{"id":13268,"date":"2014-07-24T16:33:03","date_gmt":"2014-07-24T09:33:03","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/?p=13268"},"modified":"2014-07-22T16:36:26","modified_gmt":"2014-07-22T09:36:26","slug":"ky-thuat-trong-re-gung","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/ky-thuat-trong-re-gung\/","title":{"rendered":"K\u1ef9 thu\u1eadt tr\u1ed3ng Re g\u1eebng"},"content":{"rendered":"

RE G\u01af\u0300NG<\/b><\/p>\n

T\u00ean kh\u00e1c: Re b\u1ea7u, re l\u1ee3n, re l\u00e1 t\u00f9<\/p>\n

T\u00ean khoa h\u1ecdc: Cinnamomum bejolghota <\/i>(Buch. Ham.) Sweet <\/i><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Cinnamomum obtusifolium <\/i>(Roxb.) Nees<\/p>\n

H\u1ecd th\u1ef1c v\u1eadt: Long n\u00e3o (Lauraceae)<\/p>\n

(Ngu\u1ed3n ch\u00ednh: Nguy\u1ec5n Th\u1ecb Nhung, 2009)<\/p>\n

1. \u0110\u0103\u0323c \u0111i\u00ea\u0309m hi\u0300nh tha\u0301i<\/b><\/p>\n

C\u00e2y g\u1ed7 l\u1edbn, cao t\u1edbi 30m, \u0111\u01b0\u1eddng k\u00ednh c\u00f3 th\u1ec3 \u0111\u1ea1t 50cm. V\u1ecf ngo\u00e0i m\u00e0u n\u00e2u hay n\u00e2u s\u1eabm, nh\u1eb5n, th\u1ecbt v\u1ecf m\u00e0u n\u00e2u hay v\u00e0ng nh\u1ea1t, gi\u00f2n v\u00e0 c\u00f3 m\u00f9i th\u01a1m. C\u00e0nh non m\u00e0u xanh \u0111\u1eadm, khi gi\u00e0 c\u00f3 m\u00e0u n\u00e2u.<\/p>\n

L\u00e1 \u0111\u01a1n m\u1ecdc c\u00e1ch ho\u1eb7c g\u1ea7n \u0111\u1ed1i, h\u00ecnh m\u0169i m\u00e1c hay tr\u00e1i xoan thu\u00f4n, m\u1eb7t tr\u00ean nh\u1eb5n, m\u1eb7t d\u01b0\u1edbi xanh b\u00f3ng, d\u00e0i 9-30cm, r\u1ed9ng 3,5-9cm, \u0111\u1ec9nh c\u00f3 m\u0169i nh\u1ecdn, g\u1ed1c h\u00ecnh n\u00eam, 2 m\u1eb7t nh\u1eb5n b\u00f3ng, 3 g\u00e2n g\u1ed1c, g\u00e2n b\u00ean k\u00e9o d\u00e0i t\u1edbi \u0111\u1ec9nh. Cu\u1ed1ng d\u00e0i 12-20mm.<\/p>\n

C\u1ee5m hoa chu\u1ef3 \u1edf n\u00e1ch g\u1ed3m nhi\u1ec1u xim, d\u00e0i 20-25cm. Hoa l\u01b0\u1ee1ng t\u00ednh c\u00f3 2 d\u1ea1ng: Hoa gi\u1eefa l\u1edbn h\u01a1n c\u00e1c hoa b\u00ean. Bao hoa c\u00f3 6 m\u1ea3nh, thu\u00f4n, c\u00f3 l\u00f4ng \u1edf 2 m\u1eb7t. Nh\u1ecb \u0111\u1ef1c sinh s\u1ea3n 9, x\u1ebfp 3 v\u00f2ng, nh\u1ecb tho\u00e1i ho\u00e1 3, bao ph\u1ea5n 4 \u00f4. B\u1ea7u h\u00ecnh tr\u1ee9ng, nh\u1eb5n, v\u00f2i d\u00e0i b\u1eb1ng b\u1ea7u. Ra hoa th\u00e1ng 3-5.<\/p>\n

