{"id":688,"date":"2017-03-09T14:31:41","date_gmt":"2017-03-09T07:31:41","guid":{"rendered":"http:\/\/demo.prc.maiatech.com.vn\/?p=688"},"modified":"2017-07-08T18:33:38","modified_gmt":"2017-07-08T11:33:38","slug":"ket-qua-nghien-cuu-mot-so-bien-phap-ky-thuat-nang-cao-nang-suat-giong-khoai-mo-trui-trang-tai-huu-lung-lang-son","status":"publish","type":"post","link":"https:\/\/prc.org.vn\/?p=688","title":{"rendered":"K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u m\u1ed9t s\u1ed1 bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt n\u00e2ng cao n\u0103ng su\u1ea5t gi\u1ed1ng khoai m\u1ee1 tr\u1ee5i tr\u1eafng t\u1ea1i H\u1eefu L\u0169ng, L\u1ea1ng S\u01a1n"},"content":{"rendered":"<table>\n<tbody>\n<tr>\n<td colspan=\"2\">\n<p style=\"text-align: justify;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Khoai m\u1ee1 (<em>Dioscorea alata<\/em> L.) v\u1eeba l\u00e0 c\u00e2y l\u01b0\u01a1ng th\u1ef1c, v\u1eeba l\u00e0 c\u00e2y th\u1ef1c ph\u1ea9m. C\u1ee7 khoai m\u1ee1 c\u00f3 gi\u00e1 tr\u1ecb dinh d\u01b0\u1ee1ng cao, c\u00f3 th\u1ec3 d\u00f9ng \u0111\u1ec3 n\u1ea5u th\u00e0nh nhi\u1ec1u m\u00f3n: lu\u1ed9c \u0103n, n\u1ea5u \u0111\u1ed9n v\u1edbi c\u01a1m, th\u1ed5i x\u00f4i, n\u1ea5u c\u00e1c m\u00f3n canh, n\u1ea5u cari, h\u1ea7m v\u1edbi th\u1ecbt, n\u1ea5u ch\u00e8&#8230;v\u00e0 l\u00e0m nguy\u00ean li\u1ec7u cho c\u00f4ng nghi\u1ec7p ch\u1ebf bi\u1ebfn s\u1ea3n xu\u1ea5t tinh b\u1ed9t, c\u1ed3n v\u00e0 r\u01b0\u1ee3u. Th\u1ebf gi\u1edbi h\u00e0ng n\u0103m s\u1ea3n xu\u1ea5t kho\u1ea3ng 51,8 tri\u1ec7u t\u1ea5n c\u00e1c lo\u1ea1i khoai m\u1ee1. Hi\u1ec7n nay, khoai m\u1ee1 v\u1eabn l\u00e0 ngu\u1ed3n l\u01b0\u01a1ng th\u1ef1c c\u01a1 b\u1ea3n \u0111\u1ea3m b\u1ea3o an ninh l\u01b0\u01a1ng th\u1ef1c cho h\u01a1n 300 tri\u1ec7u ng\u01b0\u1eddi \u1edf c\u00e1c n\u01b0\u1edbc c\u00f3 thu nh\u1eadp th\u1ea5p c\u1ee7a v\u00f9ng nhi\u1ec7t \u0111\u1edbi ch\u00e2u Phi. T\u1ea1i c\u00e1c n\u01b0\u1edbc ph\u00e1t tri\u1ec3n nh\u01b0 M\u1ef9, Anh, Ph\u00e1p, Nh\u1eadt B\u1ea3n, \u00dd&#8230; khoai m\u1ee1 l\u00e0 c\u00e2y th\u1ef1c ph\u1ea9m s\u1ea1ch c\u00f3 nhu c\u1ea7u ti\u00eau th\u1ee5 cao. C\u00e2y khoai m\u1ee1 c\u0169ng l\u00e0 c\u00e2y l\u01b0\u01a1ng th\u1ef1c quan tr\u1ecdng \u1edf \u0110\u00f4ng Nam \u00c1, \u0111\u1eb7c bi\u1ec7t \u1edf Indonesia, Philippines v\u00e0 c\u00e1c \u0111\u1ea3o Nam Th\u00e1i B\u00ecnh D\u01b0\u01a1ng t\u1edbi Guinea. \u1ede Vi\u1ec7t Nam, khoai m\u1ee1 \u0111\u01b0\u1ee3c tr\u1ed3ng ph\u1ed5 bi\u1ebfn t\u1ea1i c\u00e1c v\u00f9ng trung du, mi\u1ec1n n\u00fai, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 c\u00e2y l\u01b0\u01a1ng th\u1ef1c, th\u1ef1c ph\u1ea9m \u0111\u1eb7c s\u1ea3n c\u1ee7a t\u1eebng v\u00f9ng, mi\u1ec1n.