{"id":8602,"date":"2009-03-24T02:25:19","date_gmt":"2009-03-23T19:25:19","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2009\/03\/nghien-cuu-ky-thuat-gay-trong-tre-lay-mang\/"},"modified":"2019-09-25T10:14:25","modified_gmt":"2019-09-25T03:14:25","slug":"nghien-cuu-ky-thuat-gay-trong-tre-lay-mang","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/nghien-cuu-ky-thuat-gay-trong-tre-lay-mang\/","title":{"rendered":"nghi\u00ean c\u1ee9u k\u1ef9 thu\u1eadt g\u00e2y tr\u1ed3ng Tre l\u1ea5y m\u0103ng"},"content":{"rendered":"

L\u00ea Quang Li\u00ean v\u00e0 Nguy\u1ec5n Danh Minh<\/em><\/strong><\/p>\n

Trung t\u00e2m NC th\u1ef1c nghi\u1ec7m L\u00e2m sinh C\u1ea7u Hai<\/em><\/p>\n

Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n

Tr\u00ean th\u1ebf gi\u1edbi c\u00f3 t\u1edbi 1250 lo\u00e0i Tre tr\u00fac thu\u1ed9c 75 chi kh\u00e1c nhau, ch\u00fang ph\u00e2n b\u1ed1 \u1edf h\u1ea7u h\u1ebft c\u00e1c v\u00f9ng kh\u00ed h\u1eadu (nhi\u1ec7t \u0111\u1edbi, \u00f4n \u0111\u1edbi, \u00e1 nhi\u1ec7t \u0111\u1edbi); t\u1eeb \u0111\u1ed9 cao ngang m\u1ef1c n\u01b0\u1edbc bi\u1ec3n \u0111\u1ebfn \u0111\u1ed9 cao 4000m nh\u01b0 \u1edf s\u01b0\u1eddn d\u00e3y n\u00fai Hymalaya. Ph\u1ea7n l\u1edbn c\u00e1c lo\u00e0i Tre tr\u00fac quan tr\u1ecdng \u0111\u1ec1u ph\u00e2n b\u1ed1 tr\u00ean di\u1ec7n t\u00edch r\u1ed9ng \u1edf c\u00e1c n\u01b0\u1edbc ch\u00e2u \u00e1 . Tre tr\u00fac g\u1eafn b\u00f3 m\u1eadt thi\u1ebft v\u1edbi cu\u1ed9c s\u1ed1ng c\u1ee7a ng\u01b0\u1eddi n\u00f4ng d\u00e2n Vi\u1ec7t Nam b\u1edfi r\u1ea5t nhi\u1ec1u c\u00f4ng d\u1ee5ng c\u1ee7a n\u00f3.<\/p>\n

Theo B\u1ed9 th\u1ef1c v\u1eadt ch\u00ed \u0110\u00f4ng D\u01b0\u01a1ng (Le Comte) th\u00ec Vi\u1ec7t Nam c\u00f3 61 lo\u00e0i Tre tr\u00fac kh\u00e1c nhau thu\u1ed9c 31 chi. C\u00e1c t\u00e0i li\u1ec7u \u0111i\u1ec1u tra c\u1ee7a Phan K\u1ebf L\u1ed9c, V\u0169 V\u0103n D\u0169ng (1976) th\u00ec ri\u00eang \u1edf mi\u1ec1n b\u1eafc Vi\u1ec7t Nam c\u00e1c t\u00e1c gi\u1ea3 \u0111\u00e3 th\u1ed1ng k\u00ea \u0111\u01b0\u1ee3c 45 lo\u00e0i thu\u1ed9c 15 chi Tre tr\u00fac kh\u00e1c nhau. V\u00f9ng Trung t\u00e2m c\u00f3 kh\u00ed h\u1eadu nhi\u1ec7t \u0111\u1edbi m\u01b0a m\u00f9a c\u0169ng ch\u00ednh l\u00e0 c\u00e1i n\u00f4i ph\u00e2n b\u1ed1 c\u1ee7a Tre tr\u00fac. Ch\u1ec9 t\u00ednh ri\u00eang v\u00f9ng S\u00f4ng L\u00f4, s\u00f4ng G\u00e2m, s\u00f4ng Ch\u1ea3y c\u0169ng \u0111\u00e3 c\u00f3 33 lo\u00e0i Tre tr\u00fac thu\u1ed9c 6 chi (Ban th\u1ef1c v\u1eadt ch\u00ed mi\u1ec1n b\u1eafc, T\u1ed5ng c\u1ee5c l\u00e2m nghi\u1ec7p – 1974).<\/p>\n

Tr\u00ean th\u1ebf gi\u1edbi \u0111\u00e3 c\u00f3 r\u1ea5t nhi\u1ec1u c\u00f4ng tr\u00ecnh nghi\u00ean c\u1ee9u v\u1ec1 Tre tr\u00fac. \u1edf Trung Qu\u1ed1c c\u0169ng c\u00f3 nhi\u1ec1u c\u00f4ng tr\u00ecnh nghi\u00ean c\u1ee9u v\u1ec1 Tre tr\u00fac (Tre B\u00e1t \u0110\u1ed9, Tre l\u1ee5c tr\u00fac, Tre mao tr\u00fac, Tre c\u00fac tr\u00fac) v\u00e0 h\u1ecd c\u00f3 nhi\u1ec1u nh\u00e0 m\u00e1y ch\u1ebf bi\u1ebfn Tre tr\u00fac v\u00e0 m\u0103ng.<\/p>\n

\u1edf Vi\u1ec7t Nam, nghi\u00ean c\u1ee9u v\u1ec1 Tre tr\u00fac \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh t\u1eeb nh\u1eefng n\u0103m \u0111\u1ea7u c\u1ee7a th\u1eadp k\u1ef7 60. T\u1eeb n\u0103m 1986 tr\u1edf l\u1ea1i \u0111\u00e2y, c\u00e1c lo\u00e0i Tre tr\u00fac \u0111\u01b0\u1ee3c g\u00e2y tr\u1ed3ng v\u1edbi qui m\u00f4 di\u1ec7n t\u00edch l\u1edbn \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u nh\u01b0 l\u00e0m v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng, nguy\u00ean li\u1ec7u gi\u1ea5y, c\u00e1c m\u1eb7t h\u00e0ng xu\u1ea5t kh\u1ea9u .v.v. Ngo\u00e0i vi\u1ec7c s\u1eed d\u1ee5ng th\u00e2n c\u00e2y, m\u0103ng c\u1ee7a c\u00e1c lo\u00e0i Tre l\u1ea1i l\u00e0 m\u1ed9t lo\u1ea1i th\u1ef1c ph\u1ea9m, \u0111\u00e2y xem nh\u01b0 m\u1ed9t lo\u1ea1i rau s\u1ea1ch, \u0103n ngon c\u00f3 gi\u00e1 tr\u1ecb ph\u1ee5c v\u1ee5 th\u1ecb tr\u01b0\u1eddng n\u1ed9i \u0111\u1ecba v\u00e0 xu\u1ea5t kh\u1ea9u; n\u0103m1995, m\u1ed9t s\u1ed1 v\u00f9ng \u0111\u00e3 tr\u1ed3ng Tre \u0111\u1ec3 l\u1ea5y m\u0103ng nh\u01b0ng ph\u1ea7n l\u1edbn l\u00e0 tr\u1ed3ng c\u00e1c lo\u00e0i Tre c\u1ee7a \u0110\u00e0i Loan, Trung Qu\u1ed1c. Vi\u1ec7t Nam c\u0169ng c\u00f3 r\u1ea5t nhi\u1ec1u lo\u00e0i Tre m\u0103ng \u0103n ngon, g\u00e2y tr\u1ed3ng ch\u00fang \u0111\u1ec3 kinh doanh m\u0103ng l\u00e0 y\u00eau c\u1ea7u c\u1ee7a s\u1ea3n xu\u1ea5t \u0111\u1eb7t ra.<\/p>\n

