{"id":12743,"date":"2014-04-16T09:35:52","date_gmt":"2014-04-16T02:35:52","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/?p=12743"},"modified":"2014-04-16T09:41:24","modified_gmt":"2014-04-16T02:41:24","slug":"ky-thuat-trong-bach-dan-trang-caman","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/ky-thuat-trong-bach-dan-trang-caman\/","title":{"rendered":"K\u1ef9 thu\u1eadt tr\u1ed3ng B\u1ea1ch \u0111\u00e0n tr\u1eafng Caman"},"content":{"rendered":"

BA\u0323CH \u0110A\u0300N TR\u0102\u0301NG CAMAN<\/b><\/p>\n

T\u00ean kh\u00e1c: B\u1ea1ch \u0111\u00e0n caman<\/p>\n

T\u00ean khoa h\u1ecdc: Eucalyptus camaldulensis<\/i> Dehn.<\/p>\n

H\u1ecd th\u1ef1c v\u1eadt: Sim (Myrtaceae)<\/p>\n

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

C\u00e2y g\u1ed7 l\u1edbn, cao 30-40m, \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c 40-50cm, th\u00e2n th\u1eb3ng tr\u00f2n \u0111\u1ec1u. V\u1ecf m\u00e0u x\u00e1m tr\u1eafng ho\u1eb7c x\u00e1m h\u01a1i xanh, nh\u1eb5n, bong t\u1eebng m\u1ea3ng m\u1ecfng. Ph\u00eda g\u1ea7n g\u1ed1c v\u1ecf n\u1ee9t d\u1ecdc, kh\u00f4ng bong. C\u00e0nh non m\u00e0u n\u00e2u \u0111\u1ecf, m\u1ea3nh, r\u1ee7 xu\u1ed1ng.<\/p>\n

L\u00e1 \u0111\u01a1n m\u1ecdc c\u00e1ch, c\u00f3 m\u00f9i th\u01a1m. L\u00e1 non h\u01a1i c\u00f3 ph\u1ea5n, h\u00ecnh tr\u1ee9ng ho\u1eb7c ng\u1ecdn gi\u00e1o, c\u00f3 cu\u1ed1ng m\u1ea3nh. L\u00e1 th\u00e0nh th\u1ee5c h\u00ecnh ng\u1ecdn gi\u00e1o cong d\u1ea1ng l\u01b0\u1ee1i li\u1ec1m, nh\u1ecdn d\u1ea7n v\u1ec1 ph\u00eda \u0111\u1ea7u, d\u00e0i 10-30cm, r\u1ed9ng 1,5-3,5cm. G\u00e2n gi\u1eefa m\u00e0u n\u00e2u, g\u00e2n b\u00ean r\u00f5.<\/p>\n

C\u1ee5m hoa d\u1ea1ng t\u00e1n \u1edf n\u00e1ch l\u00e1, mang 4-8 hoa, n\u1edf th\u00e1ng 3-4. Qu\u1ea3 h\u00ecnh b\u00e1n c\u1ea7u, d\u00e0i 0,7-0,8cm, r\u1ed9ng 0,5-0,6cm, m\u1edf theo 3 van h\u00ecnh tam gi\u00e1c, ch\u00edn th\u00e1ng 7-8 \u1edf mi\u1ec1n B\u1eafc v\u00e0 th\u00e1ng 5-6 \u1edf mi\u1ec1n Nam.<\/p>\n

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

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

C\u00e2y nguy\u00ean s\u1ea3n \u1edf \u00d4xtr\u00e2ylia, ph\u00e2n b\u1ed1 r\u1ed9ng \u1edf v\u00f9ng nhi\u1ec7t \u0111\u1edbi t\u1eeb 15 \u0111\u1ebfn 18o<\/sup> v\u0129 Nam, v\u00f9ng \u0111\u1ed3i n\u00fai th\u1ea5p d\u01b0\u1edbi 600m so v\u1edbi m\u1ef1c n\u01b0\u1edbc bi\u1ec3n. Lo\u00e0i c\u00e2y nh\u1eadp n\u1ed9i tr\u1ed3ng \u1edf nhi\u1ec1u n\u01b0\u1edbc tr\u00ean th\u1ebf gi\u1edbi, \u0111\u01b0\u1ee3c tr\u1ed3ng \u1edf Vi\u1ec7t Nam t\u1eeb l\u00e2u, \u1edf c\u00e1c v\u00f9ng \u0111\u1ed3ng b\u1eb1ng, v\u00f9ng c\u00e1t ven bi\u1ec3n, v\u00f9ng \u0111\u1ed3i \u0111\u1ebfn v\u00f9ng n\u00fai, su\u1ed1t t\u1eeb B\u1eafc v\u00e0o Nam.<\/p>\n

C\u00e2y sinh tr\u01b0\u1edfng nhanh, bi\u00ean \u0111\u1ed9 sinh th\u00e1i r\u1ed9ng, ch\u1ecbu \u0111\u01b0\u1ee3c h\u1ea1n, nh\u01b0ng c\u0169ng ch\u1ecbu \u0111\u01b0\u1ee3c \u00fang trong th\u1eddi gian ng\u1eafn. Sinh tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n t\u1ed1t \u1edf n\u01a1i c\u00f3 l\u01b0\u1ee3ng m\u01b0a 1500-2500 mm\/n\u0103m, nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh th\u00e1ng l\u1ea1nh nh\u1ea5t 15o<\/sup>C, th\u00e1ng n\u00f3ng nh\u1ea5t 26-29o<\/sup>C.<\/p>\n