Qu\u1ea3 m\u1ecdng, h\u00ecnh tr\u1ee9ng,d\u00e0i 1cm, g\u1ed1c c\u00f3 bao hoa c\u00f2n l\u1ea1i, m\u00e0u \u0111en. Qu\u1ea3 non m\u00e0u xanh, l\u00fac ch\u00edn v\u1ecf qu\u1ea3 chuy\u1ec3n m\u00e0u xanh \u0111en, th\u1ecbt qu\u1ea3 m\u00e0u t\u00edm nh\u1ea1t, c\u00f3 1 h\u1ea1t m\u00e0u n\u00e2u nh\u1ea1t, ch\u00edn v\u00e0o th\u00e1ng 2-3.<\/p>\n

H\u1ea1t c\u00f3 d\u1ea7u, n\u1ebfu g\u1eb7p \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9,\u00a0 \u1ea9m\u00a0 \u0111\u1ed9,\u00a0 \u00e1nh s\u00e1ng b\u1ea5t l\u1ee3i, h\u1ea1t d\u1ec5 b\u1ecb m\u1ea5t s\u1ee9c n\u1ea3y m\u1ea7m nhanh ch\u00f3ng.<\/p>\n

\"Re<\/a><\/p>\n

2. \u0110\u0103\u0323c ti\u0301nh sinh tha\u0301i<\/b><\/p>\n

Ph\u00e2n b\u1ed1 \u1edf L\u00e0o, Trung Qu\u1ed1c,…; \u1edf Vi\u1ec7t Nam g\u1eb7p Re g\u1eebng m\u1ecdc trong c\u00e1c r\u1eebng th\u1ee9 sinh \u1edf Cao B\u1eb1ng, L\u1ea1ng S\u01a1n, Ph\u00fa Th\u1ecd, H\u00e0 Nam, Ninh B\u00ecnh, Ho\u00e0 B\u00ecnh, Th\u00e1i Nguy\u00ean, Tuy\u00ean Quang, Y\u00ean B\u00e1i, Ngh\u1ec7 An, H\u00e0 T\u0129nh \u0111\u1ebfn Gia Lai, Kon Tum, \u0110\u1eafc L\u1eafc, \u0110\u1ed3ng Nai.<\/p>\n

Re g\u1eebng \u01b0a \u0111\u1ea5t th\u1ecbt pha c\u00e1t, t\u1ea7ng s\u00e2u, tho\u00e1t n\u01b0\u1edbc, \u1edf n\u01a1i c\u00f3 l\u01b0\u1ee3ng m\u01b0a 800-2500 mm\/n\u0103m, nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n 20-25o<\/sup>C, \u0111\u1ed9 cao 50-1500m so v\u1edbi m\u1ef1c n\u01b0\u1edbc bi\u1ec3n.<\/p>\n

C\u00e2y non \u01b0a b\u00f3ng nh\u1eb9, l\u1edbn l\u00ean \u01b0a s\u00e1ng. T\u00e1i sinh h\u1ea1t t\u1ed1t v\u00e0 c\u00f3 th\u1ec3 t\u00e1i sinh ch\u1ed3i.<\/p>\n

3. Gi\u00f4\u0301ng va\u0300 ta\u0323o c\u00e2y con<\/b><\/p>\n

C\u00e2y 9-10 tu\u1ed5i b\u1eaft \u0111\u1ea7u ra hoa, qu\u1ea3 nh\u01b0ng ch\u1ec9 l\u1ea5y gi\u1ed1ng \u1edf nh\u1eefng c\u00e2y \u0111\u00e3 ra qu\u1ea3 3 n\u0103m tr\u1edf l\u00ean. H\u00e1i qu\u1ea3 c\u00f3 m\u00e0u xanh \u0111en, \u1ee7 1-2 ng\u00e0y cho th\u1ecbt qu\u1ea3 m\u1ec1m nh\u0169n r\u1ed3i \u0111\u00e3i, r\u1eeda s\u1ea1ch l\u1edbp th\u1ecbt qu\u1ea3 l\u1ea5y h\u1ea1t. R\u1ea3i \u0111\u1ec1u h\u1ea1t th\u00e0nh l\u1edbp m\u1ecfng 5-10cm, khi h\u1ea1t xe \u1ee7 v\u00e0o c\u00e1t \u1ea9m.<\/p>\n

