{"id":458,"date":"2017-02-28T14:13:41","date_gmt":"2017-02-28T07:13:41","guid":{"rendered":"http:\/\/demo.prc.maiatech.com.vn\/?p=458"},"modified":"2017-02-28T14:13:41","modified_gmt":"2017-02-28T07:13:41","slug":"quy-trinh-ky-thuat-trong-giong-co-stylosanthes-cho-vung-dong-bang-bac-bo","status":"publish","type":"post","link":"https:\/\/prc.org.vn\/?p=458","title":{"rendered":"Quy tr\u00ecnh k\u1ef9 thu\u1eadt tr\u1ed3ng gi\u1ed1ng c\u1ecf Stylosanthes cho v\u00f9ng \u0111\u1ed3ng b\u1eb1ng B\u1eafc B\u1ed9"},"content":{"rendered":"\n\n\n\n
\n

1. Th\u1eddi v\u1ee5 gieo tr\u1ed3ng
\n<\/strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 T\u1ea1i v\u00f9ng \u0111\u1ed3ng b\u1eb1ng B\u1eafc B\u1ed9, th\u1eddi v\u1ee5 gieo tr\u1ed3ng t\u1ed1t nh\u1ea5t t\u1eeb th\u00e1ng 3 \u0111\u1ebfn th\u00e1ng 6. N\u1ebfu tr\u1ed3ng b\u1eb1ng c\u00e0nh (hom) th\u00ec n\u00ean tr\u1ed3ng v\u00e0o c\u00e1c th\u00e1ng m\u00f9a m\u01b0a.
\n2. Chu\u1ea9n b\u1ecb \u0111\u1ea5t<\/strong><\/span><\/p>\n

<\/div>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u0110\u1ea5t c\u1ea7n s\u1ea1ch c\u1ecf d\u1ea1i, n\u01a1i \u0111\u1ea5t th\u1ea5p c\u1ea7n l\u00ean lu\u1ed1ng \u0111\u1ec3 d\u1ec5 d\u00e0ng tho\u00e1t n\u01b0\u1edbc. \u0110\u1ea5t c\u1ea7n \u0111\u01b0\u1ee3c c\u00e0y s\u00e2u 17-25 cm, b\u1eeba k\u1ef9 2-3 l\u1ea7n b\u1ea3o \u0111\u1ea3m \u0111\u1ea5t t\u01a1i nh\u1ecf.
\nR\u1ea1ch h\u00e0ng s\u00e2u kho\u1ea3ng 15cm (n\u1ebfu tr\u1ed3ng b\u1eb1ng c\u00e0nh gi\u00e2m), kho\u1ea3ng 10cm (n\u1ebfu gieo b\u1eb1ng h\u1ea1t), h\u00e0ng c\u00e1ch h\u00e0ng 45-50cm h\u01b0\u1edbng \u0111\u00f4ng t\u00e2y.
\n3. B\u00f3n ph\u00e2n
\n<\/strong>L\u01b0\u1ee3ng ph\u00e2n b\u00f3n:\u00a0<\/strong>
\n<\/em>– Ph\u00e2n h\u1eefu c\u01a1 hoai m\u1ee5c: 15-20 (t\u1ea5n\/ha\/n\u0103m)
\n– Supe l\u00e2n: 500-750 (kg\/ha\/n\u0103m)
\n– Kaliclorua: 250-300 (kg\/ha\/n\u0103m)
\n– Ph\u00e2n \u0111\u1ea1m Ur\u00ea th\u1eddi k\u1ef3 c\u00e2y con: 50-70 (kg\/ha\/n\u0103m)
\n– V\u00f4i b\u1ed9t:\u00a0+ \u0111\u1ed1i v\u1edbi \u0111\u1ea5t c\u00f3 pH<5,\u00a0\u00a01.5 -2.0\u00a0(t\u1ea5n\/ha)
\n<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 +\u00a0\u0111\u1ed1i v\u1edbi \u0111\u1ea5t c\u00f3 pH = 5-5.5,\u00a01.0-1.5 (t\u1ea5n\/ha)
\nC\u00e1ch b\u00f3n:
\n<\/em>– B\u00f3n l\u00f3t: to\u00e0n b\u1ed9 ph\u00e2n h\u1eefu c\u01a1 v\u00e0 ph\u00e2n Supe l\u00e2n + 2\/3 Kaliclorua.
\n– S\u1ed1 l\u01b0\u1ee3ng ph\u00e2n \u0111\u1ea1m \u0111\u01b0\u1ee3c b\u00f3n th\u00fac 2 l\u1ea7n khi c\u00e2y con c\u00f3 \u0111\u1ed9 cao 10cm (sau khi gieo 20 ng\u00e0y) v\u00e0 l\u1ea7n 2 khi c\u00e2y con cao 20 cm (sau khi gieo 30-35 ng\u00e0y).
\n– V\u00f4i \u0111\u01b0\u1ee3c b\u00f3n r\u1ea3i tr\u00e0n lan khi b\u1eeba l\u1ea7n cu\u1ed1i.
\n4. K\u1ef9 thu\u1eadt tr\u1ed3ng c\u1ecf
\n<\/strong>– L\u01b0\u1ee3ng h\u1ea1t gi\u1ed1ng:
\n+ Gieo h\u1ea1t tr\u1ef1c ti\u1ebfp: 6-8 kg\/ha.
\n+ Tr\u1ed3ng b\u1eb1ng hom gi\u1ed1ng: 2,5-3,5 t\u1ea5n\/ha
\n– X\u1eed l\u00fd h\u1ea1t tr\u01b0\u1edbc khi gieo: ng\u00e2m h\u1ea1t trong n\u01b0\u1edbc n\u00f3ng 80-85oC trong 5 ph\u00fat, v\u1edbt ra \u0111\u1ec3 r\u00e1o n\u01b0\u1edbc r\u1ed3i gieo.<\/span><\/p>\n