Tr\u1ed3ng th\u00edch h\u1ee3p tr\u00ean \u0111\u1ea5t \u0111\u1ed3i tr\u1ecdc, sau n\u01b0\u01a1ng r\u1eaby, c\u00f3 \u0111\u1ed9 cao d\u01b0\u1edbi 200m so v\u1edbi m\u1ef1c n\u01b0\u1edbc bi\u1ec3n, d\u1ed1c d\u01b0\u1edbi 15-20o<\/sup>, c\u00f3 th\u00e0nh ph\u1ea7n c\u01a1 gi\u1edbi th\u1ecbt nh\u1eb9, s\u00e9t nh\u1eb9, c\u00e1t pha \u0111\u1ebfn th\u1ecbt trung b\u00ecnh, tho\u00e1t n\u01b0\u1edbc, \u0111\u1ed9 d\u00e0y >70cm, pH=4-6, c\u00f3 th\u1ef1c b\u00ec c\u1ecf l\u00f4ng l\u1ee3n, sim mua, t\u1ebf gu\u1ed9t. Sinh tr\u01b0\u1edfng \u0111\u01b0\u1ee3c tr\u00ean c\u1ed3n, b\u00e3i c\u00e1t c\u1ed1 \u0111\u1ecbnh kh\u00f4ng ng\u1eadp n\u01b0\u1edbc ho\u1eb7c tr\u00ean b\u00e3i c\u00e1t th\u1ea5p, \u0111\u1ea5t ph\u00e8n \u0111\u01b0\u1ee3c l\u00ean l\u00edp.<\/p>\n

Kh\u1ea3 n\u0103ng t\u00e1i sinh ch\u1ed3i r\u1ea5t m\u1ea1nh, n\u00ean vi\u1ec7c kinh doanh r\u1eebng ch\u1ed3i \u0111\u1ea1t k\u1ebft qu\u1ea3 t\u1ed1t.<\/p>\n

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

3.1. \u01af\u01a1m t\u1ea1o c\u00e2y con t\u1eeb h\u1ea1t<\/i><\/b><\/p>\n

H\u1ea1t gi\u1ed1ng:<\/i><\/p>\n

L\u1ea5y gi\u1ed1ng \u1edf l\u00e2m ph\u1ea7n gi\u1ed1ng ho\u1eb7c nh\u1eefng c\u00e2y \u0111\u01b0\u1ee3c tuy\u1ec3n ch\u1ecdn t\u1eeb 8 tu\u1ed5i tr\u1edf l\u00ean thu\u1ed9c c\u00e1c xu\u1ea5t x\u1ee9 Katherine, Kennedy river, Morehead river, Petford area, Gibb river.<\/p>\n

Thu h\u00e1i gi\u1ed1ng v\u00e0o th\u00e1ng 7-8 (mi\u1ec1n B\u1eafc), th\u00e1ng 5-6 (mi\u1ec1n Nam) khi v\u1ecf qu\u1ea3 chuy\u1ec3n t\u1eeb m\u00e0u xanh nh\u1ea1t sang n\u00e2u th\u1eabm, cu\u1ed1ng qu\u1ea3 m\u1ed1c tr\u1eafng, n\u1eafp qu\u1ea3 ch\u01b0a m\u1edf, h\u1ea1t m\u00e0u n\u00e2u, m\u00e0y m\u00e0u n\u00e2u nh\u1ea1t.<\/p>\n

\u1ee6 qu\u1ea3 th\u00e0nh \u0111\u1ed1ng n\u01a1i tho\u00e1ng 2-3 ng\u00e0y, m\u1ed7i ng\u00e0y \u0111\u1ea3o 1 l\u1ea7n. Khi qu\u1ea3 ch\u00edn r\u1ea3i \u0111\u1ec1u tr\u00ean v\u1ea3i b\u1ea1t ho\u1eb7c nong, nia ph\u01a1i d\u01b0\u1edbi n\u1eafng nh\u1eb9 2-3 ng\u00e0y \u0111\u1ec3 t\u00e1ch h\u1ea1t, r\u1ed3i ph\u01a1i l\u1ea1i 1-2 n\u1eafng sau \u0111\u00f3 s\u00e0ng s\u1ea3y lo\u1ea1i b\u1ecf t\u1ea1p v\u1eadt v\u00e0 b\u1ea3o qu\u1ea3n trong chum v\u1ea1i, th\u00f9ng g\u1ed7 \u0111\u1ec3 n\u01a1i tho\u00e1ng m\u00e1t, duy tr\u00ec s\u1ee9c s\u1ed1ng c\u1ee7a h\u1ea1t \u0111\u01b0\u1ee3c 10-12 th\u00e1ng. Ho\u1eb7c gi\u1eef h\u1ea1t \u1edf nhi\u1ec7t \u0111\u1ed9 5-10o<\/sup>C th\u00ec duy tr\u00ec s\u1ee9c s\u1ed1ng c\u1ee7a h\u1ea1t \u0111\u01b0\u1ee3c 2-3 n\u0103m.<\/p>\n

