{"id":13286,"date":"2014-08-08T10:43:09","date_gmt":"2014-08-08T03:43:09","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/?p=13286"},"modified":"2014-08-01T10:44:20","modified_gmt":"2014-08-01T03:44:20","slug":"ky-thuat-trong-soi-phang","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/ky-thuat-trong-soi-phang\/","title":{"rendered":"K\u1ef9 thu\u1eadt tr\u1ed3ng S\u1ed3i ph\u1ea3ng"},"content":{"rendered":"

S\u00d4\u0300I PHA\u0309NG<\/b><\/p>\n

T\u00ean kha\u0301c: D\u1ebb b\u1ed9p, C\u1ed3ng<\/p>\n

T\u00ean khoa ho\u0323c: Lithocarpus fissus <\/i>Champ ex Benth.<\/p>\n

Ho\u0323 th\u01b0\u0323c v\u00e2\u0323t: D\u1ebb (Fagaceae)<\/p>\n

(Ngu\u1ed3n ch\u00ednh: Nguy\u1ec5n Th\u1ecb Nhung, 2009)<\/em><\/p>\n

1. \u0110\u0103\u0323c \u0111i\u00ea\u0309m hi\u0300nh tha\u0301i<\/b><\/p>\n

L\u00e0 c\u00e2y \u01b0a s\u00e1ng m\u1ecdc \u1edf b\u00eca r\u1eebng v\u00e0 nh\u1eefng ch\u1ed7 tr\u1ed1ng c\u00f3 th\u1ec3 m\u1ecdc th\u00e0nh qu\u1ea7n th\u1ee5 \u01b0u th\u1ebf r\u00f5 r\u1ec7t (chi\u1ebfm 75-80 % s\u1ed1 c\u00e2y). L\u00e0 c\u00e2y th\u01b0\u1eddng xanh quanh n\u0103m.<\/p>\n

2. \u0110\u0103\u0323c ti\u0301nh sinh tha\u0301i<\/b><\/p>\n

L\u00e0 c\u00e2y\u00a0 \u01b0a s\u00e1ng, t\u1ed1c \u0111\u1ed9 sinh tr\u01b0\u1edfng t\u01b0\u01a1ng \u0111\u1ed1i nhanh\u00a0 c\u00f3 th\u1ec3 tr\u1ed3ng h\u1ed7n giao v\u1edbi nhi\u1ec1u lo\u00e0i c\u00e2y kh\u00e1c.<\/p>\n

Trong v\u00f9ng ph\u00e2n b\u1ed1 c\u00e2y S\u1ed3i ph\u1ea3ng kh\u00f4ng k\u00e9n \u0111\u1ea5t c\u00f3 th\u1ec3 s\u1ed1ng v\u00e0 sinh tr\u01b0\u1edfng \u1edf nhi\u1ec1u lo\u1ea1i \u0111\u1ea5t.<\/p>\n

C\u00e2y t\u00e1i sinh h\u1ea1t m\u1ea1nh, t\u00e1i sinh ch\u1ed3i k\u00e9m. C\u00e2y d\u1ec5 tr\u1ed3ng, sinh tr\u01b0\u1edfng nhanh. <\/b>\u1ede L\u00e2m tr\u01b0\u1eddng C\u1ea9m Ph\u1ea3 \u0111\u00e3 tr\u1ed3ng r\u1eebng S\u1ed3i ph\u1ea3ng thu\u1ea7n lo\u00e0i, c\u00f2n \u1edf C\u1ea7u Hai \u0111\u00e3 khoanh nu\u00f4i v\u00e0 tr\u1ed3ng S\u1ed3i ph\u1ea3ng h\u1ed7n giao v\u1edbi c\u00e1c lo\u00e0i b\u1ea3n \u0111\u1ecba kh\u00e1c \u0111\u1ec1u thu k\u1ebft qu\u1ea3 t\u1ed1t.<\/p>\n

S\u1ed3i ph\u1ea3ng c\u00f3 bi\u00ean \u0111\u1ed9 sinh th\u00e1i r\u1ed9ng n\u00ean c\u00f3 th\u1ec3 g\u00e2y tr\u1ed3ng \u1edf t\u1ea5t c\u1ea3 c\u00e1c t\u1ec9nh mi\u1ec1n B\u1eafc nh\u1eefng n\u01a1i c\u00f3 l\u01b0\u1ee3ng m\u01b0a b\u00ecnh qu\u00e2n 1500-2500 mm\/n\u0103m, nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n\u00a0 20-27o<\/sup>C.<\/p>\n

