Quy tr\u00ecnh k\u1ef9 thu\u1eadt tr\u1ed3ng r\u1eebng t\u1ebfch<\/b> <\/p>\n
(Tectona grandis<\/i> Lin.f)<\/b> <\/p>\n
Vi\u1ec7t Nam c\u00f3 \u0111i\u1ec1u ki\u1ec7n kh\u00ed h\u1eadu \u0111\u1ea5t \u0111ai th\u00edch h\u1ee3p cho tr\u1ed3ng r\u1eebng T\u1ebfch tr\u00ean nhi\u1ec1u v\u00f9ng r\u1ed9ng l\u1edbn, \u0110\u1eb7c bi\u1ec7t l\u00e0 \u0110\u00f4ng nam b\u1ed9, T\u00e2y Nguy\u00ean, B\u1eafc trung b\u1ed9… <\/p>\n
R\u1eebng T\u1ebfch c\u00f3 gi\u00e1 tr\u1ecb nhi\u1ec1u m\u1eb7t, v\u1eeba c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf l\u1edbn, v\u1eeba c\u00f3 t\u00e1c d\u1ee5ng ph\u00f2ng h\u1ed9, c\u1ea3i t\u1ea1o m\u00f4i sinh. T\u1ebfch (Tectona grandis<\/i> Lin.f), m\u1ed9t lo\u00e0i c\u00e2y r\u1ea5t h\u1ee3p cho tr\u1ed3ng r\u1eebng c\u00f4ng nghi\u1ec7p tr\u00ean quy m\u00f4 l\u1edbn, l\u00e0 lo\u1ea1i r\u1eebng c\u00f3 vai tr\u00f2 kh\u00f4ng th\u1ec3 thi\u1ebfu trong trong c\u00f4ng cu\u1ed9c c\u00f4ng nghi\u1ec7p ho\u00e1 hi\u1ec7n \u0111\u1ea1i ho\u00e1 \u0111\u1ea5t n\u01b0\u1edbc. \u0110\u1ed3ng th\u1eddi T\u1ebfch c\u00f2n l\u00e0 lo\u00e0i c\u00e2y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 ph\u00e1t tri\u1ec3n c\u00e1c m\u00f4 h\u00ecnh n\u00f4ng l\u00e2m k\u1ebft h\u1ee3p xen c\u00e2y l\u01b0\u01a1ng th\u1ef1c, th\u1ef1c ph\u1ea9m r\u1ea5t th\u00edch h\u1ee3p cho ph\u00e1t tri\u1ec3n l\u00e2m nghi\u1ec7p c\u1ed9ng \u0111\u1ed3ng, tr\u1ed3ng c\u00e2y nh\u00e2n d\u00e2n, v\u01b0\u1eddn r\u1eebng, trang tr\u1ea1i, ph\u00e1t tri\u1ec3n kinh t\u1ebf h\u1ed9 gia \u0111\u00ecnh. <\/p>\n
G\u1ed7 T\u1ebfch c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf to l\u1edbn, l\u00e0 m\u1ed9t m\u1eb7t h\u00e0ng truy\u1ec1n th\u1ed1ng \u1ed5n \u0111\u1ecbnh l\u00e2u \u0111\u1eddi r\u1ea5t \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng tr\u00ean th\u1ecb tr\u01b0\u1eddng th\u1ebf gi\u1edbi. G\u1ed7 T\u1ebfch kh\u00f4ng ng\u00e2m t\u1ea9m \u0111\u00e3 ch\u1ed1ng ch\u1ecbu \u0111\u01b0\u1ee3c h\u00e0, m\u1ecdt, kh\u00f4ng cong v\u00eanh, \u00edt bi\u1ebfn d\u1ea1ng,… \u0111\u01b0\u1ee3c d\u00f9ng trong x\u00e2y d\u1ef1ng, \u0111\u00f3ng t\u1ea7u thuy\u1ec1n, c\u1ea7u c\u1ea3ng, t\u00e0 v\u1eb9t, xu\u1ea5t kh\u1ea9u,… <\/p>\n
Ch\u01b0\u01a1ng I<\/b> <\/p>\n
\u0110i\u1ec1u kho\u1ea3n chung <\/p>\n
\u0110i\u1ec1u 1:<\/b>Quy tr\u00ecnh quy \u0111\u1ecbnh nh\u1eefng bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt ph\u1ea3i th\u1ef1c hi\u1ec7n t\u1eeb kh\u00e2u ch\u1ecdn gi\u1ed1ng \u0111\u1ebfn tr\u1ed3ng th\u00e0nh r\u1eebng (r\u1eebng kh\u00e9p t\u00e1n). <\/p>\n
