{"id":441,"date":"2017-02-28T14:03:05","date_gmt":"2017-02-28T07:03:05","guid":{"rendered":"http:\/\/demo.prc.maiatech.com.vn\/?p=441"},"modified":"2017-02-28T14:03:06","modified_gmt":"2017-02-28T07:03:06","slug":"ky-thuat-trong-khoai-lang-rau-klr1-klr3-klr5","status":"publish","type":"post","link":"https:\/\/prc.org.vn\/?p=441","title":{"rendered":"K\u1ef9 thu\u1eadt tr\u1ed3ng khoai lang rau KLR1, KLR3, KLR5"},"content":{"rendered":"\n\n\n\n
\n

1. Th\u1eddi v\u1ee5: <\/strong>
\nC\u00f3 th\u1ec3 tr\u1ed3ng c\u00e1c gi\u1ed1ng khoai lang rau quanh n\u0103m nh\u01b0ng tr\u1ed3ng cho cho n\u0103ng su\u1ea5t cao nh\u1ea5t v\u00e0o v\u1ee5 Xu\u00e2n h\u00e8 (Tr\u1ed3ng th\u00e1ng 2-3) v\u00e0 H\u00e8 thu (tr\u1ed3ng th\u00e1ng 6-7).<\/span><\/p>\n

2.\u00a0 Ch\u1ecdn v\u00e0 chu\u1ea9n b\u1ecb \u0111\u1ea5t tr\u1ed3ng:
\n<\/strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Khoai lang rau c\u00f3 th\u1ec3 tr\u1ed3ng tr\u00ean m\u1ecdi lo\u1ea1i \u0111\u1ea5t trong v\u01b0\u1eddn, ngo\u00e0i \u0111\u1ed3ng, ven b\u1edd m\u01b0\u01a1ng…L\u00e0m \u0111\u1ea5t s\u01a1 b\u1ed9, s\u1ea1ch c\u1ecf r\u1ed3i l\u00ean lu\u1ed1ng r\u1ed9ng 1,2 m-1,5m. Lu\u1ed1ng kh\u00f4ng vun cao nh\u01b0 tr\u1ed3ng khoai lang l\u1ea5y c\u1ee7 m\u00e0 nh\u01b0 lu\u1ed1ng tr\u1ed3ng rau mu\u1ed1ng c\u1ea1n v\u00e0 ph\u1ea3i tho\u00e1t n\u01b0\u1edbc tr\u00e1nh ng\u1eadp \u00fang x\u1ea9y ra khi m\u01b0a to. R\u1ea1ch h\u00e0ng ngang ho\u1eb7c d\u1ecdc lu\u1ed1ng ph\u1ee5 thu\u1ed9c b\u1ec1 m\u1eb7t lu\u1ed1ng. Lu\u1ed1ng r\u1ed9ng r\u1ea1ch ngang, lu\u1ed1ng h\u1eb9p, r\u1ea1ch\u00a0 2 h\u00e0ng d\u1ecdc. \u0110\u1ed9 n\u00f4ng, s\u00e2u ph\u1ee5 thu\u1ed9c c\u00f3 b\u00f3n l\u00f3t hay kh\u00f4ng. N\u1ebfu b\u00f3n l\u00f3t ph\u00e2n h\u1eefu c\u01a1 r\u1ea1ch s\u00e2u h\u01a1n.
\n<\/span><\/p>\n

3. Ch\u1ecdn d\u00e2y khoai lang gi\u1ed1ng v\u00e0 k\u1ef9 thu\u1eadt tr\u1ed3ng:
\n<\/strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Gi\u1ed1ng: \u00a0T\u00f9y thu\u1ed9c \u0111i\u1ec1u ki\u1ec7n n\u01a1i tr\u1ed3ng v\u00e0 c\u0103n c\u1ee9 v\u00e0o \u0111\u1eb7c \u0111i\u1ec3m gi\u1ed1ng \u0111\u00e3 n\u00eau tr\u00ean \u0111\u1ec3 ch\u1ecdn\u00a0 gi\u1ed1ng\u00a0 khoai lang rau ph\u00f9 h\u1ee3p\u00a0 t\u1eeb 3 gi\u1ed1ng KLR1,\u00a0 KLR3, KLR5.
\nCh\u1ecdn d\u00e2y khoai lang: Ch\u1ecdn nh\u1eefng d\u00e2y tr\u01b0\u1edfng th\u00e0nh c\u00f3 ng\u1ecdn kho\u1ebb, kh\u00f4ng b\u1ecb s\u00e2u, b\u1ec7nh. C\u1eaft ng\u1ecdn d\u00e2y khoai lang tr\u1ed3ng c\u00f3 chi\u1ec1u d\u00e0i t\u1eeb 25-30 cm.
\nTr\u1ed3ng:\u00a0 Khoai lang rau tr\u1ed3ng m\u1eadt \u0111\u1ed9 d\u00e0y h\u01a1n khoai lang \u0103n c\u1ee7. M\u1eadt \u0111\u1ed9 c\u00f3 th\u1ec3 l\u00e0 10-15 d\u00e2y\/m2 tu\u1ef3 lo\u1ea1i \u0111\u1ea5t v\u00e0 gi\u1ed1ng. Kho\u1ea3ng c\u00e1ch gi\u1eefa 2 d\u00e2y tr\u1ed3ng tr\u00ean 1 h\u00e0ng l\u00e0 15cm. L\u00fac tr\u1ed3ng n\u1ebfu tr\u1eddi kh\u00f4 n\u00f3ng ph\u1ea3i t\u01b0\u1edbi. M\u00f9a \u0111\u00f4ng tr\u00e1nh tr\u1ed3ng v\u00e0o nh\u1eefng ng\u00e0y c\u00f3 gi\u00f3 b\u1ea5c.<\/span><\/p>\n

