2<\/sup> ph\u00f2ng tr\u1eeb n\u1ea5m. Th\u01b0\u1eddng xuy\u00ean b\u1eaft di\u1ec7t s\u00e2u \u0103n l\u00e1 ho\u1eb7c c\u1eafn c\u00e2y.<\/p>\nB\u00f3n th\u00fac 2 l\u1ea7n b\u1eb1ng ph\u00e2n NPK (5:10:3) ho\u1eb7c supe l\u00e2n L\u00e2m Thao: L\u00fac c\u00e2y 40 ng\u00e0y tu\u1ed5i, b\u00f3n 0,15g\/b\u1ea7u v\u00e0 l\u00fac c\u00e2y 60 ng\u00e0y tu\u1ed5i, b\u00f3n 0,3g\/b\u1ea7u.<\/p>\n
Ng\u1eebng t\u01b0\u1edbi n\u01b0\u1edbc, ch\u0103m s\u00f3c v\u00e0 ph\u1ea3i \u0111\u1ea3o b\u1ea7u tr\u01b0\u1edbc khi tr\u1ed3ng 15-20 ng\u00e0y.<\/p>\n
+ Ti\u00eau chu\u1ea9n c\u00e2y con \u0111em tr\u1ed3ng: <\/i><\/p>\n
Tu\u1ed5i 2,5-3 th\u00e1ng, chi\u1ec1u cao 20-25cm, \u0111\u01b0\u1eddng k\u00ednh c\u1ed5 r\u1ec5 0,2cm, c\u00e2y c\u00e2n \u0111\u1ed1i kh\u00f4ng cong queo s\u00e2u b\u1ec7nh.<\/p>\n
– T\u1ea1o c\u00e2y con b\u1eb1ng hom (Nh\u00e2n gi\u1ed1ng v\u00f4 t\u00ednh)<\/i><\/b><\/p>\n
\u00c1p d\u1ee5ng ti\u00eau chu\u1ea9n ng\u00e0nh 04TCN 30-2001 – Quy ph\u1ea1m k\u1ef9 thu\u1eadt gi\u00e2m hom b\u1ea1ch \u0111\u00e0n ban h\u00e0nh k\u00e8m theo quy\u1ebft \u0111\u1ecbnh s\u1ed1 2380\/QDD\/BNN-KHCN ng\u00e0y 31\/5\/2001 c\u1ee7a B\u1ed9 NN&PTNT.<\/p>\n
+ X\u00e2y d\u1ef1ng v\u01b0\u1eddn cung c\u1ea5p hom:<\/i><\/p>\n
T\u1ea1o c\u00e2y con v\u1edbi s\u1ed1 l\u01b0\u1ee3ng \u00edt c\u00f3 th\u1ec3 x\u00e2y c\u00e1c lu\u1ed1ng gi\u00e2m r\u1ed9ng 1,2-1,4m, d\u00e0i 3-5m, th\u00e0nh cao 0,1-0,15m, m\u1eb7t \u0111\u00e1y d\u1ed1c 3% \u1edf hai b\u00ean th\u00e0nh lu\u1ed1ng. Trong lu\u1ed1ng x\u1ebfp c\u00e1c b\u1ea7u \u0111\u1ea5t ho\u1eb7c \u0111\u1ed5 c\u00e1t th\u00f4 s\u1ea1ch l\u00e0m gi\u00e1 th\u1ec3. Tr\u00ean lu\u1ed1ng c\u00f3 gi\u00e0n ho\u1eb7c l\u01b0\u1edbi che 50% \u00e1nh s\u00e1ng \u1edf t\u1ea7m cao 2-2,5m. M\u1ed7i lu\u1ed1ng ch\u1ee5p l\u1ec1u gi\u00e2m hom c\u00f3 khung v\u00f2m b\u1eb1ng s\u1eaft ho\u1eb7c tre \u0111\u01b0\u1ee3c ph\u1ee7 k\u00edn ni l\u00f4ng tr\u1eafng.<\/p>\n
C\u00e2y tr\u1ed3ng v\u01b0\u1eddn v\u1eadt li\u1ec7u gi\u1ed1ng l\u00e0 c\u00e2y hom, c\u00e2y m\u00f4 th\u1ebf h\u1ec7 \u0111\u1ea7u c\u1ee7a xu\u1ea5t x\u1ee9 ho\u1eb7c d\u00f2ng \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn v\u00e0 tr\u1ed3ng tr\u01b0\u1edbc \u0111\u1ee3t thu ch\u1ed3i \u0111\u1ea7u ti\u00ean \u00edt nh\u1ea5t 2 th\u00e1ng.<\/p>\n
\u0110\u00e0o h\u1ed1 40x40x40 cm, tr\u1ed3ng c\u1ef1 ly 40×30 cm, b\u00f3n l\u00f3t 1 kg ph\u00e2n chu\u1ed3ng hoai v\u00e0 50g ph\u00e2n NPK (5:10:3) hay 200g ph\u00e2n l\u00e2n h\u1eefu c\u01a1 vi sinh cho 1 h\u1ed1.<\/p>\n