\n

– Gieo h\u1ea1t tr\u1ef1c ti\u1ebfp:<\/p>\n<\/div>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 H\u1ea1t c\u1ecf r\u1ea3i \u0111\u1ec1u theo h\u00e0ng, l\u1ea5p m\u1ed9t l\u1edbp \u0111\u1ea5t m\u1ecfng 1-2cm. N\u00ean tr\u1ed9n th\u00eam tro b\u1ebfp ho\u1eb7c \u0111\u1ea5t b\u1ed9t v\u00e0o h\u1ea1t khi gieo cho d\u1ec5 v\u1eeba tr\u00e1nh ki\u1ebfn, m\u1ed1i tha h\u1ea1t.<\/span><\/div>\n

Khi gieo xong c\u00f3 th\u1ec3 ph\u1ee7 tr\u00ean m\u1eb7t r\u00e3nh m\u1ed9t l\u1edbp m\u00f9n r\u00e1c nh\u1eb9 \u0111\u1ec1 ph\u00f2ng m\u01b0a to ho\u1eb7c t\u01b0\u1edbi m\u1ea1nh l\u00e0m h\u1ea1t b\u1ecb v\u00f9i l\u1ea5p s\u00e2u kh\u00f3 n\u1ea3y m\u1ea7m (H\u00ecnh 2).<\/p>\n

Trong \u0111i\u1ec1u ki\u1ec7n tr\u1ed3ng th\u00e2m canh c\u00f3 \u0111\u1ea7u t\u01b0, khi gieo xong n\u00ean ph\u1ee7 m\u1ed9t l\u1edbp nilon tr\u00ean m\u1eb7t lu\u1ed1ng, d\u00f9ng dao k\u00e9o r\u1ea1ch ph\u1ea7n r\u00e3nh h\u1ea1t \u0111\u1ec3 c\u00e2y con m\u1ecdc l\u00ean. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y gi\u1ea3m r\u1ea5t nhi\u1ec1u c\u00f4ng l\u00e0m c\u1ecf v\u00e0 n\u01b0\u1edbc t\u01b0\u1edbi trong th\u1eddi k\u1ef3 c\u00e2y con.<\/span><\/p>\n

– Tr\u1ed3ng b\u1eb1ng hom gi\u1ed1ng: ch\u1ecdn th\u1ea3m c\u1ecf s\u1ea1ch c\u1ecf d\u1ea1i, kh\u00f4ng b\u1ecb s\u00e2u b\u1ec7nh c\u1eaft c\u00e0nh b\u00e1nh t\u1ebb d\u00e0i 25-30 cm. T\u1ed1t nh\u1ea5t tr\u1ed3ng trong \u0111i\u1ec1u ki\u1ec7n tr\u1eddi c\u00f3 m\u01b0a nh\u1ecf \u0111\u1ea5t \u1ea9m v\u00e0 tr\u1eddi r\u00e2m m\u00e1t kh\u00f4ng n\u1eafng (H\u00ecnh 3).<\/p>\n

