{"id":13725,"date":"2014-09-30T09:12:26","date_gmt":"2014-09-30T02:12:26","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/?p=13725"},"modified":"2014-09-30T09:28:40","modified_gmt":"2014-09-30T02:28:40","slug":"hoi-nghi-khuyen-lam-toi-da-gia-tri-rung-trong-keo-cung-cap-go-xe-bang-cac-bien-phap-ky-thuat-lam-sinh","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/hoi-nghi-khuyen-lam-toi-da-gia-tri-rung-trong-keo-cung-cap-go-xe-bang-cac-bien-phap-ky-thuat-lam-sinh\/","title":{"rendered":"H\u1ed9i ngh\u1ecb khuy\u1ebfn l\u00e2m \u201cT\u1ed1i \u0111a gi\u00e1 tr\u1ecb r\u1eebng tr\u1ed3ng keo cung c\u1ea5p g\u1ed7 x\u1ebb b\u1eb1ng c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt l\u00e2m sinh\u201d"},"content":{"rendered":"

Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam b\u1ed9 v\u1eeba t\u1ed5 ch\u1ee9c h\u1ed9i ngh\u1ecb khuy\u1ebfn l\u00e2m \u201cT\u1ed1i \u0111a gi\u00e1 tr\u1ecb r\u1eebng tr\u1ed3ng keo cung c\u1ea5p g\u1ed7 x\u1ebb b\u1eb1ng c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt l\u00e2m sinh\u201d.<\/p>\n

Nh\u1eefng th\u00f4ng tin t\u1eeb h\u1ed9i ngh\u1ecb cho th\u1ea5y c\u00f3 th\u1ec3 \u0111\u01b0a r\u1eebng keo ch\u1ec9 l\u1ea5y g\u1ed7 l\u00e0m d\u0103m, gi\u1ea5y th\u00e0nh r\u1eebng l\u1ea5y g\u1ed7 x\u1ebb c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf cao h\u01a1n.<\/p>\n

H\u1ed9i ngh\u1ecb nh\u1eb1m \u0111\u00e1nh gi\u00e1 hi\u1ec7u qu\u1ea3 kinh t\u1ebf, k\u1ef9 thu\u1eadt c\u1ee7a d\u1ef1 \u00e1n \u201cQu\u1ea3n l\u00fd l\u00e2m sinh t\u1ed1i \u01b0u v\u00e0 n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng cho g\u1ed7 x\u1ebb ch\u1ea5t l\u01b0\u1ee3ng cao\u201d, do Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam b\u1ed9 ph\u1ed1i h\u1ee3p c\u00f9ng Trung t\u00e2m N\u00f4ng nghi\u1ec7p Qu\u1ed1c t\u1ebf (ACIAR), th\u1ef1c hi\u1ec7n trong giai \u0111o\u1ea1n 2008- 2013.<\/p>\n

\"14-09-22VienNamBokeo\"<\/a><\/p>\n

Theo TS Ph\u1ea1m Th\u1ebf D\u0169ng, Q. Vi\u1ec7n tr\u01b0\u1edfng Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam b\u1ed9, r\u1eebng tr\u1ed3ng \u1edf n\u01b0\u1edbc ta ch\u1ee7 y\u1ebfu l\u00e0 c\u00e1c lo\u00e0i keo m\u1ecdc nhanh v\u1edbi k\u1ef9 thu\u1eadt tr\u1ed3ng truy\u1ec1n th\u1ed1ng nh\u1eb1m cung c\u1ea5p g\u1ed7 gi\u1ea5y v\u00e0 b\u0103m d\u0103m v\u1edbi gi\u00e1 tr\u1ecb r\u1eebng th\u1ea5p.<\/p>\n

Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i m\u1ee5c \u0111\u00edch kinh doanh t\u1eeb r\u1eebng\u00a0SX g\u1ed7 b\u1ed9t gi\u1ea5y sang cung c\u1ea5p g\u1ed7 l\u1edbn (g\u1ed7 x\u1ebb) \u0111ang thi\u1ebfu c\u1ea3 k\u1ef9 thu\u1eadt tr\u1ed3ng m\u1edbi ngay t\u1eeb ban \u0111\u1ea7u c\u0169ng nh\u01b0 k\u1ef9 thu\u1eadt x\u1eed l\u00fd v\u1edbi r\u1eebng c\u0169 c\u00f3 d\u1ef1 \u0111\u1ecbnh chuy\u1ec3n h\u00f3a.<\/p>\n