Chu k\u1ef3 sai qu\u1ea3 2 n\u0103m, s\u1ea3n l\u01b0\u1ee3ng c\u1ee7a l\u00e2m ph\u1ea7n 10 tu\u1ed5i l\u00e0 15kg\/ha\/n\u0103m. C\u1ee9 7-8kg qu\u1ea3 thu \u0111\u01b0\u1ee3c 1kg h\u1ea1t c\u00f3 250000-300000 h\u1ea1t. T\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m >90%, \u0111\u1ed9 thu\u1ea7n 10-12%.<\/p>\n

Gieo \u01b0\u01a1m:<\/i><\/p>\n

Th\u1eddi v\u1ee5 gieo \u01b0\u01a1m t\u1ea1o c\u00e2y con tr\u01b0\u1edbc th\u1eddi v\u1ee5 tr\u1ed3ng r\u1eebng 3-4 th\u00e1ng. Cho h\u1ea1t v\u00e0o t\u00fai v\u1ea3i, ng\u00e2m trong n\u01b0\u1edbc \u1ea5m 35-40o<\/sup>C, \u0111\u1ec3 ngu\u1ed9i d\u1ea7n trong 6-12 gi\u1edd, v\u1edbt ra hong kh\u00f4 n\u01a1i tho\u00e1ng m\u00e1t, r\u1ed3i cho v\u00e0o t\u00fai v\u1ea3i \u1ee7, r\u1eeda chua b\u1eb1ng n\u01b0\u1edbc \u1ea5m m\u1ed7i ng\u00e0y 1 l\u1ea7n, sau 3-4 ng\u00e0y h\u1ea1t n\u1ee9t nanh \u0111em gieo tr\u00ean lu\u1ed1ng.<\/p>\n

Tr\u1ed9n h\u1ea1t v\u1edbi c\u00e1t ho\u1eb7c \u0111\u1ea5t b\u1ed9t v\u1edbi t\u1ef7 l\u1ec7 1 h\u1ea1t: 4 \u0111\u1ea5t (theo kh\u1ed1i l\u01b0\u1ee3ng), v\u00e3i \u0111\u1ec1u 1 kg h\u1ea1t tr\u00ean 60-100m2 <\/sup>m\u1eb7t lu\u1ed1ng. D\u00f9ng \u0111\u1ea5t m\u1ecbn t\u01a1i r\u1eafc \u0111\u1ec1u ph\u1ee7 k\u00edn h\u1ea1t, r\u1ed3i ph\u1ee7 m\u1ed9t l\u1edbp r\u01a1m r\u1ea1 m\u1ecfng k\u00edn m\u1eb7t lu\u1ed1ng. H\u00e0ng ng\u00e0y d\u00f9ng \u00f4 doa l\u1ed7 nh\u1ecf t\u01b0\u1edbi nh\u1eb9, \u0111\u1ec1u, tr\u00e1nh tr\u00f4i h\u1ea1t. L\u00e0m gi\u00e0n che b\u00f3ng 70-80%.<\/p>\n

Sau 5-6 ng\u00e0y c\u00e2y m\u1ea7m cao 2-3cm, nh\u1ed5 c\u00e2y, d\u00f9ng que nh\u1ecf ch\u1ecdc l\u1ed7, c\u1ea5y v\u00e0o b\u1ea7u. D\u00f9ng v\u1ecf b\u1ea7u P\u00f4ly\u00eatylen k\u00edch th\u01b0\u1edbc 7x12cm, ru\u1ed9t b\u1ea7u g\u1ed3m 80-90% \u0111\u1ea5t m\u1eb7t v\u01b0\u1eddn \u01b0\u01a1m + 10-20% ph\u00e2n chu\u1ed3ng hoai + 1% supe l\u00e2n. <\/b>C\u1ea5y xong c\u1ea7n t\u01b0\u1edbi nh\u1eb9 \u0111\u1ec3 r\u1eeda l\u00e1 v\u00e0 l\u00e0m ch\u1eb7t g\u1ed1c. Sau 7-10 ng\u00e0y ki\u1ec3m tra, c\u1ea5y d\u1eb7m c\u00e2y b\u1ecb ch\u1ebft.<\/p>\n

T\u01b0\u1edbi n\u01b0\u1edbc \u0111\u1ee7 \u1ea9m cho c\u00e2y trong 3 th\u00e1ng \u0111\u1ea7u, m\u1ed7i ng\u00e0y t\u01b0\u1edbi 1 l\u1ea7n, l\u01b0\u1ee3ng t\u01b0\u1edbi 4-5l\u00edt\/m2<\/sup>. \u0110\u1ecbnh k\u1ef3 15 ng\u00e0y l\u00e0m c\u1ecf ph\u00e1 v\u00e1ng 1 l\u1ea7n v\u00e0 t\u01b0\u1edbi n\u01b0\u1edbc ph\u00e2n chu\u1ed3ng hoai ho\u1eb7c ph\u00e2n NPK(5:10:3) pha lo\u00e3ng 1%.<\/p>\n

N\u1ebfu c\u00e2y b\u1ecb v\u00e0ng c\u00f2i ho\u1eb7c b\u1ea1c l\u00e1 d\u00f9ng sunph\u00e1t \u0111\u1ea1m v\u00e0 supe l\u00e2n pha 0,1-0,2%, t\u01b0\u1edbi 2,5 l\u00edt\/m2<\/sup>, hai ng\u00e0y t\u01b0\u1edbi ph\u00e2n 1 l\u1ea7n, sau t\u01b0\u1edbi ph\u00e2n ph\u1ea3i t\u01b0\u1edbi n\u01b0\u1edbc l\u00e3 r\u1eeda l\u00e1.<\/p>\n