S\u1ed3i ph\u1ea3ng c\u00f3 th\u1ec3 tr\u1ed3ng c\u00e1c lo\u1ea1i \u0111\u1ea5t th\u1ecbt, \u0111\u1ea5t s\u00e9t nh\u1eb9 nh\u01b0ng th\u00edch h\u1ee3p nh\u1ea5t l\u00e0 \u0111\u1ea5t Feralit c\u00f2n t\u00ednh ch\u1ea5t \u0111\u1ea5t r\u1eebng.<\/p>\n

\"Soi<\/a><\/p>\n

3. Gi\u00f4\u0301ng va\u0300 ta\u0323o c\u00e2y con<\/b><\/p>\n

C\u00e2y l\u1ea5y gi\u1ed1ng ph\u1ea3i l\u00e0 c\u00e2y sinh tr\u01b0\u1edfng t\u1ed1t, th\u00e2n th\u1eb3ng, t\u00e1n r\u1ed9ng. \u0111\u1ec1u kh\u00f4ng b\u1ecb s\u00e2u b\u1ec7nh v\u00e0 \u0111\u00e3 c\u00f3 t\u1eeb hai v\u1ee5 qu\u1ea3 tr\u1edf l\u00ean (c\u00e2y \u0111\u1ea1t 11-12 tu\u1ed5i). Ph\u1ea3i l\u1ea5y h\u1ea1t t\u1eeb c\u00e2y gi\u1ed1ng, t\u1eeb v\u01b0\u1eddn gi\u1ed1ng ho\u1eb7c r\u1eebng gi\u1ed1ng chuy\u1ec3n h\u00f3a \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn.<\/p>\n

H\u1ea1t gi\u1ed1ng ph\u1ea3i \u0111\u1ea1t \u0111\u01b0\u1eddng k\u00ednh h\u1ea1t t\u1eeb 1,7-1,9 cm, chi\u1ec1u d\u00e0i h\u1ea1t 2,6-2,8 cm. Trong\u00a0 1 kg h\u1ea1t c\u00f3 150-160 h\u1ea1t, 1 kg qu\u1ea3\u00a0 c\u00f3 105-110 h\u1ea1t v\u00e0 0,15 kg \u0111\u1ea5u. T\u1ef7 l\u1ec7 \u00a0n\u1ea3y m\u1ea7m tr\u00ean 70%.<\/p>\n

S\u1ed3i ph\u1ea3ng ra hoa th\u00e1ng 11-12, qu\u1ea3 ch\u00edn th\u00e1ng 4-5, qu\u1ea3 S\u1ed3i ph\u1ea3ng l\u00fac ch\u00edn v\u1ecf chuy\u1ec3n t\u1eeb m\u00e0u xanh n\u00e2u sang m\u00e0u v\u00e0ng n\u00e2u, h\u1ea1t c\u00f3 m\u00e0u n\u00e2u v\u00e0ng. Th\u1eddi v\u1ee5 thu h\u00e1i t\u1ed1t nh\u1ea5t v\u00e0o cu\u1ed1i th\u00e1ng 4, \u0111\u1ea7u th\u00e1ng 5. D\u00f9ng s\u00e0o c\u00f3 bu\u1ed9c ngo\u1eafc \u1edf \u0111\u1ea7u \u0111\u1ec3 ngo\u1eafc t\u1eebng ch\u00f9m khi qu\u1ea3 chuy\u1ec3n m\u00e0u\u00a0 ho\u1eb7c nh\u1eb7t h\u1ea1t khi qu\u1ea3 ch\u00edn r\u1ee5ng xu\u1ed1ng. Kh\u00f4ng ch\u1eb7t c\u00e0nh \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn n\u0103ng su\u1ea5t v\u1ee5 sau.<\/p>\n

Khi thu h\u00e1i v\u1ec1 c\u1ea7n lo\u1ea1i b\u1ecf t\u1ea1p ch\u1ea5t, qu\u1ea3 nh\u1ecf \u1ee7 v\u00e0o c\u00e1t\u00a0 t\u1eeb 1-2 ng\u00e0y cho \u0111\u1ebf (\u0111\u1ea5u) qu\u1ea3 r\u1eddi ra \u00a0r\u1ed3i \u0111em gieo \u01b0\u01a1m ngay ho\u1eb7c b\u1ea3o qu\u1ea3n.<\/p>\n

