{"id":8784,"date":"2009-03-24T04:28:03","date_gmt":"2009-03-23T21:28:03","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2009\/03\/khao-nghiem-xuat-xu-va-thu-nghiem-giam-hom-bach-dan-pellita\/"},"modified":"2019-09-24T11:00:38","modified_gmt":"2019-09-24T04:00:38","slug":"khao-nghiem-xuat-xu-va-thu-nghiem-giam-hom-bach-dan-pellita","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/khao-nghiem-xuat-xu-va-thu-nghiem-giam-hom-bach-dan-pellita\/","title":{"rendered":"KH\u1ea2O NGHI\u1ec6M XU\u1ea4T X\u1ee8 V\u00c0 TH\u1eec NGHI\u1ec6M GI\u00c2M HOM B\u1ea0CH \u0110\u00c0N PELLITA"},"content":{"rendered":"

\u0110\u1eb7ng Ph\u01b0\u1edbc \u0110\u1ea1i<\/em><\/strong><\/p>\n

Trung t\u00e2m KH&SX L\u00e2m nghi\u1ec7p \u0110.N.B\u1ed9<\/em><\/p>\n

Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t <\/em>Nam<\/em><\/p>\n

 <\/p>\n

B\u1ea1ch \u0111\u00e0n Pellita c\u00f3 t\u00ean khoa h\u1ecdc l\u00e0 Eucalyptus pellita<\/em> P., thu\u1ed9c h\u1ecd Sim (Myrtaceae), c\u00f3 ph\u00e2n b\u1ed1 t\u1ef1 nhi\u00ean \u1edf New South Wales v\u00e0 Queensland thu\u1ed9c n\u01b0\u1edbc \u00dac. \u0110\u00e2y l\u00e0 m\u1ed9t trong s\u1ed1 nh\u1eefng lo\u00e0i c\u00e2y g\u1ed7 l\u1edbn, m\u1ecdc nhanh \u0111ang r\u1ea5t \u0111\u01b0\u1ee3c quan t\u00e2m \u1edf nhi\u1ec1u n\u01b0\u1edbc nhi\u1ec7t \u0111\u1edbi b\u1edfi kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng t\u1ed1t tr\u00ean c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00e1 kh\u1eafc nghi\u1ec7t v\u1ec1 kh\u00ed h\u1eadu v\u00e0 \u0111\u1ea5t \u0111ai. C\u00e2y r\u1eebng pellita v\u1eabn cho kh\u1ea3 n\u0103ng sinh tr\u01b0\u1edfng t\u1ed1t tr\u00ean c\u00e1c lo\u1ea1i \u0111\u1ea5t kh\u00e1c nhau \u0111\u1eb7c bi\u1ec7t l\u00e0 tr\u00ean c\u00e1c d\u1ea1ng \u0111\u1ea5t c\u00e1t v\u00e0 v\u1edbi l\u01b0\u1ee3ng m\u01b0a h\u00e0ng n\u0103m ch\u1ec9 900mm, v\u00ec v\u1eady \u0111\u00e2y l\u00e0 gi\u1ed1ng c\u00e2y d\u1ec5 d\u00e0ng ph\u00e1t tri\u1ec3n m\u1edf r\u1ed9ng v\u1edbi nhi\u1ec1u m\u1ee5c \u0111\u00edch kh\u00e1c nhau. B\u00ean c\u1ea1nh \u0111\u00f3, ngo\u00e0i gi\u00e1 tr\u1ecb s\u1eed d\u1ee5ng \u0111a m\u1ee5c \u0111\u00edch nh\u01b0 c\u00e1c lo\u00e0i b\u1ea1ch \u0111\u00e0n kh\u00e1c, g\u1ed7 b\u1ea1ch \u0111\u00e0n pellita c\u00f2n r\u1ea5t \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng trong x\u00e2y d\u1ef1ng v\u00e0 l\u00e0m g\u1ed7 l\u00e1t s\u00e0n.<\/p>\n

