{"id":21017,"date":"2021-06-18T18:50:17","date_gmt":"2021-06-18T11:50:17","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/?p=21017"},"modified":"2021-06-25T08:57:08","modified_gmt":"2021-06-25T01:57:08","slug":"thong-tin-luan-an-tien-si-cua-nghien-cuu-sinh-le-thi-ngoc-ha","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/thong-tin-luan-an-tien-si-cua-nghien-cuu-sinh-le-thi-ngoc-ha\/","title":{"rendered":"Th\u00f4ng tin Lu\u1eadn \u00e1n Ti\u1ebfn s\u0129 c\u1ee7a Nghi\u00ean c\u1ee9u sinh L\u00ea Th\u1ecb Ng\u1ecdc H\u00e0"},"content":{"rendered":"

T\u00ean lu\u1eadn \u00e1n: \u201cNghi\u00ean c\u1ee9u m\u1ed9t s\u1ed1 c\u01a1 s\u1edf khoa h\u1ecdc tr\u1ed3ng r\u1eebng th\u00e2m canh Sa m\u1ed9c (Cunninghamia lanceolata (Lamb.) Hook) \u1edf v\u00f9ng \u0110\u00f4ng B\u1eafc B\u1ed9\u201d <\/em><\/p>\n

Chuy\u00ean ng\u00e0nh: L\u00e2m sinh \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0M\u00e3 s\u1ed1: 9 62 02 05<\/p>\n

H\u1ecd v\u00e0 t\u00ean nghi\u00ean c\u1ee9u sinh: L\u00ea Th\u1ecb Ng\u1ecdc H\u00e0<\/p>\n

H\u1ecd v\u00e0 t\u00ean c\u00e1n b\u1ed9 h\u01b0\u1edbng d\u1eabn: TS. \u0110\u1eb7ng V\u0103n Thuy\u1ebft; TS. Tr\u1ea7n B\u00ecnh \u0110\u00e0.<\/p>\n

C\u01a1 s\u1edf \u0111\u00e0o t\u1ea1o: Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/p>\n

T\u00d3M T\u1eaeT NH\u1eeeNG K\u1ebeT LU\u1eacN M\u1edaI C\u1ee6A LU\u1eacN \u00c1N<\/strong><\/p>\n