Ph\u00f2ng tr\u1eeb b\u1ec7nh th\u1ed1i c\u1ed5 r\u1ec5 b\u1eb1ng Benlat pha theo t\u1ef7 l\u1ec7 1g v\u1edbi 10 l\u00edt n\u01b0\u1edbc phun \u0111\u1ec1u tr\u00ean m\u1eb7t lu\u1ed1ng b\u1ea7u \u0111\u1ea5t. N\u1ebfu b\u1ec7nh xu\u1ea5t hi\u1ec7n, pha n\u1ed3ng \u0111\u1ed9 6g\/ 10 l\u00edt n\u01b0\u1edbc t\u01b0\u1edbi phun cho 100m2<\/sup>, m\u1ed7i tu\u1ea7n 2 l\u1ea7n, phun trong 2-3 l\u1ea7n.<\/p>\n

Ti\u00eau chu\u1ea9n c\u00e2y \u0111em tr\u1ed3ng: <\/i><\/p>\n

C\u00e2y \u01b0\u01a1m 3-4 th\u00e1ng, cao 25-45cm, \u0111\u01b0\u1eddng k\u00ednh c\u1ed5 r\u1ec5 3mm, kho\u1ebb, kh\u00f4ng b\u1ecb s\u00e2u b\u1ec7nh, kh\u00f4ng c\u1ee5t ng\u1ecdn, \u0111\u1ea5t trong b\u1ea7u kh\u00f4ng b\u1ecb v\u1ee1 n\u00e1t.<\/p>\n

3.2. \u01af\u01a1m t\u1ea1o c\u00e2y con b\u1eb1ng hom<\/i><\/b><\/p>\n

V\u1eadt li\u1ec7u gi\u1ed1ng:<\/i><\/p>\n

S\u1eed d\u1ee5ng c\u00e1c d\u00f2ng \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn l\u00e0 gi\u1ed1ng ti\u1ebfn b\u1ed9 k\u1ef9 thu\u1eadt v\u00e0 b\u1eaft bu\u1ed9c ph\u1ea3i nh\u00e2n gi\u1ed1ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p gi\u00e2m hom ho\u1eb7c nu\u00f4i c\u1ea5y m\u00f4. C\u00e1c d\u00f2ng B\u1ea1ch \u0111\u00e0n tr\u1eafng SM16, SM23 \u00e1p d\u1ee5ng v\u00f9ng \u0110\u00f4ng Nam B\u1ed9, Nam Trung B\u1ed9 v\u00e0 nh\u1eefng n\u01a1i c\u00f3 \u0111i\u1ec1u ki\u1ec7n l\u1eadp \u0111\u1ecba t\u01b0\u01a1ng t\u1ef1; d\u00f2ng EF23, EF24, EF39, EF55 \u00e1p d\u1ee5ng v\u00f9ng \u0110\u00f4ng Nam B\u1ed9 v\u00e0 nh\u1eefng n\u01a1i c\u00f3 \u0111i\u1ec1u ki\u1ec7n l\u1eadp \u0111\u1ecba t\u01b0\u01a1ng t\u1ef1; d\u00f2ng C9, C55, C159, \u00e1p d\u1ee5ng v\u00f9ng Nam Trung B\u1ed9 v\u00e0 nh\u1eefng n\u01a1i c\u00f3 \u0111i\u1ec1u ki\u1ec7n l\u1eadp \u0111\u1ecba t\u01b0\u01a1ng t\u1ef1.<\/p>\n

S\u1eed d\u1ee5ng c\u00e1c d\u00f2ng b\u1ea1ch \u0111\u00e0n lai gi\u1eefa B\u1ea1ch \u0111\u00e0n tr\u1eafng v\u1edbi B\u1ea1ch \u0111\u00e0n n\u00e2u \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn l\u00e0 gi\u1ed1ng ti\u1ebfn b\u1ed9 k\u1ef9 thu\u1eadt, g\u1ed3m UC1, UC2 \u00e1p d\u1ee5ng cho B\u00ecnh Ph\u01b0\u1edbc v\u00e0 nh\u1eefng n\u01a1i c\u00f3 \u0111i\u1ec1u ki\u1ec7n l\u1eadp \u0111\u1ecba t\u01b0\u01a1ng t\u1ef1; d\u00f2ng CU9, UC80 \u00e1p d\u1ee5ng cho Ph\u00fa Th\u1ecd v\u00e0 nh\u1eefng n\u01a1i c\u00f3 \u0111i\u1ec1u ki\u1ec7n l\u1eadp \u0111\u1ecba t\u01b0\u01a1ng t\u1ef1.<\/p>\n

X\u00e2y d\u1ef1ng v\u01b0\u1eddn gi\u1ed1ng l\u1ea5y hom:<\/i><\/p>\n

V\u01b0\u1eddn gi\u1ed1ng l\u1ea5y hom \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng g\u1ea7n v\u01b0\u1eddn \u01b0\u01a1m, n\u01a1i c\u00f3 \u0111\u1ea5t tho\u00e1t n\u01b0\u1edbc t\u1ed1t, c\u00f3 di\u1ec7n t\u00edch b\u1eb1ng 1\/500 di\u1ec7n t\u00edch r\u1eebng c\u1ea7n tr\u1ed3ng c\u00e2y hom h\u00e0ng n\u0103m.<\/p>\n

