{"id":9074,"date":"2009-04-20T08:30:14","date_gmt":"2009-04-20T01:30:14","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2009\/04\/anh-huong-cua-ky-thuat-gieo-uom-toi-sinh-truong-cay-con-gioi-bac-michelia-macclurei-dandy\/"},"modified":"2013-10-06T09:01:16","modified_gmt":"2013-10-06T02:01:16","slug":"anh-huong-cua-ky-thuat-gieo-uom-toi-sinh-truong-cay-con-gioi-bac-michelia-macclurei-dandy","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/anh-huong-cua-ky-thuat-gieo-uom-toi-sinh-truong-cay-con-gioi-bac-michelia-macclurei-dandy\/","title":{"rendered":"\u1ea2nh h\u01b0\u1edfng c\u1ee7a k\u1ef9 thu\u1eadt gieo \u01b0\u01a1m t\u1edbi sinh tr\u01b0\u1edfng c\u00e2y con Gi\u1ed5i b\u1eafc (Michelia macclurei Dandy)"},"content":{"rendered":"\n

Tr\u1ea7n V\u0103n \u0110\u00f4, Tr\u1ea7n L\u00e2m \u0110\u1ed3ng<\/strong> <\/p>\n

Nguy\u1ec5n To\u00e0n Th\u1eafng, Nguy\u1ec5n B\u00e1 V\u0103n <\/strong> <\/p>\n

Ph\u00f2ng Nghi\u00ean c\u1ee9u K\u1ef9 thu\u1eadt L\u00e2m sinh<\/em> <\/p>\n

Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t <\/em>Nam<\/em> <\/p>\n

T\u00d3M T\u1eaeT<\/strong> <\/p>\n

Gi\u1ed5i B\u1eafc c\u00f3 t\u00ean Khoa h\u1ecdc l\u00e0 Michelia macclurei<\/em> Dandy, c\u00f3 ph\u00e2n b\u1ed1 t\u1ef1 nhi\u00ean \u1edf v\u00f9ng \u0110\u00f4ng Nam Trung Qu\u1ed1c v\u00e0 v\u00f9ng \u0110\u00f4ng B\u1eafc Vi\u1ec7t Nam, l\u00e0 c\u00e2y g\u1ed7 l\u1edbn sinh tr\u01b0\u1edfng nhanh th\u00edch h\u1ee3p cho tr\u1ed3ng h\u1ed7n giao v\u1edbi Th\u00f4ng m\u00e3 v\u0129 v\u00e0 Sa m\u1ed9c. G\u1ed7 Gi\u1ed5i b\u1eafc t\u1ed1t, \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 \u0111\u00f3ng \u0111\u1ed3 gia d\u1ee5ng, c\u00e2y c\u00f3 t\u00e1n \u0111\u1eb9p, hoa th\u01a1m th\u01b0\u1eddng \u0111\u01b0\u1ee3c tr\u1ed3ng trong c\u00e1c \u0111\u00f4 th\u1ecb, c\u00f4ng vi\u00ean. Nghi\u00ean c\u1ee9u c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt gieo \u01b0\u01a1m t\u1ea1o c\u00e2y con Gi\u1ed5i b\u1eafc l\u00e0 c\u1ea7n thi\u1ebft nh\u1eb1m s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c c\u00e2y con ch\u1ea5t l\u01b0\u1ee3ng cao nh\u1eb1m ph\u1ee5c v\u1ee5 cho c\u00f4ng t\u00e1c tr\u1ed3ng r\u1eebng. \u0110\u1ec3 nghi\u00ean c\u1ee9u k\u1ef9 thu\u1eadt gieo \u01b0\u01a1m, h\u1ea1t gi\u1ed1ng \u0111\u01b0\u1ee3c nh\u1eadp t\u1eeb Trung Qu\u1ed1c v\u00e0 \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed theo 3 bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt: c\u01b0\u1eddng \u0111\u1ed9 che s\u00e1ng, th\u00e0nh ph\u1ea7n ru\u1ed9t b\u1ea7u v\u00e0 kho\u1ea3ng c\u00e1ch c\u1ea5y c\u00e2y. C\u00e2y con \u0111\u01b0\u1ee3c theo d\u00f5i \u0111\u1ebfn 9 th\u00e1ng tu\u1ed5i bao g\u1ed3m c\u00e1c ch\u1ec9 ti\u00eau \u0110\u01b0\u1eddng k\u00ednh g\u1ed1c – Dg, Chi\u1ec1u cao – Hvn v\u00e0 t\u1ef7 l\u1ec7 s\u1ed1ng. K\u1ebft qu\u1ea3 th\u00ed nghi\u1ec7m cho th\u1ea5y c\u01b0\u1eddng \u0111\u1ed9 che s\u00e1ng th\u00edch h\u1ee3p nh\u1ea5t t\u1eeb 50-75%, d\u00f9ng l\u1edbp \u0111\u1ea5t m\u1eb7t tr\u1ed9n v\u1edbi 1% ph\u00e2n l\u00e2n cho th\u00e0nh ph\u1ea7n ru\u1ed9t b\u1ea7u th\u00edch h\u1ee3p nh\u1ea5t v\u00e0 kh\u00f4ng c\u1ea7n b\u1ed1 tr\u00ed gi\u00e3n c\u00e1ch c\u00e2y con khi gieo \u01b0\u01a1m. <\/p>\n

