{"id":478,"date":"2005-07-16T06:47:37","date_gmt":"2005-07-16T06:47:37","guid":{"rendered":"http:\/\/vafs.dungnq.local\/2005\/07\/16\/ket-qua-trong-thu-nghiem-bach-dan-brazil-tai-tan-lac-hoa-binh-2\/"},"modified":"2013-10-07T11:23:31","modified_gmt":"2013-10-07T04:23:31","slug":"ket-qua-trong-thu-nghiem-bach-dan-brazil-tai-tan-lac-hoa-binh-2","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/ket-qua-trong-thu-nghiem-bach-dan-brazil-tai-tan-lac-hoa-binh-2\/","title":{"rendered":"K\u1ebft qu\u1ea3 tr\u1ed3ng th\u1eed nghi\u1ec7m b\u1ea1ch \u0111\u00e0n Brazil t\u1ea1i T\u00e2n l\u1ea1c \u2013 Ho\u00e0 b\u00ecnh"},"content":{"rendered":"<p align=\"right\"><b><i>Nguy\u1ec5n B\u00e1 Tri\u1ec7u, B\u00f9i Ki\u1ec1u H\u01b0ng<\/i><\/b><\/p>\n<p align=\"right\"><i>Tr\u1ea1m th\u1ef1c nghi\u1ec7m KHKTLN T\u00e2n L\u1ea1c, Ho\u00e0 B\u00ecnh<\/i><\/p>\n<p align=\"right\"><i>Trung t\u00e2m<\/i><i><\/i><i>\u1ee9ng d\u1ee5ng KHKT L\u00e2m nghi\u1ec7p<\/i><\/p>\n<p align=\"right\"><i>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/i><\/p>\n<p align=\"right\">\n<p>&nbsp;<\/p>\n<p>Hi\u1ec7n nay vi\u1ec7c t\u00ecm ki\u1ebfm c\u00e1c lo\u00e0i c\u00e2y m\u1ecdc nhanh, n\u0103ng su\u1ea5t cao, \u0111\u1ea1t hi\u1ec7u qu\u1ea3 kinh t\u1ebf l\u1edbn \u0111ang l\u00e0 y\u00eau c\u1ea7u c\u1ea5p thi\u1ebft c\u1ee7a c\u00e1c Doanh nghi\u1ec7p, t\u1eadp th\u1ec3, c\u00e1 nh\u00e2n kinh doanh ngh\u1ec1 r\u1eebng.<\/p>\n<p>Theo \u0111\u01a1n \u0111\u1eb7t h\u00e0ng c\u1ee7a V\u1ee5 khoa h\u1ecdc v\u00e0 Ch\u1ea5t l\u00ad\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m (nay l\u00e0 V\u1ee5 Khoa h\u1ecdc C\u00f4ng ngh\u1ec7) \u2013 B\u1ed9 N\u00f4ng nghi\u1ec7p &amp; PTNT giao cho Trung t\u00e2m \u1ee9ng d\u1ee5ng khoa h\u1ecdc k\u1ef9 thu\u1eadt l\u00e2m nghi\u1ec7p tr\u1ed3ng th\u1eed nghi\u1ec7m m\u1ed9t s\u1ed1 d\u00f2ng B\u1ea1ch \u0111\u00e0n Brazil do Trung t\u00e2m nghi\u00ean c\u1ee9u c\u00e2y nguy\u00ean li\u1ec7u gi\u1ea5y Ph\u00f9 Ninh nh\u1eadp v\u1ec1.Th\u00ed nghi\u1ec7m \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed t\u1ea1i Tr\u1ea1m th\u1ef1c nghi\u1ec7m KHKTLN T\u00e2n l\u1ea1c \u2013 Ho\u00e0 b\u00ecnh v\u00e0o 9\/2001.<\/p>\n<p>Sau 36 th\u00e1ng tr\u1ed3ng th\u00ed nghi\u1ec7m, m\u1ed9t s\u1ed1 d\u00f2ng \u0111\u00e3 t\u1ecf ra sinh tr\u00ad\u01b0\u1edfng t\u1ed1t, ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n kh\u00ed h\u1eadu v\u00e0 th\u1ed5 nh\u00ad\u01b0\u1ee1ng trong khu v\u1ef1c. Trong khu\u00f4n kh\u1ed5 b\u00e0i b\u00e1o n\u00e0y ch\u00fang t\u00f4i xin th\u00f4ng b\u00e1o m\u1ed9t s\u1ed1 k\u1ebft qu\u1ea3 b\u01b0\u1edbc \u0111\u1ea7u v\u1ec1 sinh tr\u01b0\u1edfng c\u1ee7a c\u00e1c d\u00f2ng b\u1ea1ch \u0111\u00e0n n\u00f3i tr\u00ean.