{"id":505,"date":"2017-02-28T15:38:30","date_gmt":"2017-02-28T08:38:30","guid":{"rendered":"http:\/\/demo.prc.maiatech.com.vn\/?p=505"},"modified":"2017-02-28T15:39:25","modified_gmt":"2017-02-28T08:39:25","slug":"quy-trinh-ky-thuat-trong-nhom-giong-co-voi-penisetum-purpureum","status":"publish","type":"post","link":"https:\/\/prc.org.vn\/?p=505","title":{"rendered":"Quy tr\u00ecnh k\u1ef9 thu\u1eadt tr\u1ed3ng nh\u00f3m gi\u1ed1ng c\u1ecf Voi (Penisetum Purpureum)"},"content":{"rendered":"\n\n\n
Th\u1eddi v\u1ee5 tr\u1ed3ng:<\/strong> Th\u00edch h\u1ee3p nh\u1ea5t l\u00e0 t\u1eeb th\u00e1ng 2 \u0111\u1ebfn th\u00e1ng 5, c\u00f3 th\u1ec3 tr\u1ed3ng \u0111\u1ebfn th\u00e1ng 8<\/p>\n

Chu\u1ea9n b\u1ecb \u0111\u1ea5t<\/strong>
\n\u0110\u1ea5t c\u1ea7n c\u00e0y s\u00e2u \u0111\u1ed9 20-25cm, b\u1eeba v\u00e0 c\u00e0y 2 l\u1ea7n l\u00e0m t\u01a1i \u0111\u1ea5t. L\u00e0m s\u1ea1ch c\u1ecf d\u1ea1i v\u00e0 san ph\u1eb3ng m\u1eb7t \u0111\u1ea5t tr\u1ed3ng.
\nR\u1ea1ch h\u00e0ng s\u00e2u 20-25cm theo h\u01b0\u1edbng \u0110\u00f4ng-T\u00e2y, kho\u1ea3ng c\u00e1ch h\u00e0ng 50-60cm.
\nL\u01b0\u1ee3ng ph\u00e2n b\u00f3n cho c\u00e1c gi\u1ed1ng c\u1ecf Voi:<\/p>\n

\"\"<\/p>\n

To\u00e0n b\u1ed9 ph\u00e2n h\u1eefu c\u01a1 hoai m\u1ee5c + Ph\u00e2n l\u00e2n + 2\/3 ph\u00e2n Kali b\u00f3n l\u00f3t v\u00e0o long r\u00e3nh tr\u01b0\u1edbc khi tr\u1ed3ng. V\u00f4i b\u1ed9t (\u0111\u1ea5t chua pH<5) b\u00f3n 1 t\u1ea5n\/ha, r\u1ea3i \u0111\u1ec1u tr\u01b0\u1edbc khi r\u1ea1ch r\u00e3nh. Ph\u00e2n \u0111\u1ea1m chia \u0111\u00ea\u00f9 b\u00f3n th\u00fac l\u1ee9a \u0111\u1ea7u v\u00e0 sau c\u00e1c l\u1ee9a thu ho\u1ea1ch (6-7 l\u1ee9a\/n\u0103m)
\nK\u1ef9 thu\u1eadt tr\u1ed3ng<\/strong><\/p>\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
H\u00ecnh 1. K\u1ef9 thu\u1eadt tr\u1ed3ng c\u1ecf Voi<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n
\u00a0<\/td>\n\u00a0<\/td>\n<\/tr>\n
H\u00ecnh 2<\/td>\nH\u00ecnh 3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

