{"id":475,"date":"2017-02-28T14:31:05","date_gmt":"2017-02-28T07:31:05","guid":{"rendered":"http:\/\/demo.prc.maiatech.com.vn\/?p=475"},"modified":"2017-02-28T14:31:05","modified_gmt":"2017-02-28T07:31:05","slug":"ket-qua-nghien-cuu-quy-trinh-ky-thuat-san-xuat-hat-giong-cai-meo-hoa-binh","status":"publish","type":"post","link":"https:\/\/prc.org.vn\/?p=475","title":{"rendered":"K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u quy tr\u00ecnh k\u1ef9 thu\u1eadt s\u1ea3n xu\u1ea5t h\u1ea1t gi\u1ed1ng c\u1ea3i m\u00e8o Ho\u00e0 B\u00ecnh"},"content":{"rendered":"<table cellspacing=\"3\" cellpadding=\"3\">\n<tbody>\n<tr>\n<td class=\"news_detail_detail\" colspan=\"2\" align=\"left\">1. Ngu\u00f4\u0300n g\u00f4\u0301c gi\u00f4\u0301ng<br \/>\nS\u1eed d\u1ee5ng gi\u1ed1ng \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u1ee5c tr\u00e1ng thu\u1ea7n ho\u1eb7c \u0111\u01b0\u1ee3c ch\u1ecdn l\u1ecdc h\u1ed7n d\u00f2ng theo 3 v\u1ee5, c\u00f3 n\u0103ng su\u1ea5t cao, ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t, th\u00edch h\u1ee3p v\u1edbi s\u1ea3n xu\u1ea5t v\u00e0 ti\u00eau th\u1ee5. Do C\u1ea3i Me\u0300o l\u00e0 c\u00e2y th\u1ee5 ph\u1ea5n ch\u00e9o n\u00ean c\u00f3 nhi\u1ec1u d\u1ea1ng h\u00ecnh c\u1ee7a th\u00e2n l\u00e1, qua tuy\u1ec3n l\u1ef1a c\u1ee7a n\u00f4ng d\u00e2n m\u00e0 gi\u1ed1ng tr\u1ed3ng c\u0169ng phong ph\u00fa, \u0111a d\u1ea1ng v\u1ec1 h\u00ecnh th\u00e1i th\u00e2n l\u00e1 \u1edf m\u1ed7i \u0111\u1ecba ph\u01b0\u01a1ng, v\u00ec th\u1ebf c\u0103n c\u1ee9 v\u00e0o b\u1ea3ng m\u00f4 t\u1ea3 t\u00ednh tr\u1ea1ng chu\u1ea9n c\u1ee7a c\u1ea3i Me\u0300o Ho\u0300a Bi\u0300nh m\u00e0 ch\u1ecdn l\u1ecdc \u0111\u00fang gi\u1ed1ng \u0111\u1ec3 nh\u00e2n l\u1ea5y h\u1ea1t.<br \/>\n2. Chu\u00e2\u0309n bi\u0323 \u0111\u00e2\u0301t v\u00e0 c\u00e1ch ly<br \/>\nRau c\u1ea3i Me\u0300o Ho\u0300a Bi\u0300nh (Brassica juncea (L.) H\u1ecd th\u1eadp t\u1ef1: Brassicaceae tr\u1ed3ng nh\u00e2n gi\u1ed1ng \u0111\u01b0\u1ee3c tr\u00ean c\u00e1c lo\u1ea1i \u0111\u1ea5t \u0111\u00f4\u0300i, thung lu\u0303ng co\u0301 \u0111\u00f4\u0323 cao so v\u01a1\u0301i m\u01b0\u0323c n\u01b0\u01a1\u0301c bi\u00ea\u0309n tr\u00ean 400 m, t\u01b0\u1edbi ti\u00eau thu\u1eadn l\u1ee3i<br \/>\nKhu ru\u1ed9ng c\u00f3 \u0111\u1ee7 di\u1ec7n t\u00edch l\u1edbn: 1.000 c\u00e2y\/gi\u1ed1ng nh\u00e2n.