\u1ede Vi\u1ec7t Nam, trong th\u1eddi gian g\u1ea7n \u0111\u00e2y v\u1edbi nhu c\u1ea7u g\u1ed7 v\u00e0 nguy\u00ean li\u1ec7u gi\u1ea5y ng\u00e0y c\u00e0ng t\u0103ng trong khi di\u1ec7n t\u00edch tr\u1ed3ng B\u1ea1ch \u0111\u00e0n ng\u00e0y c\u00e0ng thu h\u1eb9p v\u00ec nhi\u1ec1u nguy\u00ean nh\u00e2n kh\u00e1c nhau, trong \u0111\u00f3 n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng th\u1ea5p do s\u1eed d\u1ee5ng gi\u1ed1ng ch\u01b0a \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n v\u00e0 s\u1ef1 x\u00e2m h\u1ea1i n\u1eb7ng c\u1ee7a n\u1ea5m b\u1ec7nh l\u00e0 hai trong s\u1ed1 nh\u1eefng l\u00fd do ch\u00ednh khi\u1ebfn cho B\u1ea1ch \u0111\u00e0n kh\u00f4ng c\u00f2n l\u00e0 c\u00e2y tr\u1ed3ng \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn \u01b0u ti\u00ean t\u1ea1i v\u00f9ng \u0110\u00f4ng Nam B\u1ed9 n\u00f3i ri\u00eang v\u00e0 tr\u00ean nhi\u1ec1u v\u00f9ng c\u1ee7a c\u1ea3 n\u01b0\u1edbc n\u00f3i chung. Ch\u00ednh v\u00ec v\u1eady, \u0111\u1ed1i v\u1edbi nh\u00f3m c\u00e2y m\u1ecdc nhanh thu\u1ed9c chi Eucaluptus,<\/em> qu\u00e1 tr\u00ecnh nghi\u00ean c\u1ee9u t\u0103ng n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng th\u00f4ng qua c\u1ea3i thi\u1ec7n gi\u1ed1ng t\u1eeb kh\u00e2u ch\u1ecdn lo\u00e0i, xu\u1ea5t x\u1ee9 \u0111\u1ebfn c\u00e1c nghi\u00ean c\u1ee9u v\u1ec1 ch\u1ecdn l\u1ecdc c\u00e2y tr\u1ed9i, gi\u00e2m hom d\u1eabn d\u00f2ng nh\u1eb1m kh\u1eafc ph\u1ee5c c\u00e1c v\u1ea5n \u0111\u1ec1 n\u00eau tr\u00ean ch\u00ednh l\u00e0 c\u00f4ng t\u00e1c c\u00f3 \u00fd ngh\u0129 r\u1ea5t thi\u1ebft th\u1ef1c. V\u00e0 c\u00e1c nghi\u00ean c\u1ee9u v\u1ec1 c\u00e2y b\u1ea1ch \u0111\u00e0n pellita \u1edf \u0111\u00e2y c\u0169ng kh\u00f4ng n\u1eb1m ngo\u00e0i m\u1ee5c ti\u00eau \u0111\u00f3. Trong b\u00e1o c\u00e1o n\u00e0y, hai n\u1ed9i dung ch\u00ednh \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y l\u00e0: b\u01b0\u1edbc \u0111\u1ea7u \u0111\u00e1nh gi\u00e1 sinh tr\u01b0\u1edfng r\u1eebng tr\u1ed3ng th\u00ed nghi\u1ec7m xu\u1ea5t x\u1ee9 b\u1ea1ch \u0111\u00e0n Pellita t\u1ea1i B\u00ecnh D\u01b0\u01a1ng v\u00e0 k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m gi\u00e2m hom \u0111\u1ed1i v\u1edbi lo\u00e0i c\u00e2y n\u00e0y. C\u00e1c n\u1ed9i dung nghi\u00ean c\u1ee9u n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1ea1i \u0110\u00f4ng Nam B\u1ed9 trong s\u1ef1 ph\u1ed1i h\u1ee3p nghi\u00ean c\u1ee9u gi\u1eefa Trung T\u00e2m Nghi\u00ean C\u1ee9u Gi\u1ed1ng C\u00e2y R\u1eebng v\u00e0 Trung T\u00e2m Khoa H\u1ecdc L\u00e2m Nghi\u1ec7p \u0110\u00f4ng Nam B\u1ed9.<\/p>\n

    \n
  1. Nghi\u00ean c\u1ee9u sinh tr\u01b0\u1edfng c\u1ee7a c\u00e1c xu\u1ea5t x\u1ee9 B\u1ea1ch \u0111\u00e0n Pellita t\u1ea1i B\u00e0u B\u00e0ng<\/strong><\/li>\n<\/ol>\n