C\u00e1ch b\u1ea3o qu\u1ea3n trong c\u00e1t: Tr\u1ed9n \u0111\u1ec1u h\u1ea1t trong c\u00e1t 5- 6% v\u1edbi t\u1ef7 l\u1ec7 1 h\u1ea1t \/2 c\u00e1t (t\u00ednh theo kh\u1ed1i l\u01b0\u1ee3ng) sau \u0111\u00f3 vun th\u00e0nh lu\u1ed1ng cao 15-20 cm\/ tr\u00ean m\u1eb7t c\u1ea7n r\u1ea3i th\u00eam 1 l\u1edbp c\u00e1t m\u1ecfng kho\u1ea3ng 1-2 cm \u0111\u1ec3 ph\u1ee7 k\u00edn h\u1ea1t. kho\u1ea3ng 5-7 ng\u00e0y \u0111\u1ea3o m\u1ed9t l\u1ea7n. Th\u1eddi gian b\u1ea3o qu\u1ea3n kho\u1ea3ng 10-15 ng\u00e0y.<\/p>\n

Tu\u1ef3 theo s\u1ed1 th\u00e1ng nu\u00f4i c\u00e2y con trong v\u01b0\u1eddn \u01b0\u01a1m \u0111\u1ec3 ch\u1ecdn \u0111\u01b0\u1eddng k\u00ednh b\u1ea7u. D\u00f9ng b\u1ea7u Polyetylen n\u1ebfu nu\u00f4i c\u00e2y d\u01b0\u1edbi 6 th\u00e1ng ch\u1ecdn c\u1ee1 9 x13cm, n\u1ebfu nu\u00f4i c\u00e2y tr\u00ean 9 th\u00e1ng tr\u1edf l\u00ean th\u00ec c\u1ee1 12 x15 cm.<\/p>\n

Th\u00e0nh ph\u1ea7n ru\u1ed9t b\u1ea7u g\u1ed3m \u0111\u1ea5t t\u1ea7ng m\u1eb7t th\u1ecbt nh\u1eb9, \u0111\u1ea5t t\u1ed1t + 10% ph\u00e2n\u00a0 chu\u1ed3ng hoai v\u00e0 1% ph\u00e2n NPK (5:10:3). B\u1ea7u \u0111\u00f3ng xong \u0111\u01b0\u1ee3c x\u1ebfp th\u00e0nh lu\u1ed1ng r\u1ed9ng 0,8 \u0111\u1ebfn 1m, m\u1eb7t b\u1ea7u ph\u1eb3ng, l\u1ea5p \u0111\u1ea5t xung quanh 2\/3 b\u1ea7u v\u00e0 c\u00e1c k\u1ebd h\u1edf c\u1ee7a b\u1ea7u \u0111\u1ec3 cho ch\u1eb7t lu\u1ed1ng b\u1ea7u. C\u00e1c lu\u1ed1ng b\u1ea7u c\u00e1ch nhau 50-60 cm \u0111\u1ec3 ch\u0103m s\u00f3c c\u00e2y con \u0111\u01b0\u1ee3c thu\u1eadn ti\u1ec7n.<\/p>\n

Gieo h\u1ea1t tr\u00ean lu\u1ed1ng c\u00e1t \u1ea9m ho\u1eb7c lu\u1ed1ng \u0111\u1ea5t\u00a0 \u0111\u1ebfn khi h\u1ea1t n\u1ea3y m\u1ea7m \u0111\u01b0\u1ee3c 2 l\u00e1 th\u00ec nh\u1ed5 c\u1ea5y v\u00e0o b\u1ea7u.<\/p>\n

\u1ee6 h\u1ea1t trong c\u00e1t \u1ea9m\u00a0 \u0111\u1ebfn khi h\u1ea1t n\u1ee9t nanh th\u00ec mang gieo tr\u1ef1c ti\u1ebfp\u00a0 v\u00e0o b\u1ea7u, l\u01b0u \u00fd khi c\u1ea5y h\u1ea1t \u0111\u1ec3 h\u1ea1t n\u1eb1m ngang ho\u1eb7c ph\u1ea7n m\u1ea7m r\u1ec5 nh\u00fa ra xu\u1ed1ng d\u01b0\u1edbi v\u00e0 l\u1ea5p \u0111\u1ea5t d\u00e0y t\u1eeb 1-2 cm. C\u1ea7n t\u01b0\u1edbi \u1ea9m b\u1ea7u tr\u01b0\u1edbc khi c\u1ea5y h\u1ea1t.<\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p gieo h\u1ea1t tr\u1ef1c ti\u1ebfp v\u00e0o b\u1ea7u l\u00e0 t\u1ed1t nh\u1ea5t.<\/p>\n

