{"id":1597,"date":"2012-04-12T08:34:50","date_gmt":"2012-04-12T08:34:50","guid":{"rendered":"http:\/\/vafs.dungnq.local\/2012\/04\/12\/nghien-cuu-mot-so-dac-diem-sinh-ly-sinh-thai-mot-so-loai-cay-la-rong-ban-dia-lam-co-so-cho-viec-gay-trong-rung\/"},"modified":"2013-10-06T09:02:43","modified_gmt":"2013-10-06T02:02:43","slug":"nghien-cuu-mot-so-dac-diem-sinh-ly-sinh-thai-mot-so-loai-cay-la-rong-ban-dia-lam-co-so-cho-viec-gay-trong-rung","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/nghien-cuu-mot-so-dac-diem-sinh-ly-sinh-thai-mot-so-loai-cay-la-rong-ban-dia-lam-co-so-cho-viec-gay-trong-rung\/","title":{"rendered":"Nghi\u00ean c\u1ee9u m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m sinh l\u00fd, sinh th\u00e1i m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y l\u00e1 r\u1ed9ng b\u1ea3n \u0111\u1ecba l\u00e0m c\u01a1 s\u1edf cho vi\u1ec7c g\u00e2y tr\u1ed3ng r\u1eebng"},"content":{"rendered":"<p> <strong>H\u00e0 Th\u1ecb M\u1eebng<\/strong> <\/p>\n<p> <em>Trung t\u00e2m Nghi\u00ean c\u01b0\u0301u Sinh th\u00e1i v\u00e0 M\u00f4i tr\u01b0\u1eddng r\u1eebng<\/em> <\/p>\n<p> <strong>T\u00d3M T\u1eaeT<\/strong> <\/p>\n<p> D\u1ebb \u0111\u1ecf v\u00e0 Kh\u00e1o v\u00e0ng th\u01b0\u1eddng ph\u00e2n b\u1ed1 \u1edf nh\u1eefng n\u01a1i c\u00f3 \u0111\u1ed9 cao 200-500m, \u0111\u1ed9 d\u1ed1c 10-25<sup>0<\/sup>, l\u01b0\u1ee3ng m\u01b0a 1.292 &#8211; 2.749 mm\/n\u0103m, nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh n\u0103m 21,2-23,4<sup>0<\/sup>C, \u0111\u1ea5t Feralit n\u00e2u v\u00e0ng ho\u1eb7c n\u00e2u s\u1eabm ph\u00e1t tri\u1ec3n tr\u00ean \u0111\u00e1 sa phi\u1ebfn th\u1ea1ch, \u0111\u1ea5t chua, h\u00e0m l\u01b0\u1ee3ng c\u00e1c ch\u1ea5t dinh d\u01b0\u1ee1ng t\u1eeb ngh\u00e8o \u0111\u1ebfn gi\u00e0u. Gi\u00e1 tr\u1ecb IVI c\u1ee7a D\u1ebb \u0111\u1ecf trong c\u00e1c l\u00e2m ph\u1ea7n nghi\u00ean c\u1ee9u l\u00e0 3,2 &#8211; 6,49\/300, c\u1ee7a Kh\u00e1o v\u00e0ng l\u00e0 4,9 &#8211; 10,33\/300. <\/p>\n<p> T\u1ef7 l\u1ec7 che s\u00e1ng th\u00edch h\u1ee3p cho D\u1ebb \u0111\u1ecf giai \u0111o\u1ea1n 1 n\u0103m tu\u1ed5i l\u00e0 75%, giai \u0111o\u1ea1n 2 n\u0103m tu\u1ed5i l\u00e0 50%, v\u00e0 giai \u0111o\u1ea1n 3 n\u0103m tu\u1ed5i l\u00e025%. L\u01b0\u1ee3ng N, P v\u00e0 K th\u00edch h\u1ee3p nh\u1ea5t cho sinh tr\u01b0\u1edfng c\u1ee7a D\u1ebb \u0111\u1ecf giai \u0111o\u1ea1n 1 tu\u1ed5i l\u00e0 38,17 mgN\/kg + 76,33 mgP<sub>2<\/sub>O<sub>5<\/sub>\/kg + 22,90 mgK<sub>2<\/sub>O\/kg \u0111\u1ea5t b\u1ea7u, giai \u0111o\u1ea1n 2 tu\u1ed5i l\u00e0 57,3 mgN\/kg + 152,7 mgP<sub>2<\/sub>O<sub>5<\/sub>\/kg + 34,4 mgK<sub>2<\/sub>O\/kg \u0111\u1ea5t b\u1ea7u. <\/p>\n<p> T\u1ef7 l\u1ec7 che s\u00e1ng th\u00edch h\u1ee3p cho Kh\u00e1o v\u00e0ng giai \u0111o\u1ea1n 1-6 th\u00e1ng tu\u1ed5i l\u00e0 75% \u00e1nh s\u00e1ng tr\u1ef1c x\u1ea1, giai \u0111o\u1ea1n 7 th\u00e1ng \u0111\u1ebfn 4 n\u0103m tu\u1ed5i l\u00e0 50%. L\u01b0\u1ee3ng N, P v\u00e0 K th\u00edch