{"id":16546,"date":"2016-11-29T11:07:16","date_gmt":"2016-11-29T04:07:16","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/?p=16546"},"modified":"2016-11-29T11:07:16","modified_gmt":"2016-11-29T04:07:16","slug":"phat-trien-rung-trong-go-lon-bao-nong-nghiep-viet-nam","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/phat-trien-rung-trong-go-lon-bao-nong-nghiep-viet-nam\/","title":{"rendered":"Ph\u00e1t tri\u1ec3n r\u1eebng tr\u1ed3ng g\u1ed7 l\u1edbn – B\u00e1o N\u00f4ng nghi\u1ec7p Vi\u1ec7t Nam"},"content":{"rendered":"

Trung t\u00e2m Khoa h\u1ecdc L\u00e2m nghi\u1ec7p B\u1eafc Trung b\u1ed9 (Vi\u1ec7n Khoa h\u1ecdc l\u00e2m nghi\u1ec7p VN) \u0111\u00e3 tri\u1ec3n khai th\u00e0nh c\u00f4ng m\u00f4 h\u00ecnh r\u1eebng g\u1ed7 l\u1edbn v\u1edbi gi\u1ed1ng c\u00e2y keo lai. Sau 13,5 n\u0103m, tr\u1eef l\u01b0\u1ee3ng g\u1ed7 \u0111\u1ea1t t\u1eeb 168 – 219 m3 g\u1ed7\/ha, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng tr\u1ecb gi\u00e1 h\u00e0ng tr\u0103m tri\u1ec7u \u0111\u1ed3ng\/ha.<\/p>\n

Tri\u1ec3n v\u1ecdng keo lai <\/b><\/p>\n

TS Ph\u1ea1m Xu\u00e2n \u0110\u1ec9nh, Gi\u00e1m \u0111\u1ed1c Trung t\u00e2m Khoa h\u1ecdc L\u00e2m nghi\u1ec7p B\u1eafc Trung b\u1ed9 cho bi\u1ebft, keo lai l\u00e0 m\u1ed9t trong nh\u1eefng lo\u1ea1i c\u00e2y tr\u1ed3ng r\u1eebng ch\u1ee7 l\u1ef1c, nh\u1eb1m cung c\u1ea5p nguy\u00ean li\u1ec7u g\u1ed7 ph\u1ee5c v\u1ee5 c\u00f4ng nghi\u1ec7p ch\u1ebf bi\u1ebfn b\u1ed9t gi\u1ea5y v\u00e0 d\u0103m m\u1ea3nh xu\u1ea5t kh\u1ea9u. Tuy nhi\u00ean, ng\u01b0\u1eddi d\u00e2n v\u1eabn th\u00edch tr\u1ed3ng r\u1eebng g\u1ed7 nh\u1ecf \u0111\u1ec3 ph\u1ee5c v\u1ee5 nhu c\u1ea7u kinh t\u1ebf tr\u01b0\u1edbc m\u1eaft n\u00ean r\u1eebng tr\u1ed3ng g\u1ed7 l\u1edbn ch\u01b0a ph\u1ee5c v\u1ee5 \u0111\u01b0\u1ee3c nhi\u1ec1u cho nhu c\u1ea7u s\u1ea3n xu\u1ea5t c\u00e1c m\u1eb7t h\u00e0ng xu\u1ea5t kh\u1ea9u trong n\u01b0\u1edbc ng\u00e0y c\u00e0ng t\u0103ng.<\/p>\n

\"16-11-29_rung-go-lon\"<\/a>R\u1eebng keo lai c\u1ee7a Trung t\u00e2m Khoa h\u1ecdc L\u00e2m nghi\u1ec7p B\u1eafc Trung b<\/em>\u1ed9<\/p>\n

Trong khi \u0111\u00f3, m\u1ed9t trong nh\u1eefng n\u1ed9i dung c\u01a1 b\u1ea3n c\u1ee7a \u0111\u1ec1 \u00e1n T\u00e1i c\u01a1 c\u1ea5u ng\u00e0nh L\u00e2m nghi\u1ec7p \u0111\u1ebfn n\u0103m 2020 l\u00e0 ph\u1ea3i x\u00e2y d\u1ef1ng v\u00f9ng nguy\u00ean li\u1ec7u g\u1ed7 l\u1edbn t\u1eadp trung v\u1edbi di\u1ec7n t\u00edch 1,2 tri\u1ec7u ha. \u0110\u1ed3ng th\u1eddi h\u1ea1n ch\u1ebf khai th\u00e1c r\u1eebng non, chuy\u1ec3n h\u00f3a r\u1eebng tr\u1ed3ng cung c\u1ea5p g\u1ed7 nh\u1ecf th\u00e0nh cung c\u1ea5p r\u1eebng g\u1ed7 l\u1edbn.<\/p>\n