B\u1edfi \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c t\u1ef7 l\u1ec7 s\u1eed d\u1ee5ng g\u1ed7 cao, g\u1ed7 \u00edt b\u1ecb khuy\u1ebft t\u1eadt, kh\u00fac g\u1ed7 su\u00f4n \u00edt m\u1ea5u m\u1eaft\u2026 cho m\u1ee5c ti\u00eau l\u00e0m g\u1ed7 x\u1ebb, th\u00ec c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec1u ph\u1ea3i li\u00ean quan, t\u1eeb kh\u00e2u ch\u1ecdn gi\u1ed1ng \u0111\u1ebfn k\u1ef9 thu\u1eadt l\u00e2m sinh nh\u01b0 tr\u1ed3ng, b\u00f3n ph\u00e2n, t\u1ec9a c\u00e0nh, t\u1ec9a t\u00e1n, t\u1ec9a th\u01b0a, ki\u1ec3m so\u00e1t b\u1ec7nh h\u1ea1i. Ch\u00ednh v\u00ec th\u1ebf, d\u1ef1 \u00e1n \u0111\u00e3 kh\u1edfi \u0111\u1ea7u nghi\u00ean c\u1ee9u v\u1ec1 v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/p>\n

D\u1ef1 \u00e1n \u0111\u00e3 thi\u1ebft l\u1eadp 11 th\u00ed nghi\u1ec7m, tr\u1ea3i d\u00e0i t\u1eeb mi\u1ec1n Nam ra mi\u1ec1n Trung (Qu\u1ea3ng Tr\u1ecb), t\u1edbi mi\u1ec1n B\u1eafc (Tuy\u00ean Quang, H\u00e0 N\u1ed9i). T\u1ea5t c\u1ea3 \u0111\u1ec1u \u00e1p d\u1ee5ng k\u1ef9 thu\u1eadt qu\u1ea3n l\u00fd l\u1eadp \u0111\u1ecba (\u0111\u1ec3 l\u1ea1i c\u00e0nh nh\u00e1nh sau khai th\u00e1c r\u1eebng chu k\u1ef3 tr\u01b0\u1edbc, ki\u1ec3m so\u00e1t c\u1ecf d\u1ea1i b\u1eb1ng h\u00f3a ch\u1ea5t \u00edt nh\u1ea5t 2 n\u0103m, s\u1eed d\u1ee5ng ph\u00e2n l\u00e2n trong tr\u1ed3ng r\u1eebng v\u1edbi m\u1ee9c trung b\u00ecnh 50 kg\/ha).<\/p>\n

hi\u1ec1u k\u1ef9 thu\u1eadt l\u00e2m sinh \u0111\u00e3 gi\u00fap n\u00e2ng cao \u0111\u00e1ng k\u1ec3 hi\u1ec7u qu\u1ea3\u00a0SX cho r\u1eebng tr\u1ed3ng keo. Ch\u1eb3ng h\u1ea1n, tr\u01b0\u1edbc \u0111\u00e2y, khi chu\u1ea9n b\u1ecb hi\u1ec7n tr\u01b0\u1eddng tr\u1ed3ng r\u1eebng, ng\u01b0\u1eddi ta th\u01b0\u1eddng d\u00f9ng c\u00e1c bi\u1ec7n ph\u00e1p nh\u01b0 c\u01a1 gi\u1edbi (s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i m\u00e1y c\u00e0y, b\u1eeba t\u00e1c \u0111\u1ed9ng m\u1ea1nh \u0111\u1ebfn b\u1ec1 m\u1eb7t), h\u00f3a h\u1ecdc (thu\u1ed1c di\u1ec7t c\u1ecf) hay \u0111\u1ed1t to\u00e0n di\u1ec7n.<\/p>\n

Nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ec1u c\u00f3 nh\u1eefng h\u1ea1n ch\u1ebf l\u1edbn: C\u01a1 gi\u1edbi l\u00e0m thay \u0111\u1ed5i k\u1ebft c\u1ea5u \u0111\u1ea5t, d\u1ec5 g\u00e2y r\u1eeda tr\u00f4i b\u1ec1 m\u1eb7t khi c\u00f3 m\u01b0a, kh\u00f3 \u00e1p d\u1ee5ng n\u01a1i \u0111\u1ecba h\u00ecnh d\u1ed1c; ch\u1ea5t h\u00f3a h\u1ecdc d\u1ec5 g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng; \u0111\u1ed1t to\u00e0n di\u1ec7n l\u00e0m h\u1ea1i nh\u1ea5t \u0111\u1ebfn n\u1ec1n \u0111\u1ea5t r\u1eebng (gi\u1ea3m 70% ch\u1ea5t dinh d\u01b0\u1ee1ng trong \u0111\u1ea5t)\u2026<\/p>\n

C\u00f2n \u1edf nh\u1eefng r\u1eebng tr\u1ed3ng trong d\u1ef1 \u00e1n, s\u1ebd gi\u1eef l\u1ea1i c\u00e1c v\u1eadt li\u1ec7u h\u1eefu c\u01a1 sau khi khai th\u00e1c nh\u1eb1m c\u1ea3i thi\u1ec7n \u0111\u1ea5t. Nh\u1edd \u0111\u00f3, \u0111\u00e3 l\u00e0m t\u0103ng 11,24% ch\u1ea5t h\u1eefu c\u01a1, 8,33% \u0111\u1ea1m, 6,97% l\u00e2n v\u00e0 3,38% cation. Qua \u0111\u00f3, g\u00f3p ph\u1ea7n l\u00e0m t\u0103ng t\u1eeb 2 \u2013 4 m3\/ha\/n\u0103m.<\/p>\n

\u0110\u1eb7c bi\u1ec7t, gi\u1ea3i ph\u00e1p t\u1ec9a c\u00e0nh, t\u1ec9a th\u01b0a t\u1ea1o ra s\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 v\u1ec1 l\u1ee3i nhu\u1eadn v\u00e0 t\u1ef7 l\u1ec7 g\u1ed7 x\u1ebb so v\u1edbi r\u1eebng b\u00ecnh th\u01b0\u1eddng.<\/p>\n

Theo Th.S Tr\u1ea7n Thanh Cao, Ph\u00f3 Vi\u1ec7n tr\u01b0\u1edfng Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam b\u1ed9, l\u00e2u nay khi tr\u1ed3ng keo lai l\u1ea5y g\u1ed7, ng\u01b0\u1eddi ta th\u01b0\u1eddng tr\u1ed3ng m\u1eadt \u0111\u1ed9 d\u00e0y.<\/p>\n

Bi\u1ec7n ph\u00e1p n\u00e0y l\u00e0m t\u0103ng kh\u1ed1i l\u01b0\u1ee3ng g\u1ed7 n\u00f3i chung, nh\u01b0ng t\u1ef7 l\u1ec7 g\u1ed7 x\u1ebb (g\u1ed7 l\u1edbn) l\u1ea1i th\u1ea5p, n\u00ean ch\u1ec9 ch\u1ee7 y\u1ebfu s\u1eed d\u1ee5ng l\u00e0m d\u0103m g\u1ed7, l\u00e0m gi\u1ea5y, th\u00e0nh ra hi\u1ec7u qu\u1ea3 kinh t\u1ebf kh\u00f4ng cao.<\/p>\n

V\u00ec th\u1ebf, gi\u1ea3i ph\u00e1p t\u1ec9a th\u01b0a s\u1ebd gi\u00fap cho c\u00e2y keo lai t\u0103ng \u0111\u01b0\u1eddng k\u00ednh nhanh h\u01a1n \u0111\u1ec3 s\u1edbm \u0111\u1ea1t ti\u00eau chu\u1ea9n v\u1ec1 g\u1ed7 x\u1ebb, t\u1ea1o ra gi\u00e1 tr\u1ecb kinh t\u1ebf cao h\u01a1n tr\u01b0\u1edbc \u0111\u00e2y.<\/p>\n

