{"id":9752,"date":"2012-02-20T02:27:31","date_gmt":"2012-02-19T19:27:31","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2012\/02\/nghien-cuu-bien-phap-ky-thuat-nang-cao-nang-suat-rung-trong-tren-dat-bazan-thoai-hoa-tai-tay-nguyen\/"},"modified":"2013-10-06T09:02:36","modified_gmt":"2013-10-06T02:02:36","slug":"nghien-cuu-bien-phap-ky-thuat-nang-cao-nang-suat-rung-trong-tren-dat-bazan-thoai-hoa-tai-tay-nguyen","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/nghien-cuu-bien-phap-ky-thuat-nang-cao-nang-suat-rung-trong-tren-dat-bazan-thoai-hoa-tai-tay-nguyen\/","title":{"rendered":"Nghi\u00ean c\u1ee9u bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt n\u00e2ng cao n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng tr\u00ean \u0111\u1ea5t bazan tho\u00e1i h\u00f3a t\u1ea1i T\u00e2y Nguy\u00ean"},"content":{"rendered":"<p> <strong>H\u1ed3 \u0110\u1ee9c Soa<\/strong> <\/p>\n<p> <em>Trung t\u00e2m L\u00e2m nghi\u1ec7p Nhi\u1ec7t \u0111\u1edbi<\/em> <\/p>\n<p> <strong>T\u00d3M T\u1eaeT <\/strong> <\/p>\n<p> \u0110\u1ea5t bazan tho\u00e1i h\u00f3a l\u00e0 m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng ch\u1ee7 y\u1ebfu \u0111\u1ec3 tr\u1ed3ng r\u1eebng s\u1ea3n xu\u1ea5t v\u00f9ng cao nguy\u00ean trung ph\u1ea7n Vi\u1ec7t Nam. V\u1edbi nhu c\u1ea7u v\u1ec1 g\u1ed7 v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb r\u1eebng tr\u1ed3ng v\u00e0 l\u1ee3i \u00edch kinh t\u1ebf t\u1eeb vi\u1ec7c tr\u1ed3ng r\u1eebng l\u1ea5y g\u1ed7 \u0111em l\u1ea1i ng\u00e0y c\u00e0ng nhi\u1ec1u, n\u00ean vi\u1ec7c r\u1eebng tr\u1ed3ng \u0111\u00e3 v\u00e0 \u0111ang \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng t\u1ea1i nhi\u1ec1u c\u01a1 s\u1edf s\u1ea3n xu\u1ea5t kinh doanh L\u00e2m nghi\u1ec7p v\u00e0 nh\u00e2n d\u00e2n \u0111\u1ecba ph\u01b0\u01a1ng. Tuy nhi\u00ean do \u0111\u1ea5t \u0111ai b\u1ecb tho\u00e1i h\u00f3a ngh\u00e8o dinh d\u01b0\u1ee1ng v\u00e0 kh\u00ed h\u1eadu kh\u1eafc nghi\u1ec7t c\u1ed9ng t\u1eadp qu\u00e1n s\u1ea3n xu\u1ea5t qu\u1ea3ng canh l\u1ea1c h\u1eadu, kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn v\u00e0 \u1ee9ng d\u1ee5ng hi\u1ec7u qu\u1ea3 c\u00e1c ti\u1ebfn b\u1ed9 k\u0129 thu\u1eadt c\u00f2n r\u1ea5t h\u1ea1n ch\u1ebf, v\u00ec v\u1eady n\u0103ng su\u1ea5t c\u00e2y tr\u1ed3ng \u0111\u1ea1t r\u1ea5t th\u1ea5p (t\u1eeb 8-10m<sup>3<\/sup>\/ha\/n\u0103m), ch\u01b0a ph\u1ea3n \u00e1nh \u0111\u00fang ti\u1ec1n