\u0110\u1ee9ng tr\u01b0\u1edbc t\u00ecnh h\u00ecnh n\u00e0y, Trung t\u00e2m Khoa h\u1ecdc L\u00e2m nghi\u1ec7p B\u1eafc Trung b\u1ed9 ti\u1ebfn h\u00e0nh th\u1ef1c nghi\u1ec7m m\u00f4 h\u00ecnh tr\u1ed3ng r\u1eebng g\u1ed7 l\u1edbn v\u1edbi gi\u1ed1ng c\u00e2y keo lai t\u1ea1i huy\u1ec7n Cam L\u1ed9. Gi\u1ed1ng keo lai s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c t\u1ea1o b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p gi\u00e2m hom t\u1eeb c\u00e1c gi\u1ed1ng ti\u1ebfn b\u1ed9 k\u1ef7 thu\u1eadt \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn. Ph\u01b0\u01a1ng th\u1ee9c tr\u1ed3ng r\u1eebng l\u00e0 thu\u1ea7n lo\u00e0i. X\u1eed l\u00fd th\u1ef1c b\u00ec v\u00e0 l\u00e0m \u0111\u1ea5t b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p c\u01a1 gi\u1edbi, c\u00e0y l\u1eadt \u0111\u1ea5t to\u00e0n di\u1ec7n s\u00e2u 20 – 25cm, c\u00e0y r\u1ea1ch h\u00e0ng b\u1eb1ng c\u00e0y ng\u1ea7m s\u00e2u 40cm, cu\u1ed1c h\u1ed1 th\u1ee7 c\u00f4ng 30 x 30cm. M\u1eadt \u0111\u1ed9 tr\u1ed3ng 1.330 c\u00e2y; 1.660 c\u00e2y; 2.500 c\u00e2y\/ha, b\u00f3n ph\u00e2n \u0111\u1ed3ng nh\u1ea5t cho c\u00e1c c\u00f4ng th\u1ee9c 200gr NPK k\u1ebft h\u1ee3p 100gr ph\u00e2n vi sinh s\u00f4ng Gianh.<\/p>\n

Sau 2 n\u0103m tr\u1ed3ng t\u1ef7 l\u1ec7 c\u00e2y r\u1eebng s\u1ed1ng \u1edf c\u00e1c c\u00f4ng th\u1ee9c, m\u1eadt \u0111\u1ed9 kh\u00e1c nhau \u0111\u1ec1u gi\u1ea3m nh\u01b0ng kh\u00f4ng \u0111\u00e1ng k\u1ec3. T\u1ef7 l\u1ec7 s\u1ed1ng \u0111\u1ea1t cao v\u00e0 dao \u0111\u1ed9ng t\u1eeb 91,67 – 93,25%. Tuy nhi\u00ean, sau 9,5 n\u0103m v\u00e0 13,5 n\u0103m tr\u1ed3ng, t\u1ef7 l\u1ec7 s\u1ed1ng t\u1ea5t c\u1ea3 c\u00e1c c\u00f4ng th\u1ee9c \u0111\u1ec1u gi\u1ea3m m\u1ea1nh, gi\u1ea3m m\u1ea1nh nh\u1ea5t \u1edf m\u1eadt \u0111\u1ed9 2.500 c\u00e2y. T\u1ef7 l\u1ec7 s\u1ed1ng gi\u1ea3m m\u1ea1nh kh\u00f4ng ph\u1ea3i do keo lai kh\u00f4ng th\u00edch h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n ho\u00e0n c\u1ea3nh n\u01a1i tr\u1ed3ng, m\u00e0 do c\u1ea1nh tranh nhau v\u1ec1 kh\u00f4ng gian sinh d\u01b0\u1ee1ng gi\u1eefa c\u00e1c c\u00e1 th\u1ec3 \u0111\u1ebfn m\u1ee9c gay g\u1eaft d\u1eabn \u0111\u1ebfn t\u1ec9a th\u01b0a t\u1ef1 nhi\u00ean. Ngo\u00e0i ra do \u1ea3nh h\u01b0\u1edfng c\u1ee7a gi\u00f3 b\u00e3o \u0111\u00e3 l\u00e0m g\u00e3y \u0111\u1ed5 m\u1ed9t s\u1ed1 c\u00e2y l\u1edbn c\u0169ng l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n kh\u00e1ch quan \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ef7 l\u1ec7 s\u1ed1ng.<\/p>\n