T\u01b0\u1edbi n\u01b0\u1edbc th\u01b0\u1eddng xuy\u00ean \u0111\u1ee7 \u1ea9m, sau 1 th\u00e1ng l\u00e0m c\u1ecf, vun g\u1ed1c v\u00e0 l\u1eb7p l\u1ea1i theo \u0111\u1ecbnh k\u1ef3 2 th\u00e1ng 1 l\u1ea7n. Sau 1 l\u1ea7n c\u1eaft ch\u1ed3i l\u1ea5y hom ph\u1ea3i ph\u00e1t c\u1ecf, vun x\u1edbi g\u1ed1c v\u00e0 phun Benlat 0,15-0,3%, l\u01b0\u1ee3ng phun 1 l\u00edt\/m2<\/sup>.<\/p>\nSau 3 n\u0103m ph\u1ea3i tr\u1ed3ng thay th\u1ebf b\u1eb1ng c\u00e2y m\u00f4 ho\u1eb7c c\u00e2y hom m\u1edbi th\u1ebf h\u1ec7 \u0111\u1ea7u.<\/p>\n
\u0110\u1ed1n t\u1ea1o ch\u1ed3i c\u00e2y gi\u1ed1ng l\u1ea7n \u0111\u1ea7u sau khi tr\u1ed3ng 2 th\u00e1ng. D\u00f9ng k\u00e9o s\u1eafc c\u1eaft ngang th\u00e2n c\u00e2y c\u00e1ch m\u1eb7t \u0111\u1ea5t 20-30cm. Phun Benlat 0,15-0,3% cho \u01b0\u1edbt c\u00e2y.<\/p>\n
+ C\u1eaft hom:<\/i><\/p>\n
C\u1eaft ch\u1ed3i l\u1ea7n \u0111\u1ea7u sau khi \u0111\u1ed1n c\u00e2y t\u1ea1o ch\u1ed3i 28-30 ng\u00e0y, ti\u1ebfp theo c\u1eaft ch\u1ecdn c\u00e1ch 10-15 ng\u00e0y 1 l\u1ea7n. Kh\u00f4ng c\u1eaft ch\u1ed3i v\u00e0o l\u00fac n\u1eafng n\u00f3ng. D\u00f9ng k\u00e9o s\u1eafc c\u1eaft \u1edf v\u1ecb tr\u00ed s\u00e1t th\u00e2n c\u00e2y, ch\u1ec9 \u0111\u1ec3 l\u1ea1i 2 l\u00e1 ho\u1eb7c 2 ch\u1ed3i ng\u1ee7 \u1edf g\u1ed1c ch\u1ed3i. Sau khi c\u1eaft nh\u00fang g\u1ed1c ch\u1ed3i v\u00e0o ng\u00e2m trong n\u01b0\u1edbc s\u1ea1ch \u0111\u1ec3 n\u01a1i r\u00e2m m\u00e1t.<\/p>\n
D\u00f9ng k\u00e9o s\u1eafc c\u1eaft t\u1ea1o hom, kh\u00f4ng l\u00e0m tr\u1ea7y x\u01b0\u1edbc ho\u1eb7c d\u1eadp g\u1ed1c hom. M\u1ed7i ch\u1ed3i c\u1eaft l\u1ea5y 1 hom ng\u1ecdn d\u00e0i 7-10cm, c\u00f3 6-8 l\u00e1. V\u1ebft c\u1eaft \u1edf v\u1ecb tr\u00ed 0,2cm ph\u00eda d\u01b0\u1edbi c\u1ee7a \u0111\u1ed1t d\u01b0\u1edbi c\u00f9ng. Sau \u0111\u00f3 c\u1eaft b\u1ecf to\u00e0n b\u1ed9 2 l\u00e1 d\u01b0\u1edbi c\u00f9ng v\u00e0 1\/2 phi\u1ebfn l\u00e1 c\u1ee7a 2 l\u00e1 k\u1ebf ti\u1ebfp. C\u00f3 th\u1ec3 l\u1ea5y hom k\u1ebf d\u01b0\u1edbi hom ng\u1ecdn c\u00f3 2 \u0111\u1ed1t, d\u00e0i 5-7cm v\u00e0 ph\u1ea3i x\u1eed l\u00fd thu\u1ed1c k\u00edch th\u00edch ra r\u1ec5 cao h\u01a1n. Hom c\u1eaft ng\u00e0y n\u00e0o gi\u00e2m ng\u00e0y \u1ea5y.<\/p>\n
+ Gi\u00e2m hom:<\/i><\/p>\n
Gi\u00e2m hom tr\u01b0\u1edbc khi tr\u1ed3ng 2,5-3,5 th\u00e1ng. Ng\u00e2m hom sau khi c\u1eaft v\u00e0o dung d\u1ecbch Benlat 0,02% trong 15-20 ph\u00fat. V\u1edbt ra x\u1eed l\u00fd thu\u1ed1c IBA b\u1ed9t 0,02% ho\u1eb7c ABT b\u1ed9t 0,03%, v\u1edbi hom 2 ph\u1ea3i x\u1eed l\u00fd b\u1eb1ng IBA b\u1ed9t 0,1%.<\/p>\n
T\u01b0\u1edbi Benlat 0,06% ho\u1eb7c thu\u1ed1c t\u00edm 0,1% \u01b0\u1edbt l\u1edbp m\u1eb7t gi\u00e1 th\u1ec3 s\u00e2u h\u01a1n 3cm cho gi\u00e1 th\u1ec3 trong c\u00e1c lu\u1ed1ng gi\u00e2m tr\u01b0\u1edbc khi c\u1ea5y hom 12 gi\u1edd.<\/p>\n