4. L\u01b0\u1ee3ng ph\u00e2n v\u00e0 c\u00e1ch b\u00f3n:
\n<\/strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Ph\u00e2n h\u1eefu c\u01a1: L\u01b0\u1ee3ng 8-12 t\u1ea5n\/ha. B\u00f3n l\u00f3t v\u1edbi l\u01b0\u1ee3ng 300-500kg\/ s\u00e0o b\u1eafc b\u1ed9\u00a0\u00a0\u00a0 (360 m2). R\u1ea1ch r\u00e3nh, r\u1ea3i ph\u00e2n \u1ecf d\u01b0\u1edbi r\u1ed3i l\u1ea5p \u0111\u1ea5t l\u00ean tr\u00ean v\u00e0 tr\u1ed3ng d\u00e2y khoai lang. N\u1ebfu kh\u00f4ng c\u00f3 ph\u00e2n h\u1eefu c\u01a1, c\u00f3 th\u1ec3 tr\u1ed3ng tr\u1ef1c ti\u1ebfp m\u00e0 kh\u00f4ng c\u1ea7n b\u00f3n l\u00f3t c\u0169ng \u0111\u01b0\u1ee3c.
\nPh\u00e2n ho\u00e1 h\u1ecdc: L\u01b0\u1ee3ng 80N-50P2O5-60K2O\/ha. B\u00f3n l\u00f3t to\u00e0n b\u1ed9 l\u00e2n v\u00e0 kaly c\u00f9ng ph\u00e2n h\u1eefu c\u01a1. Ph\u00e2n \u0111\u1ea1m \u0111\u1ec3 b\u00f3n th\u00fac. Trong c\u1ea3 qu\u00e1 tr\u00ecnh tr\u1ed3ng b\u00f3n th\u00fac kho\u1ea3ng 4-5 l\u1ea7n v\u1edbi t\u1ed5ng l\u01b0\u1ee3ng ph\u00e2n l\u00e0 5-6kg Ur\u00ea\/ s\u00e0o b\u1eafc b\u1ed9. B\u00f3n th\u00fac l\u1ea7n \u0111\u1ea7u ngay sau khi tr\u1ed3ng t\u1eeb 12 ng\u00e0y \u0111\u1ebfn 15 ng\u00e0y, c\u00f3 th\u1ec3 ho\u00e0 n\u01b0\u1edbc t\u01b0\u1edbi ho\u1eb7c r\u1ea3i nh\u1eb9 v\u00e0o kho\u1ea3ng tr\u1ed1ng gi\u1eefa c\u00e1c g\u1ed1c.
\n<\/span><\/p>\n