C\u00e2y gi\u1ed1ng l\u1ea5y hom l\u00e0 c\u00e2y m\u00f4 ho\u1eb7c c\u00e2y hom c\u1ee7a c\u00e1c d\u00f2ng b\u1ea1ch \u0111\u00e0n \u01b0u tr\u1ed9i \u0111\u00e3 \u0111\u01b0\u1ee3c tuy\u1ec3n ch\u1ecdn, \u0111\u01b0\u1ee3c tr\u1ed3ng tr\u01b0\u1edbc \u0111\u1ee3t thu ch\u1ed3i \u0111\u1ea7u \u00edt nh\u1ea5t 2 th\u00e1ng. C\u1ef1 ly tr\u1ed3ng 30x40cm, b\u00f3n l\u00f3t 1kg ph\u00e2n chu\u1ed3ng hoai, 50g ph\u00e2n NPK (5:10:3) ho\u1eb7c 200g ph\u00e2n l\u00e2n h\u1eefu c\u01a1 vi sinh Thi\u00ean n\u00f4ng cho 1 c\u00e2y gi\u1ed1ng.<\/p>\n

L\u00e0m c\u1ecf, vun g\u1ed1c sau khi tr\u1ed3ng 1 th\u00e1ng v\u00e0 l\u1eb7p l\u1ea1i theo \u0111\u1ecbnh k\u1ef3 2 th\u00e1ng 1 l\u1ea7n. Sau m\u1ed7i l\u1ea7n thu ho\u1ea1ch ch\u1ed3i ph\u1ea3i phun Ben l\u00e1t n\u1ed3ng \u0111\u1ed9 0,15-0,3%, x\u1edbi \u0111\u1ea5t, vun g\u1ed1c c\u00e2y.<\/p>\n

Sau khi tr\u1ed3ng kho\u1ea3ng 2 th\u00e1ng, d\u00f9ng k\u00e9o c\u1eaft ngang th\u00e2n c\u00e2y c\u00e1ch m\u1eb7t \u0111\u1ea5t 20-30cm \u0111\u1ec3 \u0111\u1ed1n t\u1ea1o ch\u1ed3i, r\u1ed3i phun Ben l\u00e1t n\u1ed3ng \u0111\u1ed9 0,15-0,3% \u01b0\u1edbt c\u1ea3 c\u00e2y \u0111\u1ec3 kh\u1eed tr\u00f9ng. Sau khi \u0111\u1ed1n 28-30 ng\u00e0y c\u00f3 th\u1ec3 thu ho\u1ea1ch l\u1ee9a ch\u1ed3i \u0111\u1ea7u ti\u00ean.<\/p>\n

H\u00e0ng n\u0103m ph\u1ea3i tr\u1ebb h\u00f3a v\u01b0\u1eddn gi\u1ed1ng tr\u01b0\u1edbc th\u1eddi v\u1ee5 gi\u00e2m hom 1 th\u00e1ng, \u0111\u1ed1n b\u1ecf c\u00e1c ch\u1ed3i y\u1ebfu, \u0111\u1ec3 l\u1ea1i 1-2 ch\u1ed3i kh\u1ecfe nh\u1ea5t. Sau m\u1ed7i l\u1ea7n \u0111\u1ed1n c\u00e2y ph\u1ea3i phun Ben l\u00e1t n\u1ed3ng \u0111\u1ed9 0,15%, l\u00e0m c\u1ecf, x\u1edbi \u0111\u1ea5t quanh g\u1ed1c c\u00e2y, b\u00f3n th\u00fac cho m\u1ed7i c\u00e2y 50g NPK (5:10:3). Ch\u1ec9 s\u1eed d\u1ee5ng c\u00e2y gi\u1ed1ng \u0111\u1ec3 l\u1ea5y hom trong 3 n\u0103m, sau \u0111\u00f3 ph\u1ea3i thay b\u1eb1ng c\u00e2y m\u00f4 m\u1edbi ho\u1eb7c c\u00e2y hom th\u1ebf h\u1ec7 \u0111\u1ea7u nh\u00e2n t\u1eeb c\u00e2y m\u00f4.<\/p>\n

Gi\u00e2m hom:<\/i><\/p>\n

D\u00f9ng k\u00e9o s\u1eafc c\u1eaft ch\u1ed3i \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 \u0111\u00f3 s\u1ebd c\u1eaft \u0111\u1ec3 t\u1ea1o hom. M\u1ed7i ch\u1ed3i ch\u1ec9 n\u00ean l\u1ea5y 1 hom ng\u1ecdn d\u00e0i 7-10cm, mang 6-8 l\u00e1. V\u1ebft c\u1eaft c\u00e1ch \u0111\u1ed1t d\u01b0\u1edbi c\u00f9ng 0,2cm, sau \u0111\u00f3 c\u1eaft b\u1ecf 2 l\u00e1 d\u01b0\u1edbi c\u00f9ng v\u00e0 1\/2 phi\u1ebfn c\u1ee7a 2 l\u00e1 k\u1ebf ti\u1ebfp.<\/p>\n