I. Ph\u01b0\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u<\/h1>\n

1. Ph\u01b0\u01a1ng ph\u00e1p thu th\u1eadp s\u1ed1 li\u1ec7u<\/strong><\/p>\n

– Ph\u01b0\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u t\u00e0i li\u1ec7u: Ngu\u1ed3n t\u00e0i li\u1ec7u t\u1eeb c\u00e1c b\u00e1o c\u00e1o khoa h\u1ecdc, t\u1ea1p ch\u00ed v\u1ec1 Tre tr\u00fac \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1; c\u00e1c t\u00e0i li\u1ec7u v\u1ec1 \u0111\u1ea5t \u0111ai, \u0111i\u1ec1u ki\u1ec7n t\u1ef1 nhi\u00ean kinh t\u1ebf x\u00e3 h\u1ed9i trong v\u00f9ng.<\/p>\n

– Ph\u01b0\u01a1ng ph\u00e1p sinh th\u00e1i th\u1ef1c nghi\u1ec7m: K\u1ebft h\u1ee3p nghi\u00ean c\u1ee9u \u1edf v\u01b0\u1eddn \u01b0\u01a1m v\u1edbi tr\u00ean r\u1eebng, gi\u1eefa s\u1ed1 li\u1ec7u v\u00e0 quan s\u00e1t nh\u1eadn x\u00e9t. L\u1eadp c\u00e1c \u00f4 th\u00ed nghi\u1ec7m thu th\u1eadp s\u1ed1 li\u1ec7u, m\u1ed7i lo\u00e0i 4 \u00f4, m\u1ed7i \u00f4 30 b\u00fai l\u1eb7p l\u1ea1i 3 l\u1ea7n. Trong c\u00e1c \u00f4 thu th\u1eadp s\u1ed1 li\u1ec7u theo n\u1ed9i dung nghi\u00ean c\u1ee9u.<\/p>\n

2. Ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd s\u1ed1 li\u1ec7u<\/strong><\/p>\n

– Ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch t\u1ed5ng h\u1ee3p.<\/p>\n

– Ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd tr\u00ean m\u00e1y vi t\u00ednh b\u1eb1ng ph\u1ea7n m\u1ec1m Excel.<\/p>\n

3. Ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u tra kh\u1ea3o s\u00e1t<\/strong><\/p>\n

Ti\u1ebfn h\u00e0nh kh\u1ea3o s\u00e1t m\u00f4 h\u00ecnh tr\u1ed3ng Tre \u0110\u00e0i Loan \u1edf T\u00e2n Y\u00ean (B\u1eafc giang); Tre t\u00e0u \u1edf B\u00ecnh Ph\u00fa (B\u00ecnh Ph\u01b0\u1edbc); Tre M\u1ea1nh T\u00f4ng t\u1ea1i T\u00e2n L\u1ed9c (\u0110\u1ed3ng Nai) \u0111\u1ec3 kinh doanh m\u0103ng.<\/p>\n

4. \u0110\u1ed1i t\u01b0\u1ee3ng nghi\u00ean c\u1ee9u:<\/strong><\/p>\n

\u0110\u1ed1i t\u01b0\u1ee3ng nghi\u00ean c\u1ee9u l\u00e0 2 lo\u00e0i Tre: Lu\u1ed3ng v\u00e0 Tre g\u1ea7y<\/p>\n

II. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u<\/p>\n

1. \u0110\u1eb7c \u0111i\u1ec3m c\u00e2y lu\u1ed3ng<\/strong><\/p>\n

Lu\u1ed3ng (Dendrocalamus membranaceus<\/em> Munro) thu\u1ed9c h\u1ecd Ph\u1ee5 Tre tr\u00fac Bambusoideae, <\/em>b\u1ed9 Ho\u00e0 th\u1ea3o ( Graminales)<\/em> l\u00e0 lo\u00e0i Tre ph\u00e1t tri\u1ec3n theo c\u1ee5m.<\/p>\n

Lu\u1ed3ng th\u00e2n th\u1eb3ng tr\u00f2n \u0111\u1ec1u \u0111\u1ed9 thon nh\u1ecf, nhi\u1ec1u c\u00e0nh, c\u00e0nh kh\u00f4ng c\u00f3 gai, n\u00ean ti\u1ec7n vi\u1ec7c s\u1ea3n xu\u1ea5t gi\u1ed1ng b\u1eb1ng c\u00e0nh. \u0110\u01b0\u1eddng k\u00ednh th\u00e2n c\u00e2y t\u1eeb 8 – 12cm, chi\u1ec1u d\u00e0i t\u1eeb 18 – 20m tr\u1ecdng l\u01b0\u1ee3ng t\u01b0\u01a1i t\u1eeb 40 – 50kg, c\u00e1 bi\u1ec7t c\u00f3 c\u00e2y n\u1eb7ng tr\u00ean 70kg. C\u00e2y lu\u1ed3ng c\u1ee9ng r\u1eafn, t\u1ec9 l\u1ec7 xenlul\u00f4 kh\u00e1 cao (46,5% \u1edf \u0111o\u1ea1n g\u1ed1c, 57,7% \u1edf \u0111o\u1ea1n gi\u1eefa v\u00e0 \u0111o\u1ea1n ng\u1ecdn). Gi\u00e1 tr\u1ecb c\u00e2y lu\u1ed3ng kh\u00f4ng d\u1eebng \u1edf vi\u1ec7c l\u00e0m v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng m\u00e0 c\u00f2n s\u1eed d\u1ee5ng l\u00e0m nguy\u00ean li\u1ec7u gi\u1ea5y, t\u01a1 nh\u00e2n t\u1ea1o, v\u00e1n s\u00e0n trang tr\u00ed n\u1ed9i th\u1ea5t, chi\u1ebfu xu\u1ea5t kh\u1ea9u .v.v.<\/p>\n

M\u0103ng c\u1ee7a lu\u1ed3ng \u0103n ngon c\u00f3 h\u00e0m l\u01b0\u1ee3ng dinh d\u01b0\u1ee1ng cao (t\u00ednh theo % ch\u1ea5t kh\u00f4). \u0110\u01b0\u1eddng t\u1ed5ng s\u1ed1 20,7%, \u0111\u1ea1m t\u1ed5ng s\u1ed1 3,10%, protit 19,37%, acid amin 2,10% , xenlul\u00f4 28%, Vitamin C 167,20( t\u00ednh theo mg\/100g)<\/p>\n

Lu\u1ed3ng sinh tr\u01b0\u1edfng ph\u00e1t tri\u1ec3n nhanh, sau khi tr\u1ed3ng 5 n\u0103m b\u1eaft \u0111\u1ea7u cho thu s\u1ea3n ph\u1ea9m, th\u1eddi gian thu ho\u1ea1ch s\u1ea3n ph\u1ea9m k\u00e9o d\u00e0i 40 – 50 n\u0103m li\u1ec1n. \u0110\u00e2y l\u00e0 lo\u00e0i c\u00e2y tr\u1ed3ng 1 l\u1ea7n cho thu ho\u1ea1ch nhi\u1ec1u l\u1ea7n theo ph\u01b0\u01a1ng th\u1ee9c khai th\u00e1c ch\u1ecdn, ch\u1ec9 khai th\u00e1c c\u00e2y tr\u00ean 3 tu\u1ed5i, c\u00e2y 1, 2 n\u0103m tu\u1ed5i ph\u1ea3i gi\u1eef l\u1ea1i \u0111\u1ec3 ti\u1ebfp t\u1ee5c sinh m\u0103ng, sinh c\u00e2y (th\u01b0\u1eddng khai th\u00e1c c\u01b0\u1eddng \u0111\u1ed9 30% tr\u1eef l\u01b0\u1ee3ng r\u1eebng). Chu k\u1ef3 khai th\u00e1c ng\u1eafn (1 – 2 n\u0103m \/ l\u1ea7n). L\u01b0\u1ee3ng khai th\u00e1c t\u1eeb 1200 – 1400c\u00e2y \/ha.<\/p>\n