T\u01b0\u1edbi n\u01b0\u1edbc th\u1eadt \u1ea9m to\u00e0n b\u1ed9 gi\u00e1 th\u1ec3, d\u00f9ng que nh\u1ecdn ch\u1ecdc l\u1ed7 s\u00e2u 2-3cm, c\u1eafm hom \u0111\u00e3 x\u1eed l\u00fd v\u00e0o l\u1ed7 s\u00e2u 2-3cm, d\u00f9ng tay b\u00f3p nh\u1eb9 \u0111\u1ea5t quanh g\u1ed1c hom. Khi c\u1ea5y kh\u00f4ng \u0111\u01b0\u1ee3c l\u00e0m m\u1ea5t thu\u1ed1c k\u00edch th\u00edch ra r\u1ec5 v\u00e0 tr\u1ea7y x\u01b0\u1edbc g\u1ed1c hom.<\/p>\n
Ngay sau khi c\u1ea5y hom xong ch\u1ee5p ph\u1ee7 k\u00edn nil\u00f4ng l\u00ean khung v\u00f2m lu\u1ed1ng gi\u00e2m hom v\u00e0 t\u01b0\u1edbi phun s\u01b0\u01a1ng cho hom tr\u1eeb ban \u0111\u00eam. C\u00e1ch 30-40 ph\u00fat t\u01b0\u1edbi 1 l\u1ea7n 7-10 gi\u00e2y, gi\u1eef \u0111\u1ed9 \u1ea9m kh\u00f4ng kh\u00ed trong v\u00f2m tr\u00ean 80%, nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng qu\u00e1 30o<\/sup>C. T\u01b0\u1edbi th\u01b0\u1eddng xuy\u00ean, trong 3-5 tu\u1ea7n \u0111\u1ebfn khi b\u1ed9 r\u1ec5 hom ph\u00e1t tri\u1ec3n ho\u00e0n ch\u1ec9nh, gi\u1ea3m t\u01b0\u1edbi n\u01b0\u1edbc 1 tu\u1ea7n r\u1ed3i chuy\u1ec3n hom ra nu\u00f4i d\u01b0\u1ee1ng t\u1ea1i v\u01b0\u1eddn \u01b0\u01a1m.<\/p>\n+ Hu\u1ea5n luy\u1ec7n c\u00e2y hom:<\/i><\/p>\n
V\u1edbi hom gi\u00e2m trong c\u00e1t chuy\u1ec3n ra c\u1ea5y v\u00e0o b\u1ea7u v\u00e0 t\u01b0\u1edbi n\u01b0\u1edbc, che n\u1eafng nh\u01b0 \u1edf nh\u00e0 gi\u00e2m hom cho \u0111\u1ebfn khi c\u00e2y \u1ed5n \u0111\u1ecbnh th\u00ec d\u1ee1 b\u1ecf d\u00e0n ho\u1eb7c l\u01b0\u1edbi che. V\u1edbi hom gi\u00e2m trong b\u1ea7u th\u00ec chuy\u1ec3n ra v\u00e0 x\u1ebfp lu\u1ed1ng nh\u01b0 b\u1ea7u \u0111\u00e3 c\u1ea5y hom.<\/p>\n
T\u01b0\u1edbi ph\u00e2n \u0111\u1ecbnh k\u1ef3 1 tu\u1ea7n 1 l\u1ea7n v\u1edbi l\u01b0\u1ee3ng 1kg ph\u00e2n NPK (5:10:3) ho\u00e0 trong 33 l\u00edt n\u01b0\u1edbc t\u01b0\u1edbi cho 5000 b\u1ea7u v\u00e0 t\u01b0\u1edbi n\u01b0\u1edbc r\u1eeda l\u00e1 sau khi t\u01b0\u1edbi ph\u00e2n. Th\u01b0\u1eddng xuy\u00ean t\u01b0\u1edbi n\u01b0\u1edbc \u0111\u1ee7 \u1ea9m cho c\u00e2y, nh\u1eb7t b\u1ecf l\u00e1 r\u1ee5ng, hom ch\u1ebft, nh\u1ed5 b\u1ecf c\u1ecf d\u1ea1i. Ng\u1eebng t\u01b0\u1edbi n\u01b0\u1edbc v\u00e0 ph\u00e2n 2 tu\u1ea7n tr\u01b0\u1edbc khi xu\u1ea5t c\u00e2y \u0111i tr\u1ed3ng.<\/p>\n
\u0110\u1ecbnh k\u1ef3 1 tu\u1ea7n 1 l\u1ea7n phun Benlat 0,06%, li\u1ec1u l\u01b0\u1ee3ng 0,2 l\u00edt\/m2<\/sup>. N\u1ebfu b\u1ecb n\u1ea5m b\u1ec7nh n\u1eb7ng th\u00ec m\u1ed7i tu\u1ea7n phun 2 l\u1ea7n Benlat 0,08%, li\u1ec1u l\u01b0\u1ee3ng 0,2 l\u00edt\/m2<\/sup>. <\/i><\/p>\n+ Ti\u00eau chu\u1ea9n c\u00e2y con \u0111em tr\u1ed3ng: <\/i><\/p>\n
