{"id":24028,"date":"2026-01-14T14:31:17","date_gmt":"2026-01-14T07:31:17","guid":{"rendered":"https:\/\/vafs.gov.vn\/vn\/?p=24028"},"modified":"2026-01-14T14:32:09","modified_gmt":"2026-01-14T07:32:09","slug":"tien-bo-ky-thuat-ky-thuat-nhan-giong-bang-hat-cay-gu-lau-sindora-tonkinensis-a-chev-ex-k-s-s-larsen","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/tien-bo-ky-thuat-ky-thuat-nhan-giong-bang-hat-cay-gu-lau-sindora-tonkinensis-a-chev-ex-k-s-s-larsen\/","title":{"rendered":"Ti\u1ebfn b\u1ed9 k\u1ef9 thu\u1eadt \u201cK\u1ef9 thu\u1eadt nh\u00e2n gi\u1ed1ng b\u1eb1ng h\u1ea1t c\u00e2y G\u1ee5 lau (<em>Sindora tonkinensis<\/em> A. Chev. ex K. &#038; S. S. Larsen)\u201d"},"content":{"rendered":"<p><a href=\"https:\/\/vafs.gov.vn\/vn\/tien-bo-ky-thuat-ky-thuat-nhan-giong-bang-hat-cay-gu-lau-sindora-tonkinensis-a-chev-ex-k-s-s-larsen\/26-01-14-tbkt-gulau1\/\" rel=\"attachment wp-att-24030\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-24030\" src=\"http:\/\/vafs.gov.vn\/vn\/wp-content\/uploads\/sites\/2\/2026\/01\/26-01-14-TBKT-GuLau1-500x205.jpg\" alt=\"\" width=\"500\" height=\"205\" srcset=\"https:\/\/vafs.gov.vn\/vn\/wp-content\/uploads\/sites\/2\/2026\/01\/26-01-14-TBKT-GuLau1-500x205.jpg 500w, https:\/\/vafs.gov.vn\/vn\/wp-content\/uploads\/sites\/2\/2026\/01\/26-01-14-TBKT-GuLau1.jpg 709w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/a><\/p>\n<p><strong>1.\u00a0\u00a0 T\u00ean ti\u1ebfn b\u1ed9 k\u1ef9 thu\u1eadt<\/strong><\/p>\n<p>K\u1ef9 thu\u1eadt nh\u00e2n gi\u1ed1ng b\u1eb1ng h\u1ea1t c\u00e2y G\u1ee5 lau (<em>Sindora<\/em><em> tonkinensis <\/em>A. Chev. ex K.&amp; S. S. Larsen).<\/p>\n<p><strong>2.\u00a0\u00a0 Ta\u0301c gia\u0309<\/strong><\/p>\n<p>Nh\u00f3m t\u00e1c gi\u1ea3 c\u1ee7a ti\u1ebfn b\u1ed9 k\u1ef9 thu\u1eadt: TS. V\u0169 \u0110\u1ee9c B\u00ecnh, TS. Ph\u1ea1m Xu\u00e2n \u0110\u1ec9nh, ThS. Nguy\u1ec5n Th\u1ecb Thanh Nga, ThS. Nguy\u1ec5n H\u1ea3i Th\u00e0nh, TS. Nguy\u1ec5n Th\u1ecb Li\u1ec7u, TS. Nguy\u1ec5n Ti\u1ebfn Linh, TS. \u0110\u1ed7 H\u1eefu S\u01a1n, TS. L\u00ea Xu\u00e2n To\u00e0n, ThS. L\u00ea C\u00f4ng \u0110\u1ecbnh, TS. Ph\u1ea1m Ti\u1ebfn H\u00f9ng, ThS. Nguy\u1ec5n Th\u1ecb Kim Vui, ThS. H\u00e0 V\u0103n Thi\u1ec7n.<\/p>\n<p>T\u1ed5 ch\u1ee9c c\u00f3 ti\u1ebfn b\u1ed9 k\u1ef9 thu\u1eadt \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn: Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam.<\/p>\n<p>\u0110\u1ecba ch\u1ec9: S\u1ed1 46 \u0111\u01b0\u1eddng \u0110\u1ee9c Th\u1eafng, Ph\u01b0\u1eddng \u0110\u00f4ng Ng\u1ea1c &#8211; Th\u00e0nh ph\u1ed1 H\u00e0 N\u1ed9i \u0110i\u1ec7n tho\u1ea1i: 024.3838.9031\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Fax: 024.3838.9722<\/p>\n<p>E-mail: <a href=\"mailto:vkhln@vafs.gov.vn\">vkhln@vafs.gov.vn<\/a>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Website: <a href=\"http:\/\/vafs.gov.vn\/\">http:\/\/vafs.gov.vn<\/a><\/p>\n<p><strong>3.