Khi gieo \u01b0\u01a1m c\u1ea7n l\u00e0m gi\u00e0n che b\u00f3ng 50-60% kho\u1ea3ng 15-25 ng\u00e0y, sau \u0111\u00f3 gi\u1ea3m d\u1ea7n d\u00e0n che xu\u1ed1ng 40% khi c\u00e2y ra \u0111\u01b0\u1ee3c 3-4 l\u00e1 th\u1eadt c\u1ea7n b\u1ecf d\u1ea7n d\u00e0n che nh\u01b0ng ph\u1ea3i ch\u1ecdn ng\u00e0y d\u00e2m m\u00e1t v\u00e0 ph\u1ea3i b\u1ecf t\u1eeb t\u1eeb tr\u00e1nh c\u00e2y b\u1ecb n\u1eafng \u0111\u1ed9t ng\u1ed9t. V\u1eadt li\u1ec7u d\u00f9ng l\u00e0m d\u00e0n che t\u1ed1t nh\u1ea5t l\u00e0 \u0111an ph\u00ean b\u1eb1ng n\u1ee9a ho\u1eb7c tre, c\u00f3 th\u1ec3 d\u00f9ng t\u1ebf gu\u1ed9t c\u1eafm \u0111\u1ec3 che b\u00f3ng.<\/p>\n

Trong th\u1eddi gian \u0111\u1ea7u c\u1ea7n t\u01b0\u1edbi n\u01b0\u1edbc th\u01b0\u1eddng xuy\u00ean nh\u01b0ng ch\u1ec9 v\u1eeba \u0111\u1ee7 \u1ea9m kh\u00f4ng h\u1ea1t b\u1ecb th\u1ed1i do \u00fang n\u01b0\u1edbc, giai \u0111o\u1ea1n \u0111\u1ea7u c\u00e2y con t\u01b0\u1edbi th\u01b0\u1eddng xuy\u00ean sau khi c\u00e2y \u0111\u01b0\u1ee3c 2 th\u00e1ng tu\u1ed5i l\u01b0\u1ee3ng n\u01b0\u1edbc t\u01b0\u1edbi gi\u1ea3m d\u1ea7n tu\u1ef3 theo th\u1eddi ti\u1ebft v\u00e0 \u0111\u1ed9 \u1ea9m c\u1ee7a b\u1ea7u.<\/p>\n

Sau 1 th\u00e1ng ti\u1ebfn h\u00e0nh nh\u1ed5 c\u1ecf ph\u00e1 v\u00e1ng m\u1eb7t b\u1ea7u l\u1ea7n 1, th\u1eddi gian nh\u1ed5 c\u1ecf ph\u00e1 v\u00e1ng l\u1ea7n 2 tu\u1ef3 theo l\u01b0\u1ee3ng c\u1ecf v\u00e0 \u0111\u1ed9 c\u1ee9ng c\u1ee7a m\u1eb7t b\u1ea7u.<\/p>\n

Khi c\u00e2y cao \u0111\u01b0\u1ee3c 10 cm c\u00f3 th\u1ec3 b\u00f3n th\u00eam ph\u00e2n NPK(5:10:3) b\u1eb1ng c\u00e1ch pha 0,2 kg v\u00e0o 10 l\u00edt n\u01b0\u1edbc, t\u01b0\u1edbi \u0111\u1ec1u tr\u00ean m\u1eb7t lu\u1ed1ng kho\u1ea3ng 4m2<\/sup>; 10-15 ng\u00e0y t\u01b0\u1edbc 1 l\u1ea7n tu\u1ef3 theo m\u1ee9c \u0111\u1ed9 sinh tr\u01b0\u1edfng t\u1ed1t, x\u1ea5u c\u1ee7a c\u00e2y \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh s\u1ed1 l\u1ea7n t\u01b0\u1edbi ph\u00e2n, th\u1eddi gian d\u1eebng t\u01b0\u1edbi ph\u00e2n tr\u01b0\u1edbc khi c\u00e2y xu\u1ea5t v\u01b0\u1eddn 1-2 th\u00e1ng.<\/p>\n

Khi ph\u00e1t hi\u1ec7n th\u1ea5y c\u00f3 s\u00e2u qu\u1ea5n l\u00e1 th\u00ec d\u00f9ng thu\u1ed1c s\u00e2u Pastac ho\u1eb7c baxa phun tr\u00ean m\u1eb7t lu\u1ed1ng. N\u1ebfu b\u1ecb n\u1ea5m th\u00ec d\u00f9ng benl\u00e1t n\u1ed3ng \u0111\u1ed9 1% \u0111\u1ec3 phun \u0111\u1ec1u tr\u00ean m\u1eb7t lu\u1ed1ng, c\u00e1ch 7-10 ng\u00e0y phun 1 l\u1ea7n \u0111\u1ebfn khi h\u1ebft th\u00ec ng\u1eebng phun.<\/p>\n

