\">\n<p align=\"center\">26,7<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Qua bi\u1ec3u tr\u00ean ch\u00fang ta r\u00fat ra m\u1ed9t s\u1ed1 nh\u1eadn x\u00e9t sau \u0111\u00e2y:<\/p>\n<p>&#8211; Sau 1 n\u0103m th\u00ec t\u0103ng tr\u01b0\u1edfng v\u1ec1\u00a0 \u0111\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u cao gi\u1eefa c\u00e1c c\u00f4ng th\u1ee9c ch\u01b0a th\u1ea5y c\u00f3 s\u1ef1 kh\u00e1c nhau r\u00f5 r\u1ec7t.<\/p>\n<p>&#8211; C\u00f4ng th\u1ee9c tr\u1ed3ng c\u00f3 c\u1ed1t kh\u00ed v\u00e0 Keo che ph\u1ee7 c\u00f3 tr\u1ecb s\u1ed1 b\u00ecnh qu\u00e2n cao h\u01a1n, \u0111\u1ed9 bi\u1ebfn \u0111\u1ed9ng (S%) b\u00e9 h\u01a1n v\u00e0 c\u00f3 chi\u1ec1u h\u01b0\u1edbng t\u0103ng ch\u1eadm theo tu\u1ed5i so v\u1edbi c\u00f4ng th\u1ee9c Tr\u00e1m + D\u1ebb cau v\u00e0 c\u00f4ng th\u1ee9c \u0111\u1ed1i ch\u1ee9ng.<\/p>\n<p>&#8211; C\u00f4ng th\u1ee9c \u0111\u1ed1i ch\u1ee9ng v\u00e0 c\u00f4ng th\u1ee9c Tr\u00e1m + D\u1ebb cau c\u00f3 tr\u1ecb s\u1ed1 b\u00ecnh qu\u00e2n th\u1ea5p h\u01a1n, \u0111\u1ed9 bi\u1ebfn \u0111\u1ed9ng (S%) cao h\u01a1n v\u00e0 c\u00f3 chi\u1ec1u h\u01b0\u1edbng t\u0103ng nhanh theo tu\u1ed5i so v\u1edbi c\u00f4ng th\u1ee9c Tr\u00e1m + C\u1ed1t Kh\u00ed v\u00e0 Tr\u00e1m + Keo. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y\u00a0 s\u1ef1 sinh tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u gi\u1eefa c\u00e1c c\u00e1 th\u1ec3 t\u1ea1o n\u00ean s\u1ef1 ph\u00e2n h\u00f3a m\u1ea1nh c\u1ee7a r\u1eebng tr\u1ed3ng.<\/p>\n<p>&#8211; Ri\u00eang c\u00f4ng th\u1ee9c tr\u1ed3ng Tr\u00e1m c\u00f3 c\u00e2y keo ph\u00f9 tr\u1ee3 l\u00e0 bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o th\u00e0nh r\u1eebng tr\u00e1m c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng cao, tuy nhi\u00ean c\u00f4ng th\u1ee9c n\u00e0y c\u1ea7n l\u01b0u \u00fd \u0111i\u1ec1u ch\u1ec9nh t\u00e0n che c\u1ee7a keo \u0111\u00fang k\u1ef9 thu\u1eadt v\u00e0 ph\u1ea3i ti\u1ebfn h\u00e0nh t\u1eeb n\u0103m th\u1ee9\u00a0 3 tr\u1edf \u0111i, n\u1ebfu kh\u00f4ng keo s\u1ebd\u00a0 l\u1ea5n \u00e1t c\u00e2y Tr\u00e1m.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><i>\u00a0T\u0103ng tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u cao c\u1ee7a tr\u00e1m \u0111en<\/i><\/li>\n<\/ul>\n<p align=\"center\"><i><span style=\"text-decoration: underline;\">Bi\u1ec3u 02:<\/span><\/i>\u00a0\u00a0 T\u0103ng tr\u01b0\u1edfng c\u1ee7a Tr\u00e1m \u0111en trong c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m<\/p>\n<table