<\/p>\n<p>&nbsp;<\/p>\n<p><b>1. B\u1ed1 tr\u00ed th\u00ed nghi\u1ec7m<\/b><\/p>\n<p><b><i>1.1. <\/i><\/b><b><i>M\u1ed9t v\u00e0i n\u00e9t v\u1ec1 \u0111i\u1ec1u ki\u1ec7n t\u1ef1 nhi\u00ean khu v\u1ef1c tr\u1ed3ng th\u00ed nghi\u1ec7m:<\/i><\/b><\/p>\n<p>T\u1eed N\u00ea l\u00e0 m\u1ed9t x\u00e3 mi\u1ec1n n\u00fai thu\u1ed9c huy\u1ec7n T\u00e2n L\u1ea1c \u2013 t\u1ec9nh H\u00f2a B\u00ecnh, n\u1eb1m trong v\u00f9ng kh\u00ed h\u1eadu nhi\u1ec7t \u0111\u1edbi gi\u00f3 m\u00f9a, th\u1eddi ti\u1ebft chia l\u00e0m 4 m\u00f9a; Tuy nhi\u00ean trong n\u0103m l\u1ea1i th\u1ec3 hi\u1ec7n r\u00f5 2 m\u00f9a l\u00e0 m\u00f9a m\u01b0\u00ada v\u00e0 m\u00f9a kh\u00f4. M\u00f9a m\u01b0\u00ada b\u1eaft \u0111\u1ea7u t\u1eeb th\u00e1ng 4 \u0111\u1ebfn th\u00e1ng 10, m\u00f9a kh\u00f4 b\u1eaft \u0111\u1ea7u t\u1eeb th\u00e1ng 11 \u0111\u1ebfn th\u00e1ng 3 n\u0103m sau. V\u00e0o m\u00f9a kh\u00f4 c\u00f3 s\u01b0\u01a1ng m\u00f9 v\u00e0 s\u01b0\u01a1ng mu\u1ed1i.<\/p>\n<p>Nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh n\u0103m l\u00e0 23<sup>0<\/sup>C, l\u00ad\u01b0\u1ee3ng m\u00ad\u01b0a trung b\u00ecnh n\u0103m l\u00e0 1900 \u2013 2200mm. \u0110\u1ed9 \u1ea9m kh\u00f4ng kh\u00ed trung b\u00ecnh n\u0103m l\u00e0 85%.<\/p>\n<p>&nbsp;<\/p>\n<table width=\"100%\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>\n&nbsp;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table width=\"100%\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>\n<p align=\"center\">PN2<\/p>\n<p align=\"center\">\n<p>&nbsp;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table width=\"100%\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>\n<p align=\"center\">GU8<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table width=\"100%\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>\n<p align=\"center\">414<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table width=\"100%\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>\n1407<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table width=\"100%\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>\n<p align=\"center\">GU1<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table width=\"100%\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>\n<p align=\"center\">411<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u0110\u1ecba h\u00ecnh khu v\u1ef1c b\u1ed1 tr\u00ed th\u00ed nghi\u1ec7m l\u00e0 m\u1ed9t qu\u1ea3 \u0111\u1ed3i b\u00e1p \u00fap v\u1edbi di\u1ec7n t\u00edch 3ha, \u0111\u1ed9 d\u1ed1c trung b\u00ecnh 8 \u2013 12<sup>0<\/sup>. \u0110\u1ea5t Feralit ph\u00e1t tri\u1ec3n tr\u00ean \u0111\u00e1 Sa th\u1ea1ch. \u0110\u1ea5t c\u00f3 t\u1ea7ng d\u00e0y trung b\u00ecnh \u0111\u1ebfn kh\u00e1 50 \u2013 100 cm.