H\u1ea1t re g\u1eebng kh\u00f3 b\u1ea3o qu\u1ea3n, h\u00e1i v\u1ec1 n\u00ean \u0111em gieo ngay. N\u1ebfu ch\u01b0a gieo k\u1ecbp ph\u1ea3i b\u1ea3o qu\u1ea3n trong c\u00e1t \u1ea9m v\u1edbi t\u1ef7 l\u1ec7 2 c\u00e1t : 1 h\u1ea1t v\u00e0 kh\u00f4ng \u0111\u1ec3 qu\u00e1 l\u00e2u 1 th\u00e1ng.<\/p>\n

M\u1ed9t kg c\u00f3 3200-3500 h\u1ea1t, t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m 70-85%, t\u1ea1o \u0111\u01b0\u1ee3c 1500-2000 c\u00e2y con.<\/p>\n

Ng\u00e2m h\u1ea1t 12 gi\u1edd trong n\u01b0\u1edbc \u1ea5m 40o<\/sup>C, sau \u0111\u00f3 \u0111\u00e3i h\u1ea1t l\u00e9p, v\u1edbt ra \u1ee7 trong c\u00e1t \u1ea9m v\u1edbi t\u1ef7 l\u1ec7 2 c\u00e1t: 1 h\u1ea1t. Sau 5-7 ng\u00e0y h\u1ea1t n\u1ee9t nanh, \u0111em c\u1ea5y v\u00e0o b\u1ea7u ho\u1eb7c gieo tr\u00ean lu\u1ed1ng, h\u1ea1t n\u1ecd c\u00e1ch h\u1ea1t kia m\u1ed9t \u0111\u1ed1t ng\u00f3n tay, l\u1ea5p \u0111\u1ea5t d\u00e0y 1cm, t\u1ee7 r\u01a1m r\u1ea1 tr\u00ean lu\u1ed1ng gieo.<\/p>\n

D\u00f9ng v\u1ecf b\u1ea7u Poly\u00eatylen k\u00edch th\u01b0\u1edbc 8x12cm. Ru\u1ed9t b\u1ea7u g\u1ed3m 85-90% \u0111\u1ea5t m\u1eb7t v\u01b0\u1eddn \u01b0\u01a1m ho\u1eb7c \u0111\u1ea5t m\u1eb7t d\u01b0\u1edbi r\u1eebng c\u00f3 th\u00e0nh ph\u1ea7n c\u01a1 gi\u1edbi nh\u1eb9 tr\u1ed9n v\u1edbi 10-15% ph\u00e2n chu\u1ed3ng hoai theo kh\u1ed1i l\u01b0\u1ee3ng.<\/p>\n

C\u1ea5y m\u1ed7i b\u1ea7u 1 h\u1ea1t \u0111\u00e3 n\u1ee9t nanh ho\u1eb7c 1 c\u00e2y gieo tr\u00ean lu\u1ed1ng. T\u01b0\u1edbi n\u01b0\u1edbc \u0111\u1ee7 \u1ea9m cho b\u1ea7u \u0111\u1ea5t sau khi c\u1ea5y h\u1ea1t ho\u1eb7c c\u1ea5y c\u00e2y. C\u1eafm t\u1ebf gu\u1ed9t ho\u1eb7c l\u00e0m d\u00e0n che 40-50% \u00e1nh s\u00e1ng, t\u01b0\u1edbi \u0111\u1ee7 \u1ea9m th\u01b0\u1eddng xuy\u00ean, sau 15-20 ng\u00e0y c\u00e2y m\u1ea7m ra l\u00e1 th\u1eadt. \u0110\u1ecbnh k\u1ef3 15-20 ng\u00e0y l\u00e0m c\u1ecf, ph\u00e1 v\u00e1ng m\u1ed9t l\u1ea7n. Khi c\u00e2y con \u0111\u01b0\u1ee3c 3-4 th\u00e1ng tu\u1ed5i, gi\u1ea3m \u0111\u1ed9 che s\u00e1ng c\u00f2n 20-30%.<\/p>\n