width=\"624\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td rowspan=\"2\" valign=\"top\" width=\"131\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 C\u00f4ng th\u1ee9cC.ti\u00eauTu\u1ed5i<\/td>\n<td colspan=\"2\" width=\"121\">\n<p align=\"center\">Tr\u00e1m + Keo<\/p>\n<\/td>\n<td colspan=\"2\" width=\"134\">\n<p align=\"center\">Tr\u00e1m + C\u1ed1t Kh\u00ed<\/p>\n<\/td>\n<td colspan=\"2\" width=\"122\">\n<p align=\"center\">Tr\u00e1m + D\u1ebb<\/p>\n<\/td>\n<td colspan=\"2\" width=\"116\">\n<p align=\"center\">\u0110\u1ed1i ch\u1ee9ng<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"67\">\n<p align=\"center\">ZDoo<\/p>\n<p align=\"center\">(cm)<\/p>\n<\/td>\n<td valign=\"top\" width=\"53\">\n<p align=\"center\">ZH<\/p>\n<p align=\"center\">(m)<\/p>\n<\/td>\n<td valign=\"top\" width=\"65\">\n<p align=\"center\">ZDoo<\/p>\n<p align=\"center\">(cm)<\/p>\n<\/td>\n<td valign=\"top\" width=\"69\">\n<p align=\"center\">ZH<\/p>\n<p align=\"center\">(m)<\/p>\n<\/td>\n<td valign=\"top\" width=\"65\">\n<p align=\"center\">ZDoo<\/p>\n<p align=\"center\">(cm)<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">ZH<\/p>\n<p align=\"center\">(m)<\/p>\n<\/td>\n<td valign=\"top\" width=\"63\">\n<p align=\"center\">ZDoo<\/p>\n<p align=\"center\">(cm)<\/p>\n<\/td>\n<td valign=\"top\" width=\"53\">\n<p align=\"center\">ZH<\/p>\n<p align=\"center\">(m)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"131\">N\u0103m th\u1ee9 nh\u1ea5t<\/td>\n<td valign=\"top\" width=\"67\">\n<p align=\"center\">1,39<\/p>\n<\/td>\n<td valign=\"top\" width=\"53\">\n<p align=\"center\">0,81<\/p>\n<\/td>\n<td valign=\"top\" width=\"65\">\n<p align=\"center\">1,52<\/p>\n<\/td>\n<td valign=\"top\" width=\"69\">\n<p align=\"center\">0,74<\/p>\n<\/td>\n<td valign=\"top\" width=\"65\">\n<p align=\"center\">1,31<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">0,71<\/p>\n<\/td>\n<td valign=\"top\" width=\"63\">\n<p align=\"center\">1,30<\/p>\n<\/td>\n<td valign=\"top\" width=\"53\">\n<p align=\"center\">0,68<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"131\">N\u0103m th\u1ee9 hai<\/td>\n<td valign=\"top\" width=\"67\">\n<p align=\"center\">1,77<\/p>\n<\/td>\n<td valign=\"top\" width=\"53\">\n<p align=\"center\">1,03<\/p>\n<\/td>\n<td valign=\"top\" width=\"65\">\n<p align=\"center\">2,12<\/p>\n<\/td>\n<td valign=\"top\" width=\"69\">\n<p align=\"center\">1,06<\/p>\n<\/td>\n<td valign=\"top\" width=\"65\">\n<p align=\"center\">1,66<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">0,89<\/p>\n<\/td>\n<td