Hom c\u1eaft xong ph\u1ea3i ng\u00e2m ngay v\u00e0o dung d\u1ecbch Ben l\u00e1t 0,02% trong th\u1eddi gian 15-20 ph\u00fat \u0111\u1ec3 ph\u00f2ng n\u1ea5m b\u1ec7nh. Sau \u0111\u00f3 x\u1eed l\u00fd thu\u1ed1c k\u00edch th\u00edch ra r\u1ec5 IBA n\u1ed3ng \u0111\u1ed9 0,02% ho\u1eb7c ABT b\u1ed9t n\u1ed3ng \u0111\u1ed9 0,03%.<\/p>\n

D\u00f9ng v\u1ecf b\u1ea7u Poly\u00eatylen c\u1ee1 6x11cm, \u0111\u00f3ng \u0111\u1ea7y h\u1ed7n h\u1ee3p: 1\/3 c\u00e1t ph\u00eda tr\u00ean + 2\/3 \u0111\u1ea5t ph\u00eda d\u01b0\u1edbi. Tr\u01b0\u1edbc khi c\u1ea5y hom 12 gi\u1edd, t\u01b0\u1edbi dung d\u1ecbch Ben l\u00e1t 0,06% ho\u1eb7c thu\u1ed1c t\u00edm 0,1% v\u1edbi li\u1ec1u 10l\u00edt n\u01b0\u1edbc cho 50m2<\/sup> m\u1eb7t b\u1ea7u \u0111\u1ec3 ph\u00f2ng ch\u1ed1ng n\u1ea5m. T\u01b0\u1edbi n\u01b0\u1edbc \u1ea9m to\u00e0n b\u1ed9 ru\u1ed9t b\u1ea7u tr\u01b0\u1edbc khi c\u1ea5y hom. D\u00f9ng que ch\u1ecdc 1 l\u1ed7 s\u00e2u 2-3cm \u1edf gi\u1eefa b\u1ea7u, \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 l\u1edbn h\u01a1n g\u1ed1c hom. C\u1ea5y hom s\u00e2u 2-3cm, d\u00f9ng ng\u00f3n tay \u1ea5n nh\u1eb9 \u0111\u1ea5t xung quanh g\u1ed1c hom.<\/p>\n

N\u1ebfu v\u01b0\u1eddn \u01b0\u01a1m \u1edf xa c\u00f3 th\u1ec3 gi\u00e2m hom v\u00e0o c\u00e1t th\u00f4 s\u1ea1ch, \u0111\u1ebfn khi ra r\u1ec5 m\u1edbi c\u1ea5y v\u00e0o b\u1ea7u \u0111\u1ea5t nh\u01b0 tr\u00ean.<\/p>\n

Ch\u0103m s\u00f3c hom gi\u00e2m:<\/i><\/p>\n

Ngay sau khi c\u1ea5y hom ph\u1ea3i ph\u1ee7 nilon l\u00ean khung v\u00f2m \u0111\u1ec3 gi\u1eef \u1ea9m v\u00e0 t\u01b0\u1edbi phun s\u01b0\u01a1ng cho hom h\u00e0ng ng\u00e0y. Kho\u1ea3ng c\u00e1ch gi\u1eefa 2 l\u1ea7n t\u01b0\u1edbi phun l\u00e0 30-40 ph\u00fat, m\u1ed7i l\u1ea7n phun 7-10 gi\u00e2y.<\/p>\n

Sau kho\u1ea3ng 3-5 tu\u1ea7n, c\u00e2y hom c\u00f3 b\u1ed9 r\u1ec5 ph\u00e1t tri\u1ec3n ho\u00e0n ch\u1ec9nh th\u00ec ng\u1eebng t\u01b0\u1edbi phun n\u01b0\u1edbc cho c\u00e2y hom v\u00e0 chuy\u1ec3n b\u1ea7u c\u00e2y hom ra ngo\u00e0i v\u01b0\u1eddn \u0111\u1ec3 nu\u00f4i d\u01b0\u1ee1ng. V\u1edbi hom gi\u00e2m trong c\u00e1t, sau khi c\u1ea5y 2-3 tu\u1ea7n hom ra r\u1ec5 d\u00e0i 1,2-2cm, c\u1ea5y v\u00e0o b\u1ea7u \u0111\u1ea5t v\u00e0 ti\u1ebfp t\u1ee5c che n\u1eafng nh\u01b0 \u1edf nh\u00e0 gi\u00e2m hom kho\u1ea3ng 1 tu\u1ea7n, khi c\u00e2y hom \u1ed5n \u0111\u1ecbnh m\u1edbi d\u1ee1 b\u1ecf gi\u00e0n che.<\/p>\n