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  1. Nghi\u00ean c\u1ee9u v\u1ec1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a m\u1ed9t s\u1ed1 nh\u00e2n t\u1ed1 l\u1eadp \u0111\u1ecba \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a r\u1eebng tr\u1ed3ng Sa m\u1ed9c cho th\u1ea5y: v\u1edbi ch\u1ec9 ti\u00eau D1.3<\/sub>, \u1ea3nh h\u01b0\u1edfng nhi\u1ec1u nh\u1ea5t l\u00e0 nh\u00e2n t\u1ed1 m\u1eadt \u0111\u1ed9 tr\u1ed3ng (26,11%) v\u00e0 nhi\u1ec7t \u0111\u1ed9 (24,91%) ti\u1ebfp \u0111\u00f3 l\u00e0 dung tr\u1ecdng \u0111\u1ea5t (10,79%), \u0111\u1ed9 d\u1ed1c (8,34%); l\u01b0\u1ee3ng m\u01b0a (6,29%), nit\u01a1 t\u1ed5ng s\u1ed1 (3,8%). \u0110\u1ed1i v\u1edbi Hvn<\/sub>, tu\u1ed5i c\u00e2y c\u00f3 m\u1ee9c \u1ea3nh h\u01b0\u1edfng cao nh\u1ea5t chi\u1ebfm 30,73%; nh\u00e2n t\u1ed1 l\u1eadp \u0111\u1ecba nh\u01b0 nhi\u1ec7t \u0111\u1ed9 chi\u1ebfm 23,50%; \u0111\u1ed9 cao (12,32%); \u0111\u1ed9 d\u1ed1c (10,93%), dung tr\u1ecdng \u0111\u1ea5t (7,41%) v\u00e0 Nit\u01a1 t\u1ed5ng s\u1ed1 trong \u0111\u1ea5t \u1ea3nh h\u01b0\u1edbng (3,02%). T\u1ed5ng ti\u1ebft di\u1ec7n ngang (\u2211G) ch\u1ecbu \u1ea3nh h\u01b0\u1edfng c\u1ee7a \u0111\u1ed9 d\u1ed1c (15,32%); ph\u1ed1t pho t\u1ed5ng s\u1ed1 (11,07%); h\u1ea1t c\u00e1t (10,44%); m\u1eadt \u0111\u1ed9 (7,30%); h\u00e0m l\u01b0\u1ee3ng m\u00f9n (7,13%); ni t\u01a1 t\u1ed5ng s\u1ed1 (7,09%); nhi\u1ec7t \u0111\u1ed9 (6,48%); h\u1ea1t s\u00e9t (0,33%) v\u00e0 \u0111\u1ed9 cao (3,02%).<\/li>\n
  2. \u1ea2nh h\u01b0\u1edfng c\u1ee7a l\u1eadp \u0111\u1ecba \u0111\u1ebfn t\u0103ng tr\u01b0\u1edfng r\u1eebng tr\u1ed3ng Sa m\u1ed9c c\u1ee5 th\u1ec3: \u0110\u1ed1i v\u1edbi ch\u1ec9 ti\u00eau tr\u1eef l\u01b0\u1ee3ng l\u00e2m ph\u1ea7n (M), nh\u00e2n t\u1ed1 \u0111\u1ed9 \u0111\u1ed1c c\u00f3 m\u1ee9c \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng l\u1edbn nh\u1ea5t (24,36%), nhi\u1ec7t \u0111\u1ed9 (22,28%), tu\u1ed5i c\u00e2y (8,39%), h\u1ea1t c\u00e1t (7,24%), Catinon \u0111\u1ea5t CEC (4,81%) v\u00e0 Nit\u01a1 t\u1ed5ng s\u1ed1 (4,36%). V\u1edbi ch\u1ec9 ti\u00eau t\u0103ng tr\u01b0\u1edfng tr\u1eef l\u01b0\u1ee3ng b\u00ecnh qu\u00e2n \u2206M, nhi\u1ec7t \u0111\u1ed9 c\u00f3 m\u1ee9c \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng l\u1edbn nh\u1ea5t (23,93%), \u0111\u1ed9 d\u1ed1c (14,79%), h\u1ea1t c\u00e1t (14,61%), tu\u1ed5i c\u00e2y (4,37%); Nit\u01a1 t\u1ed5ng s\u1ed1 (1,88%), h\u1ea1t s\u00e9t (7,32%) v\u00e0 dung tr\u1ecdng \u0111\u1ea5t (3,57%). M\u00f4 h\u00ecnh t\u01b0\u01a1ng quan t\u1ed1i \u01b0u gi\u1eefa \u2206M v\u1edbi c\u00e1c nh\u00e2n t\u1ed1 l\u1eadp \u0111\u1ecba x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c nh\u01b0 sau: \u2206M = 356,686 \u2013 27,694*Dung tr\u1ecdng + 0,753*C\u00e1t – 19,864*nhi\u1ec7t \u0111\u1ed9 + 0,690*\u0110\u1ed9 d\u1ed1c – 0,802*Tu\u1ed5i (R2<\/sup>=0,667).<\/em><\/li>\n
  3. K\u1ef9 thu\u1eadt tr\u1ed3ng r\u1eebng th\u00e2m canh Sa m\u1ed9c: K\u00edch th\u01b0\u1edbc h\u1ed1 tr\u1ed3ng t\u1ed1t nh\u1ea5t l\u00e0 \u01104 (60x60x40cm), ti\u1ebfp \u0111\u00f3 l\u00e0 \u01103 (50x50x40cm). Tu\u1ed5i c\u00e2y con Sa m\u1ed9c \u0111em tr\u1ed3ng t\u1eeb 12 \u0111\u1ebfn 18 th\u00e1ng tu\u1ed5i cho t\u1ef7 l\u1ec7 s\u1ed1ng cao h\u01a1n c\u00e2y con 9 th\u00e1ng tu\u1ed5i. M\u1eadt \u0111\u1ed9 tr\u1ed3ng r\u1eebng Sa m\u1ed9c trong 3 n\u0103m \u0111\u1ea7u t\u1ed1t nh\u1ea5t l\u00e0 3.300 c\u00e2y\/ha. C\u00f4ng th\u1ee9c ph\u00e2n b\u00f3n ph\u00f9 h\u1ee3p cho c\u00e2y Sa m\u1ed9c giai \u0111o\u1ea1n 3 n\u0103m \u0111\u1ea7u l\u00e0 (P4): 110g ur\u00ea + 350g supe l\u00e2n + 50g kali. T\u1ec9a c\u00e0nh cho Sa m\u1ed9c 3 n\u0103m \u0111\u1ea7u t\u1ed1t nh\u1ea5t l\u00e0 c\u00f4ng th\u1ee9c C3 (t\u1ec9a c\u00e1c c\u00e0nh t\u1eeb g\u1ed1c l\u00ean \u0111\u1ed9 cao 30% chi\u1ec1u cao c\u00e2y).<\/li>\n
  4. M\u1eadt \u0111\u1ed9 t\u1ec9a th\u01b0a th\u00edch h\u1ee3p cho r\u1eebng tr\u1ed3ng Sa m\u1ed9c tu\u1ed5i 7 v\u00e0 tu\u1ed5i 11 l\u00e0 c\u00f4ng th\u1ee9c m3 (gi\u1eef l\u1ea1i 1.600 c\u00e2y\/ha).<\/li>\n
  5. B\u00f3n ph\u00e2n cho r\u1eebng tr\u1ed3ng Sa m\u1ed9c t\u1ec9a th\u01b0a \u1edf tu\u1ed5i 7 v\u00e0 tu\u1ed5i 11 sau t\u1ec9a th\u01b0a 42 th\u00e1ng gi\u1eefa c\u00e1c CTTN b\u00f3n ph\u00e2n ch\u01b0a cho th\u1ea5y s\u1ef1 sai kh\u00e1c v\u1ec1 c\u00e1c ch\u1ec9 ti\u00eau t\u0103ng tr\u01b0\u1edfng. Do \u0111\u00f3, c\u1ea7n ti\u1ebfp t\u1ee5c theo d\u00f5i \u1edf c\u00e1c giai \u0111o\u1ea1n ti\u1ebfp theo, ho\u1eb7c c\u00e2n nh\u1eafc khi b\u00f3n ph\u00e2n cho r\u1eebng Sa m\u1ed9c giai \u0111o\u1ea1n n\u00e0y.<\/li>\n
  6. \u0110\u1ec1 xu\u1ea5t m\u1ed9t s\u1ed1 c\u01a1 s\u1edf khoa h\u1ecdc trong l\u1ef1a ch\u1ecdn l\u1eadp \u0111\u1ecba tr\u1ed3ng r\u1eebng v\u00e0 m\u1ed9t s\u1ed1 bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt th\u00e2m canh tr\u1ed3ng r\u1eebng Sa m\u1ed9c theo h\u01b0\u1edbng g\u1ed7 l\u1edbn t\u1ea1i v\u00f9ng \u0110\u00f4ng B\u1eafc B\u1ed9.<\/li>\n<\/ol>\n