S\u1eed d\u1ee5ng lo\u1ea1i th\u00e2n gi\u1ed1ng c\u00f3 \u0111\u1ed9 tu\u1ed5i 80-100 ng\u00e0y, c\u1eaft v\u00e1t th\u00e0nh hom c\u00f3 \u0111\u1ed9 d\u00e0i 40-50cm\/hom. M\u1ed7i hom c\u00f3 3-5 m\u1eaft m\u1ea7m (H\u00ecnh 2). S\u1eed d\u1ee5ng 5-6 t\u1ea5n hom gi\u1ed1ng\/ha.
\nHom gi\u1ed1ng \u0111\u01b0\u1ee3c \u0111\u1eb7t theo l\u00f2ng r\u00e3nh t\u1ea1i \u0111\u1ed9 s\u00e2u \u00edt nh\u1ea5t l\u00e0 15 cm so v\u1edbi b\u1ec1 m\u1eb7t \u0111\u1ea5t v\u00e0 \u0111\u1ea7u hom sau \u0111\u1eb7t k\u1ebf ti\u1ebfp v\u00e0o \u0111u\u00f4i c\u1ee7a hom tr\u01b0\u1edbc (H\u00ecnh 3).
\nSau \u0111\u00f3 l\u1ea5p k\u00edn hom gi\u1ed1ng b\u1eb1ng m\u1ed9t l\u1edbp \u0111\u1ea5t d\u00e0y kho\u1ea3ng 7-8 cm, san ph\u1eb3ng b\u1ec1 m\u1eb7t r\u00e3nh tr\u1ed3ng v\u00e0 d\u1ea7n l\u1ea5p \u0111\u1ea7y r\u00e3nh khi c\u00e2y sinh tr\u01b0\u1edfng. (h\u00ecnh 4)<\/p>\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
H\u00ecnh 4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Tr\u1ed3ng th\u00e2m canh: \u0110\u1ea5t t\u1ed1t tr\u1ed3ng h\u00e0ng c\u00e1ch h\u00e0ng 70-80 cm v\u00e0 50-60 cm cho \u0111\u1ea5t x\u1ea5u \u0111\u1ec3 t\u1eadn d\u1ee5ng n\u0103ng su\u1ea5t t\u1ed1i \u0111a
\nCh\u0103m s\u00f3c c\u1ecf<\/strong>
\nSau khi tr\u1ed3ng 10-15 ng\u00e0y ph\u1ea3i ki\u1ec3m tra t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m (s\u1ed1 m\u1ea7m nh\u00f4 l\u00ean kh\u1ecfi m\u1eb7t \u0111\u1ea5t) \u0111\u1ec3 k\u1ecbp th\u1eddi tr\u1ed3ng r\u1eb7m l\u1ea1i nh\u1eefng di\u1ec7n t\u00edch c\u1ecf kh\u00f4ng m\u1ecdc ho\u1eb7c b\u1ecb ch\u1ebft. D\u00f9ng cu\u1ed1c l\u00e0m c\u1ecf, ph\u00e1 v\u00e1ng (tr\u00e1nh kh\u00f4ng va ch\u1ea1m v\u00e0o th\u00e2n hom gi\u1ed1ng \u0111\u00e3 tr\u1ed3ng) (H\u00ecnh 5)<\/p>\n\n\n\n\n
\u00a0<\/td>\n\u00a0<\/td>\n<\/tr>\n
\u00a0H\u00ecnh 5<\/td>\n\u00a0H\u00ecnh 6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

B\u00f3n th\u00fac cho c\u1ecf kho\u1ea3ng 50 kg ph\u00e2n Ur\u00ea\/ha khi c\u1ecf tr\u1ed3ng \u0111\u01b0\u1ee3c 25-30 ng\u00e0y tu\u1ed5i (H\u00ecnh 6). Trong m\u00f9a kh\u00f4 c\u1ecf voi c\u1ea7n \u0111\u01b0\u1ee3c t\u01b0\u1edbi n\u01b0\u1edbc \u0111\u1ec1u \u0111\u1eb7n nh\u01b0 t\u01b0\u01a1i phun 2l\u1ea7n\/tu\u1ea7n, t\u01b0\u1edbi th\u1ea5m (r\u00e3nh) \u00edt nh\u1ea5t 7-10 ng\u00e0y m\u1ed9t l\u1ea7n.<\/p>\n

