{"id":9067,"date":"2009-04-20T08:28:20","date_gmt":"2009-04-20T01:28:20","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2009\/04\/ket-qua-nghien-cuu-bien-phap-cai-thien-he-re-cay-tram-trang-trong-giai-doan-vuon-uom\/"},"modified":"2013-10-06T09:01:16","modified_gmt":"2013-10-06T02:01:16","slug":"ket-qua-nghien-cuu-bien-phap-cai-thien-he-re-cay-tram-trang-trong-giai-doan-vuon-uom","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/ket-qua-nghien-cuu-bien-phap-cai-thien-he-re-cay-tram-trang-trong-giai-doan-vuon-uom\/","title":{"rendered":"K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u bi\u1ec7n ph\u00e1p c\u1ea3i thi\u1ec7n h\u1ec7 r\u1ec5 c\u00e2y Tr\u00e1m tr\u1eafng trong giai \u0111o\u1ea1n v\u01b0\u1eddn \u01b0\u01a1m"},"content":{"rendered":"\n

Ph\u1ea1m \u0110\u1ee9c Tu\u1ea5n<\/strong> <\/p>\n

<\/strong>C\u1ee5c L\u00e2m nghi\u1ec7p<\/em> <\/p>\n

Nguy\u1ec5n Qu\u1ed1c Tu\u1ea5n<\/strong> <\/p>\n

Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc L\u00e2m nghi\u1ec7p<\/em> <\/p>\n

\u0110\u1eb6T V\u1ea4N \u0110\u1ec0<\/strong> <\/p>\n

Tr\u00e1m tr\u1eafng (Canarium album<\/em> Raeusch) l\u00e0 m\u1ed9t lo\u00e0i c\u00e2y \u0111a t\u00e1c d\u1ee5ng, n\u00ean \u0111\u01b0\u1ee3c ch\u00fa \u00fd g\u00e2y tr\u1ed3ng nhi\u1ec1u, k\u1ec3 c\u1ea3 tr\u1ed3ng ph\u00e2n t\u00e1n v\u00e0 tr\u1ed3ng r\u1eebng t\u1eadp trung \u0111\u1ec3 cung c\u1ea5p g\u1ed7 nguy\u00ean li\u1ec7u v\u00e0 th\u1ef1c ph\u1ea9m.M\u1ed9t trong nh\u1eefng \u0111\u1eb7c t\u00ednh sinh h\u1ecdc c\u1ee7a lo\u00e0i Tr\u00e1m tr\u1eafng m\u1ecdc t\u1ef1 nhi\u00ean t\u1eeb h\u1ea1t l\u00e0 c\u00f3 r\u1ec5 c\u1ecdc \u0111\u01a1n tr\u1ee5c, \u0111\u00e2m th\u1eb3ng, ph\u00e1t tri\u1ec3n r\u1ea5t s\u00e2u, r\u1ec5 b\u00e0ng ph\u00e1t tri\u1ec3n r\u1ea5t mu\u1ed9n v\u00e0 s\u1ed1 l\u01b0\u1ee3ng \u00edt. B\u1ed9 r\u1ec5 nh\u01b0 v\u1eady th\u01b0\u1eddng t\u1ea1o ra th\u00e2n c\u00e2y cao to, th\u1eb3ng \u0111\u1ee9ng v\u00e0 t\u00e1n l\u00e1 g\u1ecdn. <\/p>\n