Ch\u01b0\u01a1ng II<\/b> <\/p>\n
\u0110i\u1ec1u ki\u1ec7n tr\u1ed3ng r\u1eebng <\/p>\n
\u0110i\u1ec1u 2: Kh\u00ed h\u1eadu<\/b> <\/p>\n
Ch\u1ecdn v\u00f9ng tr\u1ed3ng r\u1eebng tho\u1ea3 m\u00e3n c\u00e1c \u0111i\u1ec1u ki\u1ec7n: <\/p>\n
– Kh\u00ed h\u1eadu n\u00f3ng \u1ea9m, c\u00f3 hai m\u00e0u m\u01b0a- kh\u00f4 r\u00f5. <\/p>\n
– Nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n n\u0103m 20-270<\/sup>C. Nhi\u1ec7t \u0111\u1ed9 t\u1ed1i th\u1ea5p tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng d\u01b0\u1edbi 20<\/sup>C, nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n t\u1ed1i \u0111a th\u00e1ng n\u00f3ng nh\u1ea5t l\u00e0 400<\/sup>C, nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n t\u1ed1i thi\u1ec3u th\u00e1ng l\u1ea1nh nh\u1ea5t l\u00e0 130<\/sup>C. <\/p>\n – \u0110\u1ed9 \u1ea9m kh\u00f4ng kh\u00ed b\u00ecnh qu\u00e2n n\u0103m 80-90%. L\u01b0\u1ee3ng m\u01b0a 1250-2500mm\/n\u0103m. M\u1ed9t n\u0103m c\u00f3 3-5 th\u00e1ng kh\u00f4 (l\u01b0\u1ee3ng m\u01b0a <40mm\/th\u00e1ng). <\/p>\n \u0110i\u1ec1u 3: \u0110\u1ea5t \u0111ai<\/b> <\/p>\n – Tr\u1ed3ng T\u1ebfch tr\u00ean \u0111\u1ea5t tho\u00e1t n\u01b0\u1edbc, t\u1ea7ng d\u00e0y \u00b350cm. \u0110\u1ea5t c\u00f2n t\u1ed1t, nh\u1ea5t l\u00e0 \u0111\u1ea5t c\u00f2n t\u00ednh ch\u1ea5t \u0111\u1ea5t r\u1eebng l\u00e0 th\u00edch h\u1ee3p cho tr\u1ed3ng T\u1ebfch. <\/p>\n – T\u1ebfch th\u00edch h\u1ee3p ph\u00e1t tri\u1ec3n tr\u00ean \u0111\u1ea5t th\u1ecbt nh\u1eb9, c\u00e1t pha, c\u00f3 t\u1ef7 l\u1ec7 m\u00f9n kh\u00e1. \u0110\u1ea5t h\u01a1i chua hay ki\u1ec1m nh\u1eb9. \u0110\u1ea5t c\u00f3 \u0111\u1ed9 pH=”6,5-7,5″ c\u00e2y T\u1ebfch sinh tr\u01b0\u1edfng ph\u00e1t tri\u1ec3n t\u1ed1t. <\/p>\n – Ch\u1ecdn \u0111\u1ea5t t\u01b0\u01a1ng \u0111\u1ed1i b\u1eb1ng c\u00f3 \u0111\u1ed9 d\u1ed1c <250<\/sup>, ph\u00e1t tri\u1ec3n tr\u00ean c\u00e1c lo\u1ea1i \u0111\u00e1 m\u1eb9 Bazan, grannit, ph\u00f9 sa ven s\u00f4ng, ph\u00f9 sa c\u1ed5 \u0111\u1ec3 tr\u1ed3ng T\u1ebfch. <\/p>\n – R\u1eebng tr\u1ed3ng tr\u00ean \u0111\u1ea5t \u0111\u00e1 ong, \u0111\u1ea5t c\u00e1t, \u0111\u1ea5t laterite (s\u00f3i m\u00f2n tr\u01a1 s\u1ecfi \u0111\u00e1). <\/p>\n – Kh\u00f4ng tr\u1ed3ng r\u1eebng tr\u00ean \u0111\u1ea5t ng\u1eadp n\u01b0\u1edbc v\u00e0o m\u00f9a