    1.1<\/em><\/strong>V\u1eadt li\u1ec7u v\u00e0 ph\u01b0\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u<\/em><\/strong><\/p>\n

    Th\u00ed nghi\u1ec7m bao g\u1ed3m 11 xu\u1ea5t x\u1ee9, trong \u0111\u00f3 c\u00f3 10 xu\u1ea5t x\u1ee9 nh\u1eadp n\u1ed9i t\u1eeb \u00dac v\u1edbi c\u00e1c l\u00f4 h\u1ea1t c\u00f3 m\u00e3 s\u1ed1: 18754 (Bupul Muting), 18197 (S of Kiriwo WP) , 18199, 18199 (2) Serisa, 18955 (Serisa), 19206 (Kiriwo), 19207 (Goe), 19616 (SSO Artheton Irian JY), 19673 (SSO Cardwell), 19718 (SSO Melville PNG IND) v\u00e0 1 xu\u1ea5t x\u1ee9 \u0111\u1ed1i ch\u1ee9ng (baubang<\/em>) c\u00f3 h\u1ea1t \u0111\u01b0\u1ee3c thu t\u1ea1i B\u00e0u B\u00e0ng (B\u00ecnh D\u01b0\u01a1ng), trong \u0111\u00f3 c\u00f3 m\u00e3 s\u1ed1 gia \u0111\u00ecnh 112 l\u00e0 l\u00f4 h\u1ea1t thu h\u00e1i \u0111\u1ea1i tr\u00e0 v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0 gia \u0111\u00ecnh \u0111\u1ed1i ch\u1ee9ng. C\u00f3 t\u1ea5t c\u1ea3 105 gia \u0111\u00ecnh v\u1edbi s\u1ed1 l\u01b0\u1ee3ng kh\u00f4ng b\u1eb1ng nhau c\u1ee7a 11 xu\u1ea5t x\u1ee9 n\u00eau tr\u00ean. Th\u00ed nghi\u1ec7m x\u00e2y d\u1ef1ng v\u00e0o th\u00e1ng 8\/2002 v\u00e0 \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed theo ki\u1ec3u kh\u1ed1i h\u00e0ng c\u1ed9t \u0111\u1ea7y \u0111\u1ee7 v\u1edbi 8 l\u1ea7n l\u1eb7p l\u1ea1i, m\u1ed7i l\u1eb7p c\u00f3 7 h\u00e0ng v\u00e0 15 c\u1ed9t t\u1ea1o n\u00ean 105 \u00f4 th\u00ed nghi\u1ec7m c\u1ee7a 105 gia \u0111\u00ecnh, m\u1ed7i gia \u0111\u00ecnh \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed 4 c\u00e2y tr\u00ean c\u00f9ng h\u00e0ng, m\u1eadt \u0111\u1ed9 tr\u1ed3ng l\u00e01660 c\u00e2y\/ha (c\u1ef1 ly 4×1,5m).<\/p>\n

    Th\u00ed nghi\u1ec7m \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed tr\u00ean \u0111\u1ea5t c\u00e1t pha \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh tr\u00ean t\u00e0n t\u00edch ph\u00f9 sa c\u1ed5, c\u00f3 t\u1ea7ng \u0111\u1ea5t d\u00e0y v\u00e0 tho\u00e1t n\u01b0\u1edbc t\u1ed1t, \u0111\u00e2y c\u0169ng l\u00e0 m\u1ed9t trong nh\u1eefng d\u1ea1ng \u0111\u1ea5t chi\u1ebfm t\u1ec9 l\u1ec7 l\u1edbn nh\u1ea5t trong ph\u00e2n v\u00f9ng qui ho\u1ea1ch \u0111\u1ea5t tr\u1ed3ng r\u1eebng \u1edf mi\u1ec1n \u0110\u00f4ng Nam b\u1ed9. C\u00e2y gi\u1ed1ng c\u1ee7a t\u1eebng gia \u0111\u00ecnh \u0111\u01b0\u1ee3c gieo ri\u00eang bi\u1ec7t trong t\u00fai b\u1ea7u PE t\u1ea1i v\u01b0\u1eddn \u01b0\u01a1m v\u00e0 sau \u0111\u00f3 chuy\u1ec3n \u0111\u1ebfn hi\u1ec7n tr\u01b0\u1eddng r\u1eebng tr\u1ed3ng theo s\u01a1 \u0111\u1ed3 th\u00ed nghi\u1ec7m \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf.<\/p>\n