<br \/>\n\u0110\u1ea5t k\u1ef9 t\u01a1i x\u1ed1p, nh\u1eb7t s\u1ea1ch c\u1ecf d\u1ea1i t\u00e0n d\u01b0 c\u00e2y tr\u1ed3ng.<br \/>\nL\u00ean lu\u1ed1ng r\u1ed9ng 1,0-1,2m. L\u00ean lu\u1ed1ng cao 20-30cm (m\u00f9a m\u01b0a), m\u00f9a kh\u00f4 l\u00ean lu\u1ed1ng th\u1ea5p \u0111\u1ec3 gi\u1eef \u1ea9m cho c\u00e2y.<br \/>\nN\u1ebfu nh\u00e2n 2 gi\u1ed1ng ho\u1eb7c nhi\u1ec1u gi\u00f4\u0301ng c\u1ea3i kh\u00e1c c\u00f9ng m\u00f4\u0323t khu v\u1ef1c th\u00ec ph\u1ea3i ch\u1ecdn ru\u1ed9ng nh\u00e2n gi\u1ed1ng c\u00f3 \u0111i\u1ec1u ki\u1ec7n c\u00e1ch ly v\u00ea\u0300 kh\u00f4ng gian va\u0300 th\u01a1\u0300i gian nh\u01b0 tr\u1ed3ng trong c\u00e1c khu c\u00f3 c\u00e2y ch\u1eafn gi\u00f3, kho\u1ea3ng c\u00e1ch c\u00e1ch ly c\u00e1c ru\u1ed9ng nh\u00e2n kh\u00e1c gi\u1ed1ng l\u00e0 500-1000 m (c\u00e1ch ly theo TCN-318-98) ho\u0103\u0323c pha\u0309i la\u0300m nha\u0300 l\u01b0\u01a1\u0301i \u0111\u00ea\u0309 ca\u0301ch ly. Ca\u0301ch ly v\u00ea\u0300 th\u01a1\u0300i gian thi\u0300 b\u00f4\u0301 tri\u0301 th\u01a1\u0300i vu\u0323 tr\u00f4\u0300ng \u0111\u00ea\u0309 ca\u0301c gi\u00f4\u0301ng ra hoa l\u00ea\u0323ch nhau.<br \/>\n3. Th\u01a1\u0300i vu\u0323<br \/>\n&#8211; V\u1ee5 \u0110\u00f4ng xu\u00e2n t\u1eeb 20 th\u00e1ng 9<br \/>\n4.\u00a0 Gieo tr\u00f4\u0300ng<br \/>\n+ Gieo c\u00e2y con trong lu\u1ed1ng\/ v\u01b0\u1eddn \u01b0\u01a1m: L\u01b0\u1ee3ng h\u1ea1t gi\u1ed1ng c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ee7 c\u00e2y con c\u1ea5y tr\u00ean 1.000 m2 kho\u1ea3ng 180-200 g, gieo tr\u00ean 70 m2 \u0111\u1ea5t chia th\u00e0nh c\u00e1c lu\u1ed1ng \u01b0\u01a1m n\u01a1i cao r\u00e1o c\u00f3 \u0111\u1ea7y \u0111\u1ee7 \u00e1nh n\u1eafng.