m\u01b0a. <\/p>\n Ch\u01b0\u01a1ng III<\/b> <\/p>\n T\u1ea1o gi\u1ed1ng tr\u1ed3ng r\u1eebng <\/p>\n \u0110i\u1ec1u 4: Ch\u1ecdn c\u00e2y m\u1eb9 l\u1ea5y gi\u1ed1ng<\/b> <\/p>\n – Ch\u1ecdn c\u00e2y 25-45 tu\u1ed5i \u0111\u1ec3 l\u1ea5y h\u1ea1t gi\u1ed1ng. <\/p>\n – C\u00e2y m\u1eb9 l\u00e0 c\u00e2y cao to, th\u1eb3ng \u0111\u1eb9p, t\u00e1n \u0111\u1ec1u kh\u00f4ng s\u00e2u b\u1ec7nh, \u00edt u b\u01b0\u1edbu. <\/p>\n – L\u1ea5y gi\u1ed1ng v\u00e0o th\u00e1ng 2-3 khi qu\u1ea3 ch\u00edn, v\u1ecf qu\u1ea3 m\u00e0u h\u01a1i v\u00e0ng, n\u00e2u, x\u00e1m nh\u1ea1t. <\/p>\n – Qu\u1ea3 thu h\u00e1i v\u1ec1 s\u00e1t s\u1ea1ch v\u1ecf, qu\u1ea1t s\u1ea1ch, ph\u01a1i th\u1eadt kh\u00f4, lo\u1ea1i b\u1ecf h\u1ea1t nh\u1ecf, h\u1ea1t s\u00e2u. L\u1ea5y nh\u1eefng h\u1ea1t to \u0111\u01b0\u1eddng k\u00ednh 0,8-1cm. <\/p>\n – H\u1ea1t b\u1ea3o qu\u1ea3n kh\u00f4 th\u00f4ng th\u01b0\u1eddng. N\u1ebfu gieo ngay t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m cao h\u01a1n. <\/p>\n – 1kg c\u00f3 kho\u1ea3ng 2000 h\u1ea1t. <\/p>\n \u0110i\u1ec1u 5: V\u01b0\u1eddn \u01b0\u01a1m<\/b> <\/p>\n – Ch\u1ecdn n\u01a1i \u0111\u1ea5t t\u1ed1t, b\u1eb1ng, tho\u00e1t n\u01b0\u1edbc, g\u1ea7n \u0111\u01b0\u1eddng giao th\u00f4ng, c\u00f3 h\u00e0ng r\u00e0o b\u1ea3o v\u1ec7 l\u00e0m v\u01b0\u1eddn \u01b0\u01a1m. <\/p>\n – \u0110\u1ea5t v\u01b0\u1eddn \u01b0\u01a1m ph\u1ea3i \u0111\u01b0\u1ee3c c\u00e0y b\u1eeba 3 l\u1ea7n cho \u0111\u1ea5t nh\u1ecf, t\u01a1i x\u1ed1p. <\/p>\n – L\u00ean lu\u1ed1ng r\u1ed9ng 1m, d\u00e0i 10m. <\/p>\n – \u0110\u1ea5t lu\u1ed1ng gieo ph\u1ea3i \u0111\u1eadp nh\u1ecf, nh\u1eb7t s\u1ea1ch c\u1ecf; \u0111\u1ea5t chua ph\u1ea3i kh\u1eed chua b\u1eb1ng v\u00f4i. \u0110\u1ea5t lu\u1ed1ng gieo \u0111\u01b0\u1ee3c b\u00f3n l\u00f3t b\u1eb1ng ph\u00e2n chu\u1ed3ng hoai 4-5kg\/m2<\/sup>. Tr\u01b0\u1edbc khi gieo 1-2 tu\u1ea7n \u0111\u1ea5t gieo ph\u1ea3i \u0111\u01b0\u1ee3c kh\u1eed c\u00f4n tr\u00f9ng b\u1eb1ng Benlat ho\u1eb7c Bi58 \u0111\u1ec1u c\u00f3 n\u1ed3ng \u0111\u1ed9 1% t\u01b0\u1edbi 1 l\u00edt dung d\u1ecbch\/m2<\/sup>. <\/p>\n \u0110i\u1ec1u 6: X\u1eed l\u00fd h\u1ea1t<\/b> <\/p>\n Cho h\u1ea1t v\u00e0o t\u00fai, bao, r\u1ed3i ng\u00e2m trong n\u01b0\u1edbc n\u00f3ng 80-1000<\/sup>C trong 14-15 gi\u1edd, v\u1edbt ra r\u1eeda chua, ph\u01a1i n\u1eafng. Ng\u00e2m-ph\u01a1i nh\u01b0 v\u1eady 4 ng\u00e0y li\u1ec1n r\u1ed3i \u0111em gieo <\/p>\n Th\u1eddi v\u1ee5 gieo: v\u00e0o \u0111\u1ea7u m\u00f9a xu\u00e2n hay \u0111\u1ea7u m\u00f9a m\u01b0a. <\/p>\n \u0110i\u1ec1u 7: Gieo h\u1ea1t<\/b> <\/p>\n Gieo theo r\u1ea1ch. R\u1ea1ch c\u00e1ch nhau 20cm. H\u1ea1t c\u00e1ch h\u1ea1t 4-5cm. Gieo xong l\u1ea5p \u0111\u1ea5t v\u1eeba k\u00edn h\u1ea1t. C\u0169ng c\u00f3 th\u1ec3 gieo v\u00e3i, t\u1ed1n h\u1ea1t h\u01a1n v\u00e0 khi \u1ea5y ph\u1ea3i t\u1ec9a d\u1eb7m \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh m\u1eadt \u0111\u1ed9. Tu\u1ef3 v\u00f9ng c\u00f3 th\u1ec3 gieo xong c\u1ea7n che ph\u1ee7 b\u1eb1ng r\u01a1m, c\u1ecf kh\u00f4 \u0111\u1ec3 gi\u1eef \u1ea9m ho\u1eb7c kh\u00f4ng che ph\u1ee7 (khi \u1ea5y ph\u1ea3i t\u01b0\u1edbi n\u01b0\u1edbc ng\u00e0y 2 l\u1ea7n). <\/p>\n Gieo xong t\u01b0\u1edbi \u0111\u1eabm n\u01b0\u1edbc, \u0111\u1ea3m b\u1ea3o \u0111\u1ea5t lu\u00f4n \u0111\u1ee7 \u1ea9m. Sau kho\u1ea3ng 1 th\u00e1ng h\u1ea1t n\u1ea3y m\u1ea7m. Th\u00f4ng th\u01b0\u1eddng t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m \u0111\u1ea1t 30-35%. <\/p>\n \u0110i\u1ec1u 8: Ch\u0103m s\u00f3c c\u00e2y con<\/b> <\/p>\n – T\u01b0\u1edbi n\u01b0\u1edbc h\u00e0ng ng\u00e0y \u0111\u1ee7 \u1ea9m, li\u00ean t\u1ee5c 1,5 th\u00e1ng \u0111\u1ea7u. Sau \u0111\u00f3 2-3 ng\u00e0y t\u01b0\u1edbi 1 l\u1ea7n. <\/p>\n – \u0110\u1ecbnh k\u1ef3 l\u00e0m c\u1ecf ph\u00e1 v\u00e1ng 2l\u1ea7n\/th\u00e1ng, k\u1ebft h\u1ee3p t\u1ec9a c\u00e2y m\u1ea1 n\u01a1i d\u00e0y c\u00e2y sang ch\u1ed7 th\u01b0a. T\u1eeb th\u00e1ng 6 \u0111\u1ebfn th\u00e1ng th\u1ee9 10 m\u1ed7i th\u00e1ng 1 l\u1ea7n t\u01b0\u1edbi cho 1m2<\/sup>. <\/p>\n Ng\u1eebng ch\u0103m s\u00f3c 2 th\u00e1ng tr\u01b0\u1edbc khi tr\u1ed3ng. <\/p>\n – C\u00e2y con \u00edt b\u1ecb s\u00e2u b\u1ec7nh. N\u1ebfu c\u00f3 s\u00e2u b\u1ec7nh h\u1ea1i th\u00ec d\u00f9ng c\u00e1c lo\u1ea1i thu\u1ed1c th\u00edch h\u1ee3p c\u00f3 b\u00e1n tr\u00ean th\u1ecb tr\u01b0\u1eddng theo h\u01b0\u1edbng d\u1eabn ghi tr\u00ean nh\u00e3n \u0111\u1ec3 t\u01b0\u1edbi. <\/p>\n \u0110i\u1ec1u 9: T\u1ea1o c\u00e2y th\u00e2n c\u1ee5t (Stump)<\/b> <\/p>\n * Ti\u00eau chu\u1ea9n c\u00e2y con \u0111\u1ec3 t\u1ea1o c\u00e2y th\u00e2n c\u1ee5t:<\/i> <\/p>\n + C\u00e2y con 1 tu\u1ed5i <\/p>\n + C\u00e2y c\u00f3 Dc\u1ed5 r\u1ec5<\/sub>\u00b31cm, cao kho\u1ea3ng 0,5m. <\/p>\n + C\u00e2y kho\u1ebb kh\u00f4ng b\u1ecb s\u00e2u b\u1ec7nh. <\/p>\n * K\u1ef9 thu\u1eadt t\u1ea1o th\u00e2n c\u1ee5t<\/i> <\/p>\n + B\u1ee9ng c\u00e2y: T\u01b0\u1edbi \u0111\u1eabm n\u01b0\u1edbc, r\u1ed3i d\u00f9ng bay, x\u1ebbng b\u1ee9ng c\u00e2y nh\u1eb9 nh\u00e0ng, kh\u00f4ng l\u00e0m d\u1eadp c\u00e2y, bong v\u1ecf. <\/p>\n + D\u00f9ng dao s\u1eafc, m\u1ecfng l\u01b0\u1ee1i, \u0111\u00f2n k\u00ea ph\u1eb3ng \u0111\u1ec3 ch\u1eb7t. Ch\u1eb7t v\u00e1t m\u1ed9t g\u00f3c nghi\u00eang 30-450<\/sup> theo ph\u01b0\u01a1ng th\u1eb3ng \u0111\u1ee9ng, c\u00e1ch c\u1ed5 r\u1ec5 3-4cm v\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c d\u1eadp c\u00e2y. Th\u00e2n c\u1ee5t n\u00ean tr\u1ed3ng h\u1ebft trong ng\u00e0y. N\u1ebfu kh\u00f4ng h\u1ebft ph\u1ea3i \u0111\u1ec3 n\u01a1i d\u00e2m m\u00e1t, t\u01b0\u1edbi \u0111\u1ee7 \u1ea9m v\u00e0 kh\u00f4ng \u0111\u1ec3 qu\u00e1 3 ng\u00e0y. N\u1ebfu \u0111\u1ecba b\u00e0n tr\u1ed3ng r\u1eebng c\u00e1ch xa v\u01b0\u1eddn \u01b0\u01a1m, n\u01a1i t\u1ea1o th\u00e2n c\u1ee5t, ph\u1ea3i ti\u1ec1n h\u00e0nh h\u1ed3 r\u1ec5 ph\u00e2n cho b\u1ed9 r\u1ec5 gi\u1eef \u1ea9m v\u00e0 g\u00f3i b\u1ecdc b\u1eb1ng bao t\u1ea3i, nilon, tr\u01b0\u1edbc khi v\u1eadn chuy\u1ec3n t\u1edbi n\u01a1i tr\u1ed3ng. V\u1eadn chuy\u1ec3n kh\u00f4ng l\u00e0m d\u1eadp th\u00e2n v\u00e0 r\u1ec5 c\u00e2y, kh\u00f4ng \u0111\u1ec3 l\u1ed9 c\u00e2y ngo\u00e0i n\u1eafng. <\/p>\n Ch\u01b0\u01a1ng IV<\/b> <\/p>\n Tr\u1ed3ng r\u1eebng <\/p>\n \u0110i\u1ec1u 10: Th\u1eddi v\u1ee5 tr\u1ed3ng<\/b> <\/p>\n Tr\u1ed3ng v\u1ee5 xu\u00e2n h\u00e8 v\u00e0o \u0111\u1ea7u m\u00f9a m\u01b0a sau khi c\u00f3 1 tr\u1eadn m\u01b0a r\u00e0o ho\u1eb7c tr\u1ed3ng v\u1ee5 h\u00e8 thu. Tu\u1ef3 v\u00f9ng m\u00e0 \u0111\u1ecbnh th\u00e1ng tr\u1ed3ng ph\u00f9 h\u1ee3p. <\/p>\n \u0110i\u1ec1u 11: Ph\u00e1t d\u1ecdn th\u1ef1c b\u00ec<\/b> <\/p>\n V\u00e0o cu\u1ed1i n\u0103m, tr\u01b0\u1edbc khi cu\u1ed1c h\u1ed1 th\u1ef1c b\u00ec \u0111\u01b0\u1ee3c ph\u00e1t to\u00e0n di\u1ec7n, ch\u1ea5t th\u00e0nh nhi\u1ec1u \u0111\u00f3ng nh\u1ecf c\u00e1ch xa nhau \u0111\u1ec3 \u0111\u1ed1t. \u0110\u1ed1t theo quy \u0111\u1ecbnh ph\u00f2ng ch\u1ed1ng ch\u00e1y, kh\u00f4ng \u0111\u1ec3 ch\u00e1y lan. <\/p>\n \u0110i\u1ec1u 12: Cu\u1ed1c h\u1ed1<\/b> <\/p>\n Cu\u1ed1c h\u1ed1: k\u00edch th\u01b0\u1edbc h\u1ed1 40x40x40cm; l\u1edbp \u0111\u1ea5t m\u1eb7t vun ri\u00eang 1 b\u00ean h\u1ed1 \u0111\u1ec3 khi l\u1ea5p \u0111\u01b0a xu\u1ed1ng d\u01b0\u1edbi h\u1ed1. <\/p>\n L\u1ea5p h\u1ed1 ti\u1ebfn h\u00e0nh tr\u01b0\u1edbc khi tr\u1ed3ng 1 th\u00e1ng, \u0111\u1ea5t