T\u1eeb kho\u00e1:<\/strong> Gi\u1ed5i b\u1eafc, c\u01b0\u1eddng \u0111\u1ed9 che s\u00e1ng, h\u1ed7n h\u1ee3p ru\u1ed9t b\u1ea7u, kho\u1ea3ng c\u00e1ch c\u1ea5y c\u00e2y. <\/p>\n

GI\u1edaI THI\u1ec6U<\/strong> <\/p>\n

Gi\u1ed5i b\u1eafc c\u00f3 t\u00ean khoa h\u1ecdc l\u00e0 Michelia macclurei<\/em> Dandy, thu\u1ed9c h\u1ecd M\u1ed9c lan (Magnoliaceae) c\u00f3 ph\u00e2n b\u1ed1 t\u1ef1 nhi\u00ean \u1edf v\u00f9ng \u0110\u00f4ng Nam Trung Qu\u1ed1c v\u00e0 v\u00f9ng \u0110\u00f4ng B\u1eafc Vi\u1ec7t Nam nh\u01b0 Qu\u1ea3ng Ninh, L\u1ea1ng S\u01a1n, Cao B\u1eb1ng (Kh\u00fac \u0110\u00ecnh Th\u00e0nh, 2004; \u0110\u1ed7 H\u1eefu \u0110o\u00e0n, 2006). Gi\u1ed5i b\u1eafc th\u01b0\u1eddng g\u1eb7p \u1edf \u0111\u1ed9 cao 600m, m\u1ecdc r\u1ea3i r\u00e1c ho\u1eb7c th\u00e0nh qu\u1ea7n th\u1ee5 \u0111\u01a1n \u01b0u di\u1ec7n t\u00edch nh\u1ecf \u1edf nh\u1eefng v\u00f9ng kh\u00ed h\u1eadu \u00e1 nhi\u1ec7t \u0111\u1edbi \u1ea9m, nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n n\u0103m 21o<\/sup>C, b\u00ecnh qu\u00e2n th\u00e1ng n\u00f3ng nh\u1ea5t 28o<\/sup>C, b\u00ecnh qu\u00e2n th\u00e1ng l\u1ea1nh nh\u1ea5t 11o<\/sup>C, l\u01b0\u1ee3ng m\u01b0a h\u00e0ng n\u0103m 1.500-1.800mm, \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i tr\u00ean 80%. Gi\u1ed5i b\u1eafc ph\u00f9 h\u1ee3p v\u1edbi kh\u00ed h\u1eadu \u00e1 nhi\u1ec7t \u0111\u1edbi \u1ea9m. Th\u00edch h\u1ee3p \u0111\u1ea5t Feralit \u0111\u1ecf ho\u1eb7c \u0111\u1ecf v\u00e0ng ph\u00e1t tri\u1ec3n tr\u00ean \u0111\u00e1 granit, di\u1ec7p th\u1ea1ch, phi\u1ebfn th\u1ea1ch c\u00e1t, chua ho\u1eb7c h\u01a1i chua. Gi\u1ed5i b\u1eafc l\u00e0 c\u00e2y trung t\u00ednh thi\u00ean d\u01b0\u01a1ng, l\u00fac nh\u1ecf \u01b0a b\u00f3ng nh\u1eb9, r\u1ec5 \u0103n n\u00f4ng, \u01b0a \u1ea9m, ch\u1ecbu \u0111\u01b0\u1ee3c gi\u00e1 r\u00e9t m\u1ee9c \u0111\u1ed9 nh\u1eb9, c\u00f3 th\u1ec3 \u0111\u01b0a l\u00ean \u0111\u1ed9 cao t\u1edbi 600m so v\u1edbi m\u1eb7t bi\u1ec3n (C\u1ee5c L\u00e2m nghi\u1ec7p). Gi\u1ed5i b\u1eafc l\u00e0 c\u00e2y g\u1ed7 l\u1edbn th\u01b0\u1eddng xanh, cao t\u1edbi 35m, \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c \u0111\u1ebfn 100cm. Gi\u1ed5i b\u1eafc l\u00e0 c\u00e2y g\u1ed7 l\u1edbn, sinh tr\u01b0\u1edfng nhanh v\u1edbi chu k\u1ef3 kinh doanh kho\u1ea3ng 25 – 30 n\u0103m, l\u00e0 c\u00e2y c\u00f3 kh\u1ea3 n\u0103ng t\u00e1i sinh ch\u1ed3i m\u1ea1nh, th\u00edch h\u1ee3p v\u1edbi tr\u1ed3ng h\u1ed7n giao v\u1edbi c\u00e1c lo\u00e0i nh\u01b0 Th\u00f4ng m\u00e3 v\u0129, Sa mu. G\u1ed7 Gi\u1ed5i b\u1eafc \u0111\u01b0\u1ee3c coi l\u00e0 g\u1ed7 t\u1ed1t \u0111\u1ec3 \u0111\u00f3ng \u0111\u1ed3 m\u1ed9c gia d\u1ee5ng, m\u1ed9c x\u00e2y d\u1ef1ng. T\u00e1n c\u00e2y tr\u00f2n \u0111\u1eb9p, th\u00e2n th\u1eb3ng, hoa r\u1ea5t th\u01a1m n\u00ean th\u00edch h\u1ee3p tr\u1ed3ng trong \u0111\u00f4 th\u1ecb, c\u00f4ng vi\u00ean. <\/p>\n