\u00a0\u00a0 Xu\u1ea5t x\u1ee9 c\u1ee7a ti\u1ebfn b\u1ed9 k\u1ef9 thu\u1eadt<\/strong><\/p>\n<p>Ti\u1ebfn b\u1ed9 k\u1ef9 thu\u1eadt l\u00e0 k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u c\u1ee7a nhi\u1ec7m v\u1ee5 qu\u1ef9 gen c\u1ea5p qu\u1ed1c gia: Nghi\u00ean c\u1ee9u khai th\u00e1c v\u00e0 ph\u00e1t tri\u1ec3n ngu\u1ed3n gen c\u00e2y G\u1ee5 lau (<em>Sindora<\/em><em> tonkinensis <\/em>A. Chev. ex K. &amp; S. S. Larsen) t\u1ea1i m\u1ed9t s\u1ed1 t\u1ec9nh duy\u00ean h\u1ea3i mi\u1ec1n Trung&#8221;, m\u00e3 s\u1ed1 NVQG- 2023\/\u0110T.07, do Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam ch\u1ee7 tr\u00ec, Trung t\u00e2m Khoa h\u1ecdc L\u00e2m nghi\u1ec7p B\u1eafc Trung B\u1ed9 th\u1ef1c hi\u1ec7n trong th\u1eddi gian t\u1eeb th\u00e1ng 3 n\u0103m 2023 \u0111\u1ebfn th\u00e1ng 12 n\u0103m 2025.<\/p>\n<p><strong>4.\u00a0\u00a0 T\u00f3m t\u1eaft n\u1ed9i dung c\u1ee7a ti\u1ebfn b\u1ed9 k\u1ef9 thu\u1eadt<\/strong><\/p>\n<p><em><strong>4.1.\u00a0\u00a0 N\u1ed9i dung c\u1ee7a ti\u1ebfn b\u1ed9 k\u1ef9 thu\u1eadt<\/strong><\/em><\/p>\n<p><em>4.1.1. Nh\u1eefng \u0111i\u1ec3m m\u1edbi trong k\u1ef9 thu\u1eadt nh\u00e2n gi\u1ed1ng b\u1eb1ng h\u1ea1t c\u00e2y G\u1ee5 lau<\/em><\/p>\n<p>a. X\u1eed l\u00fd h\u1ea1t gi\u1ed1ng: H\u1ea1t gi\u1ed1ng G\u1ee5 lau \u0111\u01b0\u1ee3c m\u00e0i m\u1ed9t ph\u1ea7n v\u1ecf h\u1ea1t v\u00e0 \u0111\u01b0\u1ee3c ng\u00e2m trong n\u01b0\u1edbc c\u00f3 nhi\u1ec7t \u0111\u1ed9 ban \u0111\u1ea7u l\u00e0 550C trong th\u1eddi gian 12 gi\u1edd, sau \u0111\u00f3 h\u1ea1t gi\u1ed1ng \u0111\u01b0\u1ee3c v\u1edbt ra \u0111\u1ec3 r\u00e1o n\u01b0\u1edbc tr\u01b0\u1edbc khi \u0111em<\/p>\n<p>b. Th\u00e0nh ph\u1ea7n ru\u1ed9t b\u1ea7u t\u00ednh theo th\u1ec3 t\u00edch g\u1ed3m: 89% \u0111\u1ea5t m\u1eb7t + 10% ph\u00e2n chu\u1ed3ng hoai + 1% NPK (5:10:3).<\/p>\n<p>c. C\u1ea5y c\u00e2y con v\u00e0o b\u1ea7u: S\u1eed d\u1ee5ng c\u00e1c c\u00e2y m\u1ea1 25 ng\u00e0y tu\u1ed5i k\u1ec3 t\u1eeb khi gieo h\u1ea1t (c\u00f3 t\u1eeb 2 l\u00e1 m\u1ea7m tr\u1edf l\u00ean; cao t\u1eeb 5 \u0111\u1ebfn 7 cm) \u0111\u1ec3 c\u1ea5y v\u00e0o b\u1ea7u.<\/p>\n<p>d. Li\u1ec1u l\u01b0\u1ee3ng b\u00f3n th\u00fac: B\u00f3n th\u00fac ph\u00e2n v\u00e0o c\u00e1c th\u1eddi \u0111i\u1ec3m c\u00e2y con \u0111\u01b0\u1ee3c 3 th\u00e1ng tu\u1ed5i, 6 th\u00e1ng tu\u1ed5i v\u00e0 9 th\u00e1ng tu\u1ed5i v\u1edbi n\u1ed3ng \u0111\u1ed9 b\u00f3n 1% ph\u00e2n NPK (5:10:3), l\u01b0\u1ee3ng t\u01b0\u1edbi 2,5 l\u00edt\/100 b\u1ea7u (h\u00f2a 25 g ph\u00e2n NPK v\u1edbi 2,5 l\u00edt n\u01b0\u1edbc s\u1ea1ch, t\u01b0\u1edbi cho 100 b\u1ea7u), sau khi t\u01b0\u1edbi ph\u00e2n c\u1ea7n t\u01b0\u1edbi n\u01b0\u1edbc s\u1ea1ch \u0111\u1ec3 r\u1eeda l\u00e1.<\/p>\n<p><a href=\"https:\/\/vafs.gov.vn\/vn\/tien-bo-ky-thuat-ky-thuat-nhan-giong-bang-hat-cay-gu-lau-sindora-tonkinensis-a-chev-ex-k-s-s-larsen\/26-01-14-tbkt-gulau2\/\" rel=\"attachment wp-att-24029\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-24029 size-medium\" src=\"http:\/\/vafs.gov.vn\/vn\/wp-content\/uploads\/sites\/2\/2026\/01\/26-01-14-TBKT-GuLau2-500x422.jpg\" alt=\"\" width=\"500\" height=\"422\" srcset=\"https:\/\/vafs.gov.vn\/vn\/wp-content\/uploads\/sites\/2\/2026\/01\/26-01-14-TBKT-GuLau2-500x422.jpg 500w, https:\/\/vafs.gov.vn\/vn\/wp-content\/uploads\/sites\/2\/2026\/01\/26-01-14-TBKT-GuLau2.jpg 