valign=\"top\" width=\"63\">\n<p align=\"center\">1,66<\/p>\n<\/td>\n<td valign=\"top\" width=\"53\">\n<p align=\"center\">0,94<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"131\">N\u0103m th\u1ee9 ba<\/td>\n<td valign=\"top\" width=\"67\">\n<p align=\"center\">1,82<\/p>\n<\/td>\n<td valign=\"top\" width=\"53\">\n<p align=\"center\">0,92<\/p>\n<\/td>\n<td valign=\"top\" width=\"65\">\n<p align=\"center\">1,39<\/p>\n<\/td>\n<td valign=\"top\" width=\"69\">\n<p align=\"center\">0,5<\/p>\n<\/td>\n<td valign=\"top\" width=\"65\">\n<p align=\"center\">1,18<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">0,4<\/p>\n<\/td>\n<td valign=\"top\" width=\"63\">\n<p align=\"center\">1,17<\/p>\n<\/td>\n<td valign=\"top\" width=\"53\">\n<p align=\"center\">0,36<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"131\">B\u00ecnh qu\u00e2n<\/td>\n<td width=\"67\">\n<p align=\"center\">1,66<\/p>\n<\/td>\n<td width=\"53\">\n<p align=\"center\">0,92<\/p>\n<\/td>\n<td width=\"65\">\n<p align=\"center\">1,68<\/p>\n<\/td>\n<td width=\"69\">\n<p align=\"center\">0,77<\/p>\n<\/td>\n<td valign=\"top\" width=\"65\">\n<p align=\"center\">1,38<\/p>\n<\/td>\n<td valign=\"top\" width=\"56\">\n<p align=\"center\">0,67<\/p>\n<\/td>\n<td width=\"63\">\n<p align=\"center\">1,39<\/p>\n<\/td>\n<td width=\"53\">\n<p align=\"center\">0,66<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Qua bi\u1ec3u tr\u00ean \u0111\u00e2y cho th\u1ea5y:<\/p>\n<p>&#8211; Sau khi tr\u1ed3ng 1 n\u0103m th\u00ec th\u1ef1c b\u00ec che ph\u1ee7 ch\u01b0a \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a tr\u00e1m \u0111en l\u01b0\u1ee3ng t\u0103ng tr\u01b0\u1edfng b\u00ecnh qu\u00e2n n\u0103m trong c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m ch\u01b0a c\u00f3 s\u1ef1 sai kh\u00e1c<\/p>\n<p>&#8211; T\u1eeb n\u0103m th\u1ee9 2 tr\u1edf \u0111i b\u1eaft \u0111\u1ea7u c\u00f3 s\u1ef1 ph\u00e2n ho\u00e1 . Trong 3 c\u00f4ng th\u1ee9c th\u00ec c\u00f4ng th\u1ee9c tr\u1ed3ng tr\u00e1m + c\u1ed1t kh\u00ed v\u00e0 c\u00f4ng th\u1ee9c tr\u00e1m + Keo c\u00f3 t\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng c\u1ea3 chi\u1ec1u cao v\u00e0 \u0111\u01b0\u1eddng k\u00ednh \u0111\u1ec1u h\u01a1n c\u1ea3 v\u00e0 \u0111\u1ebfn n\u0103m th\u1ee9 ba th\u00ec l\u01b0\u1ee3ng t\u0103ng tr\u01b0\u1edfng cao h\u01a1n h\u1eb3n c\u00e1c c\u00f4ng th\u1ee9c kh\u00e1c. C\u00f4ng th\u1ee9c tr\u1ed3ng h\u1ed7n giao Tr\u00e1m \u0111en + Keo lai \u0111\u1ebfn n\u0103m th\u1ee9 3 l\u01b0\u1ee3ng t\u0103ng tr\u01b0\u1edfng h\u00e0ng n\u0103m v\u1ec1 chi\u1ec1u cao tr\u1ed9i h\u01a1n h\u1eb3n. Ri\u00eang c\u00f4ng th\u1ee9c Tr\u00e1m + D\u1ebb cau v\u00e0 c\u00f4ng th\u1ee9c \u0111\u1ed1i ch\u1ee9ng l\u01b0\u1ee3ng t\u0103ng tr\u01b0\u1edfng b\u00ecnh qu\u00e2n n\u0103m th\u1ea5p h\u01a1n h\u1eb3n.