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

\n \n<\/p>\n

\nGi\u1ed5i B\u1eafc có tên Khoa h\u1ecdc là Michelia macclurei<\/em> Dandy, có phân b\u1ed1 t\u1ef1 nhiên \u1edf vùng \u0110ông Nam Trung Qu\u1ed1c và vùng \u0110ông B\u1eafc Vi\u1ec7t Nam, là cây g\u1ed7 l\u1edbn sinh tr\u01b0\u1edfng nhanh thích h\u1ee3p cho tr\u1ed3ng h\u1ed7n giao v\u1edbi Thông mã v\u0129 và Sa m\u1ed9c. G\u1ed7 Gi\u1ed5i b\u1eafc t\u1ed1t, \u0111\u01b0\u1ee3c dùng \u0111\u1ec3 \u0111óng \u0111\u1ed3 gia d\u1ee5ng, cây có tán \u0111\u1eb9p, hoa th\u01a1m th\u01b0\u1eddng \u0111\u01b0\u1ee3c tr\u1ed3ng trong các \u0111ô th\u1ecb, công viên. Nghiên c\u1ee9u các bi\u1ec7n pháp k\u1ef9 thu\u1eadt gieo \u01b0\u01a1m t\u1ea1o cây con Gi\u1ed5i b\u1eafc là c\u1ea7n thi\u1ebft nh\u1eb1m s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c cây con ch\u1ea5t l\u01b0\u1ee3ng cao nh\u1eb1m ph\u1ee5c v\u1ee5 cho công tác tr\u1ed3ng r\u1eebng. \u0110\u1ec3 nghiên c\u1ee9u k\u1ef9 thu\u1eadt gieo \u01b0\u01a1m, h\u1ea1t gi\u1ed1ng \u0111\u01b0\u1ee3c nh\u1eadp t\u1eeb Trung Qu\u1ed1c và \u0111\u01b0\u1ee3c b\u1ed1 trí theo 3 bi\u1ec7n pháp k\u1ef9 thu\u1eadt: c\u01b0\u1eddng \u0111\u1ed9 che sáng, thành ph\u1ea7n ru\u1ed9t b\u1ea7u và kho\u1ea3ng cách c\u1ea5y cây. Cây con \u0111\u01b0\u1ee3c theo dõi \u0111\u1ebfn 9 tháng tu\u1ed5i bao g\u1ed3m các ch\u1ec9 tiêu \u0110\u01b0\u1eddng kính g\u1ed1c – Dg, Chi\u1ec1u cao – Hvn và t\u1ef7 l\u1ec7 s\u1ed1ng. K\u1ebft qu\u1ea3 thí nghi\u1ec7m cho th\u1ea5y c\u01b0\u1eddng \u0111\u1ed9 che sáng thích h\u1ee3p nh\u1ea5t t\u1eeb 50-75%, dùng l\u1edbp \u0111\u1ea5t m\u1eb7t tr\u1ed9n v\u1edbi 1% phân lân cho thành ph\u1ea7n ru\u1ed9t b\u1ea7u thích h\u1ee3p nh\u1ea5t và không c\u1ea7n b\u1ed1 trí giãn cách cây con khi gieo \u01b0\u01a1m.<\/font><\/font><\/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\/9074"}],"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=9074"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9074\/revisions"}],"predecessor-version":[{"id":10528,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9074\/revisions\/10528"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9074"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9074"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9074"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}