l\u1ea5p cao h\u01a1n mi\u1ec7ng h\u1ed1. <\/p>\n \u0110i\u1ec1u 13: Ph\u01b0\u01a1ng ph\u00e1p tr\u1ed3ng r\u1eebng<\/b> <\/p>\n Ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 nh\u1ea5t l\u00e0 ph\u01b0\u01a1ng ph\u00e1p tr\u1ed3ng b\u1eb1ng c\u00e2y th\u00e2n c\u1ee5t. <\/p>\n \u0110i\u1ec1u 14: Ph\u01b0\u01a1ng th\u1ee9c v\u00e0 m\u1eadt \u0111\u1ed9 tr\u1ed3ng<\/b> <\/p>\n – Tr\u1ed3ng thu\u1ea7n lo\u1ea1i hay tr\u1ed3ng xen c\u00e2y n\u00f4ng nghi\u1ec7p. <\/p>\n – Tr\u1ed3ng xen c\u00e2y n\u00f4ng nghi\u1ec7p theo ph\u01b0\u01a1ng th\u1ee9c n\u00f4ng l\u00e2m k\u1ebft h\u1ee3p. M\u1eadt \u0111\u1ed9 tr\u1ed3ng T\u1ebfch 1100 c\u00e2y\/ha (3mx3m). Lo\u00e0i c\u00e2y tr\u1ed3ng xen c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t trong c\u00e1c lo\u00e0i: \u0110\u1eadu t\u01b0\u01a1ng, L\u1ea1c, Ng\u00f4, L\u00faa n\u01b0\u01a1ng, \u0110u \u0111\u1ee7, Thu\u1ed1c l\u00e1, \u0110i\u1ec1u, \u0110\u1eadu tr\u00e0m. <\/p>\n – Th\u1eddi gian tr\u1ed3ng xen l\u00e0 2 n\u0103m <\/p>\n – Tr\u1ed3ng thu\u1ea7n lo\u1ea1i: 1700-2200 c\u00e2y\/ha (3mx2m; 3×1,5m) <\/p>\n \u0110i\u1ec1u 15: K\u1ef9 thu\u1eadt tr\u1ed3ng<\/b> <\/p>\n D\u00f9ng cu\u1ed1c tr\u1ed9n \u0111\u1ec1u \u0111\u1ea5t trong h\u1ed1, l\u1ea5p th\u00eam \u0111\u1ea5t, sau \u0111\u00f3 \u0111\u00e0o h\u1ed1 nh\u1ecf s\u00e2u h\u01a1n 20cm, \u0111\u1eb7t stump v\u00e0o cho \u0111\u1ee9ng th\u1eb3ng, d\u00f9ng tay vun \u0111\u1ea5t, n\u00e9n ch\u1eb7t xung quanh, th\u00e2n c\u1ee5t nh\u00f4 cao 2cm tr\u00ean m\u1eb7t \u0111\u1ea5t. <\/p>\n \u0110i\u1ec1u 16: Ch\u0103m s\u00f3c r\u1eebng tr\u1ed3ng<\/b> <\/p>\n Ch\u0103m s\u00f3c li\u00ean t\u1ee5c trong 3 n\u0103m \u0111\u1ea7u: <\/p>\n * N\u0103m th\u1ee9 nh\u1ea5t<\/i>: Sau khi tr\u1ed3ng ch\u1eadm nh\u1ea5t 3 th\u00e1ng ph\u1ea3i ti\u1ebfn h\u00e0nh ch\u0103m s\u00f3c. Nhi\u1ec7m v\u1ee5 ch\u0103m s\u00f3c l\u00e0 p\u00e1ht d\u1ecdn th\u1ef1c b\u00ec, r\u1eaby c\u1ecf x\u1edbi vun quanh g\u1ed1c 1m. N\u1ebfu tr\u1ed3ng v\u1ee5 xu\u00e2n h\u00e8 th\u00ec ph\u1ea3i ch\u0103m s\u00f3c 2 l\u1ea7n v\u00e0o qu\u00fd 3 v\u00e0 qu\u00fd 4. N\u1ebfu tr\u1ed3ng v\u1ee5 h\u00e8 thu th\u00ec ch\u0103m s\u00f3c 1 l\u1ea7n. Ch\u0103m s\u00f3c n\u0103m \u0111\u1ea7u c\u00f2n c\u00f3 nhi\u1ec7m v\u1ee5 tr\u1ed3ng d\u1eb7m \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1eadt \u0111\u1ed9 ban \u0111\u1ea7u. <\/p>\n * N\u0103m th\u1ee9 hai<\/i>: Ch\u0103m