K\u1ef9 thu\u1eadt thu ho\u1ea1ch v\u00e0 s\u1eed d\u1ee5ng<\/strong>
\nK\u1ef9 thu\u1eadt thu ho\u1ea1ch<\/strong>
\nTh\u1ea3m c\u1ecf thu ho\u1ea1ch l\u1ee9a \u0111\u1ea7u th\u1ea3m t\u1ed1t nh\u1ea5t l\u00e0 \u1edf 70-80 ng\u00e0y tu\u1ed5i (c\u00e2y c\u00f3 th\u00e2n c\u1ee9ng, kh\u00f4ng thu c\u1eaft non l\u1ee9a \u0111\u1ea7u). C\u00e1c l\u1ee9a c\u1eaft t\u00e1i sinh c\u1ea7n thu ho\u1ea1ch khi th\u1ea3m c\u1ecf c\u00f3 \u0111\u1ed9 cao 80-120 cm (35-40 ng\u00e0y) trong m\u00f9a m\u01b0a v\u00e0 55-70 ng\u00e0y trong giai \u0111o\u1ea1n m\u00f9a kh\u00f4
\nThu ho\u1ea1ch l\u1ea7n \u0111\u1ea7u n\u00ean c\u1eaft s\u00e1t m\u1eb7t \u0111\u1ea5t (5 cm) cho c\u00e2y sinh tr\u01b0\u1edfng v\u00e0 \u0111\u1ebb nhi\u1ec1u nh\u00e1nh (H\u00ecnh 7)<\/p>\n\n\n\n\n
\u00a0<\/td>\n\u00a0<\/td>\n<\/tr>\n
\u00a0H\u00ecnh 7<\/td>\n\u00a0H\u00ecnh 8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u00e1c l\u1ee9a c\u1eaft ti\u1ebfp theo \u1edf \u0111\u1ed9 cao c\u1eaft so v\u1edbi m\u1eb7t \u0111\u1ea5t t\u1ed1t nh\u1ea5t l\u00e0 7-10 cm. D\u00f9ng m\u00e1y, li\u1ec1m ho\u1eb7c dao s\u1eafc thu ho\u1ea1ch to\u00e0n b\u1ed9 m\u1ea7m c\u1ecf trong th\u1ea3m \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ef1 sinh tr\u01b0\u1edfng \u0111\u1ed3ng \u0111\u1ec1u cho l\u1ee9a c\u1ecf t\u00e1i sinh. Kh\u00f4ng thu c\u1eaft c\u1ecf \u1edf \u0111\u1ed9 cao nh\u01b0 (H\u00ecnh 8)
\nSau m\u1ed1i l\u1ea7n thu ho\u1ea1ch c\u1ea7n x\u1edbi x\u00e1o l\u00e0m s\u1ea1ch c\u1ecf d\u1ea1i, t\u01b0\u1edbi n\u01b0\u1edbc ngay cho th\u1ea3m c\u1ecf. B\u00f3n th\u00fac ph\u00e2n \u0111\u1ea1m khi c\u1ecf t\u00e1i sinh l\u00e1 m\u1edbi (sau khi thu hoach 10-15 ng\u00e0y).<\/p>\n