<br \/>\nH\u1ea1t gi\u1ed1ng ng\u00e2m trong n\u01b0\u1edbc sau 3-4 gi\u1edd v\u1edbt ra \u0111\u1ec3 r\u00e1o n\u01b0\u1edbc \u1ee7 \u1ea5m m\u1ed9t \u0111\u00eam r\u1ed3i \u0111em gieo h\u1ea1t s\u1ebd n\u1ea9y m\u1ea7m nhanh v\u00e0 \u0111\u1ec1u h\u01a1n gieo h\u1ea1t kh\u00f4. H\u1ea1t c\u1ea3i M\u00e8o nh\u1ecf, mu\u1ed1n gieo cho \u0111\u1ec1u n\u00ean chia h\u1ea1t nhi\u1ec1u ph\u1ea7n v\u00e0 tr\u1ed9n v\u1edbi \u0111\u1ea5t b\u1ed9t \u0111\u1ec3 d\u1ec5 \u0111i\u1ec1u ch\u1ec9nh h\u1ea1t gieo. T\u01b0\u1edbi \u0111\u1eabm lu\u1ed1ng tr\u01b0\u1edbc khi gieo, sau khi gieo ph\u1ee7 h\u1ea1t b\u1eb1ng l\u1edbp tro\/ tr\u1ea5u m\u1ecfng v\u00e0 r\u1eafc thu\u1ed1c tr\u1eeb ki\u1ebfn, c\u00e1c s\u00e2u h\u1ea1i kh\u00e1c (s\u00e2u non, b\u1ecd nh\u1ea9y, d\u1ebf ki\u1ebfn, s\u00ean nh\u1edbt, \u1ed1c nh\u00ed). Tr\u00ean m\u1eb7t lu\u1ed1ng ph\u1ee7 l\u1edbp r\u01a1m m\u1ecfng v\u00e0 t\u01b0\u1edbi \u0111\u1ee7 \u1ea9m. Khi c\u00e2y m\u1ecdc \u0111\u01b0\u1ee3c 7 ng\u00e0y th\u00ec t\u1ec9a b\u1ecf nh\u1eefng c\u00e2y s\u00e2u b\u1ec7nh, sau \u0111\u00f3 t\u1ec9a c\u00e2y \u0111\u1ec3 kho\u1ea3ng c\u00e1ch 3-4 cm<br \/>\n+ Tr\u1ed3ng c\u00e2y con tr\u00ean ru\u1ed9ng s\u1ea3n xu\u1ea5t: C\u00e2y con c\u00f3 3-4 l\u00e1 th\u1eadt kho\u1ea3ng 18-20 ng\u00e0y tu\u1ed5i, t\u1ec9a b\u1ecf c\u00e1c c\u00e2y x\u1ea5u v\u00e0 kh\u00f4ng \u0111\u1eb7c tr\u01b0ng gi\u1ed1ng, sau \u0111\u00f3 tr\u01b0\u1edbc khi \u0111em ra tr\u1ed3ng, ki\u1ec3m tra v\u00e0 lo\u1ea1i b\u1ecf c\u00e1c c\u00e2y nghi ng\u1edd m\u1ed9t l\u1ea7n n\u1eefa. Tr\u1ed3ng l\u1ea5y h\u1ea1t v\u1edbi kho\u1ea3ng c\u00e1ch 30 x 30 cm, 1 h\u1ed1c 1 c\u00e2y \u0111\u1ec3 ru\u1ed9ng th\u00f4ng tho\u00e1ng h\u1ea1n ch\u1ebf s\u00e2u b\u1ec7nh. Lu\u1ed1ng r\u1ed9ng 1-1,2 m c\u1ea5y \u0111\u01b0\u1ee3c 3-4 h\u00e0ng c\u1ea3i, c\u1ea5y m\u1eadt \u0111\u1ed9 \u0111\u1eebng d\u00e0y qu\u00e1. Tr\u1ed3ng d\u00e0y c\u00e2y cao, th\u00e2n l\u00e1 nh\u1ecf, n\u0103ng su\u1ea5t l\u00e1 cao, nh\u01b0ng n\u0103ng su\u1ea5t h\u1ea1t gi\u1ea3m.