M\u1eadt \u0111\u1ed9 625 – 833 c\u00e2y\/ha l\u00e0 ph\u00f9 h\u1ee3p Ph\u00e2n t\u00edch c\u00e1c ch\u1ec9 s\u1ed1 th\u00ed nghi\u1ec7m, \u00f4ng Ph\u1ea1m Xu\u00e2n \u0110\u1ec9nh cho bi\u1ebft n\u1ebfu tr\u1ed3ng r\u1eebng keo lai v\u1edbi m\u1ee5c ti\u00eau kinh doanh g\u1ed7 l\u1edbn m\u00e0 kh\u00f4ng t\u1ec9a th\u01b0a nh\u00e2n t\u1ea1o th\u00ec n\u00ean tr\u1ed3ng m\u1eadt \u0111\u1ed9 625 – 833 c\u00e2y l\u00e0 ph\u00f9 h\u1ee3p. C\u1ef1 ly tr\u1ed3ng c\u00f3 th\u1ec3 l\u00e0 4x4m ho\u1eb7c 4x3m. Keo lai sinh tr\u01b0\u1edfng v\u00e0 t\u0103ng tr\u01b0\u1edfng nhanh \u1edf giai \u0111o\u1ea1n r\u1eebng keo 2 tu\u1ed5i.<\/p>\n

N\u1ebfu kinh doanh g\u1ed7 l\u1edbn k\u1ebft h\u1ee3p v\u1edbi g\u1ed7 nh\u1ecf c\u1ea7n t\u1ec9a th\u01b0a nh\u00e2n t\u1ea1o \u1edf giai \u0111o\u1ea1n 4 \u0111\u1ebfn 5 n\u0103m tu\u1ed5i th\u00ec tr\u1ed3ng m\u1eadt \u0111\u1ed9 1.330 – 1.660 c\u00e2y l\u00e0 ph\u00f9 h\u1ee3p. M\u1eadt \u0111\u1ed9 \u0111\u1ec3 l\u1ea1i sau t\u1ec9a th\u01b0a c\u00f2n 550 – 800 c\u00e2y. N\u1ebfu kh\u00f4ng t\u1ec9a th\u01b0a, khi \u0111\u1ebfn th\u1eddi \u0111i\u1ec3m 9,5 n\u0103m tu\u1ed5i r\u1eebng tr\u1ed3ng c\u0169ng s\u1ebd t\u1ef1 t\u1ec9a th\u01b0a t\u1ef1 nhi\u00ean, ch\u1ec9 c\u00f2n 50 – 60% s\u1ed1 l\u01b0\u1ee3ng c\u00e2y v\u00e0 \u0111\u1ebfn 13,5 tu\u1ed5i ch\u1ec9 c\u00f2n l\u1ea1i 31 – 47% s\u1ed1 c\u00e2y \u0111\u00e3 tr\u1ed3ng.<\/p>\n

Theo \u00f4ng \u0110\u1ec9nh, sau khi tr\u1ed3ng keo \u0111\u1ebfn 9,5 n\u0103m, n\u0103ng su\u1ea5t g\u1ed7 trung b\u00ecnh h\u00e0ng n\u0103m dao \u0111\u1ed9ng t\u1eeb 16,87 – 22,61 m3\/ha\/n\u0103m. Tr\u1eef l\u01b0\u1ee3ng g\u1ed7 c\u00e2y \u0111\u1ee9ng gi\u1eefa c\u00e1c c\u00f4ng th\u1ee9c kh\u00e1c nhau v\u00e0 dao \u0111\u1ed9ng t\u1eeb 160 – 214 m3\/ha.<\/p>\n