<\/p>\n<p><i>3.4. K\u1ebft qu\u1ea3 x\u00e2y d\u1ef1ng m\u00f4 h\u00ecnh tr\u1ed3ng r\u1eebng Tr\u00e1m \u0111en ph\u1ee5c v\u1ee5 m\u1ee5c ti\u00eau l\u1ea5y qu\u1ea3 (tr\u1ed3ng c\u00e2y gh\u00e9p):<\/i><\/p>\n<p>Sau khi nghi\u00ean c\u1ee9u th\u00e0nh c\u00f4ng vi\u1ec7c t\u1ea1o c\u00e2y gh\u00e9p trong v\u01b0\u1eddn \u01b0\u01a1m \u0111\u1ec1 t\u00e0i \u0111\u00e3 x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c 3 ha m\u00f4 h\u00ecnh t\u1ea1i T\u00e2n L\u1ea1c &#8211; Ho\u00e0 B\u00ecnh v\u00e0 Y\u00ean Th\u00e0nh \u2013 Ngh\u1ec7 An b\u1eb1ng c\u00e2y gh\u00e9p. K\u1ebft qu\u1ea3 theo d\u00f5i \u0111\u00e1nh gi\u00e1 c\u00e1c m\u00f4 h\u00ecnh tr\u1ed3ng r\u1eebng \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p nh\u01b0 sau:<\/p>\n<p>+ Tr\u1ed3ng tr\u00ean \u0111\u1ea5t sau canh t\u00e1c c\u00e2y c\u00f4ng nghi\u1ec7p 1ha (D\u1ee9a) th\u1ef1c b\u00ec ch\u1ee7 y\u1ebfu l\u00e0 c\u1ecf L\u00e0o,\u00a0 mua v\u00e0 c\u00e2y b\u1ee5i kh\u00e1c, \u0111\u1ed9 che ph\u1ee7 kho\u1ea3ng 40%, tr\u00ean hi\u1ec7n tr\u01b0\u1eddng \u0111\u1ec3 l\u1ea1i nh\u1eefng h\u00e0ng D\u1ee9a \u0111\u1ec3 t\u1eadn thu v\u00e0 ch\u1ed1ng x\u00f3i m\u00f2n. T\u1ea7ng \u0111\u1ea5t d\u00e0y t\u01b0\u01a1ng \u0111\u1ed1i t\u1ed1t.<\/p>\n<p>+ Tr\u1ed3ng to\u00e0n di\u1ec7n c\u00f3 tr\u1ed3ng c\u00e2y C\u1ed1t Kh\u00ed ph\u00f9 tr\u1ee3, di\u1ec7n t\u00edch 1ha.<\/p>\n<p>* B\u1ed1 tr\u00ed th\u00ed nghi\u1ec7m:<\/p>\n<p>&#8211; C\u00e2y gh\u00e9p sau khi gh\u00e9p th\u00e0nh c\u00f4ng \u0111\u01b0\u1ee3c ch\u0103m s\u00f3c ti\u1ebfp \u1edf v\u01b0\u1eddn \u01b0\u01a1m 1 n\u0103m, c\u00e2y \u0111\u01b0\u1ee3c \u01b0\u01a1m trong b\u1ea7u c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn 12 x 18 cm, m\u1eadt \u0111\u1ed9 tr\u1ed3ng 500 c\u00e2y\/ha (c\u1ef1 ly 4 m x 5 m), h\u1ed1 cu\u1ed1c 50 x 50 x 50 cm, b\u00f3n l\u00f3t 5 kg ph\u00e2n chu\u1ed3ng + 1 kg ph\u00e2n vi sinh\/h\u1ed1, c\u00f3 tr\u1ed3ng to\u00e0n di\u1ec7n, ch\u0103m s\u00f3c 3 l\u1ea7n\/n\u0103m (ch\u1ee7 y\u1ebfu l\u00e0 ph\u00e1t th\u1ef1c b\u00ec, x\u1edbi v\u00e0 vun quanh g\u1ed1c r\u1ed9ng 1 m\u00e9t).