Tr\u01b0\u1edbc \u0111\u00e2y vi\u1ec7c ph\u00e1t tri\u1ec3n g\u00e2y tr\u1ed3ng Tre n\u00f3i chung v\u00e0 Tre lu\u1ed3ng n\u00f3i ri\u00eang gi\u1ed1ng tr\u1ed3ng b\u1eb1ng g\u1ed1c l\u00e0 ch\u1ee7 y\u1ebfu. Nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y (1986 – 1990) t\u1ea1i Trung t\u00e2m Nghi\u00ean c\u1ee9u Th\u1ef1c nghi\u1ec7m L\u00e2m sinh C\u1ea7u Hai \u0111\u00e3 th\u00e0nh c\u00f4ng v\u1ec1 t\u1ea1o gi\u1ed1ng lu\u1ed3ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p chi\u1ebft c\u00e0nh c\u00f3 b\u1ecdc nilon. N\u1ebfu c\u00e2y lu\u1ed3ng ch\u1ecdn \u0111\u1ec3 l\u1ea5y m\u0103ng th\u00ec ngu\u1ed3n gi\u1ed1ng \u0111\u1ee7 \u0111\u00e1p \u1ee9ng. \u0110\u1ed1i v\u1edbi c\u00e2y lu\u1ed3ng hi\u1ec7n nay c\u00f2n t\u1ed3n t\u1ea1i l\u00e0 gi\u00e1 c\u1ee7a m\u0103ng lu\u1ed3ng r\u1ea5t th\u1ea5p (0,9 USD\/kg t\u01b0\u01a1i) so v\u1edbi gi\u00e1 m\u0103ng c\u1ee7a m\u1ed9t s\u1ed1 lo\u00e0i Tre kh\u00e1c nh\u01b0 m\u0103ng Tre \u0110\u00e0i Loan (4 USD\/kg t\u01b0\u01a1i).<\/p>\n

2. \u0110\u1eb7c \u0111i\u1ec3m Tre g\u1ea7y<\/strong><\/p>\n

Tre g\u1ea7y c\u00f3 t\u00ean khoa h\u1ecdc l\u00e0 Dendrocalamus<\/em> sp., thu\u1ed9c h\u1ecd ph\u1ee5 Tre tr\u00fac (Bambusoideae), <\/em>b\u1ed9 Ho\u00e0 th\u1ea3o (Graminales), <\/em>t\u00ean \u0111\u1ecba ph\u01b0\u01a1ng: Tre g\u1ea7y (Kinh), m\u1ea1y th\u00f3c (T\u00e0y – Na Hang, Tuy\u00ean Quang v\u00e0 B\u1eafc Th\u00e1i)<\/p>\n

\u0110\u00e2y l\u00e0 lo\u00e0i Tre th\u00e2n ng\u1ea7m d\u1ea1ng c\u1ee7, Tre m\u1ecdc c\u1ee5m, ng\u1ecdn cong r\u1ee7, cao 13 – 18m, \u0111\u01b0\u1eddng k\u00ednh t\u1eeb 6 – 11 cm, c\u00e2y gi\u00e0 c\u00f3 da m\u00e0u xanh v\u00e0ng, l\u00f3ng d\u00e0i 25 – 40cm, v\u00e1ch d\u00e0y 12 – 15mm, v\u00f2ng mo n\u1ed5i, v\u00f2ng r\u1ec5 mang r\u1ec5 \u1edf c\u00e1c \u0111\u1ed1t ph\u00eda g\u1ed1c, hai b\u00ean v\u00f2ng mo c\u00f3 2 v\u00f2ng l\u00f4ng ph\u1ea5n tr\u1eafng, m\u1ed7i \u0111\u1ed1t mang nhi\u1ec1u c\u00e0nh, c\u00e0nh gi\u1eefa to h\u01a1n c\u00e1c c\u00e0nh kh\u00e1c m\u1ed9t \u00edt, mo th\u00e2n c\u00f3 b\u1eb9 h\u00ecnh chu\u00f4ng, l\u01b0ng c\u00f3 nhi\u1ec1u l\u00f4ng c\u1ee9ng m\u00e0u hung, g\u1ea7n \u0111\u00e1y c\u00f3 l\u1edbp l\u00f4ng m\u1ec1m nh\u01b0 nhung m\u00e0u t\u00edm. Tai mo r\u1ea5t nh\u1ecf c\u00f3 l\u00f4ng, c\u00f3 tai gi\u1ea3, th\u00eca l\u00eca cao 2mm, m\u00e9p c\u00f3 l\u00f4ng d\u00e0i, phi\u1ebfn mo h\u00ecnh ng\u1ecdn gi\u00e1o hay h\u00ecnh tr\u1ee9ng, ng\u1ecdn gi\u00e1o mang m\u00e0u xanh v\u00e0ng.<\/p>\n

Tre g\u1ea7y ph\u00e2n b\u1ed1 \u0111\u1ed9 cao < 400m, d\u1ed1c d\u01b0\u1edbi 200<\/sup>, tr\u00ean \u0111\u1ecba h\u00ecnh ch\u00e2n s\u01b0\u1eddn n\u00fai ven s\u00f4ng su\u1ed1i , m\u00f9a ra m\u0103ng th\u00e1ng 6,7 c\u00e2y c\u00f3 ra hoa v\u00e0 t\u00e1i sinh b\u1eb1ng h\u1ea1t (Na Hang – Tuy\u00ean Quang). Tre g\u1ea7y tr\u1ed3ng b\u1eb1ng g\u1ed1c.<\/p>\n

Th\u00e2n Tre c\u1ee9ng, m\u1eaft to, v\u00e1ch m\u1ecfng hay b\u1ecb m\u1ed1i m\u1ecdt cho n\u00ean \u00edt \u0111\u01b0\u1ee3c d\u00f9ng trong x\u00e2y d\u1ef1ng, c\u00e2y d\u00f9ng l\u00e0m nguy\u00ean li\u1ec7u gi\u1ea5y, m\u0103ng g\u1ea7y \u0103n ngon th\u01b0\u01a1ng \u0111\u01b0\u1ee3c ph\u01a1i l\u00e0m m\u0103ng kh\u00f4.<\/p>\n

3. Qui lu\u1eadt sinh m\u0103ng<\/strong><\/p>\n

\u0110\u1eb7c \u0111i\u1ec3m chung c\u1ee7a 2 lo\u00e0i Tre g\u1ea7y v\u00e0 Tre lu\u1ed3ng:<\/p>\n

– \u0110\u1ec1u l\u00e0 Tre m\u1ecdc c\u1ee5m (ki\u1ec3u h\u1ee3p tr\u1ee5c),<\/p>\n

– M\u00f9a ra m\u0103ng t\u1eadp trung v\u00e0o m\u00f9a m\u01b0a (th\u00e1ng 5 – th\u00e1ng 9),<\/p>\n

– \u0110\u1ec1u l\u00e0 c\u00e2y \u01b0a s\u00e1ng, \u01b0a \u0111\u1ea5t t\u1ed1t,<\/p>\n