529w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/a><\/p>\n<p><em>4.1.2.2. M\u00f4 t\u1ea3 chi ti\u1ebft c\u00e1c kh\u00e2u trong quy tr\u00ecnh<\/em><\/p>\n<p>a)\u00a0 Cho\u0323n ngu\u1ed3n gi\u1ed1ng \u0111\u1ec3 thu h\u00e1i qu\u1ea3:<\/p>\n<p>Ngu\u1ed3n gi\u1ed1ng c\u00f3 ngu\u1ed3n g\u1ed1c r\u00f5 r\u00e0ng, \u0111\u01b0\u1ee3c ch\u1ecdn l\u1ecdc theo TCVN 8755:2024 (Gi\u1ed1ng c\u00e2y l\u00e2m nghi\u1ec7p &#8211; C\u00e2y tr\u1ed9i) \u00e1p d\u1ee5ng cho lo\u00e0i c\u00e2y l\u1ea5y g\u1ed7.<\/p>\n<p>b)\u00a0 Thu h\u00e1i qu\u1ea3:<\/p>\n<p>Th\u1eddi gian qu\u1ea3 ch\u00edn: \u1ede v\u00f9ng duy\u00ean h\u1ea3i mi\u1ec1n Trung, qu\u1ea3 G\u1ee5 lau th\u01b0\u1eddng ch\u00edn r\u1ea3i r\u00e1c t\u1eeb th\u00e1ng 7 \u0111\u1ebfn th\u00e1ng 10 d\u01b0\u01a1ng l\u1ecbch h\u1eb1ng n\u0103m, thu h\u00e1i qu\u1ea3 v\u00e0o th\u1eddi \u0111i\u1ec3m ch\u00edn r\u1ed9 th\u00e1ng 8 \u0111\u1ebfn \u0111\u1ea7u th\u00e1ng 9 khi v\u1ecf qu\u1ea3 c\u00f3 m\u00e0u x\u00e1m n\u00e2u ho\u1eb7c c\u00e1nh d\u00e1n.<\/p>\n<p>Ph\u01b0\u01a1ng ph\u00e1p thu qu\u1ea3: H\u00e1i qu\u1ea3 b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng s\u00e0o c\u00f3 c\u00e2u li\u00eam \u0111\u1ec3 gi\u1eadt t\u1eebng ch\u00f9m qu\u1ea3 ho\u1eb7c c\u00f3 th\u1ec3 thu qu\u1ea3 b\u1eb1ng c\u00e1ch \u0111\u1ec3 qu\u1ea3 r\u1ee5ng xu\u1ed1ng m\u1eb7t \u0111\u1ea5t v\u00e0 ti\u1ebfn h\u00e0nh nh\u1eb7t qu\u1ea3. Kh\u00f4ng \u0111\u01b0\u1ee3c ch\u1eb7t c\u00e2y ho\u1eb7c c\u00e0nh \u0111\u1ec3 thu qu\u1ea3.<\/p>\n<p>1 kg qu\u1ea3 trung b\u00ecnh c\u00f3 t\u1eeb 94 \u0111\u1ebfn 117 qu\u1ea3, m\u1ed7i qu\u1ea3 c\u00f3 t\u1eeb 1 \u0111\u1ebfn 5 h\u1ea1t. K\u00edch th\u01b0\u1edbc qu\u1ea3 c\u00f3 chi\u1ec1u d\u00e0i t\u1eeb 3,9 &#8211; 10,9 cm; chi\u1ec1u r\u1ed9ng t\u1eeb 2,7 &#8211; 8,1 cm; chi\u1ec1u d\u00e0y t\u1eeb 1,0 &#8211; 2,1 cm.<\/p>\n<p>c)\u00a0 Ch\u1ebf bi\u1ebfn h\u1ea1t gi\u1ed1ng:<\/p>\n<p>Qu\u1ea3 thu h\u00e1i v\u1ec1 c\u1ea7n \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf t\u1ea1p v\u1eadt, nh\u1eefng qu\u1ea3 nh\u1ecf, qu\u1ea3 xanh, sau \u0111\u00f3 \u0111\u01b0\u1ee3c \u1ee7 th\u00e0nh t\u1eebng \u0111\u1ed1ng (kh\u00f4ng qu\u00e1 30 cm) trong 2 &#8211; 3 ng\u00e0y \u1edf n\u01a1i tho\u00e1ng gi\u00f3 cho ch\u00edn \u0111\u1ec1u, m\u1ed7i ng\u00e0y \u0111\u1ea3o l\u1ea1i m\u1ed9t l\u1ea7n.<\/p>\n<p>Khi qu\u1ea3 ch\u00edn, \u0111em ph\u01a1i n\u1eafng t\u1ef1 nhi\u00ean \u0111\u1ec3 t\u00e1ch h\u1ea1t, sau khi thu \u0111\u01b0\u1ee3c h\u1ea1t ti\u1ebfp t\u1ee5c lo\u1ea1i b\u1ecf h\u1ea1t nh\u1ecf, h\u1ea1t x\u1ea5u.<\/p>\n<p>1 kg h\u1ea1t thu\u1ea7n c\u00f3 kho\u1ea3ng 500 h\u1ea1t \u0111\u1ebfn 516 h\u1ea1t. K\u00edch th\u01b0\u1edbc h\u1ea1t dao \u0111\u1ed9ng, d\u00e0i t\u1eeb 2,2 cm \u0111\u1ebfn 3,5 cm; r\u1ed9ng t\u1eeb 1,6 cm \u0111\u1ebfn 2,3 cm; d\u00e0y t\u1eeb 0,7 cm- 1,9 cm.<\/p>\n<ul>\n<li>Ch\u1ea5t l\u01b0\u1ee3ng h\u1ea1t gi\u1ed1ng: \u0110\u1ed9 thu\u1ea7n t\u1ed1i thi\u1ec3u 95%; Kh\u1ed1i l\u01b0\u1ee3ng 1000 h\u1ea1t t\u1ed1i thi\u1ec3u 1960 g; T\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m t\u1ed1i thi\u1ec3u 80%. H\u1ea1t gi\u1ed1ng kh\u00f4ng b\u1ecb n\u1ea5m m\u1ed1c, c\u00f3 k\u00edch th\u01b0\u1edbc v\u00e0 m\u00e0u s\u1eafc \u0111\u1ed3ng \u0111\u1ec1u, m\u00e0u \u0111en b\u00f3ng.