Tu\u1ed5i c\u00e2y hom 2-2,5 th\u00e1ng, cao 20-30cm, \u0111\u01b0\u1eddng k\u00ednh c\u1ed5 r\u1ec5 0,3cm, c\u00e2y kho\u1ebb m\u1ea1nh, kh\u00f4ng c\u1ee5t ng\u1ecdn, s\u00e2u b\u1ec7nh, h\u00ecnh d\u00e1ng c\u00e2n \u0111\u1ed1i.<\/p>\n
4. Tr\u1ed3ng va\u0300 ch\u0103m s\u00f3c r\u1eebng<\/b><\/p>\n
\u00c1p d\u1ee5ng ti\u00eau chu\u1ea9n ng\u00e0nh 04TCN 26-2001 – Quy tr\u00ecnh k\u1ef9 thu\u1eadt tr\u1ed3ng r\u1eebng th\u00e2m canh b\u1ea1ch \u0111\u00e0n Eucalyptus urophylla<\/i> b\u1eb1ng c\u00e1c d\u00f2ng v\u00f4 t\u00ednh ch\u1ecdn l\u1ecdc ban h\u00e0nh k\u00e8m theo quy\u1ebft \u0111\u1ecbnh s\u1ed1 2379\/Q\u0110-BNN-KHCN ng\u00e0y 31\/5\/2001 c\u1ee7a B\u1ed9 NN&PTNT.<\/p>\n
B\u1ea1ch \u0111\u00e0n n\u00e2u tr\u1ed3ng th\u00edch h\u1ee3p \u1edf n\u01a1i c\u00f3 th\u1ef1c b\u00ec d\u1ea1ng tr\u1ea3ng c\u1ecf c\u00e2y b\u1ee5i, kh\u00f4ng ho\u1eb7c c\u00f3 c\u00e2y g\u1ed7 r\u1ea3i r\u00e1c, N\u1ee9a t\u00e9p, l\u1ed3 \u00f4,…, n\u01b0\u01a1ng r\u1eaby b\u1ecf ho\u00e1, r\u1eebng th\u1ee9 sinh ngh\u00e8o ki\u1ec7t.<\/p>\n
Th\u00edch h\u1ee3p g\u00e2y tr\u1ed3ng \u1edf nh\u1eefng n\u01a1i c\u00f3 l\u01b0\u1ee3ng m\u01b0a b\u00ecnh qu\u00e2n n\u0103m 1700-2200mm, nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n n\u0103m 20-25o<\/sup>C, nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n th\u00e1ng n\u00f3ng nh\u1ea5t <27o<\/sup>C, nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n th\u00e1ng l\u1ea1nh nh\u1ea5t >20o<\/sup>C, nhi\u1ec7t \u0111\u1ed9 t\u1ed1i cao tuy\u1ec7t \u0111\u1ed1i <30o<\/sup>C, nhi\u1ec7t \u0111\u1ed9 t\u1ed1i th\u1ea5p tuy\u1ec7t \u0111\u1ed1i >14o<\/sup>C, c\u00f3 0-2 th\u00e1ng m\u01b0a \u00edt h\u01a1n 50mm, \u0111\u1ed9 cao d\u01b0\u1edbi 750m so v\u1edbi m\u1ef1c n\u01b0\u1edbc bi\u1ec3n, \u0111\u1ecba h\u00ecnh d\u1ed1c <25o<\/sup>; lo\u1ea1i \u0111\u1ea5t x\u00e1m, \u0111\u1ea5t \u0111\u1ecf tr\u00ean m\u1eafc ma baz\u01a1 v\u00e0 trung t\u00ednh, \u0111\u1ea5t \u0111\u1ecf v\u00e0ng tr\u00ean \u0111\u00e1 kh\u00e1c, \u0111\u1ea5t ph\u00f9 sa, \u0111\u1ed9 d\u00e0y t\u1ea7ng \u0111\u1ea5t tr\u00ean 100cm.<\/p>\nC\u00f3 th\u1ec3 m\u1edf r\u1ed9ng g\u00e2y tr\u1ed3ng \u1edf nh\u1eefng n\u01a1i c\u00f3 l\u01b0\u1ee3ng m\u01b0a b\u00ecnh qu\u00e2n n\u0103m 1500-1700mm, 2200-2500mm, nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n n\u0103m 17-20o<\/sup>C ho\u1eb7c 25-28o<\/sup>C, nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n th\u00e1ng n\u00f3ng nh\u1ea5t 27-30o<\/sup>C, nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n th\u00e1ng l\u1ea1nh nh\u1ea5t 14-20o<\/sup>C, nhi\u1ec7t \u0111\u1ed9 t\u1ed1i cao tuy\u1ec7t \u0111\u1ed1i 30-32o<\/sup>C, nhi\u1ec7t \u0111\u1ed9 t\u1ed1i th\u1ea5p tuy\u1ec7t \u0111\u1ed1i 10-14o<\/sup>C, c\u00f3 3-4 th\u00e1ng m\u01b0a \u00edt