<\/p>\n<p><b><i>1.2. <\/i><\/b><b><i>B\u1ed1 tr\u00ed th\u00ed nghi\u1ec7m:<\/i><\/b><\/p>\n<p>Qua nghi\u00ean c\u1ee9u c\u00e1c \u0111\u1eb7c t\u00ednh sinh th\u00e1i h\u1ecdc c\u1ee7a c\u00e1c d\u00f2ng B\u1ea1ch \u0111\u00e0n Brazil cho th\u1ea5y: \u0111i\u1ec1u ki\u1ec7n kh\u00ed h\u1eadu, \u0111\u1ea5t \u0111ai \u1edf khu v\u1ef1c T\u00e2n L\u1ea1c \u2013 Ho\u00e0 B\u00ecnh kh\u00e1 ph\u00f9 h\u1ee3p v\u1edbi tr\u1ed3ng B\u1ea1ch \u0111\u00e0n. Tuy nhi\u00ean, \u0111\u1ec3 ch\u1ecdn d\u00f2ng B\u1ea1ch \u0111\u00e0n n\u00e0o cho ph\u00f9 h\u1ee3p nh\u1ea5t (sinh tr\u01b0\u1edfng t\u1ed1t nh\u1ea5t, \u0111\u1ea1t hi\u1ec7u qu\u1ea3 cao nh\u1ea5t) cho ng\u01b0\u1eddi tr\u1ed3ng r\u1eebng l\u00e0 v\u1ea5n \u0111\u1ec1 m\u00e0 \u0111\u1ec1 t\u00e0i \u0111\u1eb7t ra. Trong th\u1eed nghi\u1ec7m n\u00e0y, ch\u00fang t\u00f4i \u0111\u00e3 tr\u1ed3ng 6 d\u00f2ng l\u00e0 414, GU1, 1407, 411, PN2, GU8<\/p>\n<p>Hi\u1ec7n tr\u01b0\u1eddng th\u00ed nghi\u1ec7m \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed c\u1ee5 th\u1ec3 nh\u01b0\u00ad sau:<\/p>\n<p>&#8211; Ph\u00e1t d\u1ecdn s\u1ea1ch to\u00e0n b\u1ed9 th\u1ef1c b\u00ec, sau \u0111\u00f3 d\u1ecdn v\u00e0 \u0111\u1ed1t s\u1ea1ch.<\/p>\n<p>&#8211; Chia l\u00e0m 6 l\u00f4 theo h\u00ecnh nan qu\u1ea1t, m\u1ed7i l\u00f4 b\u1ed1 tr\u00ed tr\u1ed3ng 1 d\u00f2ng nh\u01b0 s\u01a1 \u0111\u1ed3 d\u01b0\u1edbi \u0111\u00e2y<\/p>\n<p>Trong m\u1ed7i l\u00f4 thi\u1ebft k\u1ebf \u0111\u00e0o h\u1ed1 v\u1edbi m\u1eadt \u0111\u1ed9 1660 h\u1ed1\/ha( 3 \u00ec 2m). K\u00edch th\u00ad\u01b0\u1edbc h\u1ed1 40 x 40 x 40cm. M\u1ed7i h\u1ed1 b\u00f3n 0,2kg NPK.<\/p>\n<p>Ti\u00eau chu\u1ea9n c\u00e2y con \u0111em tr\u1ed3ng: C\u00e2y con 3 th\u00e1ng tu\u1ed5i trong b\u1ea7u PE, sinh tr\u00ad\u01b0\u1edfng t\u1ed1t, kh\u00f4ng cong queo s\u00e2u b\u1ec7nh. \u0110\u00ad\u01b0\u1eddng k\u00ednh g\u1ed1c Doo \u22650,2cm; Hvn \u2265 20cm.<\/p>\n<p>&nbsp;<\/p>\n<ol start=\"2\" type=\"1\">\n<ol start=\"2\" type=\"1\">\n<li><b>K\u1ebft qu\u1ea3 v\u00e0 th\u1ea3o lu\u1eadn.<\/b><\/li>\n<\/ol>\n<\/ol>\n<p>&nbsp;<\/p>\n<p>K\u1ebft qu\u1ea3 \u0111o \u0111\u1ebfm sinh tr\u01b0\u00ad\u1edfng \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh theo \u0111\u1ecbnh k\u1ef3 2 l\u1ea7n 1 n\u0103m v\u00e0o th\u00e1ng 3 v\u00e0 th\u00e1ng 9, sau n\u0103m th\u1ee9 2 m\u1ed7i n\u0103m \u0111o 1 l\u1ea7n. C\u00e1c ch\u1ec9 ti\u00eau \u0111o \u0111\u1ebfm v\u00e0 x\u00e1c \u0111\u1ecbnh bao g\u1ed3m: \u0110\u00ad\u01b0\u1eddng k\u00ednh g\u1ed1c(Doo), Chi\u1ec1u cao v\u00fat ng\u1ecdn( Hvn); \u0110\u00ad\u01b0\u1eddng k\u00ednh t\u00e1n( Dt) v\u00e0 Ch\u1ea5t l\u01b0\u1ee3ng c\u00e2y tr\u1ed3ng.