s\u00f3c hai l\u1ea7n v\u1edbi nhi\u1ec7m v\u1ee5 nh\u01b0 n\u0103m th\u1ee9 nh\u1ea5t. <\/p>\n * N\u0103m th\u1ee9 ba<\/i>: C\u0169ng ch\u0103m s\u00f3c hai l\u1ea7n nh\u01b0 n\u0103m th\u1ee9 hai. <\/p>\n \u0110i\u1ec1u 17: Nghi\u1ec7m thu r\u1eebng tr\u1ed3ng<\/b> <\/p>\n Sau khi tr\u1ed3ng 3 th\u00e1ng ti\u1ebfn h\u00e0nh nghi\u1ec7m thu r\u1eebng tr\u1ed3ng. N\u1ed9i dung nghi\u1ec7m thu: <\/p>\n – X\u00e1c \u0111\u1ecbnh di\u1ec7n t\u00edch, c\u00e1c l\u00f4 kho\u1ea3nh tr\u1ed3ng r\u1eebng tr\u00ean th\u1ef1c \u0111\u1ecba \u0111\u1ed1i chi\u1ebfu v\u1edbi b\u1ea3n \u0111\u1ed3. <\/p>\n – T\u1ef7 l\u1ec7 c\u00e2y s\u1ed1ng ph\u1ea3i \u0111\u1ea1t 90% so v\u1edbi m\u1eadt \u0111\u1ed9 thi\u1ebft k\u1ebf <\/p>\n – C\u00e2y sinh tr\u01b0\u1edfng ph\u00e1t tri\u1ec3n t\u1ed1t. <\/p>\n – Ki\u1ec3m tra vi\u1ec7c ch\u0103m s\u00f3c v\u00e0 tr\u1ed3ng d\u1eb7m. <\/p>\n \u0110i\u1ec1u 18: Nu\u00f4i d\u01b0\u1ee1ng, b\u1ea3o v\u1ec7 r\u1eebng tr\u1ed3ng<\/b> <\/p>\n – Ph\u00f2ng ch\u1ed1ng ch\u00e1y r\u1eebng, l\u1eadp \u0111\u01b0\u1eddng ranh c\u1ea3n l\u1eeda, d\u1ecdn b\u1ecf v\u1eadt li\u1ec7u ch\u00e1y tr\u00ean m\u1eb7t \u0111\u1ea5t r\u1eebng tr\u01b0\u1edbc m\u00f9a kh\u00f4. <\/p>\n – Ph\u00f2ng ch\u1ed1ng s\u00e2u b\u1ec7nh h\u1ea1i r\u1eebng <\/p>\n – Kh\u00f4ng \u0111\u1ec3 gia s\u00fac, ng\u01b0\u1eddi v\u00e0o ch\u1eb7t ph\u00e1. <\/p>\n Ch\u01b0\u01a1ng V<\/b> <\/p>\n \u0110i\u1ec1u kho\u1ea3n thi h\u00e0nh <\/p>\n \u0110i\u1ec1u 20:<\/b>Quy tr\u00ecnh \u00e1p d\u1ee5ng trong ph\u1ea1m vi to\u00e0n qu\u1ed1c, thay th\u1ebf cho quy ph\u1ea1m tr\u1ed3ng T\u1ebfch do B\u1ed9 L\u00e2m nghi\u1ec7p ban h\u00e0nh n\u0103m 1983. <\/p>\n C\u00e1c quy \u0111\u1ecbnh tr\u1ed3ng r\u1eebng T\u1ebfch tr\u01b0\u1edbc \u0111\u00e2y tr\u00e1i v\u1edbi quy \u0111\u1ecbnh n\u00e0y \u0111\u1ec1u b\u00e3i b\u1ecf. <\/p>\n Quy tr\u00ecnh c\u00f3 hi\u1ec7u l\u1ef1c t\u1eeb ng\u00e0y k\u00fd quy\u1ebft \u0111\u1ecbnh. <\/p>\n Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p VN<\/i> <\/p>\n","protected":false},"excerpt":{"rendered":" Quy tr\u00ecnh k\u1ef9 thu\u1eadt tr\u1ed3ng r\u1eebng t\u1ebfch
\n(Tectona grandis Lin.f)
\nVi\u1ec7t Nam c\u00f3 \u0111i\u1ec1u ki\u1ec7n kh\u00ed h\u1eadu \u0111\u1ea5t \u0111ai th\u00edch h\u1ee3p cho tr\u1ed3ng r\u1eebng T\u1ebfch tr\u00ean nhi\u1ec1u v\u00f9ng r\u1ed9ng l\u1edbn, \u0110\u1eb7c bi\u1ec7t l\u00e0 \u0110\u00f4ng nam b\u1ed9, T\u00e2y Nguy\u00ean, B\u1eafc trung b\u1ed9…