Trong v\u01b0\u1eddn \u01b0\u01a1m, gieo h\u1ea1t Tr\u00e1m tr\u1eafng n\u1ebfu kh\u00f4ng c\u00f3 t\u00e1c \u0111\u1ed9ng g\u00ec s\u1ebd \u0111\u01b0\u1ee3c c\u00e2y con ch\u1ec9 c\u00f3 m\u1ed9t r\u1ec5 c\u1ecdc d\u00e0i, r\u1ea5t \u00edt r\u1ec5 b\u00e0ng (h\u00ecnh 1) n\u00ean kh\u00f4ng th\u1ec3 tr\u1ed3ng b\u1eb1ng c\u00e2y con r\u1ec5 tr\u1ea7n, th\u1eadm ch\u00ed trong th\u1ef1c t\u1ebf s\u1ea3n xu\u1ea5t d\u00f9ng c\u00e2y c\u00f3 b\u1ea7u c\u0169ng kh\u00f3 v\u1eadn chuy\u1ec3n d\u00e0i ng\u00e0y v\u00e0 c\u00e2y tr\u1ed3ng d\u1ec5 ch\u1ebft. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng c\u1ea3n tr\u1edf cho ph\u00e1t tri\u1ec3n di\u1ec7n t\u00edch Tr\u00e1m tr\u1eafng v\u00e0 l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n tr\u1ed3ng r\u1eebng th\u01b0\u1eddng \u0111\u1ea1t t\u1ef7 l\u1ec7 s\u1ed1ng th\u1ea5p. \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00f3 gi\u1ea3i ph\u00e1p \u0111\u1ec3 c\u1ea3i thi\u1ec7n h\u1ec7 r\u1ec5 c\u00e2y Tr\u00e1m con, g\u00f3p ph\u1ea7n n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng c\u00e2y con cho tr\u1ed3ng r\u1eebng. <\/p>\n

M\u1eb7t kh\u00e1c, trong th\u1ef1c t\u1ebf c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng \u1edf m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y g\u1ed7 l\u00e0: N\u1ebfu r\u1ec5 c\u1ecdc b\u1ecb \u0111\u1ee9t khi c\u00f2n non s\u1ebd h\u00ecnh th\u00e0nh b\u1ed9 r\u1ec5 c\u1ecdc ch\u00f9m v\u00e0 h\u1ec7 r\u1ec5 b\u00e0ng m\u1ecdc nhi\u1ec1u, r\u1ec5 c\u1ecdc \u0111\u1ee9t c\u00e0ng s\u1edbm th\u00ec xu th\u1ebf n\u00e0y c\u00e0ng m\u1ea1nh. Tr\u01b0\u1eddng h\u1ee3p n\u00e0y s\u1ebd t\u1ea1o ra c\u00e2y ph\u00e2n c\u00e0nh s\u1edbm, t\u00e1n x\u00f2e r\u1ed9ng, r\u1ec5 b\u00e0ng m\u1edf r\u1ed9ng t\u1edbi gi\u1edbi h\u1ea1n g\u1ea5p 1,5 – 2 l\u1ea7n b\u00f3ng chi\u1ebfu th\u1eb3ng \u0111\u1ee9ng c\u1ee7a t\u00e1n l\u00e1 n\u00ean r\u1ea5t thu\u1eadn l\u1ee3i cho x\u1edbi x\u00e1o, b\u00f3n ph\u00e2n. \u0110\u00e2y l\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y th\u00e2n g\u1ed7 m\u00e0 c\u00e2y Tr\u00e1m tr\u1eafng l\u00e0 m\u1ed9t tr\u01b0\u1eddng h\u1ee3p \u0111i\u1ec3n h\u00ecnh. <\/p>\n

L\u1ee3i d\u1ee5ng \u0111\u1eb7c \u0111i\u1ec3m n\u00e0y c\u00f3 th\u1ec3 t\u00e1c \u0111\u1ed9ng v\u00e0o ph\u1ea7n r\u1ec5 khi c\u00f2n non \u0111\u1ec3 t\u1ea1o ra m\u1ed9t h\u1ec7 r\u1ec5 ph\u00e1t tri\u1ec3n theo c\u1ea3 chi\u1ec1u d\u1ecdc l\u1eabn chi\u1ec1u ngang. B\u00e0i vi\u1ebft, n\u00eau k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u bi\u1ec7n ph\u00e1p t\u00e1c \u0111\u1ed9ng c\u1ea3i thi\u1ec7n h\u1ec7 r\u1ec5 c\u00e2y Tr\u00e1m tr\u1eafng th\u1eddi k\u1ef3 r\u1ec5 m\u1ea7m c\u1ee7a h\u1ea1t Tr\u00e1m tr\u1eafng gieo \u01b0\u01a1m v\u00e0 \u1ea3nh h\u01b0\u1edfng c\u1ee7a n\u00f3 \u0111\u1ebfn vi\u1ec7c h\u00ecnh th\u00e0nh h\u1ec7 r\u1ec5, sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y con \u1edf v\u01b0\u1eddn \u01b0\u01a1m v\u00e0 t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e2y con sau khi tr\u1ed3ng r\u1eebng. <\/p>\n

