{"id":9878,"date":"2012-08-29T02:26:26","date_gmt":"2012-08-28T19:26:26","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2012\/08\/anh-huong-cua-phan-bon-va-anh-sang-den-sinh-truong-cua-cay-re-gung-trong-giai-doan-vuon-uom\/"},"modified":"2015-05-19T13:29:25","modified_gmt":"2015-05-19T06:29:25","slug":"anh-huong-cua-phan-bon-va-anh-sang-den-sinh-truong-cua-cay-re-gung-trong-giai-doan-vuon-uom","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/anh-huong-cua-phan-bon-va-anh-sang-den-sinh-truong-cua-cay-re-gung-trong-giai-doan-vuon-uom\/","title":{"rendered":"\u1ea2nh h\u01b0\u1edfng c\u1ee7a ph\u00e2n b\u00f3n v\u00e0 \u00e1nh s\u00e1ng \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y Re g\u1eebng trong giai \u0111o\u1ea1n v\u01b0\u1eddn \u01b0\u01a1m"},"content":{"rendered":"<p><strong>Nguy\u1ec5n Huy S\u01a1n<\/strong><\/p>\n<p><em>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n<p><strong>Nguy\u1ec5n V\u0103n Ti\u1ebfn<\/strong><\/p>\n<p><em>C\u1ee5c Ki\u1ec3m L\u00e2m<\/em><\/p>\n<p><strong>T\u00d3M T\u1eaeT<\/strong><\/p>\n<p>Re g\u1eebng (<em>Cinnamomum obtusifolium<\/em>) l\u00e0 lo\u00e0i c\u00e2y g\u1ed7 b\u1ea3n \u0111\u1ecba, l\u00e1 r\u1ed9ng th\u01b0\u1eddng xanh, c\u00f3 gi\u00e1 tr\u1ecb c\u1ea3 v\u1ec1 kinh t\u1ebf, x\u00e3 h\u1ed9i v\u00e0 m\u00f4i tr\u01b0\u1eddng, l\u00e0 m\u1ed9t trong nh\u1eefng lo\u00e0i c\u00e2y tr\u1ed3ng r\u1eebng ch\u00ednh c\u1ee7a nhi\u1ec1u \u0111\u1ecba ph\u01b0\u01a1ng trong nh\u1eefng n\u0103m qua \u1edf Vi\u1ec7t Nam. Tuy nhi\u00ean, vi\u1ec7c tr\u1ed3ng th\u00e0nh r\u1eebng lo\u00e0i c\u00e2y n\u00e0y ch\u01b0a nhi\u1ec1u, v\u00ec c\u00f2n thi\u1ebfu m\u1ed9t s\u1ed1 c\u01a1 s\u1edf khoa h\u1ecdc t\u1eeb \u0111\u1eb7c \u0111i\u1ec3m sinh l\u00fd, sinh th\u00e1i \u0111\u1ebfn k\u1ef9 thu\u1eadt gieo \u01b0\u01a1m v\u00e0 tr\u1ed3ng r\u1eebng. V\u00ec v\u1eady, vi\u1ec7c nghi\u00ean c\u1ee9u m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m sinh l\u00fd, sinh th\u00e1i c\u1ee7a c\u00e2y con trong giai \u0111o\u1ea1n v\u01b0\u1eddn \u01b0\u01a1m l\u00e0 c\u1ea7n thi\u1ebft, nh\u1ea5t l\u00e0 nhu c\u1ea7u v\u1ec1 ph\u00e2n b\u00f3n v\u00e0 \u00e1nh s\u00e1ng. K\u1ebft qu\u1ea3 trong ph\u1ea1m vi nghi\u00ean c\u1ee9u n\u00e0y cho th\u1ea5y b\u00f3n th\u00fac b\u1eb1ng c\u00e1ch t\u01b0\u1edbi ph\u00e2n NPK (5:10:3) ho\u00e0 tan trong n\u01b0\u1edbc l\u00e3 v\u1edbi n\u1ed3ng \u0111\u1ed9 5% cho t\u1ef7 l\u1ec7 s\u1ed1ng c\u0169ng nh\u01b0 kh\u1ea3 n\u0103ng sinh tr\u01b0\u1edfng c\u1ea3 v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh g\u1ed1c v\u00e0 chi\u1ec1u cao c\u1ee7a c\u00e2y con Re g\u1eebng cao h\u01a1n b\u00f3n th\u00fac b\u1eb1ng n\u01b0\u1edbc ph\u00e2n chu\u1ed3ng ng\u00e2m ho\u1eb7c kh\u00f4ng b\u00f3n th\u00fac. Trong