h\u01a1n 50mm, \u0111\u1ed9 cao 750-1500m so v\u1edbi m\u1ef1c n\u01b0\u1edbc bi\u1ec3n, \u0111\u1ecba h\u00ecnh d\u1ed1c 15-25o<\/sup>; lo\u1ea1i \u0111\u1ea5t thung l\u0169ng d\u1ed1c t\u1ee5, \u0111\u1ea5t ph\u00e8n trung b\u00ecnh v\u00e0 nh\u1eb9, \u0111\u1ea5t \u0111\u1ecf v\u00e0ng v\u00e0 \u0111\u1ea5t feralit m\u00f9n tr\u00ean n\u00fai, \u0111\u1ed9 d\u00e0y t\u1ea7ng \u0111\u1ea5t 50-100cm.<\/p>\nH\u1ea1n ch\u1ebf g\u00e2y tr\u1ed3ng \u1edf nh\u1eefng n\u01a1i c\u00f3 l\u01b0\u1ee3ng m\u01b0a b\u00ecnh qu\u00e2n n\u0103m <1500 ho\u1eb7c >2500mm, nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n n\u0103m <18o<\/sup>C ho\u1eb7c >28o<\/sup>C, nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n th\u00e1ng n\u00f3ng nh\u1ea5t >30o<\/sup>C, nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n th\u00e1ng l\u1ea1nh nh\u1ea5t 14<o<\/sup>C, nhi\u1ec7t \u0111\u1ed9 t\u1ed1i cao tuy\u1ec7t \u0111\u1ed1i >32o<\/sup>C, nhi\u1ec7t \u0111\u1ed9 t\u1ed1i th\u1ea5p tuy\u1ec7t \u0111\u1ed1i <10o<\/sup>C, c\u00f3 tr\u00ean 4 th\u00e1ng m\u01b0a \u00edt h\u01a1n 50mm, \u0111\u1ed9 cao tr\u00ean >1500m so v\u1edbi m\u1ef1c n\u01b0\u1edbc bi\u1ec3n, \u0111\u1ecba h\u00ecnh d\u1ed1c >25o<\/sup>; lo\u1ea1i \u0111\u1ea5t x\u00f3i m\u00f2n tr\u01a1 s\u1ecfi \u0111\u00e1, \u0111\u1ea5t m\u1eb7n m\u00f9a kh\u00f4, \u0111\u1ea5t m\u1eb7n th\u01b0\u1eddng xuy\u00ean, \u0111\u1ea5t ph\u00e8n n\u1eb7ng, \u0111\u1ea5t \u0111en v\u00e0 \u0111\u1ea5t than b\u00f9n, \u0111\u1ea5t c\u00e1t, \u0111\u1ed9 d\u00e0y t\u1ea7ng \u0111\u1ea5t <50cm.<\/p>\nDi\u1ec7n t\u00edch \u0111\u1ea5t t\u1ef1 nhi\u00ean to\u00e0n qu\u1ed1c th\u00edch h\u1ee3p \u0111\u1ec3 tr\u1ed3ng B\u1ea1ch \u0111\u00e0n n\u00e2u chi\u1ebfm\u00a0 24,7%, c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng 35,1%, \u00edt th\u00edch h\u1ee3p 40,3%.<\/p>\n
V\u1ee5 xu\u00e2n h\u00e8 tr\u1ed3ng v\u00e0o th\u00e1ng 3-5, v\u1ee5 thu \u0111\u00f4ng tr\u1ed3ng th\u00e1ng 8-10.<\/p>\n
Tr\u1ed3ng thu\u1ea7n lo\u00e0i, 1100 c\u00e2y\/ha, c\u1ef1 ly 3x3m ho\u1eb7c 1600 c\u00e2y\/ha, c\u1ef1 ly 3x2m.<\/p>\n
N\u01a1i c\u00f3 c\u1ecf may, c\u1ecf l\u00f4ng l\u1ee3n, c\u00e2y b\u1ee5i th\u01b0a sinh tr\u01b0\u1edfng k\u00e9m c\u1ea7n ph\u00e1t tr\u1eafng theo b\u0103ng r\u1ed9ng 2m. N\u1ebfu d\u1ed1c d\u01b0\u1edbi 15o<\/sup> d\u00f9ng c\u00e0y ng\u1ea7m k\u1ebft h\u1ee3p d\u1ecdn th\u1ef1c b\u00ec v\u00e0 l\u00e0m \u0111\u1ea5t.<\/p>\nN\u01a1i c\u00f3 t\u1ebf gu\u1ed9t ho\u1eb7c c\u00e2y b\u1ee5i d\u00e0y hay t\u1ebf gu\u1ed9t r\u1ea3i r\u00e1c xen c\u00e2y b\u1ee5i ph\u1ea3i ph\u00e1t d\u1ecdn s\u1ea1ch b\u0103ng tr\u1ed3ng r\u1ed9ng 2m, n\u1ebfu d\u00f9ng c\u00e0y ng\u1ea7m th\u00ec kh\u00f4ng c\u1ea7n ph\u1ea3i d\u1ecdn.<\/p>\n