<\/li>\n<\/ul>\n<p>d)\u00a0 B\u1ea3o qu\u1ea3n h\u1ea1t:<\/p>\n<p>H\u1ea1t sau khi \u0111\u01b0\u1ee3c ch\u1ebf bi\u1ebfn n\u1ebfu ch\u01b0a gieo \u01b0\u01a1m ngay th\u00ec c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o qu\u1ea3n. H\u1ea1t \u0111\u01b0\u1ee3c b\u1ea3o qu\u1ea3n trong chum, v\u1ea1i, s\u00e0nh \u0111\u1ec3 n\u01a1i kh\u00f4 r\u00e1o; b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u00f3 th\u1ec3 duy tr\u00ec s\u1ee9c s\u1ed1ng c\u1ee7a h\u1ea1t t\u1edbi 2 n\u0103m.<\/p>\n<p>e)\u00a0 Cho\u0323n \u0111\u1ecba \u0111i\u1ec3m l\u1eadp v\u01b0\u1eddn \u01b0\u01a1m:<\/p>\n<p>Ch\u1ecdn l\u1eadp v\u01b0\u1eddn \u01b0\u01a1m \u0111\u1ea3m b\u1ea3o theo y\u00eau c\u1ea7u TCVN 13359:2021 &#8211; Gi\u1ed1ng c\u00e2y l\u00e2m nghi\u1ec7p &#8211; V\u01b0\u1eddn \u01b0\u01a1m c\u00e2y l\u00e2m nghi\u1ec7p, trong \u0111\u00f3 c\u1ea7n thu\u1eadn l\u1ee3i v\u1ec1 giao th\u00f4ng, \u0111\u1ed9 d\u1ed1c kh\u00f4ng qu\u00e1 5o, kh\u00f4ng b\u1ecb ng\u1eadp \u00fang, sau c\u01a1n m\u01b0a n\u01b0\u1edbc ti\u00eau tho\u00e1t ngay; xa c\u00e1c ngu\u1ed3n s\u00e2u b\u1ec7nh h\u1ea1i v\u00e0 c\u00e1c ngu\u1ed3n \u0111\u1ed9c h\u1ea1i kh\u00e1c; c\u00f3 ngu\u1ed3n n\u01b0\u1edbc ng\u1ecdt s\u1ea1ch \u0111\u1ec3 t\u01b0\u1edbi \u0111\u1ea7y \u0111\u1ee7, \u1ed5n \u0111\u1ecbnh.<\/p>\n<p>f. Th\u1eddi v\u1ee5 gieo h\u1ea1t: T\u1eeb th\u00e1ng 7 &#8211; 10 d\u01b0\u01a1ng l\u1ecbch h\u1eb1ng n\u0103m.<\/p>\n<p>g)\u00a0 X\u1eed l\u00fd h\u1ea1t tr\u01b0\u1edbc khi gieo:<\/p>\n<p>H\u1ea1t \u0111\u01b0\u1ee3c m\u00e0i m\u1ed9t ph\u1ea7n v\u1ecf h\u1ea1t b\u1eb1ng c\u00e1ch d\u00f9ng gi\u1ea5y nh\u00e1m m\u00e0i nh\u1eb9 v\u00e0o c\u1ea1nh b\u00ean ho\u1eb7c \u0111\u1ea7u \u0111\u1ed1i di\u1ec7n r\u1ed1n h\u1ea1t, m\u00e0i t\u1eeb t\u1eeb \u0111\u1ebfn khi l\u1edbp v\u1ecf \u0111en b\u00ean ngo\u00e0i l\u1ed9 ra ph\u1ea7n n\u1ed9i nh\u0169 m\u00e0u v\u00e0ng th\u00ec d\u1eebng l\u1ea1i. H\u1ea1t tr\u01b0\u1edbc khi gieo \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng c\u00e1ch ng\u00e2m h\u1ea1t trong n\u01b0\u1edbc c\u00f3 nhi\u1ec7t \u0111\u1ed9 ban \u0111\u1ea7u l\u00e0 550C trong th\u1eddi gian 12 gi\u1edd, v\u1edbt h\u1ea1t ra \u0111\u1ec3 r\u00e1o n\u01b0\u1edbc v\u00e0 lo\u1ea1i b\u1ecf cu\u1ed1ng r\u1ed1n. Sau \u0111\u00f3, ng\u00e2m trong dung d\u1ecbch thu\u1ed1c ch\u1ed1ng n\u1ea5m Mexyl Mz 72WP n\u1ed3ng \u0111\u1ed9 0,3% (3g\/1 l\u00edt n\u01b0\u1edbc) trong 15 ph\u00fat, v\u1edbt ra r\u1eeda s\u1ea1ch, \u0111\u1ec3 r\u00e1o r\u1ed3i \u0111em gieo. T\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m \u0111\u1ea1t kho\u1ea3ng 94,0% sau 22 ng\u00e0y. Ngo\u00e0i ra, c\u00f3 th\u1ec3 x\u1eed l\u00fd h\u1ea1t ch\u01b0a m\u00e0i trong n\u01b0\u1edbc c\u00f3 nhi\u1ec7t \u0111\u1ed9 ban \u0111\u1ea7u 1000C trong th\u1eddi gian 8 gi\u1edd cho t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m \u0111\u1ea1t kho\u1ea3ng 87,7% sau 25 ng\u00e0y.