{"id":662,"date":"2017-03-09T14:24:11","date_gmt":"2017-03-09T07:24:11","guid":{"rendered":"http:\/\/demo.prc.maiatech.com.vn\/?p=662"},"modified":"2017-03-09T14:24:11","modified_gmt":"2017-03-09T07:24:11","slug":"nghien-cuu-anh-huong-cua-thuoc-tru-co-den-quan-the-thien-dich-tren-ruong-lua","status":"publish","type":"post","link":"https:\/\/prc.org.vn\/?p=662","title":{"rendered":"Nghi\u00ean c\u1ee9u \u1ea3nh h\u01b0\u1edfng c\u1ee7a thu\u1ed1c tr\u1eeb c\u1ecf \u0111\u1ebfn qu\u1ea7n th\u1ec3 thi\u00ean \u0111\u1ecbch tr\u00ean ru\u1ed9ng l\u00faa"},"content":{"rendered":"<table>\n<tbody>\n<tr>\n<td colspan=\"2\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Vi\u1ec7c \u1ee9ng d\u1ee5ng ti\u1ebfn b\u1ed9 khoa h\u1ecdc trong s\u1ea3n xu\u1ea5t n\u00f4ng nghi\u1ec7p \u0111\u00e3 \u0111em l\u1ea1i nh\u1eefng l\u1ee3i \u00edch to l\u1edbn cho lo\u00e0i ng\u01b0\u1eddi. \u1ede c\u00e1c n\u01b0\u1edbc tr\u00ean th\u1ebf gi\u1edbi, ngay t\u1eeb khi c\u00f3 s\u1ef1 ra \u0111\u1eddi c\u1ee7a thu\u1ed1c tr\u1eeb c\u1ecf \u0111\u1ea7u ti\u00ean l\u00e0 2,4D, vi\u1ec7c s\u1eed d\u1ee5ng ch\u00fang \u0111\u00e3 tr\u1edf n\u00ean kh\u00e1 ph\u1ed5 bi\u1ebfn v\u00e0 c\u00f3 th\u1ec3 coi l\u00e0 m\u1ed9t bi\u1ec7n ph\u00e1p kh\u00f4ng th\u1ec3 thi\u1ebfu trong s\u1ea3n xu\u1ea5t n\u00f4ng nghi\u1ec7p. \u1ede n\u01b0\u1edbc ta, m\u1eb7c d\u00f9 thu\u1ed1c tr\u1eeb c\u1ecf \u0111\u00e3 b\u1eaft \u0111\u1ea7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u1eeb cu\u1ed1i th\u1eadp k\u1ef7 60 nh\u01b0ng trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, do qu\u00e1 tr\u00ecnh chuy\u1ec3n d\u1ecbch c\u01a1 c\u1ea5u lao \u0111\u1ed9ng trong n\u00f4ng nghi\u1ec7p ng\u00e0y c\u00e0ng cao do \u0111\u00f3 thu\u1ed1c tr\u1eeb c\u1ecf ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c n\u00f4ng d\u00e2n quan t\u00e2m v\u00e0 s\u1eed d\u1ee5ng nhi\u1ec1u h\u01a1n. N\u0103m 2010 l\u01b0\u1ee3ng thu\u1ed1c tr\u1eeb c\u1ecf \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf n\u01b0\u1edbc ta l\u00e0 28.169 t\u1ea5n, chi\u1ebfm 38,8% t\u1ed5ng l\u01b0\u1ee3ng thu\u1ed1c BVTV v\u00e0 cao g\u1ea5p 4,2 l\u1ea7n so v\u1edbi l\u01b0\u1ee3ng d\u00f9ng c\u1ee7a n\u0103m 2000 (N. H. S\u01a1n, 2011). B\u00ean c\u1ea1nh t\u00e1c d\u1ee5ng t\u00edch c\u1ef1c, c\u00e1c thu\u1ed1c tr\u1eeb c\u1ecf c\u0169ng c\u00f3 th\u1ec3 g\u00e2y n\u00ean nh\u1eefng t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c \u0111\u1ebfn h\u1ec7 sinh th\u00e1i \u0111\u1ed3ng ru\u1ed9ng \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c nh\u00f3m sinh v\u1eadt ch\u1ee9c n\u0103ng nh\u01b0 \u0111\u1ed9ng v\u1eadt thu\u1ef7 sinh, vi sinh v\u1eadt \u0111\u1ea5t hay c\u00e1c lo\u00e0i c\u00f4n tr\u00f9ng thi\u00ean \u0111\u1ecbch b\u1eaft m\u1ed3i n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd (Crossy, 1983). G\u1ea7n \u0111\u00e2y, do s\u1ef1 gia t\u0103ng v\u1ec1 m\u1ee9c \u0111\u1ed9 s\u1eed