h\u1ee3p nh\u1ea5t cho sinh tr\u01b0\u1edfng c\u1ee7a Kh\u00e1o v\u00e0ng giai \u0111o\u1ea1n 1 tu\u1ed5i l\u00e0 57,3 mgN\/kg + 76,33 mgP<sub>2<\/sub>O<sub>5<\/sub>\/kg + 34,4 mgK<sub>2<\/sub>O\/kg \u0111\u1ea5t b\u1ea7u, giai \u0111o\u1ea1n 2 tu\u1ed5i l\u00e0 76,3 mgN\/kg + 114,5 mgP<sub>2<\/sub>O<sub>5<\/sub>\/kg + 45,8 mgK<sub>2<\/sub>O\/kg \u0111\u1ea5t b\u1ea7u. <\/p>\n<p> Gi\u00e1ng h\u01b0\u01a1ng ph\u00e2n b\u1ed1 \u1edf nh\u1eefng n\u01a1i c\u00f3 nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh n\u0103m 21,9-26,9<sup>0<\/sup>C, l\u01b0\u1ee3ng m\u01b0a 1268,3 &#8211; 2172,1mm\/n\u0103m, l\u01b0\u1ee3ng b\u1ed1c h\u01a1i 867,1 &#8211; 1435,5mm\/n\u0103m, tr\u00ean \u0111\u1ea5t c\u00f3 h\u00e0m l\u01b0\u1ee3ng c\u00e1c ch\u1ea5t dinh d\u01b0\u1ee1ng t\u1eeb ngh\u00e8o \u0111\u1ebfn kh\u00e1. Trong c\u00e1c l\u00e2m ph\u1ea7n t\u1ea1i v\u01b0\u1eddn qu\u1ed1c gia Yok Don, Gi\u00e1ng h\u01b0\u01a1ng chi\u1ebfm \u01b0u th\u1ebf trong l\u00e2m ph\u1ea7n; T\u1ef7 l\u1ec7 che s\u00e1ng th\u00edch h\u1ee3p cho c\u00e2y 6 th\u00e1ng tu\u1ed5i l\u00e0 50%, 12 th\u00e1ng tu\u1ed5i l\u00e0 25%, sau \u0111\u00f3 Gi\u00e1ng h\u01b0\u01a1ng c\u1ea7n 100% \u00e1nh s\u00e1ng t\u1ef1 nhi\u00ean. L\u01b0\u1ee3ng ch\u1ea5t kho\u00e1ng th\u00edch h\u1ee3p cho Gi\u00e1ng h\u01b0\u01a1ng giai \u0111o\u1ea1n 1 n\u0103m tu\u1ed5i trong v\u01b0\u1eddn \u01b0\u01a1m l\u00e0 38,17 mgN\/kg \u0111\u1ea5t b\u1ea7u + 76,3 mg P2O5\/kg \u0111\u1ea5t b\u1ea7u + 22,9 mg K2O\/kg \u0111\u1ea5t b\u1ea7u; giai \u0111o\u1ea1n 2 n\u0103m tu\u1ed5i l\u00e0 57,30 mgN\/kg \u0111\u1ea5t b\u1ea7u + 114,5 mg P2O5\/kg \u0111\u1ea5t b\u1ea7u + 45,8 mg K2O\/kg \u0111\u1ea5t b\u1ea7u.  <\/p>\n<p> <strong>T\u1eeb kh\u00f3a:<\/strong> D\u1ebb \u0111\u1ecf, Kh\u00e1o v\u00e0ng, Gi\u00e1ng h\u01b0\u01a1ng, \u0111\u1eb7c \u0111i\u1ec3m sinh l\u00fd &#8211; sinh th\u00e1i <\/p>\n<p> <strong>\u0110\u1eb6T V\u1ea4N \u0110\u1ec0<\/strong> <\/p>\n<p> D\u1ebb \u0111\u1ecf (<em>Lithocarpus ducampii<\/em> A.Camus), Kh\u00e1o v\u00e0ng (<em>Machilus odoratissima<\/em> Ness), v\u00e0 Gi\u00e1ng h\u01b0\u01a1ng (<em>Pterocarpus macrocarpus<\/em> Kurz) l\u00e0 c\u00e1c lo\u00e0i c\u00e2y g\u1ed7 c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf cao \u0111ang b\u1ecb khai ph\u00e1 m\u1ed9t c\u00e1ch nghi\u00eam tr\u1ecdng. C\u1ea3 ba lo\u00e0i \u0111\u1ec1u r\u1ea5t c\u00f3 tri\u1ec3n v\u1ecdng cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng tr\u1ed3ng ph\u1ee5c h\u1ed3i v\u00e0 l\u00e0m gi\u00e0u. \u0110\u00e2y c\u0169ng l\u00e0 c\u00e1c lo\u00e0i \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 \u01b0u ti\u00ean cho tr\u1ed3ng r\u1eebng \u1edf Vi\u1ec7t Nam, trong \u0111\u00f3, D\u1ebb \u0111\u1ecf v\u00e0 Kh\u00e1o v\u00e0ng l\u00e0 nh\u1eefng lo\u00e0i c\u00e2y g\u1ed7 c\u00f3 \u00fd ngh\u0129a cho c\u1ea3i t\u1ea1o r\u1eebng ngh\u00e8o, Gi\u00e1ng h\u01b0\u01a1ng l\u00e0 c\u00e2y g\u1ed7 qu\u00fd