<\/p>\n<p><b><i>2.1. <\/i><\/b><b><i>Sinh tr\u01b0\u1edfng v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh.<\/i><\/b><\/p>\n<p>K\u1ebft qu\u1ea3 \u0111o \u0111\u1ebfm sinh tr\u01b0\u1edfng Doo (cm) c\u00e1c d\u00f2ng B\u1ea1ch \u0111\u00e0n theo \u0111\u1ecbnh k\u1ef3 \u0111\u00ad\u01b0\u1ee3c th\u1ec3 hi\u1ec7n \u1edf bi\u1ec3u 01 v\u00e0 bi\u1ec3u \u0111\u1ed3 01.<\/p>\n<p><i><span style=\"text-decoration: underline\">Bi\u1ec3u 01:<\/span><\/i><i>S\u1ed1 li\u1ec7u \u0111o \u0111\u1ebfm sinh tr\u01b0\u1edfng Doo (cm)<\/i> <b><i><\/i><\/b><\/p>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td valign=\"top\" width=\"135\">\n<b>D\u00f2ng<\/b><\/p>\n<p>&nbsp;<\/p>\n<p><b>Th\u00e1ng tu\u1ed5i<\/b><\/td>\n<td width=\"105\">\n414<\/td>\n<td width=\"105\">\nGU1<\/td>\n<td width=\"105\">\n1407<\/td>\n<td width=\"90\">\n411<\/td>\n<td width=\"90\">\nPN2<\/td>\n<td width=\"90\">\nGU8<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"135\">\n3<\/td>\n<td valign=\"top\" width=\"105\">\n0,25<\/td>\n<td valign=\"top\" width=\"105\">\n0,26<\/td>\n<td valign=\"top\" width=\"105\">\n0,26<\/td>\n<td valign=\"top\" width=\"90\">\n0,27<\/td>\n<td valign=\"top\" width=\"90\">\n0,23<\/td>\n<td valign=\"top\" width=\"90\">\n0,25<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"135\">\n6<\/td>\n<td valign=\"top\" width=\"105\">\n0,8<\/td>\n<td valign=\"top\" width=\"105\">\n0,59<\/td>\n<td valign=\"top\" width=\"105\">\n0,74<\/td>\n<td valign=\"top\" width=\"90\">\n0,73<\/td>\n<td valign=\"top\" width=\"90\">\n0,54<\/td>\n<td valign=\"top\" width=\"90\">\n0,64<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"135\">\n12<\/td>\n<td valign=\"top\" width=\"105\">\n2,43<\/td>\n<td valign=\"top\" width=\"105\">\n2,44<\/td>\n<td valign=\"top\" width=\"105\">\n2,09<\/td>\n<td valign=\"top\" width=\"90\">\n2,01<\/td>\n<td valign=\"top\" width=\"90\">\n2,27<\/td>\n<td valign=\"top\" width=\"90\">\n2,73<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"135\">\n18<\/td>\n<td valign=\"top\" width=\"105\">\n4,38<\/td>\n<td valign=\"top\" width=\"105\">\n4,33<\/td>\n<td valign=\"top\" width=\"105\">\n4,55<\/td>\n<td valign=\"top\" width=\"90\">\n4,2<\/td>\n<td valign=\"top\" width=\"90\">\n4,53<\/td>\n<td valign=\"top\" width=\"90\">\n5,06<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"135\">\n24<\/td>\n<td valign=\"top\" width=\"105\">\n7,01<\/td>\n<td valign=\"top\" width=\"105\">\n6,95<\/td>\n<td valign=\"top\" width=\"105\">\n8,32<\/td>\n<td valign=\"top\" width=\"90\">\n7,01<\/td>\n<td valign=\"top\" width=\"90\">\n8,4<\/td>\n<td valign=\"top\" width=\"90\">\n8,94<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"135\">\n36<\/td>\n<td valign=\"top\" width=\"105\">\n9,9<\/td>\n<td