Ch\u0103m s\u00f3c c\u1ecf<\/em>
\nSau khi tr\u1ed3ng 15-20 ng\u00e0y c\u1ea7n ki\u1ec3m tra \u0111\u1ed9 n\u1ea3y m\u1ea7m c\u1ee7a h\u1ea1t ho\u1eb7c th\u00e2n gi\u1ed1ng, tr\u1ed3ng d\u1eb7m ngay l\u1ea1i nh\u1eefng n\u01a1i h\u1ea1t kh\u00f4ng m\u1ecdc ho\u1eb7c c\u00e2y ch\u1ebft v\u00e0 ti\u1ebfn h\u00e0nh l\u00e0m c\u1ecf d\u1ea1i ngay. \u0110\u1ed1i v\u1edbi th\u1ea3m c\u1ecf gieo h\u1ea1t, th\u1eddi gian n\u00e0y ch\u1ec9 c\u1ea7n l\u00e0m c\u1ecf ph\u1ea7n kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c h\u00e0ng \u0111\u1ec3 c\u00e2y con kh\u00f4ng b\u1ecb che l\u1ea5p trong \u0111\u00e1m c\u1ecf d\u1ea1i, v\u01b0\u01a1n \u0111\u01b0\u1ee3c ra ngo\u00e0i \u00e1nh s\u00e1ng \u0111\u1ec3 quang h\u1ee3p,\u00a0sinh tr\u01b0\u1edfng v\u00e0 c\u1ecf d\u1ea1i kh\u00f4ng c\u1ea1nh tranh dinh d\u01b0\u1ee1ng khi c\u00e2y con r\u1ea5t b\u00e9. Ch\u01b0a nh\u1ed5 c\u1ecf trong l\u00f2ng r\u00e3nh c\u00f3 c\u00e2y con \u0111ang m\u1ecdc trong th\u1eddi k\u1ef3 n\u00e0y v\u00ec khi nh\u1ed5 r\u1ec5 c\u1ecf d\u1ea1i s\u1ebd k\u00e9o lu\u00f4n c\u1ea3 c\u00e2y con. T\u1eeb khi gieo \u0111\u1ebfn khi b\u1ee5i c\u1ecf kh\u00e9p t\u00e1n c\u1ea7n l\u00e0m c\u1ecf \u00edt nh\u1ea5t l\u00e0 3 l\u1ea7n.\u00a0L\u01b0u \u00fd,\u00a0\u0111\u00e2y l\u00e0 giai \u0111o\u1ea1n quy\u1ebft \u0111\u1ecbnh s\u1ef1 th\u00e0nh c\u00f4ng c\u1ee7a th\u1ea3m c\u1ecf. N\u1ebfu kh\u00f4ng l\u00e0m c\u1ecf trong th\u1eddi k\u1ef3 c\u00e2y con giai \u0111o\u1ea1n 2-3 th\u00e1ng \u0111\u1ea7u l\u00e0 th\u1ea5t b\u1ea1i ho\u00e0n to\u00e0n trong vi\u1ec7c thi\u1ebft l\u1eadp th\u1ea3m c\u1ecf Stylo.<\/p>\n