V\u1ec7 sinh v\u01b0\u1eddn \u01b0\u01a1m s\u1ea1ch s\u1ebd, ph\u00f2ng tr\u1eeb n\u1ea5m r\u1ec9 s\u1eaft, b\u1ec7nh th\u1ed1i c\u1ed5 r\u1ec5, \u0111\u1ed1m l\u00e1 cho c\u00e2y \u01b0\u01a1m.<\/p>\n

Ti\u00eau chu\u1ea9n c\u00e2y \u0111em tr\u1ed3ng: 6-7 th\u00e1ng tu\u1ed5i ho\u1eb7c 12 th\u00e1ng tu\u1ed5i, cao 30-35cm, ho\u1eb7c 50-65cm, \u0111\u01b0\u1eddng k\u00ednh c\u1ed5 r\u1ec5 0,4-0,5cm, kh\u00f4ng s\u00e2u b\u1ec7nh, c\u1ee5t ng\u1ecdn.<\/p>\n

4. Tr\u00f4\u0300ng va\u0300 ch\u0103m so\u0301c r\u01b0\u0300ng<\/b><\/p>\n

Th\u1eddi v\u1ee5 tr\u1ed3ng v\u00e0o v\u1ee5 Xu\u00e2n th\u00e1ng 2-4 v\u00e0 v\u1ee5 Thu v\u00e0o th\u00e1ng 7-9 \u1edf c\u00e1c t\u1ec9nh ph\u00eda B\u1eafc v\u00e0 v\u00e0o m\u00f9a m\u01b0a \u1edf c\u00e1c t\u1ec9nh mi\u1ec1n Trung v\u00e0 T\u00e2y Nguy\u00ean.<\/p>\n

\u0110\u00e0o h\u1ed1 v\u1edbi k\u00edch th\u01b0\u1edbc 40x40x40cm.<\/p>\n

Tr\u1ed3ng Re g\u1eebng \u1edf \u0111\u1ea5t r\u1eebng ngh\u00e8o, c\u00e2y b\u1ee5i c\u00f2n t\u00ednh ch\u1ea5t \u0111\u1ea5t r\u1eebng. C\u00f3 th\u1ec3 tr\u1ed3ng h\u1ed7n lo\u00e0i v\u1edbi c\u00e2y l\u00e1 r\u1ed9ng kh\u00e1c ho\u1eb7c tr\u1ed3ng b\u1ed5 sung theo r\u1ea1ch, theo \u0111\u00e1m trong r\u1eebng khoanh nu\u00f4i t\u00e1i sinh v\u1edbi c\u00e1c m\u1eadt \u0111\u1ed9 250c\u00e2y\/ha, 500 c\u00e2y\/ha, 1100 c\u00e2y\/ha.<\/p>\n

Tr\u1ed3ng theo r\u1ea1ch r\u1ed9ng 2-2,5m, r\u1ea1ch n\u1ecd c\u00e1ch r\u1ea1ch kia 6m, c\u00e2y c\u00e1ch c\u00e2y 3m.<\/p>\n

Ch\u0103m s\u00f3c 3 n\u0103m li\u1ec1n: n\u0103m \u0111\u1ea7u tr\u1ed3ng d\u1eb7m, ch\u0103m s\u00f3c 2 l\u1ea7n \u0111\u1ed1i v\u1edbi r\u1eebng tr\u1ed3ng v\u1ee5 Thu (L\u1ea7n 1 sau tr\u1ed3ng 2 th\u00e1ng, l\u1ea7n 2 v\u00e0o th\u00e1ng 11-12) v\u00e0 ch\u0103m s\u00f3c 3 l\u1ea7n \u0111\u1ed1i v\u1edbi r\u1eebng tr\u1ed3ng v\u1ee5 Xu\u00e2n (L\u1ea7n 1 sau tr\u1ed3ng 2 th\u00e1ng, l\u1ea7n 2 v\u00e0o th\u00e1ng 8-9 v\u00e0 l\u1ea7n 3 v\u00e0o th\u00e1ng 11-12). N\u1ed9i dung ch\u0103m s\u00f3c g\u1ed3m ph\u00e1t d\u00e2y leo, c\u00e2y b\u1ee5i x\u00e2m l\u1ea5n, vun x\u1edbi g\u1ed1c r\u1ed9ng 0,5-1m.<\/p>\n