\u0110\u1ecbnh k\u1ef3 1 tu\u1ea7n t\u01b0\u1edbi ph\u00e2n 1 l\u1ea7n, li\u1ec1u l\u01b0\u1ee3ng 1kg NPK (5:10:3) h\u00f2a tan trong 33 l\u00edt n\u01b0\u1edbc, t\u01b0\u1edbi cho 5000 c\u00e2y, r\u1ed3i t\u01b0\u1edbi n\u01b0\u1edbc r\u1eeda l\u00e1. \u0110\u1ecbnh k\u1ef3 m\u1ed7i tu\u1ea7n phun Benl\u00e1t 1 l\u1ea7n v\u1edbi n\u1ed3ng \u0111\u1ed9 0,06%, li\u1ec1u l\u01b0\u1ee3ng 10 l\u00edt cho 50m2<\/sup> b\u1ea7u c\u00e2y. Sau khi chuy\u1ec3n c\u00e2y hom ra v\u01b0\u1eddn \u01b0\u01a1m 2 tu\u1ea7n ph\u1ea3i ph\u00e2n lo\u1ea1i c\u00e2y \u0111\u1ec3 c\u00f3 ch\u1ebf \u0111\u1ed9 ch\u0103m s\u00f3c ph\u00f9 h\u1ee3p. Ng\u1eebng t\u01b0\u1edbi ph\u00e2n tr\u01b0\u1edbc khi \u0111em c\u00e2y \u0111i tr\u1ed3ng 2 tu\u1ea7n.<\/p>\n

Ti\u00eau chu\u1ea9n c\u00e2y hom \u0111em tr\u1ed3ng:<\/i><\/p>\n

C\u00e2y cao 20-30cm, \u0111\u01b0\u1eddng k\u00ednh c\u1ed5 r\u1ec5 >3mm, c\u00e2y xanh \u0111\u1eb9p, kh\u1ecfe m\u1ea1nh, kh\u00f4ng s\u00e2u b\u1ec7nh.<\/p>\n

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

\u00c1p d\u1ee5ng ti\u00eau chu\u1ea9n ng\u00e0nh QPN 8-89 – Quy ph\u1ea1m tr\u1ed3ng r\u1eebng b\u1ea1ch \u0111\u00e0n tr\u1eafng caman, ban h\u00e0nh k\u00e8m theo quy\u1ebft \u0111\u1ecbnh s\u1ed1 456\/LS-CNR ng\u00e0y 4\/9\/1989 c\u1ee7a B\u1ed9 L\u00e2m nghi\u1ec7p.<\/p>\n

Th\u1eddi v\u1ee5 tr\u1ed3ng \u1edf c\u00e1c t\u1ec9nh v\u00f9ng c\u00e1t ven bi\u1ec3n B\u1eafc Trung B\u1ed9 th\u00e1ng 10-12, c\u00e1c t\u1ec9nh Nam Trung B\u1ed9 th\u00e1ng 9-10. Ch\u1ecdn ng\u00e0y c\u00f3 m\u01b0a ho\u1eb7c tr\u1eddi r\u00e2m m\u00e1t, \u0111\u1ea5t trong h\u1ed1 \u0111\u1ee7 \u1ea9m \u0111\u1ec3 tr\u1ed3ng r\u1eebng.<\/p>\n

X\u1eed l\u00fd th\u1ef1c b\u00ec theo b\u0103ng, \u0111\u00e0o h\u1ed1 30x30x30cm ho\u1eb7c 40x40x40cm. N\u01a1i c\u00f3 \u0111i\u1ec1u ki\u1ec7n c\u00f3 th\u1ec3 c\u00e0y \u0111\u1ea5t theo b\u0103ng ho\u1eb7c c\u00e0y to\u00e0n di\u1ec7n tr\u01b0\u1edbc khi \u0111\u00e0o h\u1ed1.<\/p>\n

C\u00f3 th\u1ec3 tr\u1ed3ng thu\u1ea7n lo\u00e0i ho\u1eb7c h\u1ed7n giao theo h\u00e0ng hay theo b\u0103ng v\u1edbi c\u00e1c lo\u00e0i keo tai t\u01b0\u1ee3ng, keo l\u00e1 tr\u00e0m, keo l\u00e1 li\u1ec1m, phi lao tr\u00ean c\u00e1c l\u1eadp \u0111\u1ecba b\u00e3i c\u00e1t c\u1ed1 \u0111\u1ecbnh kh\u00f4ng ng\u1eadp n\u01b0\u1edbc, tr\u00ean c\u00e1c l\u00edp \u1edf n\u01a1i b\u00e3i c\u00e1t b\u00e1n ng\u1eadp, khu v\u1ef1c canh t\u00e1c n\u00f4ng nghi\u1ec7p; ho\u1eb7c tr\u1ed3ng ph\u00e2n t\u00e1n ven \u0111\u01b0\u1eddng, quanh v\u01b0\u1eddn, quanh nh\u00e0, c\u00e1c khu c\u00f4ng s\u1edf, tr\u01b0\u1eddng h\u1ecdc.<\/p>\n

M\u1eadt \u0111\u1ed9 tr\u1ed3ng 2000 c\u00e2y\/ha, c\u1ef1 ly 2×2,5m ho\u1eb7c 1600 c\u00e2y\/ha, c\u1ef1 ly 2,5×2,5m.<\/p>\n

N\u01a1i c\u00f3 \u0111i\u1ec1u ki\u1ec7n b\u00f3n l\u00f3t 1kg ph\u00e2n chu\u1ed3ng hoai v\u00e0 0,05kg NPK ngay l\u00fac tr\u1ed3ng c\u00e2y. L\u1ea5p \u0111\u1ea5t m\u1eb7t xu\u1ed1ng tr\u01b0\u1edbc 1\/3 h\u1ed1, sau \u0111\u00f3 b\u00f3n ph\u00e2n chu\u1ed3ng v\u00e0 ph\u00e2n NPK, r\u1ed3i cho \u0111\u1ea5t t\u1edbi 2\/3 h\u1ed1, tr\u1ed9n \u0111\u1ec1u \u0111\u1ea5t v\u1edbi ph\u00e2n trong h\u1ed1. \u0110\u1eb7t b\u1ea7u c\u00e2y ngay ng\u1eafn gi\u1eefa h\u1ed1, l\u1ea5p \u0111\u1ea5t \u0111\u1ea7y h\u1ed1, vun th\u00e0nh h\u00ecnh mai r\u00f9a cao h\u01a1n mi\u1ec7ng h\u1ed1 5-10cm v\u00e0 gi\u1eabm ch\u1eb7t xung quanh b\u1ea7u c\u00e2y.<\/p>\n