Th\u1ef1c b\u00ec N\u1ee9a t\u00e9p xen \u00edt c\u00e2y b\u1ee5i, c\u1ecf, c\u00e2y b\u1ee5i xen c\u1ecf, lau ch\u00edt ch\u00e8 v\u00e8 c\u1ea7n ph\u00e1t tr\u1eafng, cu\u1ed1c l\u1eadt c\u00e1c g\u1ed1c lau ch\u00edt, ch\u00e8 v\u00e8, x\u1ebfp th\u00e0nh \u0111\u1ed1ng ho\u1eb7c th\u00e0nh b\u0103ng ngang d\u1ed1c.<\/p>\n
N\u01a1i d\u1ed1c d\u01b0\u1edbi 200<\/sup> th\u00ec c\u00e0y ng\u1ea7m 1 l\u01b0\u1ee1i s\u00e2u 60-70 cm, r\u1ed3i cu\u1ed1c h\u1ed1 30x30x30 cm. N\u01a1i d\u1ed1c tr\u00ean 200<\/sup> th\u00ec cu\u1ed1c th\u1ee7 c\u00f4ng theo h\u1ed1 k\u00edch th\u01b0\u1edbc 40x40x40 cm.<\/p>\nK\u1ebft h\u1ee3p khi l\u1ea5p h\u1ed1 b\u00f3n 300g ph\u00e2n h\u1eefu c\u01a1 vi sinh v\u00e0 200g NPK (25:58:17) cho 1 h\u1ed1.<\/p>\n
Tr\u1ed3ng d\u1eb7m c\u00e2y ch\u1ebft ngay sau khi tr\u1ed3ng 8-10 ng\u00e0y, c\u00f3 th\u1ec3 ph\u1ea3i ti\u1ebfn h\u00e0nh 2-3 \u0111\u1ee3t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u1ef7 l\u1ec7 s\u1ed1ng trong n\u0103m \u0111\u1ea7u \u0111\u1ea1t tr\u00ean 95%.<\/p>\n
Ch\u0103m s\u00f3c 3 n\u0103m li\u1ec1n:<\/p>\n
+ N\u0103m \u0111\u1ea7u ch\u0103m s\u00f3c 2 l\u1ea7n: <\/i>L\u1ea7n \u0111\u1ea7u sau khi tr\u1ed3ng 1-2 th\u00e1ng, ph\u00e1t th\u1ef1c b\u00ec tr\u00ean to\u00e0n di\u1ec7n t\u00edch, d\u1eaby c\u1ecf v\u00e0 vun x\u1edbi quanh g\u1ed1c v\u1edbi \u0111\u01b0\u1eddng k\u00ednh 80cm. L\u1ea7n 2 v\u00e0o th\u00e1ng 10-11, ph\u00e1t th\u1ef1c b\u00ec, c\u1eaft d\u00e2y leo, vun x\u1edbi quanh g\u1ed1c c\u00e2y v\u1edbi \u0111\u01b0\u1eddng k\u00ednh 80cm. C\u00e2y tr\u1ed3ng v\u1ee5 thu \u0111\u00f4ng ch\u1ec9 ch\u0103m s\u00f3c 1 l\u1ea7n v\u00e0o th\u00e1ng 10-11.<\/p>\n
+ N\u0103m th\u1ee9 2 ch\u0103m s\u00f3c 3 l\u1ea7n:<\/i> L\u1ea7n 1 v\u00e0o th\u00e1ng 3-4 nh\u01b0 ch\u0103m s\u00f3c l\u1ea7n 1 n\u0103m \u0111\u1ea7u. B\u00f3n th\u00fac l\u1ea7n \u0111\u1ea7u 200g NPK (5:10:3) cho 1 g\u1ed1c. L\u1ea7n 2 v\u00e0o th\u00e1ng 7-8, ph\u00e1t th\u1ef1c b\u00ec to\u00e0n di\u1ec7n, vun x\u1edbi quanh g\u1ed1c \u0111\u01b0\u1eddng k\u00ednh 1m, t\u1ec9a b\u1ecf c\u00e1c c\u00e0nh trong t\u1ea7m cao 1m. L\u1ea7n 3 v\u00e0o th\u00e1ng 10-11, ph\u00e1t th\u1ef1c b\u00ec c\u1ea1nh tranh c\u00e2y tr\u1ed3ng.<\/p>\n
+ N\u0103m th\u1ee9 3 ch\u0103m s\u00f3c 2 l\u1ea7n:<\/i> L\u1ea7n 1 v\u00e0o th\u00e1ng 3-4, ph\u00e1t th\u1ef1c b\u00ec tr\u00ean to\u00e0n di\u1ec7n t\u00edch, t\u1ec9a c\u00e0nh \u0111\u1ebfn t\u1ea7m cao 1,5-2,0m, d\u00e3y c\u1ecf quanh g\u1ed1c 1m. B\u00f3n th\u00fac l\u1ea7n hai 200g NPK\/c\u00e2y. L\u1ea7n 2 v\u00e0o th\u00e1ng 7-8, ph\u00e1t th\u1ef1c b\u00ec c\u1ea1nh tranh c\u00e2y tr\u1ed3ng tr\u00ean to\u00e0n di\u1ec7n t\u00edch, ch\u1eb7t c\u00e2y s\u00e2u b\u1ec7nh, ph\u00e1t d\u1eaby s\u1ea1ch c\u1ecf quanh g\u1ed1c c\u00e2y.<\/p>\n