<br \/>\n5. B\u00f3n ph\u00e2n ch\u0103m s\u00f3c<br \/>\nT\u1ed5ng l\u01b0\u1ee3ng ph\u00e2n b\u00f3n cho 01 ha ru\u1ed9ng nh\u00e2n gi\u1ed1ng kho\u1ea3ng 25.000 kg ph\u00e2n chu\u1ed3ng (ph\u00e2n tr\u00e2u b\u00f2, heo, g\u00e0 \u0111\u00e3 \u1ee7 hoai), 75 kg N, 60 kg P2O5, 35 kg K2O,<br \/>\n+ B\u00f3n l\u00f3t:<br \/>\nV\u01b0\u1eddn \u01b0\u01a1m: Bo\u0301n l\u00f3t toa\u0300n b\u00f4\u0323 25-30 t\u00e2\u0301n ph\u00e2n chu\u1ed3ng hoai m\u1ee5c + 150 kg ph\u00e2n l\u00e2n\/01 ha<br \/>\nRu\u1ed9ng tr\u1ed3ng: To\u00e0n b\u1ed9 ph\u00e2n chu\u1ed3ng + L\u00e2n + 50% kg K2O. R\u00e3i tr\u00ean m\u1eb7t lu\u1ed1ng v\u00e0 x\u1edbi tr\u1ed9n \u0111\u1ec1u.<br \/>\n+ B\u00f3n th\u00fac:<br \/>\n&#8211; V\u01b0\u1eddn \u01b0\u01a1m: Kh\u00f4ng c\u1ea7n thi\u1ebft cung c\u1ea5p ph\u00e2n, n\u1ebfu c\u00e2y con ph\u00e1t tri\u1ec3n h\u01a1i k\u00e9m c\u00f3 th\u1ec3 t\u01b0\u1edbi th\u00fac nh\u1eb9 th\u00eam 1 l\u1ea7n kh\u1ecfang 10-15 ng\u00e0y sau khi gieo b\u1eb1ng n\u01b0\u1edbc ph\u00e2n h\u1ed7n h\u1ee3p NPK 16-16-8 pha lo\u00e3ng (20-30g\/10 l\u00edt n\u01b0\u1edbc). Khi c\u00e2y c\u00f3 2-3 l\u00e1 th\u1eadt t\u1ec9a b\u1ecf c\u00e2y x\u1ea5u, c\u00e2y b\u1ecb b\u1ec7nh. C\u00e2y con 18-20 ng\u00e0y tu\u1ed5i c\u00f3 th\u1ec3 nh\u1ed5 tr\u1ed3ng, tr\u1ed3ng t\u1eebng \u0111\u1ee3t ri\u00eang c\u00e2y t\u1ed1t v\u00e0 x\u1ea5u \u0111\u1ec3 ti\u1ec7n ch\u0103m s\u00f3c.<br \/>\n&#8211; Ru\u1ed9ng tr\u1ed3ng: B\u00f3n ph\u00e2n d\u1ef1a theo s\u1ef1 sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y k\u1ebft h\u1ee3p d\u1ecdn s\u1ea1ch c\u1ecf. Do c\u1ea3i Me\u0300o Ho\u0300a Bi\u0300nh ng\u1eafn ng\u00e0y n\u00ean chia ph\u00e2n ra 3 l\u1ea7n t\u01b0\u1edbi s\u1ebd c\u00f3 hi\u1ec7u qu\u1ea3 h\u01a1n.<br \/>\nKhi c\u00e2y b\u1eaft \u0111\u1ea7u c\u00f3 ng\u1ed3ng th\u00ec ti\u1ebfn h\u00e0nh l\u00e0m gi\u00e0n cho c\u00e2y t\u1ef1a, gi\u1ea3m t\u1ef7 l\u1ec7 r\u1ee5ng hoa, r\u1ee5ng qu\u1ea3 v\u00e0 t\u1ef7 l\u1ec7 h\u1ea1t l\u00e9p. Khi s\u1ed1 l\u01b0\u1ee3ng qu\u1ea3 \u0111\u00e3 \u0111\u1eadu \u0111\u01b0\u1ee3c 70-80% th\u00ec b\u1ea5m ng\u1ecdn v\u00e0 c\u1eaft c\u00e0nh hoa cu\u1ed1i, nha\u0301nh ph\u1ee5 \u0111\u1ec3 t\u1eadp trung dinh d\u01b0\u1ee1ng nu\u00f4i qu\u1ea3, nu\u00f4i h\u1ea1t \u1edf c\u00e1c c\u00e0nh qu\u1ea3 ch\u00ednh.