N\u0103m th\u1ee9 2 v\u00e0 3 ch\u0103m s\u00f3c 3 l\u1ea7n m\u1ed7i n\u0103m v\u00e0o \u0111\u1ea7u m\u00f9a m\u01b0a, cu\u1ed1i m\u00f9a m\u01b0a v\u00e0 cu\u1ed1i m\u00f9a kh\u00f4, ch\u1ee7 y\u1ebfu l\u00e0 ph\u00e1t d\u00e2y leo, c\u00e2y b\u1ee5i, c\u00e2y c\u1ecf x\u00e2m l\u1ea5n v\u00e0 vun x\u1edbi g\u1ed1c r\u1ed9ng 0,8-1m.<\/p>\n

Kh\u00f4ng \u0111\u1ec3 ng\u01b0\u1eddi ho\u1eb7c tr\u00e2u b\u00f2 ph\u00e1 ho\u1ea1i, ph\u00f2ng ch\u1ed1ng ch\u00e1y r\u1eebng.<\/p>\n

5. Khai tha\u0301c, s\u01b0\u0309 du\u0323ng<\/b><\/p>\n

G\u1ed7 c\u00f3 t\u1ef7 tr\u1ecdng 0,45-0,55, c\u00f3 m\u00f9i th\u01a1m, gi\u00e1c l\u00f5i ph\u00e2n bi\u1ec7t, x\u1ebfp nh\u00f3m IV, d\u1ec5 gia c\u00f4ng, d\u00f9ng \u0111\u00f3ng \u0111\u1ed3 m\u1ecdc d\u00e2n d\u1ee5ng.<\/p>\n

Re g\u1eebng c\u00f3 s\u1ee9c t\u0103ng tr\u01b0\u1edfng 1cm\/n\u0103m v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh, 0,8-1 m\/n\u0103m v\u1ec1 chi\u1ec1u cao. R\u1eebng tr\u1ed3ng 20-25 tu\u1ed5i c\u00f3 \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c 30-35 cm, chi\u1ec1u cao 20-25 m c\u00f3 th\u1ec3 khai th\u00e1c ch\u1ecdn, \u0111\u1ec3 l\u1ea1i nu\u00f4i d\u01b0\u1ee1ng nh\u1eefng c\u00e2y sinh tr\u01b0\u1edfng t\u1ed1t, kh\u00f4ng cong queo, s\u00e2u b\u1ec7nh.<\/p>\n

T\u1eadn d\u1ee5ng l\u00e1, v\u1ecf \u0111\u1ec3 c\u1ea5t tinh d\u1ea7u d\u00f9ng trong y h\u1ecdc.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

RE G\u01af\u0300NG T\u00ean kh\u00e1c: Re b\u1ea7u, re l\u1ee3n, re l\u00e1 t\u00f9 T\u00ean khoa h\u1ecdc: Cinnamomum bejolghota (Buch. Ham.) Sweet \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Cinnamomum obtusifolium (Roxb.) Nees H\u1ecd th\u1ef1c v\u1eadt: Long n\u00e3o (Lauraceae) (Ngu\u1ed3n ch\u00ednh: Nguy\u1ec5n Th\u1ecb Nhung, 2009) 1. \u0110\u0103\u0323c \u0111i\u00ea\u0309m hi\u0300nh tha\u0301i C\u00e2y g\u1ed7 l\u1edbn, cao t\u1edbi 30m, \u0111\u01b0\u1eddng k\u00ednh c\u00f3 th\u1ec3 \u0111\u1ea1t 50cm. V\u1ecf ngo\u00e0i […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[15,72],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/13268"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=13268"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/13268\/revisions"}],"predecessor-version":[{"id":13270,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/13268\/revisions\/13270"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=13268"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=13268"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=13268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}