{"id":22765,"date":"2023-07-11T17:00:44","date_gmt":"2023-07-11T10:00:44","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/?p=22765"},"modified":"2023-07-14T17:11:02","modified_gmt":"2023-07-14T10:11:02","slug":"thong-tin-luan-an-tien-si-cua-nghien-cuu-sinh-vu-tien-lam","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/thong-tin-luan-an-tien-si-cua-nghien-cuu-sinh-vu-tien-lam\/","title":{"rendered":"Th\u00f4ng tin Lu\u1eadn \u00e1n Ti\u1ebfn s\u0129 c\u1ee7a Nghi\u00ean c\u1ee9u sinh V\u0169 Ti\u1ebfn L\u00e2m"},"content":{"rendered":"

T\u00ean \u0111\u1ec1 t\u00e0i lu\u1eadn \u00e1n: Nghi\u00ean c\u1ee9u gi\u1ea3i ph\u00e1p b\u00f3n ph\u00e2n h\u1ee3p l\u00fd cho r\u1eebng tr\u1ed3ng Keo tai t\u01b0\u1ee3ng (<\/strong>Acacia mangium <\/em><\/strong>Willd) \u1edf Qu\u1ea3ng Ninh<\/strong><\/p>\n

Nga\u0300nh \u0111a\u0300o ta\u0323o: L\u00e2m sinh: \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\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: V\u0169 Ti\u1ebfn L\u00e2m<\/p>\n

H\u1ecd v\u00e0 t\u00ean gi\u00e1o vi\u00ean h\u01b0\u1edbng d\u1eabn khoa h\u1ecdc: \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 H\u01b0\u1edbng d\u1eabn 1: PGS. TS Nguy\u00ea\u0303n Huy S\u01a1n<\/p>\n

H\u01b0\u1edbng d\u1eabn 2: TS. Tr\u1ea7n V\u0103n \u0110\u00f4<\/p>\n

T\u00ean c\u01a1 s\u1edf \u0111\u00e0o t\u1ea1o: Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/p>\n

\u00a0<\/strong><\/p>\n

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

– \u0110\u1eb7c \u0111i\u1ec3m l\u1eadp \u0111\u1ecba khu v\u1ef1c tr\u1ed3ng r\u1eebng: <\/strong><\/p>\n

Nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh n\u0103m dao \u0111\u1ed9ng 22-23o<\/sup>C. L\u01b0\u1ee3ng m\u01b0a trung b\u00ecnh n\u0103m dao \u0111\u1ed9ng 1.700-2.000 mm, pHKCl dao \u0111\u1ed9ng 3,57-3,73. H\u00e0m l\u01b0\u1ee3ng m\u00f9n t\u1ea7ng \u0111\u1ea5t 0-20 cm trung b\u00ecnh (2,37-2,53 %), c\u00e1c t\u1ea7ng d\u01b0\u1edbi ngh\u00e8o (1-2%). N gi\u1ea3m d\u1ea7n theo \u0111\u1ed9 s\u00e2u v\u00e0 \u1edf m\u1ee9c ngh\u00e8o v\u00e0 trung b\u00ecnh (< 0,123 %). P2<\/sub>O5<\/sub> d\u1ec5 ti\u00eau \u1edf m\u1ee9c r\u1ea5t ngh\u00e8o (3 mg\/100 g \u0111\u1ea5t), v\u00e0 gi\u1ea3m d\u1ea7n theo \u0111\u1ed9 s\u00e2u. K2<\/sub>O d\u1ec5 ti\u00eau \u1edf m\u1ee9c ngh\u00e8o \u0111\u1ebfn trung b\u00ecnh.<\/p>\n

– X\u00e1c \u0111\u1ecbnh th\u1eddi \u0111i\u1ec3m b\u00f3n th\u00fac: <\/strong><\/p>\n

Th\u1eddi \u0111i\u1ec3m r\u1ec5 c\u00e1m ph\u00e1t tri\u1ec3n manh nh\u1ea5t (15\/6\/2018). B\u00f3n ph\u00e2n d\u1ef1a theo quan s\u00e1t \u1ea3nh r\u1ec5 cho sinh tr\u01b0\u1edfng t\u1ed1t nh\u1ea5t v\u00e0 th\u1ea5p nh\u1ea5t t\u1ea1i \u0111\u1ed1i ch\u1ee9ng (kh\u00f4ng b\u00f3n ph\u00e2n). Sinh kh\u1ed1i l\u1edbn nh\u1ea5t \u0111\u1ea1t 126,05 t\u1ea5n\/ha t\u1ea1i c\u00f4ng th\u1ee9c 200 g NPK\/c\u00e2y b\u00f3n d\u1ef1a v\u00e0o quan s\u00e1t \u1ea3nh r\u1ec5, th\u1ea5p nh\u1ea5t t\u1ea1i \u0111\u1ed1i ch\u1ee9ng, ch\u1ec9 \u0111\u1ea1t 43,72 t\u1ea5n\/ha.<\/p>\n

– X\u00e1c \u0111\u1ecbnh <\/strong>nhu c\u1ea7u ph\u00e2n b\u00f3n<\/strong>: <\/strong><\/p>\n