<\/p>\n<p><img loading=\"lazy\" src=\"https:\/\/prc.maiatech.com.vn\/UserFiles\/Image\/Bon%20phan%20cai%20meo%20hoa%20binh.jpg\" alt=\"\" width=\"497\" height=\"150\" \/><\/p>\n<p>Khi c\u00e2y b\u1eaft \u0111\u1ea7u c\u00f3 ng\u1ed3ng th\u00ec ti\u1ebfn h\u00e0nh l\u00e0m gi\u00e0n cho c\u00e2y t\u1ef1a, gi\u1ea3m t\u1ef7 l\u1ec7 r\u1ee5ng hoa, r\u1ee5ng qu\u1ea3 v\u00e0 t\u1ef7 l\u1ec7 h\u1ea1t l\u00e9p. Khi s\u1ed1 l\u01b0\u1ee3ng qu\u1ea3 \u0111\u00e3 \u0111\u1eadu \u0111\u01b0\u1ee3c 70-80% th\u00ec b\u1ea5m ng\u1ecdn v\u00e0 c\u1eaft c\u00e0nh hoa cu\u1ed1i, nh\u00e1nh ph\u1ee5 \u0111\u1ec3 t\u1eadp trung dinh d\u01b0\u1ee1ng nu\u00f4i qu\u1ea3, nu\u00f4i h\u1ea1t \u1edf c\u00e1c c\u00e0nh qu\u1ea3 ch\u00ednh.<br \/>\n6. Thu ho\u1ea1ch qu\u1ea3 v\u00e0 h\u1ea1t<br \/>\nKhi c\u1ea3i chuy\u1ec3n t\u1eeb m\u00e0u xanh \u0111\u1eadm sang m\u00e0u m\u00e0u xanh v\u00e0ng th\u00ec c\u00f3 th\u1ec3 thu ho\u1ea1ch, kh\u00f4ng \u0111\u1ec3 qu\u1ea3 chi\u0301n h\u1eb3n tr\u00ean c\u00e2y. Khi thu ho\u1ea1ch d\u00f9ng dao c\u1eaft c\u1ea3 ng\u1ed3ng hoa, bu\u1ed9c th\u00e0nh t\u1eebng t\u00fam nh\u1ecf cho v\u00e0o t\u00fai l\u01b0\u1edbi m\u1eaft nh\u1ecf, hong v\u00e0i ba h\u00f4m r\u1ed3i m\u1edbi \u0111em ph\u01a1i kh\u00f4 cho \u0111\u1ebfn khi qu\u1ea3 gi\u00e1c kh\u00f4 th\u00ec v\u00f2 l\u1ea5y h\u1ea1t, sau \u0111\u00f3 nh\u1eb7t s\u1ea1ch v\u00e0 \u0111\u01b0a v\u00e0o b\u1ea3o qu\u1ea3n.<br \/>\n7. Qu\u1ea3n l\u00fd d\u1ecbch h\u1ea1i<br \/>\nRau c\u1ea3i Me\u0300o c\u00f3 nhi\u1ec1u s\u00e2u h\u1ea1i c\u1ea7n l\u01b0u \u00fd ph\u00f2ng tr\u1eeb. Tr\u00ean ru\u1ed9ng rau th\u01b0\u1eddng g\u1eb7p nh\u1eefng d\u1ecbch h\u1ea1i ch\u1ee7 y\u1ebfu sau: B\u1ecd nh\u1ea9y (Phyllotreta striolata), s\u00e2u \u0103n t\u1ea1p (Spodoptera litura), s\u00e2u t\u01a1 (Plutella xylostella), s\u00e2u \u0111\u1ee5c ng\u1ecdn (Hellula sp.), b\u1ec7nh ch\u1ebft c\u00e2y con (do Pythium sp., Rhizoctonia sp., Sclerostium sp.), b\u1ec7nh th\u1ed1i b\u1eb9 (Sclerostium rolfsii, Rhizoctonia sp.) B\u1ec7nh th\u1ed1i nh\u0169n