    S\u1ed1 li\u1ec7u th\u00ed nghi\u1ec7m \u0111\u01b0\u1ee3c thu th\u1eadp h\u00e0ng n\u0103m theo c\u00e1c ch\u1ec9 ti\u00eau v\u1ec1 t\u1ec9 l\u1ec7 s\u1ed1ng (%), \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c (D1.3<\/sub>) v\u00e0 chi\u1ec1u cao v\u00fat ng\u1ecdn (Hvn), d\u1ea1ng th\u00e2n v\u00e0 m\u1ee9c \u0111\u1ed9 n\u1ea5m b\u1ec7nh h\u1ea1i. S\u1ed1 li\u1ec7u \u0111\u01b0\u1ee3c x\u1eed l\u00fd tr\u00ean c\u00e1c ph\u1ea7n m\u1ec1m Dataplus v\u00e0 Genstat trong m\u00e1y t\u00ednh. C\u00e1c ch\u1ec9 ti\u00eau t\u00ednh to\u00e1n l\u00e0 c\u00e1c ch\u1ec9 s\u1ed1 \u0111\u1eb7c tr\u01b0ng th\u1ed1ng k\u00ea, c\u00e1c ph\u00e2n t\u00edch so s\u00e1nh v\u00e0 x\u1ebfp h\u1ea1ng theo t\u1eebng ch\u1ec9 ti\u00eau sinh tr\u01b0\u1edfng.<\/p>\n","protected":false},"excerpt":{"rendered":"

    B\u1ea1ch \u0111àn Pellita có tên khoa h\u1ecdc là Eucalyptus pellita P., thu\u1ed9c h\u1ecd Sim (Myrtaceae), có phân b\u1ed1 t\u1ef1 nhiên \u1edf New South Wales và Queensland thu\u1ed9c n\u01b0\u1edbc Úc. \u0110ây là m\u1ed9t trong s\u1ed1 nh\u1eefng loài cây g\u1ed7 l\u1edbn, m\u1ecdc nhanh \u0111ang r\u1ea5t \u0111\u01b0\u1ee3c quan tâm \u1edf nhi\u1ec1u n\u01b0\u1edbc nhi\u1ec7t \u0111\u1edbi b\u1edfi kh\u1ea3 n\u0103ng thích \u1ee9ng t\u1ed1t trên các \u0111i\u1ec1u ki\u1ec7n khá kh\u1eafc nghi\u1ec7t v\u1ec1 khí h\u1eadu và \u0111\u1ea5t \u0111ai. Cây r\u1eebng pellita v\u1eabn cho kh\u1ea3 n\u0103ng sinh tr\u01b0\u1edfng t\u1ed1t trên các lo\u1ea1i \u0111\u1ea5t khác nhau \u0111\u1eb7c bi\u1ec7t là trên các d\u1ea1ng \u0111\u1ea5t cát và v\u1edbi l\u01b0\u1ee3ng m\u01b0a hàng n\u0103m ch\u1ec9 900mm, vì v\u1eady \u0111ây là gi\u1ed1ng cây d\u1ec5 dàng phát tri\u1ec3n m\u1edf r\u1ed9ng v\u1edbi nhi\u1ec1u m\u1ee5c \u0111ích khác nhau. Bên c\u1ea1nh \u0111ó, ngoài giá tr\u1ecb s\u1eed d\u1ee5ng \u0111a m\u1ee5c \u0111ích nh\u01b0 các loài b\u1ea1ch \u0111àn khác, g\u1ed7 b\u1ea1ch \u0111àn pellita còn r\u1ea5t \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng trong xây d\u1ef1ng và làm g\u1ed7 lát sàn.<\/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\/8784"}],"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=8784"}],"version-history":[{"count":3,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8784\/revisions"}],"predecessor-version":[{"id":19082,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8784\/revisions\/19082"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=8784"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=8784"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=8784"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}