    To\u00e0n v\u0103n lu\u1eadn \u00e1n \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u0103ng t\u1ea3i c\u00f4ng khai tr\u00ean trang web c\u1ee7a B\u1ed9 Gi\u00e1o d\u1ee5c v\u00e0 \u0110\u00e0o t\u1ea1o t\u1ea1i \u0111\u01b0\u1eddng link:\u00a0http:\/\/luanvan.moet.edu.vn\/?page=1.32&view=37648<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    T\u00ean lu\u1eadn \u00e1n: \u201cNghi\u00ean c\u1ee9u m\u1ed9t s\u1ed1 c\u01a1 s\u1edf khoa h\u1ecdc tr\u1ed3ng r\u1eebng th\u00e2m canh Sa m\u1ed9c (Cunninghamia lanceolata (Lamb.) Hook) \u1edf v\u00f9ng \u0110\u00f4ng B\u1eafc B\u1ed9\u201d Chuy\u00ean ng\u00e0nh: L\u00e2m sinh \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0M\u00e3 s\u1ed1: 9 62 02 05 H\u1ecd v\u00e0 t\u00ean nghi\u00ean c\u1ee9u sinh: L\u00ea Th\u1ecb Ng\u1ecdc H\u00e0 H\u1ecd v\u00e0 t\u00ean c\u00e1n b\u1ed9 h\u01b0\u1edbng d\u1eabn: TS. \u0110\u1eb7ng […]<\/p>\n","protected":false},"author":17,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[42,66],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/21017"}],"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\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=21017"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/21017\/revisions"}],"predecessor-version":[{"id":21018,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/21017\/revisions\/21018"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=21017"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=21017"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=21017"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}