C\u00e1c l\u1ea7n t\u1ec9a g\u1ed3m t\u1ec9a \u0111\u01a1n th\u00e2n (t\u1ec9a \u0111\u1ea7u c\u00e0nh, ch\u1ec9 \u0111\u1ec3 l\u1ea1i th\u00e2n \u0111\u1eb9p nh\u1ea5t, nh\u1eefng th\u00e2n kh\u00e1c c\u1eaft 50%; t\u1ec9a l\u1ea7n 1 khi 4 th\u00e1ng, l\u1ea7n 2 khi 8 th\u00e1ng tu\u1ed5i), t\u1ec9a t\u1ea1o d\u00e1ng (t\u1ec9a \u0111\u1ea7u c\u00e0nh, nh\u1eefng c\u00e0nh l\u1edbn c\u1ea1nh tranh v\u1edbi th\u00e2n ch\u00ednh \u0111\u01b0\u1ee3c c\u1eaft b\u1ecf 50%; th\u1eddi \u0111i\u1ec3m t\u1ec9a t\u1eeb 8 \u2013 18 th\u00e1ng, th\u1ef1c hi\u1ec7n 2 \u2013 3 l\u1ea7n; \u0111\u1ea3m b\u1ea3o th\u00e2n th\u1eb3ng t\u1edbi 4,5 m), t\u1ec9a c\u00e0nh n\u00e2ng \u0111\u1ed9 cao t\u00e1n (th\u1eddi \u0111i\u1ec3m t\u1ec9a t\u1eeb 18 \u2013 24 th\u00e1ng, v\u00e0o \u0111\u1ea7u m\u00f9a kh\u00f4; t\u1ec9a s\u00e1t th\u00e2n to\u00e0n b\u1ed9 c\u00e0nh l\u00ean \u0111\u1ed9 cao th\u00edch h\u1ee3p; t\u1ec9a 1 \u2013 2 l\u1ea7n t\u00f9y v\u00e0o m\u1ee5c \u0111\u00edch kinh doanh, t\u1edbi \u0111\u1ed9 cao 4,5 m) v\u00e0 t\u1ec9a th\u01b0a (khi c\u00e2y \u0111\u1ea1t \u0111\u01b0\u1eddng k\u00ednh t\u1eeb 11 \u2013 12 cm; t\u1ec9a nh\u1eefng c\u00e2y sinh tr\u01b0\u1edfng k\u00e9m b\u1ecb b\u1ec7nh, g\u1eaby ng\u1ecdn\u2026).<\/p>\n

K\u1ebft qu\u1ea3 tr\u00ean th\u1ef1c t\u1ebf \u0111\u00e3 ch\u1ee9ng minh \u0111i\u1ec1u n\u00e0y. Khi \u00e1p d\u1ee5ng k\u1ef9 thu\u1eadt t\u1ec9a th\u01b0a \u1edf tu\u1ed5i th\u1ee9 3 v\u1edbi m\u1eadt \u0111\u1ed9 t\u1eeb 1.111 c\u00e2y\/ha xu\u1ed1ng c\u00f2n 600 c\u00e2y\/ha, l\u1ee3i nhu\u1eadn v\u00e0 t\u1ef7 l\u1ec7 g\u1ed7 x\u1ebb cao h\u01a1n h\u1eb3n so v\u1edbi r\u1eebng b\u00ecnh th\u01b0\u1eddng.<\/p>\n

C\u1ee5 th\u1ec3, t\u00ednh \u0111\u1ebfn n\u0103m th\u1ee9 8 (2015), r\u1eebng cho l\u1ee3i nhu\u1eadn l\u00e0 120,7 tri\u1ec7u \u0111\/ha. Trong khi \u0111\u00f3, l\u1ee3i nhu\u1eadn \u1edf r\u1eebng b\u00ecnh th\u01b0\u1eddng ch\u1ec9 l\u00e0 77 tri\u1ec7u \u0111\/ha. \u0110\u1ea5y l\u00e0 ch\u01b0a k\u1ec3 kho\u1ea3n thu nh\u1eadp t\u1eeb b\u00e1n g\u1ed7 nh\u1ecf h\u01a1n 10 tri\u1ec7u \u0111\/ha khi ti\u1ebfn h\u00e0nh t\u1ec9a th\u01b0a v\u00e0o n\u0103m th\u1ee9 3.<\/p>\n