<\/p>\n<p>h)\u00a0 Gieo h\u1ea1t:<\/p>\n<ul>\n<li>Gi\u00e1 th\u1ec3 gieo h\u1ea1t: S\u1eed d\u1ee5ng c\u00e1t v\u00e0ng \u0111\u00e3 \u0111\u01b0\u1ee3c r\u1eeda s\u1ea1ch v\u00e0 x\u1eed l\u00fd b\u1eb1ng thu\u1ed1c ch\u1ed1ng n\u1ea5m Mexyl Mz 72WP n\u1ed3ng \u0111\u1ed9 0,3% v\u1edbi li\u1ec1u l\u01b0\u1ee3ng 2 l\u00edt\/m2ho\u1eb7c d\u00f9ng c\u00e1c lo\u1ea1i thu\u1ed1c ph\u00f2ng b\u1ec7nh \u0111\u01b0\u1ee3c c\u1ea5p ph\u00e9p c\u1ee7a B\u1ed9 N\u00f4ng nghi\u1ec7p v\u00e0 M\u00f4i tr\u01b0\u1eddng. Lu\u1ed1ng c\u00e1t gieo h\u1ea1t r\u1ed9ng 1,0 m \u0111\u1ebfn 1,2 m, d\u00e0i 5 m \u0111\u1ebfn 10 m, d\u00e0y 5 cm \u0111\u1ebfn 10 cm t\u00f9y thu\u1ed9c \u0111\u1ecba h\u00ecnh v\u00e0 l\u01b0\u1ee3ng h\u1ea1t c\u1ea7n gieo. R\u1ea3i \u0111\u1ec1u h\u1ea1t tr\u00ean lu\u1ed1ng c\u00e1t, sau \u0111\u00f3 l\u1ea5p c\u00e1t ph\u1ee7 k\u00edn h\u1ea1t v\u1edbi \u0111\u1ed9 d\u00e0y 1,5 cm \u0111\u1ebfn 2,0 cm. M\u1ed9t kg h\u1ea1t th\u01b0\u1eddng gieo tr\u00ean di\u1ec7n t\u00edch 8 m2 \u0111\u1ebfn 10 m2.<\/li>\n<\/ul>\n<ul>\n<li>L\u00e0m gi\u00e0n che s\u00e1ng: Khung gi\u00e0n che \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng tre, g\u1ed7 ho\u1eb7c th\u00e9p, cao t\u1eeb 2,0 m \u0111\u1ebfn 2,5 m k\u1ec3 t\u1eeb m\u1eb7t lu\u1ed1ng, s\u1eed d\u1ee5ng l\u01b0\u1edbi nilon \u0111en che 50% \u00e1nh s\u00e1ng tr\u1ef1c x\u1ea1.<\/li>\n<li>Ch\u0103m s\u00f3c h\u1ea1t sau khi gieo: H\u00e0ng ng\u00e0y t\u01b0\u1edbi n\u01b0\u1edbc \u0111\u1ee7 \u1ea9m cho h\u1ea1t v\u00e0o c\u00e1c bu\u1ed5i s\u00e1ng s\u1edbm ho\u1eb7c chi\u1ec1u mu\u1ed9n, th\u01b0\u1eddng xuy\u00ean nh\u1eb7t c\u1ecf d\u1ea1i. H\u1ea1t b\u1eaft \u0111\u1ea7u n\u1ea3y m\u1ea7m sau 6 \u0111\u1ebfn 7 ng\u00e0y k\u1ec3 t\u1eeb khi gieo h\u1ea1t.<\/li>\n<\/ul>\n<p>i)\u00a0 T\u1ea1o b\u1ea7u:<\/p>\n<ul>\n<li>K\u00edch th\u01b0\u1edbc t\u00fai b\u1ea7u: S\u1eed d\u1ee5ng lo\u1ea1i t\u00fai b\u1ea7u Polyetylen ho\u1eb7c lo\u1ea1i v\u1ecf b\u1ea7u t\u1ef1 ho\u1ea1i c\u00f3 k\u00edch th\u01b0\u1edbc t\u1ed1i thi\u1ec3u 12 x 15 cm, b\u1ea7u c\u00f3 \u0111\u00e1y ho\u1eb7c kh\u00f4ng c\u00f3 \u0111\u00e1y. N\u1ebfu c\u00f3 \u0111\u00e1y th\u00ec c\u1eaft g\u00f3c ho\u1eb7c \u0111\u1ee5c t\u1eeb 4 &#8211; 6 l\u1ed7 xung quanh g\u1ea7n \u0111\u00e1y \u0111\u1ec3 tho\u00e1t n\u01b0\u1edbc.<\/li>\n<li>Th\u00e0nh ph\u1ea7n ru\u1ed9t b\u1ea7u t\u00ednh theo th\u1ec3 t\u00edch g\u1ed3m: 89% \u0111\u1ea5t m\u1eb7t + 10% ph\u00e2n chu\u1ed3ng hoai + 1% NPK (5:10:3).<\/li>\n<li>X\u1ebfp b\u1ea7u: B\u1ea7u sau khi \u0111\u00f3ng xong \u0111\u01b0\u1ee3c x\u1ebfp th\u00e0nh t\u1eebng lu\u1ed1ng r\u1ed9ng 1,0 &#8211; 1,2 m, d\u00e0i 5 &#8211; 10 m, r\u00e3nh lu\u1ed1ng r\u1ed9ng t\u1eeb 40 \u0111\u1ebfn 50 cm, l\u1ea5p ch\u00e2n b\u1ea7u b\u1eb1ng \u0111\u1ea5t b\u1ed9t v\u1edbi chi\u1ec1u cao \u0111\u1ebfn 2\/3 th\u00e2n b\u1ea7u.<\/li>\n<li>Th\u1eddi gian t\u1ea1o b\u1ea7u tr\u01b0\u1edbc khi c\u1ea5y c\u00e2y m\u1ea7m t\u1eeb 7 \u0111\u1ebfn 10 ng\u00e0y.