– Bi\u00ean \u0111\u1ed9 sinh th\u00e1i r\u1ed9ng (h\u1ea7u h\u1ebft c\u00f3 \u1edf c\u00e1c t\u1ec9nh mi\u1ec1n b\u1eafc),<\/p>\n

– Th\u00e2n ng\u1ea7m \u0111\u1ec1u c\u00f3 2 h\u00e0ng m\u1eaft hai b\u00ean, c\u00e1c m\u1eaft n\u00e0y (ch\u1ed3i ng\u1ee7) l\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng ph\u00e1t tri\u1ec3n th\u00e0nh m\u0103ng, th\u00e0nh Tre. Qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n t\u1eeb m\u0103ng th\u00e0nh Tre \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n nh\u01b0 c\u00e1i \u0111\u00e8n x\u1ebfp b\u1eb1ng s\u1ef1 k\u00e9o d\u00e0i li\u00ean t\u1ee5c c\u1ee7a c\u00e1c l\u00f3ng, khi m\u0103ng l\u00ean cao c\u00e1c b\u1eb9 mo gi\u00e0 kh\u00f4 r\u1ee5ng \u0111i th\u00ec l\u00fac \u0111\u00f3 k\u00edch th\u01b0\u1edbc c\u1ee7a l\u00f3ng Tre \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u00ecnh v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u d\u00e0i, khi c\u00e2y m\u0103ng ph\u00e1t tri\u1ec3n \u0111\u1ebfn chi\u1ec1u cao, ng\u1ecdn m\u0103ng c\u00f3 \u0111u\u00f4i \u00e9n th\u00ec k\u1ebft th\u00fac giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n c\u1ee7a m\u0103ng v\u00e0 l\u00fac n\u00e0y c\u00e2y Tre \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u00ecnh v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u cao, t\u1eeb \u0111\u00f3 v\u1ec1 sau c\u00e2y Tre kh\u00f4ng to v\u00e0 cao th\u00eam m\u00e0 ch\u1ec9 t\u0103ng th\u00eam v\u1ec1 ph\u1ea9m ch\u1ea5t, c\u00e2y gi\u00e0 c\u1ee9ng t\u0103ng gi\u00e1 tr\u1ecb s\u1eed d\u1ee5ng.<\/p>\n

R\u1eebng Tre sau khi tr\u1ed3ng ra m\u0103ng v\u00e0o m\u00f9a m\u01b0a t\u1eeb th\u00e1ng 5 – 9 h\u00e0ng n\u0103m. \u0110\u1ed1i t\u01b0\u1ee3ng c\u00e2y ra m\u0103ng l\u00e0 c\u00e2y d\u01b0\u1edbi 1 n\u0103m tu\u1ed5i, m\u1ed7i g\u1ed1c Tre 1 tu\u1ed5i c\u00f3 t\u1eeb 8 – 14 ch\u1ed3i ng\u1ee7, nh\u01b0ng m\u1ed7i g\u1ed1c ch\u1ec9 sinh t\u1eeb 2 \u0111\u1ebfn 4 m\u0103ng, v\u00e0 kh\u1ea3 n\u0103ng ph\u00e1t tri\u1ec3n th\u00e0nh Tre chi\u1ebfm t\u1ec9 l\u1ec7 r\u1ea5t th\u1ea5p (tr\u00ean d\u01b0\u1edbi 1 c\u00e2y \/ 1 g\u1ed1c m\u1eb9), ph\u1ea7n l\u1edbn s\u1ed1 m\u0103ng m\u1ecdc b\u1ecb ch\u1ebft thui \u0111i do thi\u1ebfu n\u01b0\u1edbc, thi\u1ebfu dinh d\u01b0\u1ee1ng ho\u1eb7c c\u00f4n tr\u00f9ng ph\u00e1 ho\u1ea1i.<\/p>\n

\u0110\u1ee3t m\u0103ng \u0111\u1ea7u th\u01b0\u1eddng l\u00e0 m\u0103ng kho\u1ebb, v\u00ec trong 1 th\u00e2n ng\u1ea7m c\u00e1c m\u1eaft ng\u1ee7 c\u00f9ng s\u1ed1ng trong \u0111i\u1ec1u ki\u1ec7n kh\u00ed h\u1eadu \u0111\u1ea5t \u0111ai nh\u01b0 nhau, nh\u01b0ng m\u1eaft ng\u1ee7 n\u00e0o c\u00f3 s\u1ee9c s\u1ed1ng m\u1ea1nh h\u01a1n s\u1ebd ph\u00e1t tri\u1ec3n th\u00e0nh m\u0103ng tr\u01b0\u1edbc, c\u00e1c m\u1eaft c\u00f3 s\u1ee9c s\u1ed1ng k\u00e9m h\u01a1n th\u00ec ph\u00e1t tri\u1ec3n th\u00e0nh m\u0103ng sau, th\u01b0\u1eddng l\u00e0 \u0111\u1ee3t m\u0103ng mu\u1ed9n, theo kinh nghi\u1ec7m c\u1ee7a nh\u00e2n d\u00e2n, \u0111\u1ee3t m\u0103ng mu\u1ed9n th\u01b0\u1eddng khai th\u00e1c l\u00e0m th\u1ef1c ph\u1ea9m.<\/p>\n

– Th\u1eddi gian \u0111\u1ecbnh h\u00ecnh c\u1ee7a m\u0103ng k\u1ec3 t\u1eeb khi m\u0103ng l\u00f3 ra kh\u1ecfi m\u1eb7t \u0111\u1ea5t \u0111\u1ebfn khi m\u0103ng c\u00f3 \u0111u\u00f4i \u00e9n ph\u1ee5 thu\u1ed9c v\u00e0o:<\/p>\n

+ \u0110\u01b0\u1eddng k\u00ednh c\u1ee7a m\u0103ng to th\u00ec th\u1eddi gian \u0111\u1ecbnh h\u00ecnh c\u1ee7a m\u0103ng d\u00e0i, c\u00f3 khi k\u00e9o d\u00e0i t\u1edbi 100 ng\u00e0y (Nguy\u1ec5n Th\u1ecb Phi Anh 1966-1968).<\/p>\n

+ Th\u1eddi ti\u1ebft: Th\u1eddi ti\u1ebft thu\u1eadn l\u1ee3i th\u00ec th\u1eddi gian \u0111\u1ecbnh h\u00ecnh ng\u1eafn.<\/p>\n

+ M\u1eadt \u0111\u1ed9: M\u1eadt \u0111\u1ed9 th\u01b0a th\u1eddi gian \u0111\u1ecbnh h\u00ecnh ng\u1eafn h\u01a1n m\u1eadt \u0111\u1ed9 tr\u1ed3ng d\u00e0y.<\/p>\n

Nh\u1eefng n\u0103m \u0111\u1ea7u c\u1ee7a r\u1eebng m\u1edbi tr\u1ed3ng, \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a m\u0103ng nh\u1ecf n\u00ean th\u1eddi gian \u0111\u1ecbnh h\u00ecnh ng\u1eafn (30 – 35 ng\u00e0y) m\u1ed9t b\u00fai c\u00f3 th\u1ec3 ph\u00e1t tri\u1ec3n 3 – 4 th\u1ebf h\u1ec7 c\u00e2y trong n\u0103m. Nh\u1eefng n\u0103m v\u1ec1 sau khi r\u1eebng kh\u00e9p t\u00e1n, h\u1ec7 r\u1ec5 \u0111an d\u00e0y \u0111\u1eb7c tr\u00ean l\u1edbp \u0111\u1ea5t m\u1eb7t, \u0111\u1ea5t r\u1eebng b\u1ecb kh\u00f4, m\u00f9a m\u01b0a m\u1edbi ra m\u0103ng, m\u0103ng c\u1ee7a nh\u1eefng n\u0103m n\u00e0y to h\u01a1n nh\u1eefng n\u0103m \u0111\u1ea7u khi r\u1eebng m\u1edbi tr\u1ed3ng. Th\u1eddi gian \u0111\u1ecbnh h\u00ecnh c\u1ee7a m\u0103ng k\u00e9o d\u00e0i h\u01a1n m\u1ed7i n\u0103m m\u1ed9t b\u00fai ch\u1ec9 ph\u00e1t tri\u1ec3n th\u00eam m\u1ed9t th\u1ebf h\u1ec7 c\u00e2y. D\u1ef1a v\u00e0o th\u1eddi gian \u0111\u1ecbnh h\u00ecnh c\u1ee7a m\u0103ng m\u00e0 ch\u00fang ta c\u00f3 bi\u1ec7n ph\u00e1p t\u00e1c \u0111\u1ed9ng h\u1ee3p l\u00fd \u0111\u1ec3 n\u00e2ng cao hi\u1ec7u su\u1ea5t c\u1ee7a r\u1eebng .<\/p>\n