<\/p>\n<p style=\"text-align: justify;\">T\u1ea1i H\u1eefu L\u0169ng t\u1ec9nh L\u1ea1ng S\u01a1n, khoai m\u1ee1 l\u00e0 c\u00e2y truy\u1ec1n th\u1ed1ng, c\u00f3 gi\u00e1 tr\u1ecb s\u1eed d\u1ee5ng cao, nh\u01b0ng v\u1eabn ch\u1ec9 l\u00e0 c\u00e2y tr\u1ed3ng ph\u1ee5 trong s\u1ea3n xu\u1ea5t n\u00f4ng nghi\u1ec7p. M\u1eb7c d\u00f9 c\u00f3 th\u1eddi gian di\u1ec7n t\u00edch tr\u1ed3ng khoai m\u1ee1 t\u1ea1i H\u1eefu L\u0169ng \u0111\u00e3 l\u00ean t\u1edbi h\u01a1n 100ha, nh\u01b0ng t\u1eeb n\u0103m 2006 \u0111\u1ebfn nay di\u1ec7n t\u00edch tr\u1ed3ng \u0111\u00e3 gi\u1ea3m m\u1ea1nh v\u00ec c\u00e1c gi\u1ed1ng \u0111\u1ecba ph\u01b0\u01a1ng \u0111\u00e3 b\u1ecb gi\u1ea3m n\u0103ng su\u1ea5t do m\u1ed9t s\u1ed1 nguy\u00ean nh\u00e2n ch\u00ednh nh\u01b0 gi\u1ed1ng kh\u00f4ng \u0111\u01b0\u1ee3c quan t\u00e2m ph\u1ee5c tr\u00e1ng; k\u1ef9 thu\u1eadt canh t\u00e1c ch\u1ee7 y\u1ebfu theo kinh nghi\u1ec7m, trong khi \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng \u0111\u00e3 thay \u0111\u1ed5i; v\u1eadt li\u1ec7u che ph\u1ee7 truy\u1ec1n th\u1ed1ng (c\u00e2y r\u00e0ng r\u00e0ng) c\u1ea7n thi\u1ebft cho s\u1ea3n xu\u1ea5t khoai m\u1ee1 khan hi\u1ebfm v\u00e0 th\u1ecb tr\u01b0\u1eddng ti\u00eau th\u1ee5 \u0111ang b\u1ecb thu h\u1eb9p, kh\u00f4ng \u1ed5n \u0111\u1ecbnh. N\u0103m 2009, tr\u00ean \u0111\u1ecba b\u00e0n huy\u1ec7n di\u1ec7n t\u00edch tr\u1ed3ng khoai m\u1ee1 ch\u1ec9 c\u00f2n t\u1eadp trung t\u1ea1i x\u00e3 Minh S\u01a1n nh\u01b0ng di\u1ec7n t\u00edch ch\u1ec9 kho\u1ea3ng 7-10ha v\u00e0 ch\u1ee7 y\u1ebfu ch\u1ec9 c\u00f2n tr\u1ed3ng gi\u1ed1ng khoai m\u1ee1 Tr\u1ee5i tr\u1eafng. Gi\u1ed1ng khoai m\u1ee1 Tr\u1ee5i tr\u1eafng c\u00f3 m\u1ed9t s\u1ed1 \u01b0u \u0111i\u1ec3m n\u1ed5i tr\u1ed9i so v\u1edbi c\u00e1c gi\u1ed1ng \u0111\u1ecba ph\u01b0\u01a1ng kh\u00e1c, c\u00f3 d\u1ea1ng c\u1ee7 h\u00ecnh tr\u1ee5 ng\u1eafn, \u00edt ph\u00e2n nh\u00e1nh, b\u1ec1 m\u1eb7t c\u1ee7 nh\u1eb5n v\u00e0 c\u00f3 \u00edt r\u1ec5 tr\u00ean c\u1ee7, th\u1ecbt c\u1ee7 m\u00e0u tr\u1eafng, ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t r\u1ea5t ph\u00f9 h\u1ee3p cho \u0103n n\u1ea5u v\u00e0 ch\u1ebf bi\u1ebfn c\u00f4ng nghi\u1ec7p. Gi\u1ed1ng c\u00f3 ti\u1ec1m n\u0103ng n\u0103ng su\u1ea5t cao, \u1ed5n \u0111\u1ecbnh. Theo k\u1ebft qu\u1ea3 \u0111i\u1ec1u tra c\u1ee7a Trung t\u00e2m T\u00e0i nguy\u00ean th\u1ef1c v\u1eadt n\u0103m 2010,\u00a0 n\u0103ng su\u1ea5t c\u1ee7 c\u1ee7a khoai m\u1ee1 Tr\u1ee5i tr\u1eafng tr\u01b0\u1edbc nh\u1eefng n\u0103m 2006\u00a0 r\u1ea5t cao, \u0111\u1ea1t tr\u00ean 30 t\u1ea5n\/ha,\u00a0 hi\u1ec7n nay ch\u1ec9 c\u00f2n d\u01b0\u1edbi 25 t\u1ea5n\/ha. Ch\u00ednh v\u00ec v\u1eady, vi\u1ec7c nghi\u00ean c\u1ee9u m\u1ed9t s\u1ed1 bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt canh t\u00e1c (th\u1eddi v\u1ee5, m\u1eadt \u0111\u1ed9, li\u1ec1u l\u01b0\u1ee3ng ph\u00e2n b\u00f3n, l\u00e0m gi\u00e0n) tr\u00ean gi\u1ed1ng khoai m\u1ee1 Tr\u1ee5i tr\u1eafng t\u1ea1i huy\u1ec7n H\u1eefu L\u0169ng, nh\u1eb1m m\u1ee5c \u0111\u00edch g\u00f3p ph\u1ea7n n\u00e2ng cao n\u0103ng su\u1ea5t, mang l\u1ea1i hi\u1ec7u qu\u1ea3 kinh t\u1ebf cao h\u01a1n cho ng\u01b0\u1eddi n\u00f4ng d\u00e2n l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft.<\/p>\n<p style=\"text-align: justify;\">T\u1eeb k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u, c\u00f3 th\u1ec3 k\u1ebft lu\u1eadn:\u00a0 \u0110\u1ec3 n\u00e2ng cao n\u0103ng su\u1ea5t c\u1ee7 c\u1ee7a gi\u1ed1ng khoai m\u1ee1 Tr\u1ee5i tr\u1eafng t\u1ea1i H\u1eefu L\u0169ng, L\u1ea1ng S\u01a1n, trong s\u1ea3n xu\u1ea5t n\u00ean \u00e1p d\u1ee5ng m\u1ed9t s\u1ed1 k\u1ef9 thu\u1eadt: Tr\u1ed3ng v\u00e0o th\u1eddi v\u1ee5 t\u1eeb 20\/2- 05\/03;\u00a0 M\u1eadt \u0111\u1ed9 tr\u1ed3ng ph\u00f9 h\u1ee3p nh\u1ea5t l\u00e0 4 kh\u00f3m\/m<sup>2<\/sup>; L\u01b0\u1ee3ng ph\u00e2n b\u00f3n ph\u00f9 h\u1ee3p cho 1ha l\u00e0: ph\u00e2n chu\u1ed3ng 20 t\u1ea5n + ph\u00e2n h\u00f3a h\u1ecdc l\u01b0\u1ee3ng 120N+110P<sub>2<\/sub>O<sub>5<\/sub>+ 110K<sub>2<\/sub>O.<\/p>\n<p style=\"text-align: justify;\">Tr\u1ed3ng khoai m\u1ee1 ph\u1ee7 b\u1eb1ng r\u01a1m v\u00e0 c\u00f3 l\u00e0m gi\u00e0n cho hi\u1ec7u qu\u1ea3 kinh t\u1ebf cao h\u01a1n so v\u1edbi kh\u00f4ng l\u00e0m gi\u00e0n t\u1eeb 14,595 tri\u1ec7u \u0111\u1ebfn 39,549 tri\u1ec7u \u0111\u1ed3ng\/ha.<\/p>\n<p style=\"text-align: justify;\">Xem b\u00e1o c\u00e1o chi ti\u1ebft <a href=\"https:\/\/prc.maiatech.com.vn\/UserFiles\/File\/Bao%20cao%20khoa%20hoc\/Ket%20qua%20NC%20bien%20phap%20ky%20thuat%20nang%20cao%20NS%20khoai%20mo%20Trui%20Trang.pdf\">t\u1ea1i \u0111\u00e2y<\/a><\/p>\n<\/td>\n<\/tr>\n<tr style=\"text-align: justify;\">\n<td style=\"text-align: right;\" colspan=\"2\">L\u00ea V\u0103n T\u00fa &amp; CS<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Khoai m\u1ee1 (Dioscorea alata L.) v\u1eeba l\u00e0 c\u00e2y l\u01b0\u01a1ng th\u1ef1c, v\u1eeba l\u00e0 c\u00e2y th\u1ef1c ph\u1ea9m. C\u1ee7 khoai m\u1ee1 c\u00f3<\/p>\n","protected":false},"author":4,"featured_media":1142,"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\/688"}],"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=688"}],"version-history":[{"count":2,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/688\/revisions"}],"predecessor-version":[{"id":1143,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/688\/revisions\/1143"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/media\/1142"}],"wp:attachment":[{"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=688"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=688"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=688"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}