Sau khi c\u00e2y m\u1ea7m \u0111\u00e3 l\u00ean \u0111\u01b0\u1ee3c 2-3 l\u00e1 th\u00ec c\u1ea7n d\u1ed3n l\u1ea1i b\u1ea7u, lo\u1ea1i b\u1ecf b\u1ea7u kh\u00f4ng c\u00f3 c\u00e2y \u0111\u1ec3 d\u1eb7m v\u00e0 t\u1eadp trung ch\u0103m s\u00f3c c\u00e2y con. Tr\u01b0\u1edbc khi tr\u1ed3ng t\u1eeb 1- 1,5 th\u00e1ng c\u1ea7n ti\u1ebfn h\u00e0nh \u0111\u1ea3o b\u1ea7u, c\u1eaft l\u00e1, h\u00e3m c\u00e2y \u0111\u1ec3 khi tr\u1ed3ng kh\u00f4ng b\u1ecb ch\u1ed9t c\u00e2y. N\u1ebfu th\u1eddi gian nu\u00f4i c\u00e2y trong v\u01b0\u1eddn \u01b0\u01a1m l\u00e2u th\u00ec kho\u1ea3ng 3 th\u00e1ng ph\u1ea3i \u0111\u1ea3o 1 l\u1ea7n. Khi \u0111\u1ea3o b\u1ea7u ph\u1ea3i ch\u1ecdn th\u1eddi ti\u1ebft d\u00e2m m\u00e1t, v\u00e0 t\u01b0\u1edbi nhi\u1ec1u n\u01b0\u1edbc cho \u1ea9m b\u1ea7u tr\u00e1nh l\u00e0m v\u1ee1 b\u1ea7u.<\/p>\n

Ti\u00eau chu\u1ea9n c\u00e2y con xu\u1ea5t v\u01b0\u1eddn: Tu\u1ed5i c\u00e2y t\u1eeb 4 th\u00e1ng tr\u1edf l\u00ean, sinh tr\u01b0\u1edfng b\u00ecnh th\u01b0\u1eddng, ph\u00e1t tri\u1ec3n c\u00e2n \u0111\u1ed1i, kh\u00f4ng s\u00e2u b\u1ec7nh ho\u1eb7c c\u1ee5t ng\u1ecdn, cao tr\u00ean 30cm, \u0111\u01b0\u1eddng k\u00ednh g\u1ed1c tr\u00ean 0,5cm.<\/p>\n

4. Tr\u00f4\u0300ng va\u0300 ch\u0103m so\u0301c r\u01b0\u0300ng<\/b><\/p>\n

Tr\u1ed3ng thu\u1ea7n lo\u00e0i:<\/i><\/b><\/p>\n

Th\u1ef1c b\u00ec \u0111\u01b0\u1ee3c ph\u00e1t d\u1ecdn s\u1ea1ch tr\u01b0\u1edbc th\u1eddi v\u1ee5 tr\u1ed3ng 2 th\u00e1ng, d\u1ecdn s\u1ea1ch th\u1ef1c b\u00ec\u00a0 c\u00f3 th\u1ec3 \u0111\u1ed1t ho\u1eb7c b\u0103m nh\u1ecf c\u00e0nh nh\u00e1nh.<\/p>\n

Cu\u1ed1c h\u1ed1 v\u1edbi k\u00edch th\u01b0\u1edbc 40x40x40 cm, sau 15-20 ng\u00e0y l\u1ea5p h\u1ed1, b\u00f3n l\u00f3t b\u1eb1ng ph\u00e2n chu\u1ed3ng hoai (3-5 kg\/h\u1ed1) ho\u1eb7c ph\u00e2n NPK(5:10:3) v\u1edbi l\u01b0\u1ee3ng 0,1-0,15 kg\/h\u1ed1 \u0111\u1ea3o \u0111\u1ec1u ph\u00e2n v\u00e0 \u0111\u1ea5t.<\/p>\n

Khi th\u1eddi ti\u1ebft thu\u1eadn l\u1ee3i th\u00ec tr\u1ed3ng c\u00e2y ch\u00fa \u00fd khi l\u1ea5p \u0111\u1ea5t xu\u1ed1ng h\u1ed1 ph\u1ea3i l\u1ea5y l\u1edbp \u0111\u1ea5t m\u1eb7t \u0111\u1eadp nh\u1ecf, l\u01b0\u1ee3ng \u0111\u1ea5t l\u1ea5p ph\u1ea3i \u0111\u1ea7y h\u1ed1, cao h\u01a1n mi\u1ec7ng h\u1ed1 3-4 cm.<\/p>\n

M\u1eadt \u0111\u1ed9 th\u00edch h\u1ee3p l\u00e0 1100 c\u00e2y\/ha c\u1ef1 ly 3m x 3m.<\/p>\n