<\/li>\n<\/ul>\n<p>j)\u00a0 C\u1ea5y c\u00e2y m\u1ea7m v\u00e0o b\u1ea7u:<\/p>\n<ul>\n<li>Th\u1eddi gian c\u1ea5y c\u00e2y v\u00e0o b\u1ea7u: S\u1eed d\u1ee5ng c\u00e2y m\u1ea1 kho\u1ea3ng 25 ng\u00e0y tu\u1ed5i k\u1ec3 t\u1eeb ng\u00e0y gieo h\u1ea1t, c\u00e2y c\u00f3 t\u1eeb 2 l\u00e1 m\u1ea7m, cao kho\u1ea3ng 5 \u0111\u1ebfn 7 cm \u0111\u1ec3 c\u1ea5y v\u00e0o b\u1ea7u.<\/li>\n<li>X\u1eed l\u00fd h\u1ed7n h\u1ee3p ru\u1ed9t b\u1ea7u tr\u01b0\u1edbc khi c\u1ea5y: Tr\u01b0\u1edbc khi c\u1ea5y c\u00e2y m\u1ea7m v\u00e0o b\u1ea7u, phun thu\u1ed1c ch\u1ed1ng n\u1ea5m Mexyl Mz 72WP n\u1ed3ng \u0111\u1ed9 0,3% (3g\/1 l\u00edt n\u01b0\u1edbc t\u01b0\u1edbi l\u00ean b\u1ea7u \u0111\u1ea5t) v\u1edbi li\u1ec1u l\u01b0\u1ee3ng 2 l\u00edt\/m2ho\u1eb7c d\u00f9ng c\u00e1c lo\u1ea1i thu\u1ed1c n\u1ea5m \u0111\u01b0\u1ee3c c\u1ea5p ph\u00e9p c\u1ee7a B\u1ed9 N\u00f4ng nghi\u1ec7p v\u00e0 M\u00f4i tr\u01b0\u1eddng.<\/li>\n<li>C\u1ea5y c\u00e2y m\u1ea7m: Ch\u1ecdn nh\u1eefng c\u00e2y kh\u1ecfe m\u1ea1nh, \u0111\u1ee7 ti\u00eau chu\u1ea9n, d\u00f9ng que t\u1ea1o m\u1ed9t l\u1ed7 ch\u00ednh gi\u1eefa b\u1ea7u, \u0111\u1eb7t c\u00e2y ngay ng\u1eafn v\u00e0 \u00e9p nh\u1eb9 hai b\u00ean g\u1ed1c c\u00e2y m\u1ea7m, m\u1ed7i b\u1ea7u c\u1ea5y 1 c\u00e2y, c\u1ea5y xong \u0111\u1ebfn \u0111\u00e2u t\u01b0\u1edbi \u1ea9m \u0111\u1ebfn \u0111\u00f3.<\/li>\n<li>Th\u1eddi \u0111i\u1ec3m c\u1ea5y: N\u00ean ch\u1ecdn nh\u1eefng ng\u00e0y r\u00e2m m\u00e1t \u0111\u1ec3 c\u1ea5y c\u00e2y, t\u1ed1t nh\u1ea5t v\u00e0o bu\u1ed5i chi\u1ec1u. Tr\u01b0\u1edbc khi c\u1ea5y c\u00e2y 1 ng\u00e0y c\u1ea7n t\u01b0\u1edbi n\u01b0\u1edbc \u0111\u1ee7 \u1ea9m lu\u1ed1ng b\u1ea7u. C\u00e2y m\u1ea7m b\u1ee9ng t\u1edbi \u0111\u00e2u c\u1ea5y t\u1edbi \u0111\u00f3 kh\u00f4ng \u0111\u1ec3 \u0111\u1ebfn ng\u00e0y h\u00f4m<\/li>\n<\/ul>\n<p>k)\u00a0 Ch\u0103m s\u00f3c c\u00e2y con:<\/p>\n<ul>\n<li>C\u1ea5y d\u1eb7m: Sau khi c\u1ea5y 5 &#8211; 10 ng\u00e0y, ki\u1ec3m tra v\u00e0 c\u1ea5y d\u1eb7m nh\u1eefng c\u00e2y b\u1ecb ch\u1ebft.<\/li>\n<li>T\u01b0\u1edbi n\u01b0\u1edbc: Th\u01b0\u1eddng xuy\u00ean t\u01b0\u1edbi n\u01b0\u1edbc \u0111\u1ee7 \u1ea9m cho lu\u1ed1ng c\u00e2y v\u1edbi t\u1ea7n su\u1ea5t 2 l\u1ea7n v\u00e0o bu\u1ed5i s\u00e1ng s\u1edbm v\u00e0 chi\u1ec1u mu\u1ed9n, l\u01b0\u1ee3ng t\u01b0\u1edbi 3 &#8211; 4 l\u00edt\/m2(tr\u1eeb c\u00e1c ng\u00e0y m\u01b0a) nh\u01b0ng kh\u00f4ng \u0111\u1ec3 \u00fang n\u01b0\u1edbc. Khi c\u00e2y c\u00f2n nh\u1ecf trung b\u00ecnh t\u01b0\u1edbi 1 ng\u00e0y\/l\u1ea7n, sau \u0111\u00f3 c\u00f3 th\u1ec3 gi\u1ea3m xu\u1ed1ng 2 &#8211; 3 ng\u00e0y t\u01b0\u1edbi\/l\u1ea7n v\u1edbi l\u01b0\u1ee3ng t\u01b0\u1edbi nh\u01b0 tr\u00ean.<\/li>\n<li>L\u00e0m c\u1ecf, ph\u00e1 v\u00e1ng: Theo d\u00f5i qu\u00e1 tr\u00ecnh sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y con trong v\u01b0\u1eddn \u01b0\u01a1m, \u0111\u1ecbnh k\u1ef3 15 \u0111\u1ebfn 20 ng\u00e0y ti\u1ebfn h\u00e0nh nh\u1ed5 c\u1ecf, ph\u00e1 v\u00e1ng 1 l\u1ea7n.