n\u0103ng th\u1ef1c t\u1ebf. Ch\u00ednh v\u00ec v\u1eady vi\u1ec7c nghi\u00ean c\u1ee9u c\u00e1c bi\u1ec7n ph\u00e1p k\u0129 thu\u1eadt n\u00e2ng cao n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng tr\u00ean \u0111\u1ea5t bazan tho\u00e1i h\u00f3a g\u00f3p ph\u1ea7n t\u1ea1o vi\u1ec7c l\u00e0m, t\u0103ng thu nh\u1eadp, c\u1ea3i thi\u1ec7n \u0111\u1eddi s\u1ed1ng nh\u00e2n d\u00e2n trong v\u00f9ng l\u00e0 v\u1ea5n \u0111\u1ec1 c\u1ea5p thi\u1ebft.\u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 tr\u00ean, \u0111\u1ec1 t\u00e0i \u0111\u00e3 ti\u1ebfn h\u00e0nh c\u00e1c kh\u1ea3o nghi\u1ec7m l\u1ef1a ch\u1ecdn m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y tr\u1ed3ng sinh tr\u01b0\u1edfng nhanh, cho n\u0103ng su\u1ea5t cao ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n l\u1eadp \u0111\u1ecba v\u00e0 nhu c\u1ea7u v\u1ec1 g\u1ed7 c\u1ee7a \u0111\u1ecba ph\u01b0\u01a1ng. Qua 3 n\u0103m nghi\u00ean c\u1ee9u, \u0111\u1ec1 t\u00e0i \u0111\u00e3 l\u1ef1a ch\u1ecdn \u0111\u01b0\u1ee3c t\u1eadp \u0111o\u00e0n c\u00e2y tr\u1ed3ng r\u1eebng tr\u00ean \u0111\u1ea5t bazan tho\u00e1i h\u00f3a: C\u00e2y tr\u1ed3ng l\u1ea5y g\u1ed7 nguy\u00ean li\u1ec7u c\u00f4ng nghi\u1ec7p l\u00e0 c\u00e1c lo\u00e0i Keo lai <em>(Acacia mangium x Acacia auriculiformis)<\/em>, B\u1ea1ch \u0111\u00e0n ur\u00f4 <em>(E. urophylla);<\/em> C\u00e2y tr\u1ed3ng cung c\u1ea5p g\u1ed7 l\u1edbn l\u00e0 Sao \u0111en (<em>Hopea odorata<\/em>), Tr\u00e1m tr\u1eafng (<em>Canarium album)<\/em>, V\u00ean v\u00ean (<em>Anisoptera cochinchinesis<\/em>), D\u1ea7u r\u00e1i (<em>Dipterocarpus alatus<\/em>).Bi\u1ec7n ph\u00e1p ky\u0303 thu\u1eadt th\u00e2m canh nh\u01b0 l\u00e0m \u0111\u1ea5t b\u1eb1ng c\u00e0y ng\u1ea7m theo r\u1ea1ch, b\u00f3n ph\u00e2n NPK, ch\u0103m s\u00f3c t\u1ec9a c\u00e0nh, t\u1ec9a th\u01b0a th\u00edch h\u1ee3p \u0111\u00e3 n\u00e2ng cao n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng l\u00ean r\u00f5 r\u1ec7t. N\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng l\u1ea5y g\u1ed7 nguy\u00ean li\u1ec7u t\u0103ng 50-70% (\u0111\u1ea1t 15-18m<sup>3<\/sup>\/ha n\u0103m), c\u00e1c lo\u00e0i c\u00e2y tr\u1ed3ng cung c\u1ea5p g\u1ed7 l\u1edbn s\u1ed1ng l\u00e2u n\u0103m v\u00e0 c\u00f3 t\u00e1c d\u1ee5ng ph\u00f2ng h\u1ed9 b\u1ec1n v\u1eefng, sinh tr\u01b0\u1edfng nhanh v\u1ec1 D \u0111\u1ea1t 1,5-2,5cm\/n\u0103m, H \u0111\u1ea1t 1,5-2m\/n\u0103m, \u0111\u00e1p \u1ee9ng m\u1ee5c ti\u00eau tr\u1ed3ng r\u1eebng cung c\u1ea5p g\u1ed7 l\u1edbn. <\/p>\n<p> <strong>T\u1eeb kh\u00f3a:<\/strong> \u0110\u1ea5t bazan tho\u00e1i h\u00f3a; T\u00e2y Nguy\u00ean; N\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng. <\/p>\n<p> <strong>\u0110\u1eb6T V\u1ea4N \u0110\u1ec0<\/strong> <\/p>\n<p> T\u00e2y Nguy\u00ean g\u1ed3m 5 t\u1ec9nh, di\u1ec7n t\u00edch h\u01a1n 5 tri\u1ec7u ha, trong \u0111\u00f3 di\u1ec7n t\u00edch r\u1eebng 2,97 tri\u1ec7u ha chi\u1ebfm g\u1ea7n 60%. D\u00e2n s\u1ed1 trong v\u00f9ng kho\u1ea3ng 4,75 tri\u1ec7u ng\u01b0\u1eddi, h\u01a1n 85% sinh s\u1ed1ng ch\u1ee7 y\u1ebfu b\u1eb1ng s\u1ea3n xu\u1ea5t N\u00f4ng L\u00e2m nghi\u1ec7p, trong \u0111\u00f3 c\u00f3 tr\u00ean 40% l\u00e0 \u0111\u1ed3ng b\u00e0o c\u00e1c d\u00e2n t\u1ed9c c\u00f3 tr\u00ecnh \u0111\u1ed9 v\u0103n h\u00f3a v\u00e0 t\u1eadp qu\u00e1n, t\u1eadp t\u1ee5c r\u1ea5t kh\u00e1c nhau, t\u1ef7 l\u1ec7 d\u00e2n s\u1ed1 h\u00e0ng n\u0103m t\u0103ng l\u00ean r\u1ea5t nhanh, do \u0111\u00f3 nhu c\u1ea7u v\u1ec1 l\u01b0\u01a1ng th\u1ef1c ph\u1ea9m v\u00e0 \u0111\u1ea5t \u0111ai s\u1ea3n su\u1ea5t ng\u00e0y c\u00e0ng nhi\u1ec1u. T\u1eeb \u0111\u00f3 n\u1ea3y sinh l\u1ea5n chi\u1ebfm \u0111\u1ea5t r\u1eebng l\u00e0m n\u01b0\u01a1ng r\u1eaby, khai th\u00e1c s\u1eed d\u1ee5ng g\u1ed7 tr\u00e1i ph\u00e9p,&#8230; l\u00e0m cho t\u00e0i nguy\u00ean r\u1eebng tr\u01b0\u1edbc \u0111\u00e2y v\u1ed1n gi\u00e0u c\u00f3 v\u00e0 \u0111a d\u1ea1ng sinh h\u1ecdc \u0111\u00e3 v\u00e0 \u0111ang c\u1ea1n ki\u1ec7t.  <\/p>\n<p> \u0110\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u v\u1ec1 g\u1ed7 ng\u00e0y c\u00e0ng t\u0103ng, vi\u1ec7c tr\u1ed3ng r\u1eebng tuy \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh nhi\u1ec1u n\u0103m qua, nh\u01b0ng do t\u1eadp qu\u00e1n canh t\u00e1c l\u1ea1c h\u1eadu c\u1ee7a d\u00e2n \u0111\u1ecba ph\u01b0\u01a1ng n\u00ean n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng th\u1ea5p, hi\u1ec7u qu\u1ea3 kinh t\u1ebf ch\u01b0a cao. Trong khi \u0111\u00f3 \u0111\u1ea5t tr\u1ed1ng tr\u1ecdc hoang h\u00f3a b\u1ecb x\u00f3i m\u00f2n, tho\u00e1i h\u00f3a dinh d\u01b0\u1ee1ng di\u1ec5n ra nhanh ch\u00f3ng, v\u00ec v\u1eady s\u1ea3n xu\u1ea5t N\u00f4ng &#8211; L\u00e2m nghi\u1ec7p v\u00e0 \u0111\u1eddi s\u1ed1ng nh\u00e2n d\u00e2n, \u0111\u1eb7c bi\u1ec7t \u1edf v\u00f9ng s\u00e2u xa \u0111\u00e3 kh\u00f3 kh\u0103n l\u1ea1i