{"id":9910,"date":"2012-12-12T05:43:13","date_gmt":"2012-12-11T22:43:13","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2012\/12\/anh-huong-cua-mat-do-va-phan-bon-den-nang-suat-rung-trong-keo-lai-95-nam-tuoi-o-quang-tri\/"},"modified":"2015-05-19T12:17:15","modified_gmt":"2015-05-19T05:17:15","slug":"anh-huong-cua-mat-do-va-phan-bon-den-nang-suat-rung-trong-keo-lai-95-nam-tuoi-o-quang-tri","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/anh-huong-cua-mat-do-va-phan-bon-den-nang-suat-rung-trong-keo-lai-95-nam-tuoi-o-quang-tri\/","title":{"rendered":"\u1ea2nh h\u01b0\u1edfng c\u1ee7a m\u1eadt \u0111\u1ed9 v\u00e0 ph\u00e2n b\u00f3n \u0111\u1ebfn n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng Keo lai 9,5 n\u0103m tu\u1ed5i \u1edf Qu\u1ea3ng Tr\u1ecb"},"content":{"rendered":"<p><strong>Nguy\u1ec5n Huy S\u01a1n, Ho\u00e0ng Minh T\u00e2m<\/strong><\/p>\n<p><em>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n<p><strong>T\u00d3M T\u1eaeT<\/strong><\/p>\n<p>Tr\u1ed3ng r\u1eebng th\u00e2m canh nh\u1eb1m n\u00e2ng cao n\u0103ng su\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng r\u1eebng hi\u1ec7n nay l\u00e0 v\u1ea5n \u0111\u1ec1 \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi quan t\u00e2m. C\u00e1c d\u00f2ng Keo lai BV10, BV16 v\u00e0 BV32 l\u00e0 nh\u1eefng gi\u1ed1ng ti\u1ebfn b\u1ed9 k\u1ef9 thu\u1eadt \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 nghi\u00ean c\u1ee9u m\u1ee9c \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng c\u1ee7a m\u1eadt \u0111\u1ed9 v\u00e0 ph\u00e2n b\u00f3n \u0111\u1ebfn kh\u1ea3 n\u0103ng sinh tr\u01b0\u1edfng c\u0169ng nh\u01b0 n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng sau 9,5 n\u0103m tu\u1ed5i \u1edf \u0110\u00f4ng H\u00e0 &#8211; Qu\u1ea3ng Tr\u1ecb. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y m\u1eadt \u0111\u1ed9 tr\u1ed3ng ban \u0111\u1ea7u, ph\u00e2n b\u00f3n l\u00f3t v\u00e0 b\u00f3n th\u00fac n\u0103m th\u1ee9 2 c\u00f3 \u1ea3nh h\u01b0\u1edfng ch\u01b0a r\u00f5 \u0111\u1ebfn t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a r\u1eebng tr\u1ed3ng Keo lai 9,5 n\u0103m tu\u1ed5i. V\u00ec \u1edf giai \u0111o\u1ea1n 9,5 n\u0103m r\u1eebng tr\u1ed3ng \u0111\u00e3 qu\u00e1 th\u00e0nh th\u1ee5c c\u00f4ng ngh\u1ec7 so v\u1edbi m\u1ee5c ti\u00eau kinh doanh g\u1ed7 nh\u1ecf chu k\u1ef3 7 n\u0103m, n\u00ean c\u00e1c c\u00e1 th\u1ec3 trong qu\u1ea7n th\u1ec3 c\u00f3 s\u1ef1 c\u1ea1nh tranh nhau gay g\u1eaft v\u1ec1 kh\u00f4ng gian dinh d\u01b0\u1ee1ng d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng t\u1ec9a th\u01b0a t\u1ef1 nhi\u00ean r\u1ea5t m\u1ea1nh, t\u1ef7 l\u1ec7 s\u1ed1ng ch\u1ec9 c\u00f2n t\u1eeb 44-60% so v\u1edbi m\u1eadt \u0111\u1ed9 tr\u1ed3ng ban \u0111\u1ea7u. \u1ede giai \u0111o\u1ea1n 9,5 n\u0103m tu\u1ed5i, m\u1eadt \u0111\u1ed9 hi\u1ec7n t\u1ea1i c\u00f3 \u1ea3nh h\u01b0\u1edfng kh\u00e1 r\u00f5 \u0111\u1ebfn kh\u1ea3 n\u0103ng sinh tr\u01b0\u1edfng c\u0169ng nh\u01b0 n\u0103ng su\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng r\u1eebng, \u1edf nh\u1eefng c\u00f4ng th\u1ee9c m\u1eadt \u0111\u1ed9 hi\u1ec7n t\u1ea1i th\u1ea5p nh\u1ea5t t\u1eeb 722-738 c\u00e2y\/ha th\u00ec c\u00f3 kh\u1ea3 n\u0103ng sinh tr\u01b0\u1edfng D<sub>1,3<\/sub> cao nh\u1ea5t v\u00e0 \u0111\u1ea1t trung b\u00ecnh t\u1eeb 17,22-17,49cm, s\u1ed1 c\u00e2y c\u00f3 D<sub>1,3<\/sub>\u226518cm chi\u1ebfm 42,55-43,75%, nh\u01b0ng n\u0103ng su\u1ea5t g\u1ed7 c\u00e2y \u0111\u1ee9ng l\u1ea1i kh\u00f4ng cao. Ng\u01b0\u1ee3c l\u1ea1i, \u1edf nh\u1eefng c\u00f4ng th\u1ee9c c\u00f3 m\u1eadt \u0111\u1ed9 cao nh\u1ea5t t\u1eeb 968-999 c\u00e2y\/ha th\u00ec cho n\u0103ng su\u1ea5t g\u1ed7 c\u00e2y \u0111\u1ee9ng cao nh\u1ea5t, nh\u01b0ng kh\u1ea3 n\u0103ng sinh tr\u01b0\u1edfng D<sub>1,3<\/sub> l\u1ea1i th\u1ea5p nh\u1ea5t v\u00e0 t\u1ef7 l\u1ec7 s\u1ed1 c\u00e2y c\u00f3 D<sub>1,3<\/sub>\u226518cm kh\u00e1 th\u1ea5p, ch\u1ec9 chi\u1ebfm t\u1eeb 15-26%. V\u00ec v\u1eady, c\u1ea7n ph\u1ea3i khai th\u00e1c ho\u1eb7c t\u1ec9a th\u01b0a ngay, n\u1ebfu \u00e1p d\u1ee5ng bi\u1ec7n ph\u00e1p t\u1ec9a th\u01b0a th\u00ec m\u1eadt \u0111\u1ed9 \u0111\u1ec3 l\u1ea1i t\u1eeb 400-500 c\u00e2y\/ha \u0111\u1ec3 kinh doanh g\u1ed7 l\u1edbn l\u00e0 ph\u00f9 h\u1ee3p.<\/p>\n<p><strong>T\u1eeb kh\u00f3a<\/strong>: R\u1eebng tr\u1ed3ng Keo lai, N\u0103ng su\u1ea5t, Ph\u00e2n b\u00f3n, M\u1eadt \u0111\u1ed9, Qu\u1ea3ng Tr\u1ecb<\/p>\n<p><strong>\u0110\u1eb6T V\u1ea4N \u0110\u1ec0<\/strong><\/p>\n<p>Tr\u1ed3ng r\u1eebng th\u00e2m canh nh\u1eb1m n\u00e2ng cao n\u0103ng su\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng r\u1eebng hi\u1ec7n nay l\u00e0 v\u1ea5n \u0111\u1ec1 \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi quan t\u00e2m. Tuy tr\u1ed3ng r\u1eebng th\u00e2m canh v\u00e0 th\u00e2m canh r\u1eebng tr\u1ed3ng l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt l\u00e2m sinh \u0111\u01b0\u1ee3c ph\u1ed1i h\u1ee3p v\u1edbi nhau m\u1ed9t c\u00e1ch li\u00ean ho\u00e0n, nh\u01b0ng ph\u1ea3i x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt m\u0169i nh\u1ecdn \u0111\u1ec3 \u0111\u1ea7u t\u01b0 th\u00edch h\u1ee3p th\u00ec m\u1edbi t\u1ea1o ra s\u1ef1 \u0111\u1ed9t ph\u00e1 v\u1ec1 n\u0103ng su\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng r\u1eebng tr\u1ed3ng. Trong ph\u1ea1m vi m\u1ed9t ph\u1ea7n n\u1ed9i dung nghi\u00ean c\u1ee9u c\u1ee7a \u0111\u1ec1 t\u00e0i khoa h\u1ecdc c\u1ea5p Nh\u00e0 n\u01b0\u1edbc (KC.06.05.NN) giai \u0111o\u1ea1n 2001-2005 th\u1ef1c hi\u1ec7n t\u1ea1i Trung t\u00e2m Khoa h\u1ecdc S\u1ea3n xu\u1ea5t L\u00e2m nghi\u1ec7p B\u1eafc Trung B\u1ed9 \u0111\u00e3 k\u1ebf th\u1eeba c\u00e1c gi\u1ed1ng Keo lai l\u00e0 gi\u1ed1ng Qu\u00f4\u0301c gia g\u1ed3m c\u00e1c d\u00f2ng v\u00f4 t\u00ednh BV10, BV16 v\u00e0 BV32, bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt m\u0169i nh\u1ecdn \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 m\u1eadt \u0111\u1ed9 v\u00e0 ph\u00e2n b\u00f3n. Nh\u01b0ng do th\u1eddi gian th\u1ef1c hi\u1ec7n \u0111\u1ec1 t\u00e0i c\u00f3 h\u1ea1n n\u00ean b\u00e1o c\u00e1o t\u1ed5ng k\u1ebft \u0111\u1ec1 t\u00e0i khi k\u1ebft th\u00fac ch\u01b0a \u0111\u00e1nh gi\u00e1 \u0111\u01b0\u1ee3c m\u1ee9c \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng c\u1ee7a m\u1eadt \u0111\u1ed9 c\u0169ng nh\u01b0 ph\u00e2n b\u00f3n l\u00f3t v\u00e0 b\u00f3n th\u00fac n\u0103m th\u1ee9 2 t\u1edbi kh\u1ea3 n\u0103ng sinh tr\u01b0\u1edfng v\u00e0 n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng \u1edf giai \u0111o\u1ea1n cu\u1ed1i chu k\u1ef3 kinh doanh. V\u00ec v\u1eady, b\u00e0i vi\u00ea\u0301t n\u00e0y xin gi\u1edbi thi\u1ec7u b\u1ed5 sung k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u v\u1ec1 s\u1ef1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a m\u1eadt \u0111\u1ed9 v\u00e0 ph\u00e2n b\u00f3n t\u1edbi kh\u1ea3 n\u0103ng sinh tr\u01b0\u1edfng v\u00e0 n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng Keo lai sau 9,5 n\u0103m tr\u1ed3ng (11\/2002-6\/2012) \u0111\u1ec3 l\u00e0m c\u01a1 s\u1edf tham kh\u1ea3o v\u00e0 \u00e1p d\u1ee5ng trong s\u1ea3n xu\u1ea5t \u1edf nh\u1eefng n\u01a1i c\u00f3 \u0111i\u1ec1u ki\u1ec7n l\u00e2\u0323p \u0111i\u0323a t\u01b0\u01a1ng t\u1ef1.<\/p>\n<p><em>(T\u1ea1p ch\u00ed Khoa h\u1ecdc L\u00e2m nghi\u1ec7p s\u1ed1 3 n\u0103m 2012, trang 2323-2332)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p><!