<\/li>\n<li>B\u00f3n th\u00fac: B\u00f3n th\u00fac 3 l\u1ea7n b\u1eb1ng c\u00e1ch h\u00f2a tan 25 g ph\u00e2n NPK v\u1edbi 2,5 l\u00edt n\u01b0\u1edbc s\u1ea1ch, t\u01b0\u1edbi cho 100 b\u1ea7u; l\u1ea7n 1 sau khi c\u1ea5y \u0111\u01b0\u1ee3c 3 th\u00e1ng, l\u1ea7n 2 sau khi c\u1ea5y 6 th\u00e1ng v\u00e0 l\u1ea7n 3 sau khi c\u1ea5y \u0111\u01b0\u1ee3c 9 th\u00e1ng. Th\u1eddi \u0111i\u1ec3m t\u01b0\u1edbi v\u00e0o bu\u1ed5i s\u00e1ng s\u1edbm ho\u1eb7c chi\u1ec1u m\u00e1t. Sau m\u1ed7i l\u1ea7n b\u00f3n th\u00fac ti\u1ebfn h\u00e0nh t\u01b0\u1edbi r\u1eeda l\u00e1 b\u1eb1ng n\u01b0\u1edbc s\u1ea1ch.<\/li>\n<li>\u0110i\u1ec1u ch\u1ec9nh gi\u00e0n che: d\u1ee1 b\u1ecf to\u00e0n b\u1ed9 gi\u00e0n che sau 6 th\u00e1ng gieo \u01b0\u01a1m \u0111\u1ec3 hu\u1ea5n luy\u1ec7n c\u00e2y con th\u00edch nghi v\u1edbi m\u00f4i tr\u01b0\u1eddng t\u1ef1 nhi\u00ean.<\/li>\n<li>\u0110\u1ea3o b\u1ea7u v\u00e0 ph\u00e2n lo\u1ea1i c\u00e2y: Sau khi c\u1ea5y c\u00e2y \u0111\u01b0\u1ee3c 5 \u0111\u1ebfn 6 th\u00e1ng, ti\u1ebfn h\u00e0nh \u0111\u1ea3o b\u1ea7u v\u00e0o ng\u00e0y r\u00e2m m\u00e1t, x\u00e9n r\u1ec5 k\u1ebft h\u1ee3p ph\u00e2n lo\u1ea1i c\u00e2y con \u0111\u1ec3 l\u1ecdc ra c\u00e1c c\u00e2y sinh tr\u01b0\u1edfng t\u1ed1t \u0111\u1ec3 ri\u00eang m\u1ed9t khu v\u00e0 c\u00e2y x\u1ea5u \u0111\u1ec3 ri\u00eang m\u1ed9t khu ti\u1ec7n cho vi\u1ec7c ch\u0103m s\u00f3c. Ti\u1ebfn h\u00e0nh \u0111\u1ea3o b\u1ea7u l\u1ea7n th\u1ee9 2 tr\u01b0\u1edbc khi xu\u1ea5t v\u01b0\u1eddn kho\u1ea3ng 1 th\u00e1ng.<\/li>\n<\/ul>\n<p>l)\u00a0 Ph\u00f2ng tr\u1eeb s\u00e2u, b\u1ec7nh h\u1ea1i:<\/p>\n<p>Th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra t\u00ecnh h\u00ecnh s\u00e2u, b\u1ec7nh \u0111\u1ec3 c\u00f3 bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u1eeb k\u1ecbp th\u1eddi. Khi ph\u00e1t hi\u1ec7n th\u1ea5y c\u00f3 s\u00e2u, b\u1ec7nh th\u00ec \u00e1p d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u1eeb t\u1ed5ng h\u1ee3p \u0111\u1ec3 tr\u1eeb s\u00e2u b\u1ec7nh, n\u1ebfu s\u1eed d\u1ee5ng thu\u1ed1c h\u00f3a h\u1ecdc th\u00ec ph\u1ea3i d\u00f9ng c\u00e1c lo\u1ea1i thu\u1ed1c \u0111\u01b0\u1ee3c ph\u00e9p s\u1eed d\u1ee5ng theo quy \u0111\u1ecbnh c\u1ee7a B\u1ed9 N\u00f4ng nghi\u1ec7p v\u00e0 M\u00f4i tr\u01b0\u1eddng.<\/p>\n<p>m)\u00a0\u00a0 Ti\u00eau chu\u1ea9n c\u00e2y con xu\u1ea5t v\u01b0\u1eddn:<\/p>\n<p>C\u00e2y gi\u1ed1ng G\u1ee5 lau \u0111\u1ee7 ti\u00eau chu\u1ea9n xu\u1ea5t v\u01b0\u1eddn \u0111\u1ec3 tr\u1ed3ng r\u1eebng c\u1ea7n ph\u1ea3i \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c ti\u00eau chu\u1ea9n sau:<\/p>\n<p>Tu\u1ed5i c\u00e2y con: \u00edt nh\u1ea5t 12 th\u00e1ng tu\u1ed5i k\u1ec3 t\u1eeb khi gieo h\u1ea1t. \u0110\u01b0\u1eddng k\u00ednh c\u1ed5 r\u1ec5 t\u1eeb 0,6 cm tr\u1edf l\u00ean.<\/p>\n<p>Chi\u1ec1u cao v\u00fat ng\u1ecdn: t\u1eeb 60 cm tr\u1edf l\u00ean.<\/p>\n<p>C\u00e2y sinh tr\u01b0\u1edfng t\u1ed1t, kh\u00f4ng c\u00f3 bi\u1ec3u hi\u1ec7n b\u1ecb s\u00e2u b\u1ec7nh h\u1ea1i, kh\u00f4ng b\u1ecb c\u1ee5t ng\u1ecdn, v\u1ee1 b\u1ea7u.<\/p>\n<p><em><strong>4.2.\u00a0\u00a0 Ph\u1ea1m vi \u1ee9ng d\u1ee5ng<\/strong><\/em><\/p>\n<p>Ti\u1ebfn b\u1ed9 k\u1ef9 thu\u1eadt nh\u00e2n gi\u1ed1ng b\u1eb1ng h\u1ea1t c\u00e2y G\u1ee5 lau \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng t\u1ea1i c\u00e1c c\u01a1 s\u1edf s\u1ea3n xu\u1ea5t gi\u1ed1ng l\u00e0 c\u00e1c h\u1ed9 gia \u0111\u00ecnh ho\u1eb7c t\u1ed5 ch\u1ee9c, c\u00e1 nh\u00e2n \u1edf c\u00e1c t\u1ec9nh v\u00f9ng duy\u00ean h\u1ea3i mi\u1ec1n Trung v\u00e0 nh\u1eefng n\u01a1i c\u00f3 \u0111i\u1ec1u ki\u1ec7n sinh th\u00e1i t\u01b0\u01a1ng t\u1ef1.