vi khu\u1ea9n (Erwinia carotovora). Vi\u1ec7c th\u1ef1c hi\u1ec7n nghi\u00eam ch\u1ec9nh k\u1ef9 thu\u1eadt canh t\u00e1c n\u00f3i tr\u00ean \u0111\u00e3 l\u00e0 m\u1ed9t ph\u1ea7n trong qu\u1ea3n l\u00fd d\u1ecbch h\u1ea1i t\u1ed5ng h\u1ee3p, ph\u1ea7n n\u00e0y ch\u1ec9 nh\u1ea5n m\u1ea1nh c\u00e1c bi\u1ec7n ph\u00e1p c\u1ea7n thi\u1ebft cho qu\u1ea3n l\u00fd c\u00e1c d\u1ecbch h\u1ea1i c\u1ee5 th\u1ec3.<br \/>\n+ Bi\u1ec7n ph\u00e1p canh t\u00e1c:<br \/>\nLu\u00e2n canh: \u0110\u1ec3 h\u1ea1n ch\u1ebf c\u00e1c s\u00e2u b\u1ec7nh h\u1ea1i c\u00f3 th\u1ec3 chu chuy\u1ec3n v\u00e0 g\u00e2y h\u1ea1i n\u1eb7ng, kh\u00f4ng n\u00ean tr\u1ed3ng li\u00ean t\u1ee5c nhi\u1ec1u v\u1ee5 c\u00f9ng h\u1ecd c\u1ea3i tr\u00ean c\u00f9ng m\u1ed9t ch\u00e2n \u0111\u1ea5t. N\u00ean lu\u00e2n canh b\u1eaft bu\u1ed9c v\u1edbi c\u00e1c c\u00e2y kh\u00e1c h\u1ecd nh\u01b0: x\u00e0 l\u00e1ch, rau d\u1ec1n, m\u1ed3ng t\u01a1i ho\u1eb7c rau gia v\u1ecb &#8230; t\u1ed1t nh\u1ea5t n\u00ean lu\u00e2n canh v\u1edbi c\u00e1c c\u00e2y h\u1ecd ho\u00e0 th\u1ea3o nh\u01b0: b\u1eafp, l\u00faa n\u01b0\u1edbc ch\u1eb3ng h\u1ea1n.<br \/>\nTh\u01b0\u1eddng xuy\u00ean t\u01b0\u1edbi \u0111\u1ee7 \u1ea9m \u0111\u1ec3 h\u1ea1n ch\u1ebf s\u1ef1 ph\u00e1t tri\u1ec3n s\u00e2u non b\u1ecd nh\u1ea9y s\u1ed1ng \u1edf ph\u1ea7n g\u1ed1c c\u00e2y d\u01b0\u1edbi \u0111\u1ea5t. Nh\u01b0ng n\u1ebfu th\u1ea5y b\u1ec7nh ph\u00e1t tri\u1ec3n n\u00ean h\u1ea1n ch\u1ebf t\u01b0\u1edbi n\u01b0\u1edbc.<br \/>\nM\u1eadt \u0111\u1ed9 gieo tr\u1ed3ng v\u1eeba ph\u1ea3i: Kh\u00f4ng n\u00ean tr\u1ed3ng qu\u00e1 d\u1ea7y nh\u1ea5t l\u00e0 trong m\u00f9a m\u01b0a d\u1ec5 t\u1ea1o thu\u1eadn l\u1ee3i cho c\u00e1c b\u1ec7nh ph\u00e1t tri\u1ec3n. Trong m\u00f9a m\u01b0a c\u00f3 th\u1ec3 che l\u01b0\u1edbi th\u1ea5p \u0111\u1ec3 tr\u00e1nh d\u1eadp n\u00e1t, t\u1ed5n th\u01b0\u01a1ng \u0111\u1ebfn b\u1ed9 l\u00e1<br \/>\nV\u1ec7 sinh \u0111\u1ed3ng ru\u1ed9ng: L\u00e0m s\u1ea1ch c\u1ecf trong ru\u1ed9ng v\u00e0 c\u1ecf b\u1edd \u0111\u1ec3 h\u1ea1n ch\u1ebf s\u1ef1 c\u01b0 tr\u00fa c\u1ee7a c\u00e1c s\u00e2u b\u1ec7nh, sau thu ho\u1ea1ch n\u00ean gom \u0111\u1ed1t c\u00e1c t\u00e0n d\u01b0.