Tu\u1ef3 m\u1ee9c \u0111\u1ed9 nhi\u1ec5m b\u1ec7nh ph\u1ea3i nh\u1ed5, c\u1eaft, \u0111\u1ed1t c\u00e1c c\u00e2y b\u1ecb b\u1ec7nh ho\u1eb7c ph\u1ea3i b\u1eaft, di\u1ec7t, phun thu\u1ed1c ph\u00f2ng tr\u1eeb hay ph\u00f2ng tr\u1eeb b\u1eb1ng c\u00e1c bi\u1ec7n ph\u00e1p t\u1ed5ng h\u1ee3p.<\/p>\n
Ph\u1ea3i l\u00e0m c\u00e1c b\u0103ng tr\u1eafng c\u1ea3n l\u1eeda, r\u1ed9ng 10-12m. Tr\u01b0\u1edbc m\u00f9a kh\u00f4 ph\u1ea3i \u1ee7i ho\u1eb7c ph\u00e1t d\u1ecdn th\u1ef1c b\u00ec, \u0111\u01b0a ra kh\u1ecfi b\u0103ng. C\u1ea5m tr\u00e2u, b\u00f2, ng\u01b0\u1eddi ph\u00e1 ho\u1ea1i r\u1eebng.<\/p>\n
5. Khai th\u00e1c, s\u01b0\u0309 du\u0323ng<\/b><\/p>\n
B\u1ea1ch \u0111\u00e0n n\u00e2u l\u00e0 c\u00e2y m\u1ecdc nhanh, cung c\u1ea5p g\u1ed7 nh\u1ecf v\u1edbi chu k\u1ef3 5-10 n\u0103m. G\u1ed7 m\u00e0u n\u00e2u nh\u1ea1t, th\u1edb m\u1ecbn, t\u1ef7 tr\u1ecdng 0,5-0,6, h\u01a1i m\u1ec1m, d\u1ec5 c\u01b0a x\u1ebb. S\u1ee3i g\u1ed7 ng\u1eafn, h\u00e0m l\u01b0\u1ee3ng xenlul\u00f4 cao v\u00e0 lignin th\u1ea5p.<\/p>\n
L\u00e0 m\u1ed9t trong nh\u1eefng lo\u00e0i c\u00e2y ch\u1ee7 l\u1ef1c \u0111\u1ec3 tr\u1ed3ng r\u1eebng c\u00f4ng nghi\u1ec7p cung c\u1ea5p nguy\u00ean li\u1ec7u gi\u1ea5y, s\u1ee3i, d\u0103m; c\u1ed9t \u0111i\u1ec7n, tr\u1ee5 m\u1ecf v\u00e0 c\u1ee7i \u0111un,… C\u00f3 th\u1ec3 tr\u1ed3ng r\u1eebng v\u1edbi chu k\u1ef3 15-20 n\u0103m l\u1ea5y g\u1ed7 \u0111\u01b0\u1eddng k\u00ednh 25-30cm, x\u1ebb g\u1ed7 h\u1ed9p, v\u00e1n l\u00e0m nh\u00e0, \u0111\u00f3ng \u0111\u1ed3 gia d\u1ee5ng, l\u00e0m c\u1ea7u, g\u1ed7 x\u00e2y d\u1ee5ng,…<\/p>\n
T\u00e1n l\u00e1 d\u00e0y, h\u1ea1n ch\u1ebf x\u00f3i m\u00f2n, r\u1eeda tr\u00f4i \u0111\u1ea5t t\u1ed1t h\u01a1n c\u00e1c lo\u00e0i b\u1ea1ch \u0111\u00e0n kh\u00e1c. H\u00ecnh d\u00e1ng \u0111\u1eb9p c\u00f3 th\u1ec3 tr\u1ed3ng c\u00e2y b\u00f3ng m\u00e1t, hoa \u0111\u1ec3 nu\u00f4i ong.<\/p>\n
Tu\u1ed5i khai th\u00e1c ch\u00ednh c\u1ee7a r\u1eebng cung c\u1ea5p nguy\u00ean li\u1ec7u gi\u1ea5y s\u1ee3i, v\u00e1n nh\u00e2n t\u1ea1o l\u00e0 7-8 n\u0103m. N\u0103ng su\u1ea5t r\u1eebng \u0111\u1ea1t 20 m3<\/sup>\/ha\/n\u0103m, s\u1ea3n l\u01b0\u1ee3ng 140-160 m3<\/sup>\/ha g\u1ed7. M\u00f9a khai th\u00e1c t\u1eeb cu\u1ed1i m\u00f9a kh\u00f4 \u0111\u1ebfn \u0111\u1ea7u m\u00f9a m\u01b0a \u0111\u1ec3 k\u1ebft h\u1ee3p t\u00e1i sinh ch\u1ed3i. Ph\u01b0\u01a1ng th\u1ee9c khai th\u00e1c ch\u00ednh l\u00e0 ch\u1eb7t tr\u1eafng tr\u00ean to\u00e0n b\u1ed9 di\u1ec7n t\u00edch. Ch\u1eb7t s\u00e1t g\u1ed1c, g\u1ed1c ch\u1eb7t kh\u00f4ng cao qu\u00e1 7-10 cm, g\u1ed1c ch\u1eb7t kh\u00f4ng b\u1ecb bong v\u1ecf. M\u1eb7t c\u1eaft ph\u1ea3i ph\u1eb3ng v\u00e0 h\u01a1i nghi\u00eang. \u0110\u01b0a to\u00e0n g\u1ed7 v\u00e0 c\u00e0nh l\u00e1 ra kh\u1ecfi r\u1eebng.