C\u1ea7n \u0111\u00e1nh t\u1ec9a n\u01a1i c\u00e2y m\u1ecdc d\u00e0y ra nh\u1eefng n\u01a1i m\u1ea5t kho\u1ea3ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1eadt \u0111\u1ed9, tr\u1ed3ng d\u1eb7m khi c\u1ecf cao kho\u1ea3ng 15cm.<\/span>
\n\u00a0 \u00a0C\u1ea7n t\u01b0\u1edbi n\u01b0\u1edbc cho th\u1ea3m c\u00e2y con. C\u1ecf Stylo c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu h\u1ea1n t\u1ed1t nh\u01b0ng v\u1eabn c\u1ea7n \u0111\u1ee7 l\u01b0\u1ee3ng n\u01b0\u1edbc t\u01b0\u1edbi trong su\u1ed1t giai \u0111o\u1ea1n n\u1eafng k\u00e9o d\u00e0i v\u00e0 m\u00f9a kh\u00f4. T\u01b0\u1edbi n\u01b0\u1edbc s\u1ebd l\u00e0m cho n\u0103ng su\u1ea5t xanh t\u0103ng t\u1eeb 15-25%.\u00a0<\/span>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Sau m\u1ed7i l\u1ee9a c\u1eaft c\u1ea7n l\u00e0m s\u1ea1ch c\u1ecf d\u1ea1i v\u00e0 x\u1edbi \u0111\u1ea5t t\u01a1i x\u1ed1p. C\u1ecf Stylo c\u00f3 kh\u1ea3 n\u0103ng c\u1ed1 \u0111\u1ecbnh \u0111\u1ea1m tr\u00ean n\u1ec1n \u0111\u1ea5t trung t\u00ednh v\u00e0 d\u1ec5 tho\u00e1t n\u01b0\u1edbc. Nh\u01b0ng tr\u00ean n\u1ec1n \u0111\u1ea5t chua v\u00e0 th\u1ea5p kh\u1ea3 n\u0103ng c\u1ed1 \u0111\u1ecbnh \u0111\u1ea1m r\u1ea5t k\u00e9m n\u00ean sau m\u1ed7i l\u1ee9a thu ho\u1ea1ch c\u1ea7n b\u00f3n th\u00fac 1 l\u01b0\u1ee3ng ph\u00e2n \u0111\u1ea1m t\u1eeb 20-40kg\/ha cho c\u1ecf sinh tr\u01b0\u1edfng nhanh khi ph\u00e1t tri\u1ec3n nh\u00e1nh.<\/span>
\n5. K\u1ef9 thu\u1eadt thu ho\u1ea1ch v\u00e0 s\u1eed d\u1ee5ng<\/strong><\/span>
\nK\u1ef9 thu\u1eadt thu ho\u1ea1ch c\u1ecf<\/em><\/span>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Thu c\u1eaft ch\u1ea5t xanh l\u1ee9a \u0111\u1ea7u khi c\u1ecf tr\u1ed3ng \u0111\u01b0\u1ee3c 3-4 th\u00e1ng, khi th\u1ea3m c\u1ecf \u0111\u00e3 ph\u1ee7 k\u00edn \u0111\u1ea5t v\u00e0 \u0111\u1ed9 cao th\u1ea3m 60-70cm. L\u1ee9a t\u00e1i sinh thu ho\u1ea1ch khi \u0111\u1ed9 cao th\u1ea3m 50-60 cm (kh\u00f4ng k\u1ec3 ph\u1ea7n g\u1ed1c c\u1eaft ch\u1eeba l\u1ea1i) v\u00e0 \u0111\u1ed9 cao 35-40cm cho th\u1ea3m c\u1ecf tr\u1ed3ng \u0111\u1ec3 ch\u0103n th\u1ea3. \u0110\u1ed9 cao g\u1ed1c c\u1ecf ch\u1eeba l\u1ea1i khi thu ho\u1ea1ch kho\u1ea3ng 20-25 cm. C\u00e1c l\u1ee9a t\u00e1i sinh c\u1eaft \u0111\u1ec3 g\u1ed1c cao h\u01a1n l\u1ee9a tr\u01b0\u1edbc 5-6 cm.<\/span>
\n
\nH\u01b0\u1edbng s\u1eed\u00a0d\u1ee5ng:<\/em><\/span>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 C\u1ecf Stylo \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m th\u1ee9c \u0103n t\u01b0\u01a1i cho gia s\u00fac (cho \u0103n\u00a0t\u1ea1i chu\u1ed3ng ho\u1eb7c l\u00e0m b\u00e3i ch\u0103n th\u1ea3), s\u1eed d\u1ee5ng l\u00e0m th\u1ee9c \u0103n b\u1ed5 sung v\u1edbi t\u1ef7 l\u1ec7: 25-30% trong kh\u1ed1i l\u01b0\u1ee3ng th\u1ee9c \u0103n th\u00f4 xanh gia s\u00fac \u0103n trong m\u1ed9t ng\u00e0y.\u00a0<\/span>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Ngo\u00e0i ra, c\u1ecf Stylo c\u00f2n \u0111\u01b0\u1ee3c ch\u1ebf bi\u1ebfn th\u00e0nh b\u1ed9t c\u1ecf cho gia c\u1ea7m ho\u1eb7c c\u1ecf kh\u00f4 d\u1ef1 tr\u1eef nu\u00f4i gia s\u00fac trong m\u00f9a \u0111\u00f4ng.\u00a0<\/span>
\n6. Ph\u01b0\u01a1ng th\u1ee9c tr\u1ed3ng<\/strong><\/span>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Tr\u1ed3ng thu\u1ea7n, th\u00e2m canh thu c\u1eaft ch\u1eaft xanh l\u00e0 t\u1ed1t nh\u1ea5t, tr\u1ed3ng xen canh v\u1edbi c\u1ecf ho\u00e0 th\u1ea3o theo c\u00e1c b\u0103ng l\u1edbn 5-7 m \u0111\u1ec3 lu\u00e2n canh c\u00e1c gi\u1ed1ng c\u1ecf. Tr\u1ed3ng c\u1ea3i t\u1ea1o \u0111\u1ea5t, tr\u1ed3ng xen trong th\u1ea3m ch\u00e8, tr\u1ed3ng tr\u00ean \u0111\u1ea5t t\u1eadn d\u1ee5ng…\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\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\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em><\/strong><\/span><\/td>\n<\/tr>\n

TS. Nguy\u1ec5n V\u0103n Quang<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

1. Th\u1eddi v\u1ee5 gieo tr\u1ed3ng \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 T\u1ea1i v\u00f9ng \u0111\u1ed3ng b\u1eb1ng B\u1eafc B\u1ed9, th\u1eddi v\u1ee5 gieo tr\u1ed3ng t\u1ed1t nh\u1ea5t t\u1eeb th\u00e1ng<\/p>\n","protected":false},"author":4,"featured_media":0,"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\/458"}],"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=458"}],"version-history":[{"count":1,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/458\/revisions"}],"predecessor-version":[{"id":459,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/458\/revisions\/459"}],"wp:attachment":[{"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}