Ngo\u00e0i ra c\u00f3 th\u1ec3 tr\u1ed3ng m\u1eadt \u0111\u1ed9 2000 c\u00e2y\/ha c\u1ef1 ly 2,5x2m ho\u1eb7c 1660 c\u00e2y\/ha c\u1ef1 ly 3x2m.<\/p>\n

Tr\u1ed3ng thu\u1ea7n lo\u00e0i c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng tr\u1ed3ng xen c\u00e2y n\u00f4ng nghi\u1ec7p 2 n\u0103m \u0111\u1ea7u b\u1eb1ng c\u00e1c bi\u1ec7n ph\u00e1p n\u00f4ng l\u00e2m k\u1ebft h\u1ee3p ho\u1eb7c tr\u1ed3ng c\u00e2y c\u1ed1t kh\u00ed ph\u00f9 tr\u1ee3 nh\u1eb1m c\u1ea3i t\u1ea1o \u0111\u1ea5t.<\/p>\n

Tr\u1ed3ng b\u1eb1ng c\u00e2y con c\u00f3 b\u1ea7u tr\u00ean 4 th\u00e1ng tu\u1ed5i, khi tr\u1ed3ng c\u1ea7n r\u1ea1ch b\u1ecf v\u1ecf b\u1ea7u, l\u1ea5p \u0111\u1ea5t \u0111\u1ebfn c\u1ed5 r\u1ec5 v\u00e0 l\u00e8n ch\u1eb7t \u0111\u1ea5t, ch\u00fa \u00fd c\u00e2y ph\u1ea3i \u0111\u1eb7t th\u1eb3ng \u0111\u1ee9ng \u1edf gi\u1eefa h\u1ed1.<\/p>\n

Tr\u00f4\u0300ng va\u0300o v\u1ee5 Xu\u00e2n th\u00e1ng 2- 4, v\u1ee5 Thu th\u00e1ng 8-9.<\/p>\n

R\u1eebng tr\u1ed3ng c\u1ea7n ch\u0103m s\u00f3c 3- 4 n\u0103m \u0111\u1ea7u.<\/p>\n

– N\u0103m th\u1ee9 nh\u1ea5t: N\u1ebfu tr\u1ed3ng v\u1ee5 xu\u00e2n th\u00ec ch\u0103m s\u00f3c 2 l\u1ea7n, l\u1ea7n 1 v\u00e0o th\u00e1ng 5-6 g\u1ed3m lu\u1ed7ng ph\u00e1t c\u1ecf d\u1ea1i, d\u00e2y leo, c\u00e2y b\u1ee5i; l\u1ea7n 2 v\u00e0o th\u00e1ng 9-10 g\u1ed3m lu\u1ed7ng ph\u00e1t c\u1ecf d\u1ea1i, d\u00e2y leo, c\u00e2y b\u1ee5i, x\u1edbi \u0111\u1ea5t quanh g\u1ed1c c\u00e2y r\u1ed9ng 1m.<\/p>\n

N\u1ebfu tr\u1ed3ng v\u1ee5 Thu th\u00ec ch\u0103m s\u00f3c 1 l\u1ea7n v\u00e0o th\u00e1ng 10-11, g\u1ed3m lu\u1ed7ng ph\u00e1t c\u00e2y c\u1ecf, d\u00e2y leo, c\u00e2y b\u1ee5i, kh\u00f4ng x\u1edbi \u0111\u1ea5t quanh g\u1ed1c.<\/p>\n

– Ch\u0103m s\u00f3c n\u0103m th\u1ee9 hai 3 l\u1ea7n, g\u1ed3m 2 l\u1ea7n lu\u1ed7ng ph\u00e1t c\u00e2y c\u1ecf, d\u00e2y leo, c\u00e2y b\u1ee5i v\u00e0 x\u1edbi \u0111\u1ea5t quanh g\u1ed1c r\u1ed9ng 1m v\u00e0o th\u00e1ng 2-3, 7- 8 v\u00e0 1 l\u1ea7n lu\u1ed7ng ph\u00e1t c\u00e2y c\u1ecf, d\u00e2y leo, c\u00e2y b\u1ee5i v\u00e0o th\u00e1ng 11.<\/p>\n