c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf cao \u0111ang b\u1ecb \u0111e d\u1ecda. M\u1ed9t s\u1ed1 m\u00f4 h\u00ecnh tr\u1ed3ng ph\u1ee5c h\u1ed3i r\u1eebng v\u1edbi ba \u0111\u1ed1i t\u01b0\u1ee3ng tr\u00ean \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng, song hi\u1ec3u bi\u1ebft v\u1ec1 \u0111\u1eb7c \u0111i\u1ec3m sinh l\u00fd sinh th\u00e1i c\u1ee7a lo\u00e0i c\u00f2n \u00edt. Do \u0111\u00f3, nghi\u00ean c\u1ee9u m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m sinh l\u00fd, sinh th\u00e1i c\u1ee7a ch\u00fang l\u00e0 c\u1ea7n thi\u1ebft nh\u1eb1m cung c\u1ea5p c\u00e1c th\u00f4ng tin c\u01a1 s\u1edf cho vi\u1ec7c x\u00e2y d\u1ef1ng c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt g\u00e2y tr\u1ed3ng v\u00e0 ph\u1ee5c h\u1ed3i r\u1eebng c\u00e2y b\u1ea3n \u0111\u1ecba. <\/p>\n<p> <em>(K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u khoa h\u1ecdc c\u00f4ng ngh\u1ec7 L\u00e2m nghi\u1ec7p giai \u0111o\u1ea1n 2006-2010, trang 324-312)<\/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:0pt 5.4pt 0pt 5.4pt;\nmso-para-margin:0pt;\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<p style=\"margin: 6pt 0pt; text-align: justify; text-indent: 18pt\" class=\"MsoNormal\" align=\"justify\">\n<span style=\"font-size: 10pt; font-family: Arial\">D\u1ebb \u0111\u1ecf v&agrave; Kh&aacute;o v&agrave;ng th\u01b0\u1eddng ph&acirc;n b\u1ed1 \u1edf nh\u1eefng n\u01a1i c&oacute; \u0111\u1ed9<br \/>\ncao 200-500m, \u0111\u1ed9 d\u1ed1c 10-25<sup>0<\/sup>, l\u01b0\u1ee3ng m\u01b0a 1.292 &#8211; 2.749 mm\/n\u0103m, nhi\u1ec7t<br \/>\n\u0111\u1ed9 trung b&igrave;nh n\u0103m 21,2-23,4<sup>0<\/sup>C, \u0111\u1ea5t Feralit n&acirc;u v&agrave;ng ho\u1eb7c n&acirc;u s\u1eabm<br \/>\nph&aacute;t tri\u1ec3n tr&ecirc;n \u0111&aacute; sa phi\u1ebfn th\u1ea1ch, \u0111\u1ea5t chua, h&agrave;m l\u01b0\u1ee3ng c&aacute;c ch\u1ea5t dinh d\u01b0\u1ee1ng t\u1eeb<br \/>\nngh&egrave;o \u0111\u1ebfn gi&agrave;u. Gi&aacute; tr\u1ecb IVI c\u1ee7a D\u1ebb \u0111\u1ecf trong c&aacute;c l&acirc;m ph\u1ea7n nghi&ecirc;n c\u1ee9u l&agrave; 3,2 &#8211; 6,49\/300,<br \/>\nc\u1ee7a Kh&aacute;o v&agrave;ng l&agrave; 4,9 &#8211; 10,33\/300.<\/span><\/p>\n","protected":false},"author":252,"featured_media":1812,"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\/1597"}],"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\/252"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=1597"}],"version-history":[{"count":6,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/1597\/revisions"}],"predecessor-version":[{"id":9811,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/1597\/revisions\/9811"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media\/1812"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=1597"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=1597"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=1597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}