<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><i>3.5\u00a0 \u0110\u00e1nh gi\u00e1 v\u1ec1 sinh tr\u01b0\u1edfng c\u00e1c m\u00f4 h\u00ecnh:<\/i><\/p>\n<p>K\u1ebft qu\u1ea3 theo d\u00f5i sinh tr\u01b0\u1edfng \u1edf c\u00e1c m\u00f4 h\u00ecnh \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p theo bi\u1ec3u d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n<p align=\"center\"><i>Bi\u1ec3u 03: <\/i>Sinh tr\u01b0\u1edfng c\u1ee7a tr\u00e1m gh\u00e9p tr\u1ed3ng n\u0103m 2005( \u0110o l\u1ea7n cu\u1ed1i th\u00e1ng 12\/2007)<\/p>\n<table width=\"604\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td width=\"136\">\n<p align=\"center\">\u0110\u1ecba \u0111i\u1ec3m<\/p>\n<\/td>\n<td width=\"168\">\n<p align=\"center\">M\u00f4 h\u00ecnh<\/p>\n<\/td>\n<td width=\"64\">\n<p align=\"center\">T\u1ef7 l\u1ec7<\/p>\n<p align=\"center\">c\u00f2n l\u1ea1i<\/p>\n<p align=\"center\">(%)<\/p>\n<\/td>\n<td width=\"56\">\n<p align=\"center\">Doo<\/p>\n<p align=\"center\">(cm)<\/p>\n<\/td>\n<td width=\"56\">\n<p align=\"center\">Hvn<\/p>\n<p align=\"center\">(m)<\/p>\n<\/td>\n<td width=\"56\">\n<p align=\"center\">DT<\/p>\n<p align=\"center\">(m)<\/p>\n<\/td>\n<td width=\"68\">\n<p align=\"center\">T\u1ef7 l\u1ec7 c\u00e2y<\/p>\n<p align=\"center\">c\u00f3 hoa<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"136\">\n<p align=\"center\">T\u00e2n L\u1ea1c- HB<\/p>\n<\/td>\n<td width=\"168\">Tr\u1ed3ng thu\u1ea7n lo\u00e0i<\/td>\n<td width=\"64\">\n<p align=\"center\">90<\/p>\n<\/td>\n<td width=\"56\">\n<p align=\"center\">3,85<\/p>\n<\/td>\n<td width=\"56\">\n<p align=\"center\">1,68<\/p>\n<\/td>\n<td width=\"56\">\n<p align=\"center\">1,05<\/p>\n<\/td>\n<td width=\"68\">\n<p align=\"center\">0<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\" width=\"136\">\n<p align=\"center\">Y\u00ean th\u00e0nh &#8211; Ngh\u1ec7 an<\/p>\n<\/td>\n<td width=\"168\">\n<p align=\"center\">Tr\u1ed3ng xen c\u00e2y c\u00f4ng nghi\u1ec7p (D\u1ee9a)<\/p>\n<\/td>\n<td width=\"64\">\n<p align=\"center\">86<\/p>\n<\/td>\n<td width=\"56\">\n<p align=\"center\">3,74<\/p>\n<\/td>\n<td width=\"56\">\n<p align=\"center\">1,65<\/p>\n<\/td>\n<td width=\"56\">\n<p align=\"center\">0,94<\/p>\n<\/td>\n<td width=\"68\">\n<p align=\"center\">0<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"168\">\n<p align=\"center\">Tr\u1ed3ng c\u00f3 c\u00e2y ph\u00f9 tr\u1ee3<\/p>\n<\/td>\n<td width=\"64\">\n<p align=\"center\">82<\/p>\n<\/td>\n<td width=\"56\">\n<p align=\"center\">3,5<\/p>\n<\/td>\n<td width=\"56\">\n<p align=\"center\">1,56<\/p>\n<\/td>\n<td width=\"56\">\n<p