c\u00e0ng kh\u00f3 kh\u0103n h\u01a1n. <\/p>\n<p> Xu\u1ea5t ph\u00e1t t\u1eeb th\u1ef1c t\u1ebf tr\u00ean, vi\u1ec7c nghi\u00ean c\u1ee9u tri\u1ec3n khai \u1ee9ng d\u1ee5ng c\u00e1c ti\u1ebfn b\u1ed9 k\u0129 thu\u1eadt t\u0103ng n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng l\u00e0 t\u1ea1o th\u00eam \u0111\u01b0\u1ee3c vi\u1ec7c l\u00e0m, gi\u1ea3m \u00e1p l\u1ef1c v\u1ec1 \u0111\u1ea5t canh t\u00e1c, \u0111\u00e1p \u1ee9ng k\u1ecbp th\u1eddi nhu c\u1ea7u v\u1ec1 g\u1ed7 v\u00e0 l\u1ee3i \u00edch nhi\u1ec1u m\u1eb7t kh\u00e1c c\u1ee7a x\u00e3 h\u1ed9i, g\u00f3p ph\u1ea7n t\u1eebng b\u01b0\u1edbc \u1ed5n \u0111\u1ecbnh \u0111\u1eddi s\u1ed1ng nh\u00e2n d\u00e2n trong khu v\u1ef1c l\u00e0 v\u1ea5n \u0111\u1ec1 c\u1ea5p thi\u1ebft. <\/p>\n<p> <em>(K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u khoa h\u1ecdc c\u00f4ng ngh\u1ec7 giai \u0111o\u1ea1n 2006-2010, trang 162-170)<\/em> <\/p>\n","protected":false},"excerpt":{"rendered":"<p align=\"justify\">\n<span style=\"font-family: Arial; font-size: 10pt\">\u0110\u1ea5t bazan tho&aacute;i h&oacute;a l&agrave; m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng ch\u1ee7 y\u1ebfu \u0111\u1ec3 tr\u1ed3ng r\u1eebng s\u1ea3n xu\u1ea5t v&ugrave;ng cao nguy&ecirc;n trung ph\u1ea7n Vi\u1ec7t Nam. V\u1edbi nhu c\u1ea7u v\u1ec1 g\u1ed7 v&agrave; c&aacute;c s\u1ea3n ph\u1ea9m t\u1eeb r\u1eebng tr\u1ed3ng v&agrave; l\u1ee3i &iacute;ch kinh t\u1ebf t\u1eeb vi\u1ec7c tr\u1ed3ng r\u1eebng l\u1ea5y g\u1ed7 \u0111em l\u1ea1i ng&agrave;y c&agrave;ng nhi\u1ec1u, n&ecirc;n vi\u1ec7c r\u1eebng tr\u1ed3ng \u0111&atilde; v&agrave; \u0111ang \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng t\u1ea1i nhi\u1ec1u c\u01a1 s\u1edf s\u1ea3n xu\u1ea5t kinh doanh L&acirc;m nghi\u1ec7p v&agrave; nh&acirc;n d&acirc;n \u0111\u1ecba ph\u01b0\u01a1ng.<\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[21],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9752"}],"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=9752"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9752\/revisions"}],"predecessor-version":[{"id":11204,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9752\/revisions\/11204"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9752"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9752"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9752"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}