<br \/>\n+ Bi\u1ec7n ph\u00e1p c\u01a1 l\u00fd<br \/>\nTh\u0103m \u0111\u1ed3ng th\u01b0\u1eddng xuy\u00ean n\u1ebfu th\u1ea5y xu\u1ea5t hi\u1ec7n c\u00e1c s\u00e2u b\u1ec7nh h\u1ea1i nh\u01b0 tr\u1ee9ng s\u00e2u \u0103n t\u1ea1p, s\u00e2u t\u01a1, b\u1ec7nh th\u1ed1i nh\u0169n &#8230; c\u00f3 th\u1ec3 d\u00f9ng tay b\u1eaft gi\u1ebft nh\u1ed5 b\u1ecf c\u00e2y b\u1ec7nh \u0111\u1ec3 h\u1ea1n ch\u1ebf s\u1ef1 l\u00e2y lan. C\u00e1c c\u00e2y, l\u00e1 b\u1ec7nh khi nh\u1ed5 b\u1ecf kh\u00f4ng v\u1ee9t \u1edf ru\u1ed9ng v\u00e0 b\u1edd m\u00e0 c\u1ea7n gom \u0111\u1ed1t ho\u1eb7c \u0111\u00e0o h\u1ed1 ch\u00f4n c\u00f3 r\u00e3i v\u00f4i b\u1ed9t kh\u1eed tr\u00f9ng, hay \u0111em \u1ee7 ph\u00e2n \u0111\u00fang k\u1ef9 thu\u1eadt.<br \/>\n+ Bi\u1ec7n ph\u00e1p sinh h\u1ecdc<br \/>\n\u0110\u1ec3 b\u1ea3o t\u1ed3n c\u00e1c lo\u1ea1i thi\u00ean \u0111\u1ecbch c\u1ee7a s\u00e2u h\u1ea1i (nh\u1ec7n, ong k\u00fd sinh, b\u1ecd r\u00f9a \u0103n s\u00e2u&#8230;) c\u1ea7n h\u1ea1n ch\u1ebf c\u00e1c lo\u1ea1i thu\u1ed1c ph\u1ed5 r\u1ed9ng. Ph\u00f2ng c\u00e1c lo\u1ea1i s\u00e2u non b\u1ecd c\u00e1nh ph\u1ea5n n\u1ebfu xu\u1ea5t hi\u1ec7n nhi\u1ec1u th\u00ec \u01b0u ti\u00ean s\u1eed d\u1ee5ng thu\u1ed1c vi sinh g\u1ed1c Bacillus thuringiensis c\u00e1c lo\u1ea1i, ri\u00eang v\u1edbi b\u1ecd nh\u1ea9y c\u00f3 th\u1ec3 d\u00f9ng c\u00e1c lo\u1ea1i thu\u1ed1c th\u1ea3o m\u1ed9c Nicotine (n\u01b0\u1edbc ng\u00e2m th\u00e2n l\u00e1 thu\u1ed1c l\u00e1), Rotenone (thu\u1ed1c c\u00e1) phun tr\u1eeb.<br \/>\n+ Bi\u1ec7n ph\u00e1p h\u00f3a h\u1ecdc:<br \/>\nF Tr\u1eeb s\u00e2u h\u1ea1i:<br \/>\nTrong v\u01b0\u1eddn \u01b0\u01a1m c\u1ea7n tr\u1eeb ki\u1ebfn tha h\u1ea1t gi\u1ed1ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng thu\u1ed1c Basudin 10H (15-20g\/10m2).<br \/>\n\u0110\u1ec3 tr\u1eeb b\u1ecd nh\u1ea9y c\u00f3 th\u1ec3 x\u1eed l\u00fd h\u1ed9t gi\u1ed1ng tr\u01b0\u1edbc gieo b\u1eb1ng thu\u1ed1c. Tr\u01b0\u1eddng h\u1ee3p b\u1ecd nh\u1ea9y xu\u1ea5t hi\u1ec7n nhi\u1ec1u tr\u00ean ru\u1ed9ng c\u00f3 th\u1ec3 d\u00f9ng thu\u1ed1c g\u1ed1c l\u00e2n h\u1eefu c\u01a1 k\u1ebft h\u1ee3p v\u1edbi g\u1ed1c c\u00fac t\u1ed5ng h\u1ee3p theo khuy\u1ebft c\u00e1o.