d\u1ee5ng thu\u1ed1c tr\u1eeb c\u1ecf, nhi\u1ec1u nh\u00e0 qu\u1ea3n l\u00fd, nh\u00e0 chuy\u00ean m\u00f4n v\u00e0 n\u00f4ng d\u00e2n b\u0103n kho\u0103n li\u1ec7u c\u00e1c thu\u1ed1c tr\u1eeb c\u1ecf \u1ea3nh h\u01b0\u1edfng th\u1ebf n\u00e0o \u0111\u1ebfn dinh d\u01b0\u1ee1ng, th\u00e0nh ph\u1ea7n c\u01a1 gi\u1edbi \u0111\u1ea5t, h\u1ec7 vi sinh v\u1eadt \u0111\u1ea5t v\u00e0 c\u00e1c lo\u1ea1i vi sinh v\u1eadt c\u00f3 \u00edch.K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y:<\/p>\n<p>H\u1ea7u h\u1ebft c\u00e1c thu\u1ed1c tr\u1eeb c\u1ecf \u0111\u1ec1u c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c thi\u00ean \u0111\u1ecbch tr\u00ean ru\u1ed9ng ru\u1ed9ng nh\u01b0 nh\u1ec7n, b\u1ecd r\u00f9a. Trong s\u1ed1 c\u00e1c ho\u1ea1t ch\u1ea5t nghi\u00ean c\u1ee9u, m\u1ee9c \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng r\u00f5 r\u1ec7t nh\u1ea5t l\u00e0 Quinclorac, Oxadiazone v\u00e0 Ethoxysulfuron. C\u00e1c thu\u1ed1c \u00edt \u1ea3nh h\u01b0\u1edfng nh\u1ea5t l\u00e0 Pretilachlor, Butachlor v\u00e0 Ethoxysulfuron. Trong v\u1ee5 m\u00f9a, m\u1ee9c \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng th\u01b0\u1eddng cao h\u01a1n so v\u1edbi v\u1ee5 xu\u00e2n, tuy nhi\u00ean kh\u00f4ng th\u1ea5y c\u00f3 s\u1ef1 t\u00edch l\u0169y r\u00f5 r\u1ec7t v\u1ec1 \u0111\u1ed9 \u0111\u1ed9c c\u1ee7a thu\u1ed1c sau hai v\u1ee5 s\u1eed d\u1ee5ng li\u00ean ti\u1ebfp. \u1ede t\u1ea5t c\u1ea3 c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m, m\u1eadt \u0111\u1ed9 thi\u00ean \u0111\u1ecbch \u0111\u1ec1u h\u1ed3i ph\u1ee5c ngay sau phun 14 ng\u00e0y v\u00e0 g\u1ea7n nh\u01b0 h\u1ed3i ph\u1ee5c ho\u00e0n to\u00e0n sau phun 35 ng\u00e0y.<\/p>\n<p>Xem b\u00e1o c\u00e1o chi ti\u1ebft <a href=\"https:\/\/prc.maiatech.com.vn\/UserFiles\/File\/Bao%20cao%20khoa%20hoc\/11.%20NC%20anh%20huong%20cua%20thuoc%20tru%20co%20den%20quan%20the%20thien%20dich%20tren%20ruong%20lua.pdf\">t\u1ea1i \u0111\u00e2y<\/a><\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">\u0110\u1ed7 Th\u1ecb Lan, Nguy\u1ec5n H\u1ed3ng S\u01a1n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Vi\u1ec7c \u1ee9ng d\u1ee5ng ti\u1ebfn b\u1ed9 khoa h\u1ecdc trong s\u1ea3n xu\u1ea5t n\u00f4ng nghi\u1ec7p \u0111\u00e3 \u0111em l\u1ea1i nh\u1eefng l\u1ee3i \u00edch to<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[47],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/662"}],"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=662"}],"version-history":[{"count":1,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/662\/revisions"}],"predecessor-version":[{"id":663,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/662\/revisions\/663"}],"wp:attachment":[{"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=662"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=662"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=662"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}