B\u00f3n ph\u00e2n d\u1ef1a theo dinh d\u01b0\u1ee1ng trong \u0111\u1ea5t v\u00e0 trong l\u00e1 c\u00f3 \u1ea3nh h\u01b0\u1edfng r\u00f5 r\u00e0ng \u0111\u1ebfn sinh tr\u01b0\u1edfng Keo tai t\u01b0\u1ee3ng 2 v\u00e0 4\u00a0 n\u0103m tu\u1ed5i. Th\u00ed nghi\u1ec7m b\u00f3n th\u00fac theo nhu c\u1ea7u c\u00f3 sinh tr\u01b0\u1edfng v\u00e0 sinh kh\u1ed1i l\u1edbn nh\u1ea5t: 2 n\u0103m tu\u1ed5i: D1,3 = 10 cm t\u1ea1i l\u1eadp \u0111\u1ecba A v\u00e0 8,9 cm t\u1ea1i l\u1eadp \u0111\u1ecba B; Hvn = 7,7 m t\u1ea1i l\u1eadp \u0111\u1ecba A v\u00e0 7,9 m t\u1ea1i l\u1eadp \u0111\u1ecba B; AGB = 44,04 t\u1ea5n\/ha t\u1ea1i l\u1eadp \u0111\u1ecba A v\u00e0 33,80 t\u1ea5n\/ha t\u1ea1i l\u1eadp \u0111\u1ecba B. T\u1ea1i 4 n\u0103m tu\u1ed5i D1,3 = 19,6 cm t\u1ea1i l\u1eadp \u0111\u1ecba A v\u00e0 13,2 cm t\u1ea1i l\u1eadp \u0111\u1ecba B; Hvn = 15,2 m t\u1ea1i l\u1eadp \u0111\u1ecba A v\u00e0 14,1 m t\u1ea1i l\u1eadp \u0111\u1ecba B; v\u00e0 AGB = 198,87 t\u1ea5n\/ha t\u1ea1i l\u1eadp \u0111\u1ecba A v\u00e0 81,68 t\u1ea5n\/ha t\u1ea1i l\u1eadp \u0111\u1ecba B.<\/p>\n

– Nghi\u00ean c\u1ee9u c\u00e1c y\u1ebfu t\u1ed1 c\u01a1 b\u1ea3n ho\u00e0n tr\u1ea3 dinh d\u01b0\u1ee1ng cho r\u1eebng tr\u1ed3ng <\/strong>Keo tai t\u01b0\u1ee3ng<\/strong><\/p>\n

L\u01b0\u1ee3ng v\u1eadt r\u01a1i r\u1ee5ng l\u1edbn nh\u1ea5t v\u00e0o m\u00f9a Thu-\u0110\u00f4ng (4,06 g\/m2<\/sup>\/ng\u00e0y) v\u00e0 th\u1ea5p nh\u1ea5t v\u00e0o m\u00f9a Xu\u00e2n-H\u00e8 (1,10 g\/m2<\/sup>\/ng\u00e0y). T\u1ed5ng l\u01b0\u1ee3ng v\u1eadt r\u01a1i r\u1ee5ng c\u1ee7a r\u1eebng Keo tai t\u01b0\u1ee3ng 2 n\u0103m tu\u1ed5i l\u00e0 6,69 t\u1ea5n\/ha\/n\u0103m. T\u1ed1c \u0111\u1ed9 ph\u00e2n h\u1ee7y v\u1eadt r\u01a1i r\u1ee5ng \u0111\u1ea1t 126 %\/n\u0103m. Kho\u00e1ng ch\u1ea5t c\u00f3 trong v\u1eadt r\u01a1i r\u1ee5ng cao nh\u1ea5t 0,523 % thu\u1ed9c v\u1ec1 N, ti\u1ebfp \u0111\u1ebfn l\u00e0 P (0,326 %) v\u00e0 K (0,185 %). Kho\u00e1ng ch\u1ea5t c\u00f3 trong r\u1ec5 c\u00e1m ch\u1ebft cao nh\u1ea5t 0,285 % thu\u1ed9c v\u1ec1 P, ti\u1ebfp \u0111\u1ebfn l\u00e0 N (0,231 %) v\u00e0 K (0,135 %). V\u1eadt r\u01a1i r\u1ee5ng tr\u1ea3 l\u1ea1i cho \u0111\u1ea5t 34,98 kg N\/ha; 21,80 kg P\/ha; v\u00e0 12,38 kg K\/ha; R\u1ec5 c\u00e1m ph\u00e2n h\u1ee7y tr\u1ea3 l\u1ea1i cho \u0111\u1ea5t 19,97 kg N\/ha; 22,53 kg P\/ha; v\u00e0 10,75 kg K\/ha trong m\u1ed9t n\u0103m t\u1ea1i r\u1eebng Keo tai t\u01b0\u1ee3ng 2 tu\u1ed5i.<\/p>\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:<\/p>\n

http:\/\/luanvan.moet.edu.vn\/?page=1.32&view=42210<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

T\u00ean \u0111\u1ec1 t\u00e0i lu\u1eadn \u00e1n: Nghi\u00ean c\u1ee9u gi\u1ea3i ph\u00e1p b\u00f3n ph\u00e2n h\u1ee3p l\u00fd cho r\u1eebng tr\u1ed3ng Keo tai t\u01b0\u1ee3ng (Acacia mangium Willd) \u1edf Qu\u1ea3ng Ninh Nga\u0300nh \u0111a\u0300o ta\u0323o: L\u00e2m sinh: \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\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: V\u0169 Ti\u1ebfn L\u00e2m H\u1ecd v\u00e0 t\u00ean gi\u00e1o vi\u00ean h\u01b0\u1edbng d\u1eabn khoa h\u1ecdc: \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 […]<\/p>\n","protected":false},"author":17,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[103,42,66],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/22765"}],"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=22765"}],"version-history":[{"count":3,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/22765\/revisions"}],"predecessor-version":[{"id":22778,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/22765\/revisions\/22778"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=22765"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=22765"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=22765"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}