Sau 13,5 n\u0103m tu\u1ed5i, tr\u1eef l\u01b0\u1ee3ng g\u1ed7 \u0111\u1ea1t t\u1eeb 168,10 – 219,54 m3\/ha. V\u1edbi tr\u1eef l\u01b0\u1ee3ng v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng nh\u01b0 v\u1eady b\u00e1n g\u1ed7 t\u1eeb r\u1eebng tr\u1ed3ng g\u1ed7 l\u1edbn thu v\u1ec1 h\u01a1n 200 tri\u1ec7u \u0111\u1ed3ng\/ha. Sau 13,5 n\u0103m tu\u1ed5i, m\u1ee9c \u0111\u1ed9 ph\u00e2n h\u00f3a c\u00e2y theo \u0111\u01b0\u1eddng k\u00ednh r\u00f5 r\u00e0ng h\u01a1n. S\u1ed1 c\u00e2y \u0111\u1ea1t ti\u00eau chu\u1ea9n g\u1ed7 l\u1edbn (\u0111\u01b0\u1eddng k\u00ednh l\u1edbn h\u01a1n 18cm) t\u0103ng m\u1ea1nh, chi\u1ebfm t\u1ef7 l\u1ec7 44 \u0111\u1ebfn 53%. Giai \u0111o\u1ea1n 9,5 n\u0103m tu\u1ed5i c\u00e2y t\u1eadp trung \u1edf \u0111\u01b0\u1eddng k\u00ednh 15 – 18cm. Nh\u01b0ng sau 13,5 n\u0103m tu\u1ed5i r\u1eebng \u0111\u00e3 gi\u00e0 h\u01a1n n\u00ean s\u1ed1 c\u00e2y \u0111\u1ea1t t\u1ef7 l\u1ec7 cung c\u1ea5p g\u1ed7 l\u1edbn \u0111\u1ea1t t\u1eeb 48 – 58%. H\u01a1n n\u1eefa, \u0111\u00e2y l\u00e0 giai \u0111o\u1ea1n xu\u1ea5t hi\u1ec7n c\u00e1c c\u00e2y to, c\u00f3 \u0111\u01b0\u1eddng k\u00ednh tr\u00ean 25cm v\u1edbi t\u1ef7 l\u1ec7 2 – 7%.<\/p>\n

T\u1eeb nh\u1eefng nghi\u00ean c\u1ee9u qua m\u00f4 h\u00ecnh th\u1ef1c nghi\u1ec7m, TS Ph\u1ea1m Xu\u00e2n \u0110\u1ec9nh ki\u1ebfn ngh\u1ecb, tr\u1ed3ng r\u1eebng kinh doanh g\u1ed7 l\u1edbn c\u1ea7n ph\u1ea3i duy tr\u00ec r\u1eebng tr\u1ed3ng tr\u00ean 10 n\u0103m, t\u1ed1t nh\u1ea5t t\u1eeb 13 – 15 n\u0103m. N\u1ebfu k\u1ebft h\u1ee3p kinh doanh g\u1ed7 nh\u1ecf v\u1edbi g\u1ed7 l\u1edbn th\u00ec m\u1eadt \u0111\u1ed9 tr\u1ed3ng ban \u0111\u1ea7u t\u1eeb 1.330 – 1.660 c\u00e2y\/ha. V\u1edbi m\u1eadt \u0111\u1ed9 n\u00e0y c\u1ea7n ph\u1ea3i \u00e1p d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt t\u1ec9a th\u01b0a v\u00e0o giai \u0111o\u1ea1n 4 – 5 n\u0103m tu\u1ed5i, m\u1eadt \u0111\u1ed9 \u0111\u1ec3 l\u1ea1i 550 – 750 c\u00e2y\/ha. N\u1ebfu ch\u1ec9 tr\u1ed3ng r\u1eebng kinh doanh g\u1ed7 l\u1edbn n\u00ean tr\u1ed3ng m\u1eadt \u0111\u1ed9 t\u1eeb 625 – 833 c\u00e2y (c\u1ef1 ly 4 x 4m ho\u1eb7c 4 x 3m), nh\u01b0ng c\u1ea7n k\u1ebft h\u1ee3p ph\u01b0\u01a1ng th\u1ee9c n\u00f4ng l\u00e2m k\u1ebft h\u1ee3p trong n\u0103m \u0111\u1ea7u \u0111\u1ec3 tr\u00e1nh l\u00e3ng ph\u00ed \u0111\u1ea5t v\u00e0 kh\u1ed1ng ch\u1ebf c\u1ecf d\u1ea1i.<\/p>\n