Th\u1eddi gian ra m\u0103ng c\u1ee7a Tre g\u1ea7y v\u00e0 lu\u1ed3ng<\/em><\/p>\n\n\n\n\n\n\n
Lo\u00e0i<\/td>\nTh\u00e1ng 6<\/td>\nTh\u00e1ng 7<\/td>\nTh\u00e1ng 8<\/td>\nTh\u00e1ng 9<\/td>\nTh\u00e1ng 10<\/td>\n<\/tr>\n
M<\/td>\n%<\/td>\nM<\/td>\n%<\/td>\nM<\/td>\n%<\/td>\nM<\/td>\n%<\/td>\nM<\/td>\n%<\/td>\n<\/tr>\n
Tre g\u1ea7y<\/td>\n544<\/td>\n46<\/td>\n318<\/td>\n27<\/td>\n165<\/td>\n14<\/td>\n117<\/td>\n10<\/td>\n17<\/td>\n1<\/td>\n<\/tr>\n
Tre lu\u1ed3ng<\/td>\n720<\/td>\n38<\/td>\n629<\/td>\n33<\/td>\n148<\/td>\n7<\/td>\n196<\/td>\n10<\/td>\n176<\/td>\n9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

( M : S\u1ed1 m\u0103ng m\u1ecdc – t\u00ednh b\u1eb1ng c\u00e1i )<\/em><\/p>\n

Nh\u01b0 v\u1eady, th\u1eddi gian ra m\u0103ng c\u1ee7a hai lo\u00e0i Tre g\u1ea7y v\u00e0 lu\u1ed3ng t\u1eadp trung v\u00e0o th\u00e1ng 6,7 (Lu\u1ed3ng 71%, Tre g\u1ea7y 73%) v\u00e0 \u0111\u1ec1u t\u1eadp trung v\u00e0o th\u00e1ng m\u01b0a nhi\u1ec1u nh\u1ea5t, t\u1ed5ng l\u01b0\u1ee3ng m\u01b0a c\u1ee7a th\u00e1ng 5,6,7 l\u00e0 852mm chi\u1ebfm 53% l\u01b0\u1ee3ng m\u01b0a c\u1ee7a c\u1ea3 n\u0103m. Nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n c\u1ee7a 2 th\u00e1ng n\u00e0y c\u0169ng l\u1edbn nh\u1ea5t trong n\u0103m (280<\/sup>72 ).<\/p>\n

4. <\/strong>\u1ea3nh h\u01b0\u1edfng c\u1ee7a k\u00edch th\u01b0\u1edbc h\u1ed1 tr\u1ed3ng.<\/strong><\/p>\n

L\u00e0m \u0111\u1ea5t c\u1ee5c b\u1ed9 t\u1ee9c l\u00e0 l\u00e0m \u0111\u1ea5t theo h\u1ed1, v\u1edbi 4 lo\u1ea1i k\u00edch th\u01b0\u1edbc v\u00e0 c\u00f3 k\u1ebft qu\u1ea3 nh\u01b0 sau:<\/p>\n

\u1ea3nh h\u01b0\u1edfng c\u1ee7a k\u00edch th\u01b0\u1edbc h\u1ed1 t\u1edbi sinh tr\u01b0\u1edfng c\u1ee7a r\u1eebng tr\u1ed3ng<\/em><\/p>\n\n\n\n\n\n\n\n\n\n
Lo\u00e0i c\u00e2y<\/p>\n

K\u00edch<\/p>\n

th\u01b0\u1edbc h\u1ed1<\/td>\n

Lu\u1ed3ng<\/td>\nG\u1ea7y<\/td>\n<\/tr>\n
N\/b\u00fai<\/td>\nDbq (cm)<\/td>\nHbq(m)<\/td>\nN\/b\u00fai<\/td>\nDbq (cm)<\/td>\nHbq(m)<\/td>\n<\/tr>\n
( C\u00e2y)<\/td>\n( C\u00e2y)<\/td>\n<\/tr>\n
0,6 x 0,6 x 0,5m<\/td>\n7,2<\/td>\n3,62<\/td>\n3,03<\/td>\n3,35<\/td>\n4,07<\/td>\n3,76<\/td>\n<\/tr>\n
1 x 1 x 0,5 m<\/td>\n8,7<\/td>\n3,95<\/td>\n6,05<\/td>\n7,23<\/td>\n4,42<\/td>\n5,05<\/td>\n<\/tr>\n
1,5 x 1,5x 0,5m<\/td>\n10,3<\/td>\n4,49<\/td>\n5,81<\/td>\n6,67<\/td>\n4,13<\/td>\n4,40<\/td>\n<\/tr>\n
2 x 2 x 0,5 m<\/td>\n10,0<\/td>\n3,96<\/td>\n5,24<\/td>\n4,08<\/td>\n3,61<\/td>\n4,75<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

T\u1eeb s\u1ed1 li\u1ec7u tr\u00ean ch\u00fang t\u00f4i c\u00f3 nh\u1eadn x\u00e9t: K\u00edch th\u01b0\u1edbc h\u1ed1 tr\u1ed3ng \u1ea3nh h\u01b0\u1edfng r\u1ea5t l\u1edbn \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a r\u1eebng tr\u1ed3ng. C\u00e1c lo\u1ea1i k\u00edch th\u01b0\u1edbc c\u00f3 chi\u1ec1u d\u00e0i r\u1ed9ng: 1m, 1,5m, 2,0m, s\u00e2u 50 cm so v\u1edbi lo\u1ea1i k\u00edch th\u01b0\u1edbc tr\u1ed3ng b\u00ecnh th\u01b0\u1eddng (60cm x 60cm x50cm ) th\u00ec s\u1ed1 l\u01b0\u1ee3ng c\u00e2y b\u00ecnh qu\u00e2n tr\u00ean b\u00fai \u0111\u1ec1u g\u1ea5p t\u1eeb 1,2 \u0111\u1ebfn 1,8 l\u1ea7n .<\/p>\n

\u0110\u1ea5t tr\u1ed3ng \u0111\u1ec1u ph\u1ea3i cu\u1ed1c, l\u1ea5p tr\u01b0\u1edbc khi tr\u1ed3ng 1 th\u00e1ng; l\u1edbp \u0111\u1ea5t l\u1ea5p xu\u1ed1ng h\u1ed1 ph\u1ea3i l\u00e0 l\u1edbp \u0111\u1ea5t m\u1eb7t, l\u1ea5p 2\/3 h\u1ed1, \u0111\u1ea5t trong h\u1ed1 ph\u1ea3i \u0111\u01b0\u1ee3c x\u0103m nh\u1ecf, tr\u1ed9n \u0111\u1ec1u ph\u00e2n, \u0111\u1ed1i v\u1edbi ph\u00e2n chu\u1ed3ng m\u1ed7i h\u1ed1 b\u00f3n 10 kg \/h\u1ed1 ho\u1eb7c b\u00f3n l\u00f3t ph\u00e2n NPK 1kg\/h\u1ed1.<\/p>\n