align=\"center\">0,80<\/p>\n<\/td>\n<td width=\"68\">\n<p align=\"center\">0<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><i>\u00a0Nh\u1eadn x\u00e9t:<\/i><\/p>\n<p><i>\u00a0&#8211;<\/i> T\u1ef7 l\u1ec7 s\u1ed1ng: c\u00e1c m\u00f4 h\u00ecnh sau khi tr\u1ed3ng n\u0103m \u0111\u1ea7u ti\u00ean \u0111\u1ec1u \u0111\u1ea1t tr\u00ean 90%,\u00a0 nh\u01b0ng sau \u0111\u00f3 \u0111\u1ebfn n\u0103m 2007 (sau 3 n\u0103m) t\u1ef7 l\u1ec7 t\u1ed3n t\u1ea1i trong c\u00e1c m\u00f4 h\u00ecnh th\u00ed nghi\u1ec7m c\u00f2n t\u01b0\u01a1ng \u0111\u1ed1i cao 82% v\u00e0 86% \u1edf Ngh\u1ec7 an v\u00e0 90% \u1edf H\u00f2a B\u00ecnh. &#8211; V\u1ec1 sinh tr\u01b0\u1edfng: \u0111\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u cao c\u1ee7a 2 m\u00f4 h\u00ecnh \u1edf T\u00e2n L\u1ea1c \u2013 H\u00f2a B\u00ecnh v\u00e0 Y\u00ean Th\u00e0nh \u2013 Ngh\u1ec7 an sinh tr\u01b0\u1edfng\u00a0 t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u1ed3ng \u0111\u1ec1u.<\/p>\n<p><b>IV. K\u1ebeT LU\u1eacN V\u00c0 KI\u1ebeN NGH\u1eca<\/b><\/p>\n<p>4.1. K\u1ebft lu\u1eadn<\/p>\n<p>&#8211; Tr\u00e1m \u0111en l\u00e0 c\u00e2y r\u1eebng c\u00f3 th\u1ec3 nh\u00e2n gi\u1ed1ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p, t\u1ef7 l\u1ec7 th\u00e0nh c\u00f4ng \u0111\u1ea1t trung b\u00ecnh 50%, Ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p \u00e1p b\u00ean th\u00e2n v\u00e0 ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p n\u00eam l\u00e0 hai ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ea1t k\u1ebft qu\u1ea3 cao nh\u1ea5t, Th\u1eddi v\u1ee5 gh\u00e9p t\u1ed1t nh\u1ea5t l\u00e0 v\u1ee5 Xu\u00e2n (th\u00e1ng 3,4) v\u00e0 v\u1ee5 Thu (th\u00e1ng 9,10).<\/p>\n<p>&#8211; Ph\u01b0\u01a1ng th\u1ee9c tr\u1ed3ng r\u1eebng b\u1eb1ng c\u00e2y con gieo t\u1eeb h\u1ea1t v\u00e0 tr\u1ed3ng to\u00e0n di\u1ec7n c\u00f3 c\u00e2y ph\u00f9 tr\u1ee3 giai \u0111o\u1ea1n \u0111\u1ea7u t\u1ecf ra ph\u00f9 h\u1ee3p v\u1edbi sinh tr\u01b0\u1edfng qu\u1ea7n th\u1ec3 c\u1ee7a c\u00e2y Tr\u00e1m \u0111en c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng m\u1ee5c ti\u00eau tr\u1ed3ng r\u1eebng l\u1ea5y g\u1ed7.<\/p>\n<p>&#8211; Trong giai \u0111o\u1ea1n r\u1eebng 1- 4 tu\u1ed5i Tr\u00e1m \u0111en c\u1ea7n c\u00f3 c\u00e2y che ph\u1ee7 h\u1ed7 tr\u1ee3 cho c\u00e2y sinh tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n. C\u00e2y che ph\u1ee7 h\u1ed7 tr\u1ee3 ph\u00f9 h\u1ee3p l\u00e0 c\u00e2y C\u1ed1t kh\u00ed v\u00e0 c\u00e2y Keo.