– Ch\u0103m s\u00f3c n\u0103m th\u1ee9 ba, th\u1ee9 t\u01b0 m\u1ed7i n\u0103m 2 l\u1ea7n, g\u1ed3m 1 l\u1ea7n lu\u1ed7ng ph\u00e1t c\u00e2y c\u1ecf, d\u00e2y leo, c\u00e2y b\u1ee5i v\u00e0 x\u1edbi \u0111\u1ea5t quanh g\u1ed1c c\u00e2y r\u1ed9ng 1m v\u00e0o th\u00e1ng 2-4 v\u00e0 1 l\u1ea7n lu\u1ed7ng ph\u00e1t c\u00e2y c\u1ecf, d\u00e2y leo, c\u00e2y b\u1ee5i v\u00e0o th\u00e1ng 8-9.<\/p>\n

Tr\u1ed3ng r\u1eebng h\u1ed7n giao:<\/i><\/b><\/p>\n

S\u1ed3i ph\u1ea3ng c\u00f3 th\u1ec3 tr\u1ed3ng h\u1ed7n giao v\u1edbi c\u00e1c lo\u00e0i c\u00e2y b\u1ea3n \u0111\u1ecba kha\u0301c nh\u01b0 Kh\u00e1o v\u00e0ng, Re g\u1eebng, Gi\u1ebb cau, Lim xanh, Xoan \u0111\u00e0o, D\u1ebb \u0111\u1ecf,\u2026 v\u00e0 c\u00f3 th\u1ec3 tr\u1ed3ng h\u1ed7n giao theo h\u00e0ng, d\u1ea3i v\u1edbi keo lai ho\u0103\u0323c Keo tai t\u01b0\u01a1\u0323ng.<\/p>\n

M\u1eadt \u0111\u1ed9 tr\u1ed3ng th\u00edch h\u1ee3p l\u00e0 1100 c\u00e2y\/ha ho\u1eb7c 1660 c\u00e2y\/ha tu\u1ef3 ph\u01b0\u01a1ng th\u1ee9c h\u1ed7n giao \u0111\u1ec3 chia s\u1ed1 c\u00e2y tr\u1ed3ng\u00a0 t\u1eebng lo\u00e0i theo m\u1eadt \u0111\u1ed9.<\/p>\n

S\u1ed3i ph\u1ea3ng tr\u1ed3ng h\u1ed7n giao v\u1edbi 1 ho\u1eb7c c\u00e1c lo\u00e0i c\u00e2y b\u1ea3n \u0111\u1ecba kh\u00e1c n\u00eau tr\u00ean theo 3 ph\u01b0\u01a1ng th\u1ee9c:<\/p>\n

Tr\u1ed3ng h\u1ed7n giao theo c\u00e2y (c\u00e2y n\u1ecd c\u00e2y kia ho\u1eb7c 3 c\u00e2y n\u1ecd 3 c\u00e2y kia)<\/p>\n

Tr\u1ed3ng theo h\u00e0ng (h\u00e0ng n\u1ecd h\u00e0ng c\u00e2y kia)<\/p>\n

Tr\u1ed3ng theo d\u1ea3i (3-5 h\u00e0ng c\u00e2y c\u00f9ng lo\u00e0i)<\/p>\n

K\u1ef9 thu\u1eadt tr\u1ed3ng ch\u0103m s\u00f3c r\u1eebng \u00e1p d\u1ee5ng nh\u01b0 tr\u1ed3ng\u00a0 thu\u1ea7n lo\u00e0i.<\/p>\n

\u00a0Tr\u1ed3ng theo r\u1ea1ch, \u0111\u00e1m:<\/i><\/b><\/p>\n

Th\u01b0\u1eddng \u00e1p d\u1ee5ng \u0111\u1ec3 l\u00e0m gi\u00e0u r\u1eebng t\u1ef1 nhi\u00ean ngh\u00e8o ki\u1ec7t ho\u1eb7c c\u1ea3i t\u1ea1o r\u1eebng ph\u00f2ng h\u1ed9 k\u00e9m hi\u1ec7u qu\u1ea3.<\/p>\n

Ph\u00e1t b\u0103ng tr\u1ed3ng r\u1ed9ng 6-8 m, b\u0103ng ch\u1eeba 4 m, trong b\u0103ng ph\u00e1t d\u1ecdn s\u1ea1ch th\u1ef1c b\u00ec, thi\u1ebft k\u1ebf h\u1ed1 gi\u1eefa r\u1ea1ch tr\u1ed3ng v\u1edbi c\u1ef1 ly 2,5-3m, cu\u1ed1c h\u1ed1 40x40x40 cm. C\u0169ng c\u00f3 th\u1ec3 tr\u1ed3ng theo \u0111\u00e1m tu\u1ef3 theo kho\u1ea3ng tr\u1ed1ng l\u1edbn hay nh\u1ecf.<\/p>\n