giai \u0111o\u1ea1n 2 th\u00e1ng \u0111\u1ea7u k\u1ec3 t\u1eeb khi gieo \u01b0\u01a1m, che s\u00e1ng 50% l\u00e0 ph\u00f9 h\u1ee3p, t\u1ef7 l\u1ec7 s\u1ed1ng v\u00e0 kh\u1ea3 n\u0103ng sinh tr\u01b0\u1edfng v\u1ec1 chi\u1ec1u cao \u1edf m\u1ee9c che s\u00e1ng n\u00e0y \u0111\u1ea1t cao nh\u1ea5t v\u1edbi c\u00e1c gi\u00e1 tr\u1ecb t\u01b0\u01a1ng \u1ee9ng l\u00e0 99,07% v\u00e0 21,56cm. Nh\u01b0ng t\u1eeb th\u00e1ng th\u1ee9 3 \u0111\u1ebfn th\u00e1ng th\u1ee9 6 che s\u00e1ng 25% l\u00e0 ph\u00f9 h\u1ee3p v\u00e0 c\u00e2y con c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng c\u0169ng nh\u01b0 kh\u1ea3 n\u0103ng sinh tr\u01b0\u1edfng chi\u1ec1u cao \u0111\u1ea1t cao nh\u1ea5t v\u1edbi c\u00e1c gi\u00e1 tr\u1ecb t\u01b0\u01a1ng \u1ee9ng l\u00e0 94,44% v\u00e0 33,26cm, sau th\u00e1ng th\u1ee9 6 c\u00f3 th\u1ec3 d\u1ee1 b\u1ecf d\u00e0n che ho\u00e0n to\u00e0n \u0111\u1ec3 hu\u1ea5n luy\u1ec7n c\u00e2y con tr\u01b0\u1edbc khi \u0111em \u0111i tr\u1ed3ng r\u1eebng.<\/p>\n<p><strong>T\u1eeb kh\u00f3a<\/strong>: C\u00e2y con Re g\u1eebng, Ph\u00e2n b\u00f3n th\u00fac v\u00e0 ch\u1ebf \u0111\u1ed9 \u00e1nh s\u00e1ng, sinh tr\u01b0\u1edfng.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u0110\u1eb6T V\u1ea4N \u0110\u1ec0<\/strong><\/p>\n<p>Re g\u1eebng (<em>Cinnamomum obtusifolium<\/em>) l\u00e0 lo\u00e0i c\u00e2y b\u1ea3n \u0111\u1ecba, l\u00e1 r\u1ed9ng th\u01b0\u1eddng xanh, g\u1ed7 l\u1edbn, c\u00f3 gi\u00e1 tr\u1ecb c\u1ea3 v\u1ec1 kinh t\u1ebf, x\u00e3 h\u1ed9i v\u00e0 m\u00f4i tr\u01b0\u1eddng, ph\u00e2n b\u1ed1 kh\u00e1 r\u1ed9ng \u1edf m\u1ed9t s\u1ed1 n\u01b0\u1edbc trong khu v\u1ef1c \u0110\u00f4ng Nam \u00c1 nh\u01b0: Vi\u1ec7t Nam, L\u00e0o v\u00e0 Campuchia. \u1ede n\u01b0\u1edbc ta, Re g\u1eebng c\u00f3 ph\u00e2n b\u1ed1 trong c\u00e1c tr\u1ea1ng th\u00e1i r\u1eebng t\u1ef1 nhi\u00ean l\u00e1 r\u1ed9ng th\u01b0\u1eddng xanh t\u1eeb Cao B\u1eb1ng, L\u1ea1ng S\u01a1n, Ph\u00fa Th\u1ecd \u0111\u1ebfn c\u00e1c t\u1ec9nh v\u00f9ng T\u00e2y Nguy\u00ean v\u00e0 t\u1ec9nh \u0110\u1ed3ng Nai, th\u01b0\u1eddng \u1edf \u0111\u1ed9 cao d\u01b0\u1edbi 800m so v\u1edbi m\u1ef1c n\u01b0\u1edbc bi\u1ec3n (Forest Inventory and Planning Institute, 2009). Re g\u1eebng l\u00e0 m\u1ed9t trong nh\u1eefng lo\u00e0i c\u00e2y tr\u1ed3ng r\u1eebng ch\u00ednh \u1edf n\u01b0\u1edbc ta trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y. Tuy nhi\u00ean, trong th\u1ef1c t\u1ebf tr\u1ed3ng r\u1eebng lo\u00e0i c\u00e2y n\u00e0y \u1edf nhi\u1ec1u \u0111\u1ecba ph\u01b0\u01a1ng tr\u01b0\u1edbc \u0111\u00e2y ch\u01b0a m\u1ea5y th\u00e0nh c\u00f4ng, c\u00f3 th\u1ec3 l\u00e0 do thi\u1ebfu c\u01a1 s\u1edf khoa h\u1ecdc t\u1eeb k\u1ef9 thu\u1eadt gieo \u01b0\u01a1m t\u1ea1o c\u00e2y con \u0111\u1ebfn tr\u1ed3ng r\u1eebng