C\u1eadp nh\u1eadt t\u1ea1i \u0111\u00e2y<\/a><\/strong> <\/p>\n","protected":false},"excerpt":{"rendered":"

\n \n<\/p>\n

\nTrám tr\u1eafng (Canarium album<\/em> Raeusch) là m\u1ed9t loài cây \u0111a tác d\u1ee5ng, nên \u0111\u01b0\u1ee3c chú ý gây tr\u1ed3ng nhi\u1ec1u, k\u1ec3 c\u1ea3 tr\u1ed3ng phân tán và tr\u1ed3ng r\u1eebng t\u1eadp trung \u0111\u1ec3 cung c\u1ea5p g\u1ed7 nguyên li\u1ec7u và th\u1ef1c ph\u1ea9m.<\/font><\/font>M\u1ed9t trong nh\u1eefng \u0111\u1eb7c tính sinh h\u1ecdc c\u1ee7a loài Trám tr\u1eafng m\u1ecdc t\u1ef1 nhiên t\u1eeb h\u1ea1t là có r\u1ec5 c\u1ecdc \u0111\u01a1n tr\u1ee5c, \u0111âm th\u1eb3ng, phát tri\u1ec3n r\u1ea5t sâu, r\u1ec5 bàng phát tri\u1ec3n r\u1ea5t mu\u1ed9n và s\u1ed1 l\u01b0\u1ee3ng ít. B\u1ed9 r\u1ec5 nh\u01b0 v\u1eady th\u01b0\u1eddng t\u1ea1o ra thân cây cao to, th\u1eb3ng \u0111\u1ee9ng và tán lá g\u1ecdn. <\/font><\/font>Trong v\u01b0\u1eddn \u01b0\u01a1m, gieo h\u1ea1t Trám tr\u1eafng n\u1ebfu không có tác \u0111\u1ed9ng gì s\u1ebd \u0111\u01b0\u1ee3c cây con ch\u1ec9 có m\u1ed9t r\u1ec5 c\u1ecdc dài, r\u1ea5t ít r\u1ec5 bàng (hình 1) nên không th\u1ec3 tr\u1ed3ng b\u1eb1ng cây con r\u1ec5 tr\u1ea7n, th\u1eadm chí trong th\u1ef1c t\u1ebf s\u1ea3n xu\u1ea5t dùng cây có b\u1ea7u c\u0169ng khó v\u1eadn chuy\u1ec3n dài ngày và cây tr\u1ed3ng d\u1ec5 ch\u1ebft. \u0110ây là m\u1ed9t trong nh\u1eefng c\u1ea3n tr\u1edf cho phát tri\u1ec3n di\u1ec7n tích Trám tr\u1eafng và là m\u1ed9t trong nh\u1eefng nguyên nhân tr\u1ed3ng r\u1eebng th\u01b0\u1eddng \u0111\u1ea1t t\u1ef7 l\u1ec7 s\u1ed1ng th\u1ea5p. \u0110i\u1ec1u này \u0111òi h\u1ecfi ph\u1ea3i có gi\u1ea3i pháp \u0111\u1ec3 c\u1ea3i thi\u1ec7n h\u1ec7 r\u1ec5 cây Trám con, góp ph\u1ea7n nâng cao ch\u1ea5t l\u01b0\u1ee3ng cây con cho tr\u1ed3ng r\u1eebng.<\/font><\/font>\n<\/p>\n

\n <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[18],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9067"}],"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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=9067"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9067\/revisions"}],"predecessor-version":[{"id":10521,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9067\/revisions\/10521"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9067"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9067"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}