5. Ch\u0103m s\u00f3c v\u00e0 thu ho\u1ea1ch ng\u1ecdn l\u00e1:
\n<\/strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Sau khi tr\u1ed3ng 25-30 ng\u00e0y, c\u00f3 th\u1ec3 thu ho\u1ea1ch rau khoai lang l\u1ee9a \u0111\u1ea7u ti\u00ean \u0111\u1ec3 ph\u1ee5c v\u1ee5 rau xanh c\u0169ng nh\u01b0 ch\u0103n nu\u00f4i. Sau \u0111\u00f3 c\u1ee9 7-10 ng\u00e0y c\u1eaft ng\u1ecdn m\u1ed9t l\u1ea7n. C\u1eaft ng\u1ecdn rau d\u00e0i t\u1eeb 20cm-25cm. Thu ho\u1ea1ch trong v\u00f2ng 90-100 ng\u00e0y.
\nC\u1ee9 sau 2 l\u1ea7n c\u1eaft d\u00e2y, l\u00e0m c\u1ecf, x\u1edbi x\u00e1o nh\u1eb9 v\u00e0 b\u00f3n th\u00fac 1 l\u1ea7n \u0111\u1ec3 c\u00e2y sinh tr\u01b0\u1edfng t\u1ed1t v\u00e0 cho n\u0103ng su\u1ea5t ng\u1ecdn l\u00e1 cao. L\u01b0\u1ee3ng ph\u00e2n b\u00f3n\u00a0 cho m\u1ed7i l\u1ea7n b\u00f3n th\u00fac l\u00e0 1-1,2 kg Ur\u00ea\/1s\u00e0o b\u1eafc b\u1ed9.
\nTr\u1ed3ng khoai lang rau th\u00e2m canh( gi\u1ed1ng KLR1), t\u01b0\u1edbi r\u00e3nh \u0111\u1ee7 \u1ea9m v\u00e0o nh\u1eefng ng\u00e0y n\u1eafng n\u00f3ng, trong v\u1ee5 \u0111\u00f4ng.
\nTr\u1ed3ng khoai lang rau kh\u00f4ng phun thu\u1ed1c tr\u1eeb s\u00e2u b\u1ec7nh. Thu ho\u1ea1ch ng\u1ecdn l\u00e1 sau khi b\u00f3n th\u00fac ph\u00e2n \u0111\u1ea1m 10 ng\u00e0y.<\/span><\/p>\n

6. Nh\u00e2n gi\u1ed1ng:
\n<\/strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Th\u01b0\u1eddng sau khi tr\u1ed3ng v\u00e0 thu ho\u1ea1ch ng\u1ecdn l\u00e1 120 ng\u00e0y th\u00ec chu\u1ea9n b\u1ecb \u0111\u1ea5t n\u01a1i kh\u00e1c trong v\u01b0\u1eddn, ru\u1ed9ng \u0111\u1ec3 c\u1eaft d\u00e2y tr\u1ed3ng v\u1ee5 m\u1edbi. Nh\u01b0 v\u1eady s\u1ebd tr\u00e1nh \u0111\u01b0\u1ee3c b\u1ecd h\u00e0 g\u00e2y h\u1ea1i.
\nSau 4-5 v\u1ee5 tr\u1ed3ng n\u00ean d\u00f9ng d\u00e2y gi\u1ed1ng m\u1edbi nh\u00e2n t\u1eeb m\u1ea7m c\u1ee7 \u0111\u1ec3 tr\u00e1nh tho\u00e1i h\u00f3a gi\u1ed1ng. Tr\u1ed3ng l\u1ea5y c\u1ee7 gi\u1ed1ng ch\u1ec9 n\u00ean c\u1eaft ng\u1ecdn l\u00e1 1-2 l\u1ea7n. Sau 120 ng\u00e0y tr\u1ed3ng thu ho\u1ea1ch c\u1ee7. Ch\u1ecdn nh\u1eefng c\u1ee7 \u0111\u00fang gi\u1ed1ng, kh\u00f4ng s\u00e2u th\u1ed1i \u0111\u1ec3 n\u01a1i \u1ea9m m\u1ecdc m\u1ea7m \u0111em gi\u00e2m v\u00e0o \u0111\u1ea5t, khi d\u00e2y khoai d\u00e0i 50m-70 cm c\u1eaft 2 \u0111o\u1ea1n \u0111em tr\u1ed3ng chu k\u1ef3 m\u1edbi.<\/span><\/p>\n

\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin xin li\u00ean h\u1ec7: Trung t\u00e2m T\u00e0i nguy\u00ean th\u1ef1c v\u1eadt, An Kh\u00e1nh,\u00a0 Ho\u00e0i \u0110\u1ee9c, H\u00e0 N\u1ed9i
\n\u0110T: 04.33654965 ; FAX: 04.33650625; Email: huengoc8@yahoo.com<\/a><\/strong><\/em><\/span><\/td>\n<\/tr>\n

Nguy\u1ec5n Th\u1ecb Ng\u1ecdc Hu\u1ec7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

1. Th\u1eddi v\u1ee5: C\u00f3 th\u1ec3 tr\u1ed3ng c\u00e1c gi\u1ed1ng khoai lang rau quanh n\u0103m nh\u01b0ng tr\u1ed3ng cho cho n\u0103ng su\u1ea5t cao<\/p>\n","protected":false},"author":4,"featured_media":442,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[35],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/441"}],"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=441"}],"version-history":[{"count":1,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/441\/revisions"}],"predecessor-version":[{"id":443,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/441\/revisions\/443"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/media\/442"}],"wp:attachment":[{"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=441"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=441"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=441"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}