<br \/>\nF Tr\u1eeb b\u1ec7nh h\u1ea1i:<br \/>\n\u0110\u1ec3 ph\u00f2ng tr\u1ecb c\u00e1c b\u1ec7nh tr\u01b0\u1edbc khi gieo n\u00ean x\u1eed l\u00fd b\u1eb1ng m\u1ed9t trong c\u00e1c lo\u1ea1i thu\u1ed1c sau \u0111\u00e2y: Rovral 50 WP, Viben-C 50 WP, l\u01b0\u1ee3ng d\u00f9ng 5kg\/1kg h\u1ed9t.<br \/>\nV\u1edbi b\u1ec7nh ch\u1ebft c\u00e2y con: Khi ph\u00e1t hi\u1ec7n phun m\u1ed9t trong c\u00e1c lo\u1ea1i thu\u1ed1c: Moceren 25 WP (15g\/8 l\u00edt), Rovral 50WP (20g\/8 l\u00edt), Ridomil MZ 72 WP (15g\/8 l\u00edt).<br \/>\nB\u1ec7nh th\u1ed1i b\u1eb9: d\u00f9ng Moceren 25 WP (25g\/8 l\u00edt), Rovral 50 WP (20g\/8 l\u00edt), Ridomil MZ 72 WP (15g\/8 l\u00edt).<\/td>\n<\/tr>\n<tr>\n<td class=\"news_detail_source\" colspan=\"2\" align=\"right\">V\u0169 V\u0103n T\u00f9ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>1. Ngu\u00f4\u0300n g\u00f4\u0301c gi\u00f4\u0301ng S\u1eed d\u1ee5ng gi\u1ed1ng \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u1ee5c tr\u00e1ng thu\u1ea7n ho\u1eb7c \u0111\u01b0\u1ee3c ch\u1ecdn l\u1ecdc h\u1ed7n d\u00f2ng theo 3<\/p>\n","protected":false},"author":4,"featured_media":476,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[35],"tags":[],"_links":{"self":[{"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/475"}],"collection":[{"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=475"}],"version-history":[{"count":1,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/475\/revisions"}],"predecessor-version":[{"id":477,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/475\/revisions\/477"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/media\/476"}],"wp:attachment":[{"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=475"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=475"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=475"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}