Hi\u1ec7n t\u1ea1i m\u00f4 h\u00ecnh tr\u1ed3ng r\u1eebng g\u1ed7 l\u1edbn c\u1ee7a Trung t\u00e2m Khoa h\u1ecdc L\u00e2m nghi\u1ec7p B\u1eafc Trung b\u1ed9 \u0111\u01b0\u1ee3c nhi\u1ec1u \u0111\u1ecba ph\u01b0\u01a1ng \u0111\u1ebfn nghi\u00ean c\u1ee9u h\u1ecdc t\u1eadp kinh nghi\u1ec7m. \u00d4ng H\u00e0 S\u1ef9 \u0110\u1ed3ng, Ph\u00f3 Ch\u1ee7 t\u1ecbch UBND t\u1ec9nh Qu\u1ea3ng Tr\u1ecb \u0111\u00e1nh gi\u00e1 cao m\u00f4 h\u00ecnh n\u00e0y v\u00e0 cho bi\u1ebft s\u1ebd v\u1eadn \u0111\u1ed9ng ng\u01b0\u1eddi tr\u1ed3ng r\u1eebng \u00e1p d\u1ee5ng m\u00f4 h\u00ecnh c\u1ee7a trung t\u00e2m \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c di\u1ec7n t\u00edch r\u1eebng tr\u1ed3ng g\u1ed7 l\u1edbn nh\u01b0 trong \u0111\u1ec1 \u00e1n t\u00e1i c\u01a1 c\u1ea5u ng\u00e0nh l\u00e2m nghi\u1ec7p c\u1ee7a Qu\u1ea3ng Tr\u1ecb.<\/p>\n

Th\u1ef1c t\u1ebf, m\u1ed7i n\u0103m t\u1ec9nh Qu\u1ea3ng Tr\u1ecb tr\u1ed3ng m\u1edbi g\u1ea7n 6.000ha r\u1eebng s\u1ea3n xu\u1ea5t v\u00e0 1.000ha r\u1eebng ph\u00f2ng h\u1ed9. Theo t\u00ednh to\u00e1n m\u1ed7i n\u0103m s\u1ea3n l\u01b0\u1ee3ng g\u1ed7 khai th\u00e1c t\u1eeb r\u1eebng tr\u1ed3ng Qu\u1ea3ng Tr\u1ecb \u0111\u1ea1t g\u1ea7n 500 ng\u00e0n m3, g\u1ed7 nguy\u00ean li\u1ec7u ch\u1ee7 y\u1ebfu b\u00e1n cho nh\u00e0 m\u00e1y g\u1ed7 MDF tr\u00ean \u0111\u1ecba b\u00e0n v\u00e0 l\u00e0m g\u1ed7 d\u0103m xu\u1ea5t kh\u1ea9u, ch\u01b0a c\u00f3 g\u1ed7 gi\u00e1 tr\u1ecb cao… V\u00ec v\u1eady, ch\u1ec9 c\u00f3 ph\u00e1t tri\u1ec3n r\u1eebng tr\u1ed3ng g\u1ed7 l\u1edbn ph\u1ee5c v\u1ee5 ch\u1ebf bi\u1ebfn c\u00e1c m\u1eb7t h\u00e0ng xu\u1ea5t kh\u1ea9u v\u00e0 h\u00e0ng gia d\u1ee5ng th\u00ec gi\u00e1 tr\u1ecb mang l\u1ea1i t\u1eeb r\u1eebng tr\u1ed3ng m\u1edbi l\u1edbn h\u01a1n.<\/i><\/b><\/p>\n

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L\u00c2M QUANG HUY<\/p>\n

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Ngu\u1ed3n: http:\/\/nongnghiep.vn\/phat-trien-rung-trong-go-lon-post180899.html<\/i><\/p>\n","protected":false},"excerpt":{"rendered":"

Trung t\u00e2m Khoa h\u1ecdc L\u00e2m nghi\u1ec7p B\u1eafc Trung b\u1ed9 (Vi\u1ec7n Khoa h\u1ecdc l\u00e2m nghi\u1ec7p VN) \u0111\u00e3 tri\u1ec3n khai th\u00e0nh c\u00f4ng m\u00f4 h\u00ecnh r\u1eebng g\u1ed7 l\u1edbn v\u1edbi gi\u1ed1ng c\u00e2y keo lai. Sau 13,5 n\u0103m, tr\u1eef l\u01b0\u1ee3ng g\u1ed7 \u0111\u1ea1t t\u1eeb 168 – 219 m3 g\u1ed7\/ha, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng tr\u1ecb gi\u00e1 h\u00e0ng tr\u0103m tri\u1ec7u \u0111\u1ed3ng\/ha. Tri\u1ec3n v\u1ecdng keo lai […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[51,72],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/16546"}],"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=16546"}],"version-history":[{"count":2,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/16546\/revisions"}],"predecessor-version":[{"id":16549,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/16546\/revisions\/16549"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=16546"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=16546"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=16546"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}