<\/p>\nSau khi ch\u1eb7t, ch\u1ed3i m\u1ecdc \u0111\u01b0\u1ee3c 8-10 tu\u1ea7n, cao 80-100 cm th\u00ec ch\u1ecdn, t\u1ec9a ch\u1ed3i. Ch\u1ecdn v\u00e0 gi\u1eef l\u1ea1i 1 ch\u1ed3i m\u1eadp, th\u1eb3ng nh\u1ea5t m\u1ecdc s\u00e1t \u0111\u1ea5t \u1edf h\u01b0\u1edbng \u0111\u00f3n gi\u00f3. T\u1ec9a nhi\u1ec1u l\u1ea7n \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c ch\u1ed3i kh\u00e1c cho t\u1edbi khi ch\u1ed3i gi\u1eef l\u1ea1i cao tr\u00ean 2m.<\/p>\n
Ch\u0103m s\u00f3c r\u1eebng ch\u1ed3i trong 2 n\u0103m li\u1ec1n: N\u0103m \u0111\u1ea7u ch\u0103m s\u00f3c 2 l\u1ea7n, l\u1ea7n 1 v\u00e0o th\u00e1ng 3 v\u00e0 l\u1ea7n 2 v\u00e0o tr\u01b0\u1edbc m\u00f9a kh\u00f4. Ph\u00e1t c\u00e2y b\u1ee5i, d\u00e2y leo ch\u00e8n \u00e9p c\u00e2y ch\u1ed3i. Vun x\u1edbi quanh g\u1ed1c c\u00e2y v\u00e0 vun \u0111\u1ea5t v\u00e0o g\u1ed1c r\u1ed9ng 0,8m v\u00e0 l\u1ea5p k\u00edn g\u1ed1c ch\u1ed3i. N\u0103m th\u1ee9 2 ch\u0103m s\u00f3c 1 l\u1ea7n nh\u01b0 n\u0103m th\u1ee9 nh\u1ea5t v\u00e0o \u0111\u1ea7u m\u00f9a m\u01b0a. B\u1ea3o v\u1ec7 r\u1eebng ch\u1ed3i \u00e1p d\u1ee5ng nh\u01b0 r\u1eebng tr\u1ed3ng ban \u0111\u1ea7u \u0111\u1ebfn khi kh\u00e9p t\u00e1n.<\/p>\n","protected":false},"excerpt":{"rendered":"
B\u1ea0CH \u0110\u00c0N N\u00c2U T\u00ean kh\u00e1c: B\u1ea1ch \u0111\u00e0n ur\u00f4 T\u00ean khoa h\u1ecdc: Eucalyptus urophylla S.T.Blake H\u1ecd th\u1ef1c v\u1eadt: Sim (Myrtaceae) 1. \u0110\u1eb7c \u0111i\u1ec3m hi\u0300nh tha\u0301i C\u00e2y g\u1ed7 l\u1edbn, cao t\u1edbi 40-50m, \u0111\u01b0\u1eddng k\u00ednh 40-50cm, th\u00e2n th\u1eb3ng, c\u00e0nh nh\u00e1nh nh\u1ecf, t\u1ec9a c\u00e0nh t\u1ef1 nhi\u00ean t\u1ed1t, \u00edt m\u1ea5u m\u1eaft, \u0111\u1ed9 cao d\u01b0\u1edbi c\u00e0nh l\u1edbn. V\u1ecf m\u00e0u n\u00e2u, n\u1ee9t […]<\/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\/12737"}],"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=12737"}],"version-history":[{"count":4,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/12737\/revisions"}],"predecessor-version":[{"id":12750,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/12737\/revisions\/12750"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=12737"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=12737"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=12737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"BachdanNau\"](\"http:\/\/vafs.gov.vn\/vn\/wp-content\/uploads\/sites\/2\/2014\/04\/BachdanNau.jpg\")
<\/a><\/p>\n