v\u00e0 ch\u0103m s\u00f3c r\u1eebng tr\u1ed3ng, nh\u1ea5t l\u00e0 v\u1ec1 \u0111\u1eb7c \u0111i\u1ec3m sinh l\u00fd, sinh th\u00e1i c\u1ee7a ch\u00fang \u1edf c\u00e1c giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n kh\u00e1c nhau. V\u00ec v\u1eady, vi\u1ec7c nghi\u00ean c\u1ee9u \u1ea3nh h\u01b0\u1edfng c\u1ee7a ch\u1ebf \u0111\u1ed9 \u00e1nh s\u00e1ng v\u00e0 ph\u00e2n b\u00f3n \u0111\u1ebfn c\u00e2y con Re g\u1eebng trong giai \u0111o\u1ea1n v\u01b0\u1eddn \u01b0\u01a1m l\u00e0 c\u1ea7n thi\u1ebft, c\u00f3 ngh\u0129a c\u1ea3 khoa h\u1ecdc v\u00e0 th\u1ef1c ti\u1ec5n s\u1ea3n xu\u1ea5t, l\u00e0m c\u01a1 s\u1edf khoa h\u1ecdc \u0111\u1ec1 xu\u1ea5t c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 t\u1ea1o c\u00e2y con th\u00edch h\u1ee3p nh\u1eb1m n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng c\u00e2y gi\u1ed1ng cho tr\u1ed3ng r\u1eebng. \u0110\u00e2y c\u0169ng l\u00e0 m\u1ed9t m\u1eaft x\u00edch quan tr\u1ecdng nh\u1eb1m n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng r\u1eebng tr\u1ed3ng lo\u00e0i c\u00e2y Re g\u1eebng.<\/p>\n<p><em>(T\u1ea1p ch\u00ed Khoa h\u1ecdc L\u00e2m nghi\u1ec7p s\u1ed1 2 n\u0103m 2012, trang 2191-2198)<\/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]--><!--[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<div align=\"justify\">\n<span style=\"font-size: 10pt; font-family: Arial\">Re g\u1eebng (<em>Cinnamomum<br \/>\nobtusifolium<\/em>) l&agrave; lo&agrave;i c&acirc;y g\u1ed7 b\u1ea3n \u0111\u1ecba, l&aacute; r\u1ed9ng th\u01b0\u1eddng xanh, c&oacute; gi&aacute; tr\u1ecb c\u1ea3 v\u1ec1<br \/>\nkinh t\u1ebf, x&atilde; h\u1ed9i v&agrave; m&ocirc;i tr\u01b0\u1eddng, l&agrave; m\u1ed9t trong nh\u1eefng lo&agrave;i c&acirc;y tr\u1ed3ng r\u1eebng ch&iacute;nh c\u1ee7a<br \/>\nnhi\u1ec1u \u0111\u1ecba ph\u01b0\u01a1ng trong nh\u1eefng n\u0103m qua \u1edf Vi\u1ec7t Nam. Tuy nhi&ecirc;n, vi\u1ec7c tr\u1ed3ng th&agrave;nh r\u1eebng<br \/>\nlo&agrave;i c&acirc;y n&agrave;y ch\u01b0a nhi\u1ec1u, v&igrave; c&ograve;n thi\u1ebfu m\u1ed9t s\u1ed1 c\u01a1 s\u1edf khoa h\u1ecdc t\u1eeb \u0111\u1eb7c \u0111i\u1ec3m sinh<br \/>\nl&yacute;, sinh th&aacute;i \u0111\u1ebfn k\u1ef9 thu\u1eadt gieo \u01b0\u01a1m v&agrave; tr\u1ed3ng r\u1eebng.<\/span>\n<\/div>\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\/9878"}],"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=9878"}],"version-history":[{"count":2,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9878\/revisions"}],"predecessor-version":[{"id":15221,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9878\/revisions\/15221"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9878"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9878"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}