<\/p>\n<p>&#8211; Ph\u01b0\u01a1ng\u00a0 th\u1ee9c tr\u1ed3ng d\u00f9ng c\u00e2y Keo lai ph\u00f9 tr\u1ee3 c\u1ea7n c\u00f3 bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt t\u00e1c \u0111\u1ed9ng nh\u01b0 t\u1ec9a c\u00e0nh ho\u1eb7c t\u1ec9a th\u01b0a keo t\u1eeb n\u0103m th\u1ee9 3 tr\u1edf \u0111i, \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 t\u00e0n che c\u1ee7a c\u00e2y ph\u00f9 tr\u1ee3 \u0111\u1ed1i v\u1edbi c\u00e2y Tr\u00e1m.<\/p>\n<p>&#8211; Ph\u01b0\u01a1ng th\u1ee9c tr\u1ed3ng r\u1eebng b\u1eb1ng c\u00e2y gh\u00e9p v\u00e0 tr\u1ed3ng theo ph\u01b0\u01a1ng th\u1ee9c N\u00f4ng l\u00e2m k\u1ebft h\u1ee3p c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau tr\u1ed3ng r\u1eebng l\u1ea5y qu\u1ea3.<\/p>\n<p>4.2. Ki\u1ebfn ngh\u1ecb.<\/p>\n<p>&#8211; N\u00ean ti\u1ebfp t\u1ee5c ch\u0103m s\u00f3c v\u00e0 theo d\u00f5i m\u00f4 h\u00ecnh th\u00ed nghi\u1ec7m th\u00eam 3 n\u0103m n\u1eefa \u0111\u1ec3 c\u00f3 \u0111\u1ee7 s\u1ed1 li\u1ec7u l\u00e0m c\u01a1 s\u1edf \u0111\u00e1nh gi\u00e1.<\/p>\n<p>&#8211; C\u1ea7n ph\u1ea3i c\u00f3 chi\u1ebfn l\u01b0\u1ee3c nghi\u00ean c\u1ee9u to\u00e0n di\u1ec7n h\u01a1n v\u1ec1 v\u1ea5n \u0111\u1ec1 c\u1ea3i thi\u1ec7n gi\u1ed1ng cho lo\u00e0i c\u00e2y Tr\u00e1m \u0111en.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tr\u1ea7n \u0110\u1ee9c M\u1ea1nh \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Trung t\u00e2m \u1ee9ng d\u1ee5ng KHKT l\u00e2m nghi\u1ec7p I\/ \u0110\u1eb6T V\u1ea4N \u0110\u1ec0 Tr\u00e1m \u0111en (Canarium tramdenum Dai&amp; Yakovl) l\u00e0 c\u00e2y g\u1ed7 l\u1edbn b\u1ea3n \u0111\u1ecba, c\u00f3 chi\u1ec1u cao t\u1eeb 20-30m, \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c \u0111\u1ea1t 50-70cm, th\u00e2n tr\u00f2n th\u1eb3ng, t\u00e1n r\u1ed9ng v\u00e0 l\u00e1 xanh quanh n\u0103m. Tr\u00e1m \u0111en l\u00e0 c\u00e2y \u0111a m\u1ee5c \u0111\u00edch [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[21,72],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/13752"}],"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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=13752"}],"version-history":[{"count":4,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/13752\/revisions"}],"predecessor-version":[{"id":13760,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/13752\/revisions\/13760"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=13752"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=13752"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=13752"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}