K\u1ef9 thu\u1eadt cu\u1ed1c h\u1ed1, tr\u1ed3ng, ch\u0103m s\u00f3c \u00e1p d\u1ee5ng nh\u01b0 tr\u1ed3ng thu\u1ea7n lo\u00e0i nh\u01b0ng c\u1ea7n l\u01b0u \u00fd khi ph\u00e1t ch\u0103m s\u00f3c c\u1ea7n lu\u1ed7ng ph\u00e1t c\u1ea3 nh\u1eefng c\u00e0nh nh\u00e1nh c\u1ee7a c\u00e2y r\u1eebng c\u0169 \u1edf b\u0103ng ch\u1eeba m\u1edf \u0111\u1ed9 chi\u1ebfu s\u00e1ng cho c\u00e2y tr\u1ed3ng v\u00e0 x\u00fac ti\u1ebfn t\u00e1i sinh t\u1ef1\u00a0 nhi\u00ean.<\/p>\n

5. Khai tha\u0301c, s\u01b0\u0309 du\u0323ng<\/b><\/p>\n

G\u1ed7 S\u1ed3i ph\u1ea3ng c\u00f3 t\u1ef7 tr\u1ecdng 0,72, x\u1ebfp nh\u00f3m V, c\u1ee9ng d\u00f9ng trong x\u00e2y d\u1ef1ng v\u00e0 tr\u1ee5 m\u1ecf.<\/p>\n

S\u1ed3i ph\u1ea3ng sinh tr\u01b0\u1edfng kh\u00e1 nhanh, chu k\u1ef3 kinh doanh kh\u00f4ng qu\u00e1 d\u00e0i (20-30 n\u0103m). Khi r\u1eebng \u0111a\u0323t tu\u00f4\u0309i 4-5, b\u0103\u0301t \u0111\u00e2\u0300u kh\u00e9p t\u00e1n th\u00ec ti\u0309a th\u01b0a l\u00e2\u0300n \u0111\u00e2\u0300u nh\u1eefng c\u00e2y x\u1ea5u, gi\u01b0\u0303 la\u0323i 900 c\u00e2y\/ha c\u00e2y t\u1ed1t (\u0111\u00f4\u0301i v\u01a1\u0301i r\u01b0\u0300ng tr\u00f4\u0300ng m\u00e2\u0323t 1100 c\u00e2y\/ha), 1300 c\u00e2y\/ha (\u0111\u00f4\u0301i v\u01a1\u0301i r\u01b0\u0300ng tr\u00f4\u0300ng m\u00e2\u0323t \u0111\u00f4\u0323 1660 c\u00e2y\/ha) \u0111\u00ea\u0309 nu\u00f4i d\u01b0\u01a1\u0303ng.<\/p>\n

L\u1ea7n ti\u0309a th\u01b0a th\u01b0\u0301 hai v\u00e0o n\u0103m th\u1ee9 8-9, ti\u0309a c\u00e2y x\u00e2\u0301u, gi\u01b0\u0303 la\u0323i c\u00e2y t\u00f4\u0301t v\u01a1\u0301i m\u00e2\u0323t \u0111\u00f4\u0323 \u0111\u1ec3 l\u1ea1i 700-900 c\u00e2y\/ha.<\/p>\n

\u0110\u00ea\u0301n n\u0103m th\u1ee9 13-14, ti\u0309a th\u01b0a gi\u01b0\u0303 la\u0323i m\u1eadt \u0111\u1ed9 cu\u1ed1i c\u00f9ng l\u00e0 500-700 c\u00e2y\/ha.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

S\u00d4\u0300I PHA\u0309NG T\u00ean kha\u0301c: D\u1ebb b\u1ed9p, C\u1ed3ng T\u00ean khoa ho\u0323c: Lithocarpus fissus Champ ex Benth. Ho\u0323 th\u01b0\u0323c v\u00e2\u0323t: D\u1ebb (Fagaceae) (Ngu\u1ed3n ch\u00ednh: Nguy\u1ec5n Th\u1ecb Nhung, 2009) 1. \u0110\u0103\u0323c \u0111i\u00ea\u0309m hi\u0300nh tha\u0301i L\u00e0 c\u00e2y \u01b0a s\u00e1ng m\u1ecdc \u1edf b\u00eca r\u1eebng v\u00e0 nh\u1eefng ch\u1ed7 tr\u1ed1ng c\u00f3 th\u1ec3 m\u1ecdc th\u00e0nh qu\u1ea7n th\u1ee5 \u01b0u th\u1ebf r\u00f5 r\u1ec7t (chi\u1ebfm 75-80 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[15,72],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/13286"}],"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=13286"}],"version-history":[{"count":2,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/13286\/revisions"}],"predecessor-version":[{"id":13291,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/13286\/revisions\/13291"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=13286"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=13286"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=13286"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}