Sau khi tr\u1ed3ng 2-3 tu\u1ea7n, ti\u1ebfn h\u00e0nh ki\u1ec3m tra c\u00e2y ch\u1ebft v\u00e0 tr\u1ed3ng d\u1eb7m.<\/p>\n

Ch\u0103m s\u00f3c 3 n\u0103m \u0111\u1ea7u, m\u1ed7i n\u0103m 1-2 l\u1ea7n v\u00e0o cu\u1ed1i m\u00f9a kh\u00f4 v\u00e0 cu\u1ed1i m\u00f9a m\u01b0a. N\u1ed9i dung ch\u0103m s\u00f3c g\u1ed3m ph\u00e1t c\u00e2y c\u1ecf c\u1ea1nh tranh v\u1edbi c\u00e2y tr\u1ed3ng, x\u1edbi, vun g\u1ed1c r\u1ed9ng 0,6m. N\u1ebfu c\u00f3 \u0111i\u1ec1u ki\u1ec7n k\u1ebft h\u1ee3p b\u00f3n th\u00fac 75-100g NPK(5:10:3) cho m\u1ed7i g\u1ed1c.<\/p>\n

B\u1ea1ch \u0111\u00e0n \u1edf tu\u1ed5i non d\u1ec5 b\u1ecb m\u1ed1i \u0103n h\u1ea1i, r\u1ec7p h\u1ea1i ng\u1ecdn, n\u1ea5m h\u1ea1i l\u00e1, c\u1ea7n ki\u1ec3m tra, ph\u00e1t hi\u1ec7n s\u1edbm, c\u00f3 bi\u1ec7n ph\u00e1p x\u1eed l\u00fd k\u1ecbp th\u1eddi. C\u1ea5m ch\u0103n th\u1ea3 tr\u00e2u b\u00f2 v\u00e0o r\u1eebng trong 3 n\u0103m \u0111\u1ea7u.<\/p>\n

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

G\u1ed7 m\u00e0u \u0111\u1ecf nh\u1ea1t, m\u1ecbn, t\u1ef7 tr\u1ecdng v\u00e0 \u0111\u1ed9 c\u1ee9ng trung b\u00ecnh, d\u1ec5 b\u1ecb cong v\u00eanh, d\u00f9ng trong c\u00f4ng tr\u00ecnh d\u01b0\u1edbi n\u01b0\u1edbc, c\u1ea7u, t\u00e0 v\u1eb9t, c\u1ed9t \u0111i\u1ec7n, \u0111\u00f3ng \u0111\u1ed3 m\u1ed9c. \u0110\u1eb7c bi\u1ec7t l\u00e0 m\u1ed9t trong nh\u1eefng lo\u00e0i c\u00e2y tr\u1ed3ng \u0111\u1ec3 cung c\u1ea5p g\u1ed7 nguy\u00ean li\u1ec7u gi\u1ea5y v\u00e0 tr\u1ee5 m\u1ecf. C\u0169ng l\u00e0 lo\u00e0i c\u00e2y tr\u1ed3ng ph\u1ed5 bi\u1ebfn \u1edf c\u00e1c v\u01b0\u1eddn r\u1eebng, tr\u1ed3ng ph\u1ee7 xanh \u0111\u1ed3i n\u00fai tr\u1ecdc. L\u00e1 c\u00f3 th\u1ec3 ch\u01b0ng c\u1ea5t tinh d\u1ea7u; hoa nhi\u1ec1u, th\u01a1m d\u00f9ng \u0111\u1ec3 nu\u00f4i ong.<\/p>\n

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

BA\u0323CH \u0110A\u0300N TR\u0102\u0301NG CAMAN T\u00ean kh\u00e1c: B\u1ea1ch \u0111\u00e0n caman T\u00ean khoa h\u1ecdc: Eucalyptus camaldulensis Dehn. H\u1ecd th\u1ef1c v\u1eadt: Sim (Myrtaceae) 1. \u0110\u0103\u0323c \u0111i\u00ea\u0309m hi\u0300nh tha\u0301i C\u00e2y g\u1ed7 l\u1edbn, cao 30-40m, \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c 40-50cm, th\u00e2n th\u1eb3ng tr\u00f2n \u0111\u1ec1u. V\u1ecf m\u00e0u x\u00e1m tr\u1eafng ho\u1eb7c x\u00e1m h\u01a1i xanh, nh\u1eb5n, bong t\u1eebng m\u1ea3ng m\u1ecfng. Ph\u00eda g\u1ea7n g\u1ed1c […]<\/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\/12743"}],"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=12743"}],"version-history":[{"count":5,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/12743\/revisions"}],"predecessor-version":[{"id":12749,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/12743\/revisions\/12749"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=12743"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=12743"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=12743"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}