5. <\/strong>\u1ea3nh h\u01b0\u1edfng c\u1ee7a b\u00f3n ph\u00e2n \u0111\u1ebfn n\u0103ng xu\u1ea5t r\u1eebng tr\u1ed3ng lu\u1ed3ng .<\/strong><\/p>\n

\u1ea3nh h\u01b0\u1edfng c\u1ee7a b\u00f3n ph\u00e2n \u0111\u1ebfn n\u0103ng xu\u1ea5t r\u1eebng tr\u1ed3ng lu\u1ed3ng<\/em><\/p>\n\n\n\n\n\n\n\n
\u00d4<\/p>\n

Ch\u1ec9 ti\u00eau<\/td>\n

I<\/td>\nII<\/td>\nIII<\/td>\n\u0110\u1ed1i ch\u1ee9ng<\/td>\n<\/tr>\n
T\u1ed5ng m\u0103ng m\u1ecdc<\/td>\n1139<\/td>\n996<\/td>\n1253<\/td>\n429<\/td>\n<\/tr>\n
T\u1ed5ng m\u0103ng ch\u1ebft<\/td>\n437<\/td>\n416<\/td>\n603<\/td>\n163<\/td>\n<\/tr>\n
T\u1ed5ng m\u0103ng ph\u00e1t tri\u1ec3n th\u00e0nh c\u00e2y<\/td>\n702<\/td>\n580<\/td>\n650<\/td>\n266<\/td>\n<\/tr>\n
N\u0103ng su\u1ea5t so v\u1edbi \u0111\u1ed1i ch\u1ee9ng<\/td>\n263,9<\/td>\n218,04<\/td>\n244,36<\/td>\n100<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u00f4ng th\u1ee9c I : b\u00f3n 1kg NPK\/ b\u00fai\/ n\u0103m<\/p>\n

C\u00f4ng th\u1ee9c II : b\u00f3n 2kg NPK\/ b\u00fai\/ n\u0103m<\/p>\n

C\u00f4ng th\u1ee9c III : b\u00f3n 3kg NPK\/ b\u00fai\/ n\u0103m<\/p>\n

V\u1ec1 n\u0103ng xu\u1ea5t c\u00e1c c\u00f4ng th\u1ee9c b\u00f3n ph\u00e2n \u0111\u1ec1u t\u0103ng t\u1eeb 2 \u0111\u1ebfn 2,5 l\u1ea7n so v\u1edbi c\u00f4ng th\u1ee9c kh\u00f4ng b\u00f3n ph\u00e2n.<\/p>\n

6. \u1ea3nh h\u01b0\u1edfng c\u1ee7a ph\u00e2n b\u00f3n \u0111\u1ebfn t\u1ef7 l\u1ec7 m\u0103ng ph\u00e1t tri\u1ec3n th\u00e0nh lu\u1ed3ng<\/strong><\/p>\n

\u1ea3nh<\/em>h\u01b0\u1edfng c\u1ee7a ph\u00e2n b\u00f3n \u0111\u1ebfn t\u1ef7 l\u1ec7 m\u0103ng ph\u00e1t tri\u1ec3n th\u00e0nh Lu\u1ed3ng<\/em><\/p>\n\n\n\n\n\n\n\n\n
c\u00f4ng th\u1ee9c<\/p>\n

Tr\u1ecb s\u1ed1 quan s\u00e1t<\/td>\n

\u0110VT<\/td>\nI<\/td>\nII<\/td>\nIII<\/td>\n\u0110\u1ed1i ch\u1ee9ng<\/td>\n<\/tr>\n
T\u1ed5ng m\u0103ng m\u1ecdc<\/td>\nC\u00e1i<\/td>\n4026<\/td>\n3574<\/td>\n4106<\/td>\n3300<\/td>\n<\/tr>\n
T\u1ed5ng m\u0103ng ch\u1eb7t<\/td>\nC\u00e1i<\/td>\n2246<\/td>\n2380<\/td>\n2672<\/td>\n2220<\/td>\n<\/tr>\n
T\u1ed5ng tr\u1ecdng l\u01b0\u1ee3ng<\/td>\nKg<\/td>\n1308<\/td>\n1238<\/td>\n1460<\/td>\n1232<\/td>\n<\/tr>\n
T\u1ed5ng m\u0103ng ch\u1ebft<\/td>\nC\u00e1i<\/td>\n666<\/td>\n334<\/td>\n580<\/td>\n846<\/td>\n<\/tr>\n
T\u1ed5ng m\u0103ng ph\u00e1t tri\u1ec3n th\u00e0nh Tre<\/td>\nC\u00e2y<\/td>\n1114<\/td>\n62%<\/td>\n860<\/td>\n59%<\/td>\n854<\/td>\n59%<\/td>\n234<\/td>\n21%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

T\u1eeb b\u1ea3ng tr\u00ean ch\u00fang t\u00f4i nh\u1eadn x\u00e9t :<\/p>\n

– \u0110\u1ed1i v\u1edbi r\u1eebng 4- 5 tu\u1ed5i l\u01b0\u1ee3ng m\u0103ng thu \u0111\u01b0\u1ee3c t\u1eeb 1,2 – 1,4 t\u1ea5n \/ha .<\/p>\n

– \u0110\u1ed1i v\u1edbi c\u00e2y \u1edf \u00f4 \u0111\u1ed1i ch\u1ee9ng: T\u1ef7 l\u1ec7 m\u0103ng ch\u1ebft nhi\u1ec1u , t\u1ef7 l\u1ec7 m\u0103ng ph\u00e1t tri\u1ec3n th\u00e0nh Tre r\u1ea5t th\u1ea5p (21 %) trong khi \u0111\u00f3 t\u1ef7 l\u1ec7 m\u0103ng ph\u00e1t tri\u1ec3n th\u00e0nh Tre \u1edf c\u00e1c c\u00f4ng th\u1ee9c I (62 %) ; II (72%) , III ( 59 % ) .<\/p>\n

7. <\/strong>\u1ea3nh h\u01b0\u1edfng c\u1ee7a ph\u00e2n b\u00f3n \u0111\u1ebfn s\u1ea3n l\u01b0\u1ee3ng m\u0103ng g\u1ea7y<\/strong><\/p>\n

\u1ea3nh<\/em>h\u01b0\u1edfng c\u1ee7a ph\u00e2n b\u00f3n \u0111\u1ebfn s\u1ea3n l\u01b0\u1ee3ng m\u0103ng g\u1ea7y<\/em><\/p>\n