 <\/p>\n

C\u0169ng \u0111\u1ebfn n\u0103m th\u1ee9 8, \u1edf nh\u1eefng r\u1eebng th\u00ed nghi\u1ec7m \u00e1p d\u1ee5ng bi\u1ec7n ph\u00e1p t\u1ec9a th\u01b0a, kh\u1ed1i l\u01b0\u1ee3ng g\u1ed7 x\u1ebb l\u1edbn \u0111\u1ea1t 48,7 m3\/ha, g\u1ea5p h\u01a1n 3 l\u1ea7n so v\u1edbi r\u1eebng tr\u1ed3ng b\u00ecnh th\u01b0\u1eddng (16 m3\/ha). \u0110\u01b0\u1eddng k\u00ednh g\u1ed7 x\u1ebb \u1edf c\u00e1c r\u1eebng th\u00ed nghi\u1ec7m t\u1ec9a th\u01b0a c\u0169ng cao h\u01a1n h\u1eb3n so v\u1edbi c\u00e1c r\u1eebng b\u00ecnh th\u01b0\u1eddng (19,8 cm so v\u1edbi 15 cm).<\/em><\/strong><\/p>\n

 <\/p>\n

Th.S Ki\u1ec1u Tu\u1ea5n \u0110\u1ea1t, G\u0110 Trung t\u00e2m \u1ee8ng d\u1ee5ng KHKT L\u00e2m nghi\u1ec7p Nam b\u1ed9 cho bi\u1ebft, vi\u1ec7c b\u00f3n l\u00e2n cho r\u1eebng tr\u1ed3ng keo v\u1edbi li\u1ec1u l\u01b0\u1ee3ng v\u00e0 k\u1ef9 thu\u1eadt h\u1ee3p l\u00fd s\u1ebd l\u00e0m t\u0103ng s\u1ee9c kh\u1ecfe v\u00e0 sinh tr\u01b0\u1edfng c\u1ee7a keo lai \u1edf giai \u0111o\u1ea1n m\u1edbi tr\u1ed3ng (v\u00f9ng \u0110\u00f4ng Nam b\u1ed9\u00a0b\u00f3n 10 \u2013 20 kg\/ha, mi\u1ec1n Trung v\u00e0 ph\u00eda B\u1eafc c\u00f3 th\u1ec3 b\u00f3n \u0111\u1ebfn 50 kg\/ha).<\/em><\/strong><\/p>\n

Ngu\u1ed3n: http:\/\/nongnghiep.vn\/nongnghiepvn\/vi-vn\/25\/131578\/ky-thuat-nghe-nong\/ky-thuat-lam-sinh-tang-nang-suat-keo-lai.html<\/p>\n","protected":false},"excerpt":{"rendered":"

Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam b\u1ed9 v\u1eeba t\u1ed5 ch\u1ee9c h\u1ed9i ngh\u1ecb khuy\u1ebfn l\u00e2m \u201cT\u1ed1i \u0111a gi\u00e1 tr\u1ecb r\u1eebng tr\u1ed3ng keo cung c\u1ea5p g\u1ed7 x\u1ebb b\u1eb1ng c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt l\u00e2m sinh\u201d. Nh\u1eefng th\u00f4ng tin t\u1eeb h\u1ed9i ngh\u1ecb cho th\u1ea5y c\u00f3 th\u1ec3 \u0111\u01b0a r\u1eebng keo ch\u1ec9 l\u1ea5y g\u1ed7 l\u00e0m d\u0103m, gi\u1ea5y th\u00e0nh r\u1eebng l\u1ea5y […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[14,72],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/13725"}],"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=13725"}],"version-history":[{"count":3,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/13725\/revisions"}],"predecessor-version":[{"id":13729,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/13725\/revisions\/13729"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=13725"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=13725"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=13725"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}