S\u1eed d\u1ee5ng cho gia s\u00fac<\/strong>
\nC\u1ecf \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m th\u1ee9c \u0103n t\u01b0\u01a1i h\u00e0ng ng\u00e0y cho gia s\u00fac: b\u00f2 s\u1eefa th\u1ecbt, tr\u00e2u, d\u00ea, l\u1ee3n, c\u00e1 v\u1edbi l\u01b0\u1ee3ng \u0103n t\u1ef1 do (H\u00ecnh 9 & 10)<\/p>\n\n\n\n\n
\u00a0<\/td>\n\u00a0<\/td>\n<\/tr>\n
\u00a0H\u00ecnh 9<\/td>\n\u00a0H\u00ecnh 10<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u0110\u1ed1i v\u1edbi d\u00ea, c\u1eebu, l\u1ee3n c\u1ea7 thu c\u1eaft s\u1edbm h\u01a1n v\u00e0 n\u00ean b\u0103m th\u00e0nh \u0111o\u1ea1n ng\u1eafn 5-7 cm nu\u00f4i c\u00e1c lo\u1ea1i gia s\u00fac tr\u00ean s\u1ebd n\u00e2ng cao \u0111\u01b0\u1ee3c t\u1ef7 l\u1ec7 s\u1eed d\u1ee5ng c\u1ee7a gia s\u00fac
\nC\u1ecf Voi d\u00f9ng l\u00e0m th\u1ee9c \u0103n \u1ee7 chua theo ph\u01b0\u01a1ng ph\u00e1p \u1ee7 c\u00f4ng nghi\u1ec7p (h\u1ed1 l\u1edbn 30-100 t\u1ea5n). C\u1ecf voi gi\u00e0 c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng b\u1eb1ng c\u00e1ch c\u1eaft nh\u1ecf (3-5 cm), ph\u01a1i h\u00e9o \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 \u1ea9m <60%, \u00e9p thu\u1ef7 l\u1ef1c t\u1ea1o b\u00e1nh k\u00edch c\u1ee1 100-150 kg cho v\u00e0o t\u00fai nilon d\u00e0y, k\u00edn, d\u1ef1 tr\u1eef trong kho m\u00e1t (\u0111\u1eady k\u00edn), tr\u00e1nh gia s\u00fac, chu\u1ed9t h\u1ea1i r\u00e1ch t\u00fai ch\u1ee9a. Th\u1ee9c \u0103n \u1ee7 chua theo ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u00f3 th\u1ec3 d\u1ef1 tr\u1eef 5-6 th\u00e1ng.<\/p>\n

C\u00e1c ph\u01b0\u01a1ng th\u1ee9c tr\u1ed3ng <\/strong>
\nTr\u1ed3ng thu\u1ea7n, th\u00e2m canh \u0111\u1ec3 thu c\u1eaft v\u1ec1 nu\u00f4i gia s\u00fac t\u1ea1i chu\u1ed3ng l\u00e0 ph\u01b0\u01a1ng th\u1ee9c t\u1ed1t nh\u1ea5t \u0111\u1ec3 thu\u1eadn l\u1ee3i s\u1eed d\u1ee5ng c\u01a1 gi\u1edbi ho\u00e1 (H\u00ecnh 11). Tr\u1ed3ng xen canh v\u1edbi c\u00e1c gi\u1ed1ng c\u1ecf h\u1ecd \u0111\u1eadu theo h\u00ecnh th\u1ee9c xen theo b\u0103ng v\u1edbi keo d\u1eadu, h\u1ecd \u0111\u1eadu kh\u00e1c v\u1edbi kho\u1ea3ng c\u00e1ch 5-7 m m\u1ed9t b\u0103ng, 2-3 m c\u00e2y h\u1ecd \u0111\u1eadu (H\u00ecnh 12). Tr\u1ed3ng trong v\u01b0\u1eddn t\u1ea1p ho\u1eb7c tr\u1ed3ng theo h\u00e0ng r\u00e0o, d\u1ecdc b\u1edd song, \u0111\u01b0\u1eddng \u0111i l\u1ea1i, \u0111\u1ea5t t\u1eadn d\u1ee5ng n\u01a1i g\u1ea7n ngu\u1ed3n n\u01b0\u1edbc.<\/p>\n\n\n\n\n\n
\u00a0<\/td>\n\u00a0<\/td>\n<\/tr>\n
H\u00ecnh 11<\/td>\nH\u00ecnh 12<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n
TS. Nguy\u1ec5n V\u0103n Quang<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Th\u1eddi v\u1ee5 tr\u1ed3ng: Th\u00edch h\u1ee3p nh\u1ea5t l\u00e0 t\u1eeb th\u00e1ng 2 \u0111\u1ebfn th\u00e1ng 5, c\u00f3 th\u1ec3 tr\u1ed3ng \u0111\u1ebfn th\u00e1ng 8 Chu\u1ea9n<\/p>\n","protected":false},"author":4,"featured_media":507,"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\/505"}],"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=505"}],"version-history":[{"count":1,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/505\/revisions"}],"predecessor-version":[{"id":506,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/505\/revisions\/506"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/media\/507"}],"wp:attachment":[{"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=505"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=505"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}