\nR\u1eebng T\u1ebfch c\u00f3 gi\u00e1 tr\u1ecb nhi\u1ec1u m\u1eb7t, v\u1eeba c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf l\u1edbn, v\u1eeba c\u00f3 t\u00e1c d\u1ee5ng ph\u00f2ng h\u1ed9, c\u1ea3i t\u1ea1o m\u00f4i sinh. T\u1ebfch (Tectona grandis Lin.f), m\u1ed9t lo\u00e0i c\u00e2y r\u1ea5t h\u1ee3p cho tr\u1ed3ng r\u1eebng c\u00f4ng nghi\u1ec7p tr\u00ean quy m\u00f4 l\u1edbn, l\u00e0 lo\u1ea1i r\u1eebng c\u00f3 vai tr\u00f2 kh\u00f4ng th\u1ec3 thi\u1ebfu trong trong c\u00f4ng cu\u1ed9c c\u00f4ng nghi\u1ec7p ho\u00e1 hi\u1ec7n \u0111\u1ea1i ho\u00e1 \u0111\u1ea5t n\u01b0\u1edbc. \u0110\u1ed3ng th\u1eddi T\u1ebfch c\u00f2n l\u00e0 lo\u00e0i c\u00e2y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 ph\u00e1t tri\u1ec3n c\u00e1c m\u00f4 h\u00ecnh n\u00f4ng l\u00e2m k\u1ebft h\u1ee3p xen c\u00e2y l\u01b0\u01a1ng th\u1ef1c, th\u1ef1c ph\u1ea9m r\u1ea5t th\u00edch h\u1ee3p cho ph\u00e1t tri\u1ec3n l\u00e2m nghi\u1ec7p c\u1ed9ng \u0111\u1ed3ng, tr\u1ed3ng c\u00e2y nh\u00e2n d\u00e2n, v\u01b0\u1eddn r\u1eebng, trang tr\u1ea1i, ph\u00e1t tri\u1ec3n kinh t\u1ebf h\u1ed9 gia \u0111\u00ecnh.
\nG\u1ed7 T\u1ebfch c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf to l\u1edbn, l\u00e0 m\u1ed9t m\u1eb7t h\u00e0ng truy\u1ec1n th\u1ed1ng \u1ed5n \u0111\u1ecbnh l\u00e2u \u0111\u1eddi r\u1ea5t \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng tr\u00ean th\u1ecb tr\u01b0\u1eddng th\u1ebf gi\u1edbi. G\u1ed7 T\u1ebfch kh\u00f4ng ng\u00e2m t\u1ea9m \u0111\u00e3 ch\u1ed1ng ch\u1ecbu \u0111\u01b0\u1ee3c h\u00e0, m\u1ecdt, kh\u00f4ng cong v\u00eanh, \u00edt bi\u1ebfn d\u1ea1ng,… \u0111\u01b0\u1ee3c d\u00f9ng trong x\u00e2y d\u1ef1ng, \u0111\u00f3ng t\u1ea7u thuy\u1ec1n, c\u1ea7u c\u1ea3ng, t\u00e0 v\u1eb9t, xu\u1ea5t kh\u1ea9u,…<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[21],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/397"}],"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=397"}],"version-history":[{"count":3,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/397\/revisions"}],"predecessor-version":[{"id":8631,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/397\/revisions\/8631"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=397"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=397"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=397"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}