<\/p>\n<p><em><strong>4.3.\u00a0\u00a0 \u0110i\u1ec1u ki\u1ec7n v\u00e0 \u0111\u1ecba \u0111i\u1ec3m \u1ee9ng d\u1ee5ng<\/strong><\/em><\/p>\n<p>C\u00e1c t\u1ed5 ch\u1ee9c, c\u00e1 nh\u00e2n nh\u00e2n gi\u1ed1ng b\u1eb1ng h\u1ea1t c\u00e2y G\u1ee5 lau c\u1ea7n c\u00f3 \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n v\u1ec1 c\u01a1 s\u1edf v\u1eadt ch\u1ea5t, ngu\u1ed3n gi\u1ed1ng v\u00e0 nh\u00e2n l\u1ef1c, c\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n<ul>\n<li>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng: V\u01b0\u1eddn \u01b0\u01a1m \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u theo TCVN 13359:2021 &#8211; Gi\u1ed1ng c\u00e2y l\u00e2m nghi\u1ec7p &#8211; V\u01b0\u1eddn \u01b0\u01a1m c\u00e2y l\u00e2m nghi\u1ec7p.<\/li>\n<li>Ngu\u1ed3n gi\u1ed1ng: C\u00f3 c\u00e2y tr\u1ed9i \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn ho\u1eb7c ngu\u1ed3n h\u1ea1t \u0111\u01b0\u1ee3c thu h\u00e1i t\u1eeb c\u00e2y m\u1eb9 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng.<\/li>\n<li>Nh\u00e2n l\u1ef1c: C\u00f3 nh\u00e2n vi\u00ean k\u1ef9 thu\u1eadt th\u00e0nh th\u1ea1o v\u1ec1 k\u1ef9 thu\u1eadt nh\u00e2n gi\u1ed1ng gieo \u01b0\u01a1m t\u1eeb h\u1ea1t v\u00e0 ch\u0103m s\u00f3c c\u00e2y gi\u1ed1ng t\u1ea1i v\u01b0\u1eddn \u01b0\u01a1m.<\/li>\n<li>V\u1eadt t\u01b0: \u0110\u1ea3m b\u1ea3o \u0111\u1ee7 ch\u1ee7ng lo\u1ea1i v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng \u0111\u1ed1i v\u1edbi c\u00e1c lo\u1ea1i v\u1eadt t\u01b0 theo quy tr\u00ecnh k\u1ef9 thu\u1eadt nh\u00e2n gi\u1ed1ng b\u1eb1ng h\u1ea1t c\u00e2y G\u1ee5 lau n\u00eau tr\u00ean.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1.\u00a0\u00a0 T\u00ean ti\u1ebfn b\u1ed9 k\u1ef9 thu\u1eadt K\u1ef9 thu\u1eadt nh\u00e2n gi\u1ed1ng b\u1eb1ng h\u1ea1t c\u00e2y G\u1ee5 lau (Sindora tonkinensis A. Chev. ex K.&amp; S. S. Larsen). 2.\u00a0\u00a0 Ta\u0301c gia\u0309 Nh\u00f3m t\u00e1c gi\u1ea3 c\u1ee7a ti\u1ebfn b\u1ed9 k\u1ef9 thu\u1eadt: TS. V\u0169 \u0110\u1ee9c B\u00ecnh, TS. Ph\u1ea1m Xu\u00e2n \u0110\u1ec9nh, ThS. Nguy\u1ec5n Th\u1ecb Thanh Nga, ThS. Nguy\u1ec5n H\u1ea3i Th\u00e0nh, TS. Nguy\u1ec5n Th\u1ecb [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[174,72],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/24028"}],"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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=24028"}],"version-history":[{"count":3,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/24028\/revisions"}],"predecessor-version":[{"id":24033,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/24028\/revisions\/24033"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=24028"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=24028"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=24028"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}