( t\u00ednh cho 1 ha )<\/p>\n\n\n\n\n\n\n\n
c\u00f4ng th\u1ee9c<\/p>\n

Tr\u1ecb s\u1ed1 quan s\u00e1t<\/td>\n

\u0110VT<\/td>\nI<\/td>\nII<\/td>\nIII<\/td>\n\u0110\u1ed1i ch\u1ee9ng<\/td>\n<\/tr>\n
T\u1ed5ng m\u0103ng m\u1ecdc<\/td>\nC\u00e1i<\/td>\n2700<\/td>\n3158<\/td>\n3416<\/td>\n1600<\/td>\n<\/tr>\n
T\u1ed5ng m\u0103ng ch\u1eb7t<\/td>\nC\u00e1i<\/td>\n1374<\/td>\n1800<\/td>\n2040<\/td>\n1350<\/td>\n<\/tr>\n
T\u1ed5ng tr\u1ecdng l\u01b0\u1ee3ng<\/td>\nKg<\/td>\n824<\/td>\n1044<\/td>\n1108<\/td>\n438<\/td>\n<\/tr>\n
% so v\u1edbi \u0111\u1ed1i ch\u1ee9ng<\/td>\nC\u00e1i<\/td>\n188%<\/td>\n238%<\/td>\n252%<\/td>\n100%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u0110\u1ed1i v\u1edbi r\u1eebng g\u1ea7y 4 -5 tu\u1ed5i \u1ea3nh h\u01b0\u1edfng c\u1ee7a ph\u00e2n b\u00f3n \u0111\u1ebfn s\u1ea3n l\u01b0\u1ee3ng m\u0103ng thu \u0111\u01b0\u1ee3c tr\u00ean m\u1ed9t ha r\u1ea5t r\u00f5 n\u00e9t, c\u00f4ng th\u1ee9c b\u00f3n ph\u00e2n n\u0103ng su\u1ea5t so v\u1edbi c\u00f4ng th\u1ee9c \u0111\u1ed1i ch\u1ee9ng (I: 188%, II: 238 %, III: 252 %) .<\/p>\n

– Tr\u1ecdng l\u01b0\u1ee3ng b\u00ecnh qu\u00e2n c\u1ee7a m\u0103ng gi\u1eefa c\u00e1c c\u00f4ng th\u1ee9c c\u0169ng kh\u00e1c nhau:<\/p>\n

C\u00f4ng th\u1ee9c \u0110\/C = 0,32 kg\/ m\u0103ng; c\u00f4ng th\u1ee9c I = 0,59 kg \/m\u0103ng, ct II = 0,58 kg \/ m\u0103ng; ct III = 0,54 kg \/m\u0103ng.<\/p>\n

Nh\u01b0 v\u1eady, mu\u1ed1n tr\u1ed3ng Tre \u0111\u1ec3 l\u1ea5y c\u00e2y hay \u0111\u1ec3 l\u1ea5y m\u0103ng c\u00f3 n\u0103ng su\u1ea5t th\u00ec \u0111\u1ec1u ph\u1ea3i tr\u1ed3ng th\u00e2m canh . V\u1ec1 s\u1ea3n l\u01b0\u1ee3ng m\u0103ng t\u0103ng tr\u00ean 2 l\u1ea7n, v\u1ec1 m\u0103ng ph\u00e1t tri\u1ec3n th\u00e0nh Tre t\u0103ng h\u01a1n 5 l\u1ea7n so v\u1edbi \u0111\u1ed1i ch\u1ee9ng .<\/p>\n

* \u0110\u00e0o 10 g\u1ed1c Tre \u0111\u00e3 khai th\u00e1c m\u0103ng s\u1ed1 li\u1ec7u thu \u0111\u01b0\u1ee3c nh\u01b0 sau<\/p>\n

\u1ea3nh<\/em>h\u01b0\u1edfng c\u1ee7a vi\u1ec7c khai th\u00e1c m\u0103ng \u0111\u1ebfn vi\u1ec7c ra m\u0103ng c\u1ee7a g\u1ed1c m\u1eb9<\/em><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
TT<\/td>\nT\u1ed5ng s\u1ed1 m\u1eaft tr\u00ean g\u1ed1c m\u1eb9<\/td>\nS\u1ed1 m\u1eaft ra m\u0103ng<\/td>\nS\u1ed1 m\u1eaft kh\u00f4ng ra m\u0103ng<\/td>\n<\/tr>\n
1<\/td>\n5<\/td>\n5<\/td>\n0<\/td>\n<\/tr>\n
2<\/td>\n6<\/td>\n5<\/td>\n1<\/td>\n<\/tr>\n
3<\/td>\n7<\/td>\n6<\/td>\n1<\/td>\n<\/tr>\n
4<\/td>\n6<\/td>\n6<\/td>\n0<\/td>\n<\/tr>\n
5<\/td>\n6<\/td>\n6<\/td>\n0<\/td>\n<\/tr>\n
6<\/td>\n5<\/td>\n5<\/td>\n0<\/td>\n<\/tr>\n
7<\/td>\n6<\/td>\n5<\/td>\n1<\/td>\n<\/tr>\n
8<\/td>\n5<\/td>\n5<\/td>\n0<\/td>\n<\/tr>\n
9<\/td>\n7<\/td>\n6<\/td>\n1<\/td>\n<\/tr>\n
10<\/td>\n4<\/td>\n4<\/td>\n0<\/td>\n<\/tr>\n
T\u1ed5ng<\/td>\n57<\/td>\n53( 93%)<\/td>\n4( 7%)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Nh\u1eadn x\u00e9t: – C\u00e1c c\u00f4ng th\u1ee9c khai th\u00e1c m\u0103ng ch\u00fang t\u00f4i th\u1ea5y \u0111\u00e3 k\u00edch th\u00edch 100% s\u1ed1 m\u1eaft ng\u1ee7 ra m\u0103ng t\u1ec9 l\u1ec7 chi\u1ebfm 93% S\u1ed1 m\u1eaft c\u00f2n l\u1ea1i kh\u00f4ng th\u00e0nh m\u0103ng l\u00e0 do b\u1ecb s\u00e2u ph\u00e1, b\u1ecb th\u1ed1i.<\/p>\n

8. H\u00e0m l\u01b0\u1ee3ng m\u1ed9t s\u1ed1 ch\u1ea5t dinh d\u01b0\u1ee1ng c\u1ee7a m\u1ed9t s\u1ed1 lo\u00e0i Tre<\/strong><\/p>\n

H\u00e0m l\u01b0\u1ee3ng m\u1ed9t s\u1ed1 ch\u1ea5t dinh d\u01b0\u1ee1ng ch\u1ee7 y\u1ebfu (t\u00ednh theo % ch\u1ea5t kh\u00f4)<\/em><\/p>\n\n\n\n\n\n\n\n
S\u1ed1 TT<\/td>\nT\u00ean Tre<\/td>\n\u0110\u01b0\u1eddng t\u1ed5ngs\u1ed1(%)<\/td>\n\u0110\u1ea1m(N)<\/p>\n

t\u1ed5ngs\u1ed1%<\/td>\n

Pr\u00f4 t\u00edt<\/p>\n

(%)<\/td>\n

A x\u00edtamin<\/td>\nXenlul\u00f4ra<\/td>\nVitaminC<\/td>\n<\/tr>\n
1<\/td>\nLu\u1ed3ng<\/td>\n20,70<\/td>\n3,10<\/td>\n19,37<\/td>\n2,10<\/td>\n28,00<\/td>\n167,20<\/td>\n<\/tr>\n
2<\/td>\nG\u1ea7y<\/td>\n25,50<\/td>\n3,80<\/td>\n23,75<\/td>\n2,60<\/td>\n21,00<\/td>\n105,60<\/td>\n<\/tr>\n
3<\/td>\nTre t\u00e0u<\/td>\n24,30<\/td>\n3,60<\/td>\n22,50<\/td>\n2,40<\/td>\n20,00<\/td>\n154,00<\/td>\n<\/tr>\n
4<\/td>\nM\u1ea1nh t\u00f4ng<\/td>\n32,50<\/td>\n3,80<\/td>\n23,75<\/td>\n2,60<\/td>\n23,00<\/td>\n96,80<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

B\u1ea3ng tr\u00ean cho th\u1ea5y: Tre g\u1ea7y c\u0169ng l\u00e0 c\u00e2y c\u00f3 h\u00e0m l\u01b0\u1ee3ng dinh d\u01b0\u1ee1ng kh\u00e1 cao, c\u00f3 th\u1ec3 x\u1ebfp v\u00e0o c\u00e2y tr\u1ed3ng \u0111\u1ec3 l\u1ea5y m\u0103ng nh\u01b0: Tre t\u00e0u, M\u1ea1nh T\u00f4ng, Tre \u0110\u00e0i Loan.<\/p>\n