--[if gte mso 9]><xml>\n<w:WordDocument>\n<w:View>Normal<\/w:View>\n<w:Zoom>0<\/w:Zoom>\n<w:PunctuationKerning\/>\n<w:ValidateAgainstSchemas\/>\n<w:SaveIfXMLInvalid>false<\/w:SaveIfXMLInvalid>\n<w:IgnoreMixedContent>false<\/w:IgnoreMixedContent>\n<w:AlwaysShowPlaceholderText>false<\/w:AlwaysShowPlaceholderText>\n<w:Compatibility>\n<w:BreakWrappedTables\/>\n<w:SnapToGridInCell\/>\n<w:WrapTextWithPunct\/>\n<w:UseAsianBreakRules\/>\n<w:DontGrowAutofit\/>\n<\/w:Compatibility>\n<w:BrowserLevel>MicrosoftInternetExplorer4<\/w:BrowserLevel>\n<\/w:WordDocument>\n<\/xml><![endif]--><\/p>\n<div align=\"justify\">\n<span style=\"font-size: 10pt; font-family: Arial\">Tr\u1ed3ng r\u1eebng th&acirc;m canh nh\u1eb1m n&acirc;ng cao n\u0103ng su\u1ea5t v&agrave;<br \/>\nch\u1ea5t l\u01b0\u1ee3ng r\u1eebng hi\u1ec7n nay l&agrave; v\u1ea5n \u0111\u1ec1 \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi quan t&acirc;m. C&aacute;c d&ograve;ng Keo<br \/>\nlai BV10, BV16 v&agrave; BV32 l&agrave; nh\u1eefng gi\u1ed1ng ti\u1ebfn b\u1ed9 k\u1ef9 thu\u1eadt \u0111&atilde; \u0111\u01b0\u1ee3c c&ocirc;ng nh\u1eadn v&agrave;<br \/>\n\u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 nghi&ecirc;n c\u1ee9u m\u1ee9c \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng c\u1ee7a m\u1eadt \u0111\u1ed9 v&agrave; ph&acirc;n b&oacute;n \u0111\u1ebfn kh\u1ea3 n\u0103ng<br \/>\nsinh tr\u01b0\u1edfng c\u0169ng nh\u01b0 n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng sau 9,5 n\u0103m tu\u1ed5i \u1edf \u0110&ocirc;ng H&agrave; &#8211; Qu\u1ea3ng<br \/>\nTr\u1ecb.<\/span>\n<\/div>\n<p><!--[if gte mso 9]><xml>\n<w:LatentStyles DefLockedState=\"false\" LatentStyleCount=\"156\">\n<\/w:LatentStyles>\n<\/xml><![endif]--><!--[if gte mso 10]>\n\n\n<style>\n\/* Style Definitions *\/\ntable.MsoNormalTable\n{mso-style-name:\"Table Normal\";\nmso-tstyle-rowband-size:0;\nmso-tstyle-colband-size:0;\nmso-style-noshow:yes;\nmso-style-parent:\"\";\nmso-padding-alt:0cm 5.4pt 0cm 5.4pt;\nmso-para-margin:0cm;\nmso-para-margin-bottom:.0001pt;\nmso-pagination:widow-orphan;\nfont-size:10.0pt;\nfont-family:\"Times New Roman\";\nmso-ansi-language:#0400;\nmso-fareast-language:#0400;\nmso-bidi-language:#0400;}\n<\/style>\n\n\n<![endif]--><\/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\/9910"}],"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=9910"}],"version-history":[{"count":2,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9910\/revisions"}],"predecessor-version":[{"id":15205,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9910\/revisions\/15205"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9910"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9910"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9910"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}