IV. K\u1ebft lu\u1eadn v\u00e0 th\u1ea3o lu\u1eadn<\/p>\n

Sau 5 n\u0103m nghi\u00ean c\u1ee9u ch\u00fang t\u00f4i c\u00f3 k\u1ebft lu\u1eadn sau:<\/p>\n

– Tre g\u1ea7y v\u00e0 lu\u1ed3ng \u0111\u1ec1u l\u00e0 lo\u00e0i m\u1ecdc nhanh, m\u0103ng \u0103n ngon, s\u1ea3n l\u01b0\u1ee3ng m\u0103ng t\u1eeb n\u0103m th\u1ee9 3 tr\u1edf \u0111i \u0111\u1ea1t tr\u00ean 1t\u1ea5n \/ ha\/ n\u0103m.<\/p>\n

– Hai lo\u00e0i Tre n\u00e0y c\u00f3 th\u1ec3 t\u1ea1o gi\u1ed1ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p chi\u1ebft c\u00e0nh c\u00f3 b\u1ecdc Nilon.<\/p>\n

– K\u00edch th\u01b0\u1edbc h\u1ed1 tr\u1ed3ng r\u1ed9ng tr\u00ean 1m \u0111\u1ec1u cho n\u0103ng su\u1ea5t g\u1ea5p 2 l\u1ea7n tr\u1ed3ng b\u00ecnh th\u01b0\u1eddng.<\/p>\n

– L\u01b0\u1ee3ng ph\u00e2n b\u00f3n: N = 2,9kg, P = 2 kg, K = 2kg, ph\u00e2n chu\u1ed3ng hoai 22,5kg \/b\u00fai\/ n\u0103m, chia l\u00e0m 6 l\u1ea7n b\u00f3n\/ n\u0103m.<\/p>\n

– D\u1ee5ng c\u1ee5 khai th\u00e1c m\u0103ng ph\u1ea3i s\u1eafc b\u00e9n, v\u1ecb tr\u00ed c\u1eaft m\u0103ng gi\u00e1p ph\u00eda tr\u00ean c\u1ee7a th\u00e2n ng\u1ea7m.<\/p>\n

– Chi\u1ec1u cao m\u0103ng khai th\u00e1c t\u1eeb 20 – 30cm.<\/p>\n

Summary: <\/em><\/strong>This research has been conducted with 2 bamboo species: Dendrocalamus sp. and Dendrocalmus membranaceus <\/em><\/p>\n

– Propagation of these two species can be done by branch layering with nylon wrapping.<\/p>\n

– Planting hole with size 1m x 1m x 0.5m gives productivity doubled as compared with ordinary size.<\/p>\n

– Fertilizer application: N 2.9kg; P 2kg; K 2kg decomposed farmyard manure 22.5kg\/ clump\/ year, devided into 6 times of application in a year.<\/p>\n

– Tool for culm harvesting must be sharp, the shoots are cut close to the rhizome surface, height of harvested shoots is 2- 30cm.<\/p>\n

T\u00e0i li\u1ec7u tham kh\u1ea3o<\/strong><\/p>\n

1. Tr\u1ea7n \u0110\u00ecnh \u0110\u1ea1i,1967. Ph\u00e2n lo\u1ea1i Tre tr\u00fac theo h\u00ecnh th\u00e1i.<\/p>\n

2. Nguy\u1ec5n Th\u1ecb Phi Anh,1967. K\u1ef9 thu\u1eadt tr\u1ed3ng Tre di\u1ec5n \u1edf C\u1ea7u Hai.<\/p>\n

3. Ho\u00e0ng Xu\u00e2n T\u00fd,1971. \u1ea3nh h\u01b0\u1edfng c\u1ee7a tr\u1ed3ng Tre thu\u1ea7n lo\u1ea1i \u0111\u1ebfn \u0111\u1ed9 ph\u00ec c\u1ee7a \u0111\u1ea5t.<\/p>\n

4. Nguy\u1ec5n Ng\u1ecdc B\u00ecnh (1963 – 1964). \u0110\u1eb7c \u0111i\u1ec3m \u0111\u1ea5t tr\u1ed3ng lu\u1ed3ng.<\/p>\n

5. Ph\u1ea1m V\u0103n T\u00edch (1965 – 1968). Nghi\u00ean c\u1ee9u k\u1ef9 thu\u1eadt tr\u1ed3ng lu\u1ed3ng t\u1ea1i Thanh Ho\u00e1.<\/p>\n

6. Tr\u1ea7n Nguy\u00ean Gi\u1ea3ng v\u00e0 L\u01b0u Ph\u1ea1m Ho\u00e0nh (1976 – 1977 ). Nghi\u00ean c\u1ee9u k\u1ef9 thu\u1eadt tr\u1ed3ng v\u00e0 kinh doanh r\u1eebng lu\u1ed3ng.<\/p>\n

7. \u0110o\u00e0n Ch\u01b0\u01a1ng v\u00e0 L\u00ea Quang Li\u00ean (1976 – 1977). \u0110\u1eb7c \u0111i\u1ec3m sinh v\u1eadt h\u1ecdc v\u00e0 bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u1eeb s\u00e2u v\u00f2i voi h\u1ea1i m\u0103ng.<\/p>\n

8. Ng\u00f4 Quang \u0110\u00ea,1994. G\u00e2y tr\u1ed3ng Tre tr\u00fac.<\/p>\n

9. L\u00ea Quang Li\u00ean (1986 – 1990). Nghi\u00ean c\u1ee9u di th\u1ef1c c\u00e2y lu\u1ed3ng Thanh Ho\u00e1 ra v\u00f9ng Trung t\u00e2m.<\/p>\n

10. L\u00ea Quang Li\u00ean,1994. T\u00e0i li\u1ec7u t\u1eadp hu\u1ea5n k\u1ef9 thu\u1eadt tr\u1ed3ng lu\u1ed3ng.<\/p>\n","protected":false},"excerpt":{"rendered":"

Trên th\u1ebf gi\u1edbi có t\u1edbi 1250 loài Tre trúc thu\u1ed9c 75 chi khác nhau, chúng phân b\u1ed1 \u1edf h\u1ea7u h\u1ebft các vùng khí h\u1eadu (nhi\u1ec7t \u0111\u1edbi, ôn \u0111\u1edbi, á nhi\u1ec7t \u0111\u1edbi); t\u1eeb \u0111\u1ed9 cao ngang m\u1ef1c n\u01b0\u1edbc bi\u1ec3n \u0111\u1ebfn \u0111\u1ed9 cao 4000m nh\u01b0 \u1edf s\u01b0\u1eddn dãy núi Hymalaya. Ph\u1ea7n l\u1edbn các loài Tre trúc quan tr\u1ecdng \u0111\u1ec1u phân b\u1ed1 trên di\u1ec7n tích r\u1ed9ng \u1edf các n\u01b0\u1edbc châu á . Tre trúc g\u1eafn bó m\u1eadt thi\u1ebft v\u1edbi cu\u1ed9c s\u1ed1ng c\u1ee7a ng\u01b0\u1eddi nông dân Vi\u1ec7t Nam b\u1edfi r\u1ea5t nhi\u1ec1u công d\u1ee5ng c\u1ee7a nó.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[15,18],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8602"}],"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=8602"}],"version-history":[{"count":2,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8602\/revisions"}],"predecessor-version":[{"id":19299,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8602\/revisions\/19299"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=8602"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=8602"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=8602"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}