valign=\"top\" width=\"105\">\n9,51<\/td>\n<td valign=\"top\" width=\"105\">\n10,60<\/td>\n<td valign=\"top\" width=\"90\">\n9,62<\/td>\n<td valign=\"top\" width=\"90\">\n11,37<\/td>\n<td valign=\"top\" width=\"90\">\n12,8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><i><span style=\"text-decoration: underline\">Bi\u1ec3u \u0111\u1ed3 01<\/span><\/i><i>: <\/i>Bi\u1ec3u \u0111\u1ed3 sinh tr\u01b0\u1edfng v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh g\u1ed1c Doo (cm) <i><\/i><\/p>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td valign=\"bottom\" width=\"570\">\n&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>Bi\u1ec3u 01 v\u00e0 bi\u1ec3u \u0111\u1ed3 01 cho th\u1ea5y:<\/p>\n<p>&#8211; Trong 6 d\u00f2ng B\u1ea1ch \u0111\u00e0n Brazil \u0111em tr\u1ed3ng th\u00ed nghi\u1ec7m th\u00ec d\u00f2ng GU8 l\u00e0 sinh tr\u01b0\u1edfng v\u1ec1 Doo nhanh nh\u1ea5t ngay t\u1eeb khi m\u1edbi tr\u1ed3ng.<\/p>\n<p>&#8211; D\u00f2ng 1407 v\u00e0 d\u00f2ng PN2 trong n\u0103m th\u1ee9 nh\u1ea5t sinh tr\u01b0\u1edfng trung b\u00ecnh, th\u1eadm ch\u00ed c\u00f2n k\u00e9m h\u01a1n d\u00f2ng 414 v\u00e0 GU1. Tuy nhi\u00ean t\u1eeb n\u0103m th\u1ee9 2 t\u1ed1c \u0111\u1ed9 sinh tr\u01b0\u1edfng v\u1ec1 Doo c\u1ee7a ch\u00fang v\u01b0\u1ee3t xa c\u1ea3 2 d\u00f2ng 414, 411 v\u00e0 GU1.<\/p>\n<p>&#8211; C\u00f2n d\u00f2ng 414,GU1, 411 t\u1ed1c \u0111\u1ed9 sinh tr\u01b0\u1edfng kh\u00e1, m\u1eb7c d\u00f9 v\u1eady so v\u1edbi 3 d\u00f2ng GU8, PN2, 1407 t\u1eeb sau 2 n\u0103m tr\u1ed3ng th\u1eed nghi\u1ec7m \u0111\u00e3 c\u00f3 s\u1ef1 ch\u00eanh l\u1ec7ch \u0111\u00e1ng k\u1ec3.<\/p>\n<p>S\u1ef1 thu\u1ea7n nh\u1ea5t (sai kh\u00e1c ) v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh gi\u1eefa c\u00e1c d\u00f2ng B\u1ea1ch \u0111\u00e0n sau 3 n\u0103m tr\u1ed3ng th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c ki\u1ec3m tra theo ti\u00eau chu\u1ea9n U c\u1ee7a ph\u00e2n b\u1ed1 chu\u1ea9n ti\u00eau chu\u1ea9n:<\/p>\n<p>&nbsp;<\/p>\n<table width=\"100%\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>\n&nbsp;<\/p>\n<p>X<sub>1<\/sub> \u2013 X<sub>2<\/sub><\/p>\n<p>U =<\/p>\n<p><span style=\"text-decoration: underline\">S<sub>1<\/sub><sup>2<\/sup><\/span> + <span style=\"text-decoration: underline\">S<sub>2<\/sub><sup>2<\/sup><\/span><\/p>\n<p>n<sub>1<\/sub> n<sub>2<\/sub><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Trong \u0111\u00f3:<\/p>\n<p>X1, X2: l\u00e0 gi\u00e1 tr\u1ecb trung b\u00ecnh c\u1ee7a c\u00e1c m\u1eabu<\/p>\n<p>S1, S2: Sai ti\u00eau chu\u1ea9n c\u1ee7a c\u00e1c m\u1eabu<\/p>\n<p>n<sub>1<\/sub>,n\u00ad<sub>2<\/sub>: dung l\u01b0\u1ee3ng m\u1eabu<\/p>\n<p>&nbsp;<\/p>\n<p>&#8211; N\u1ebfu U \u2265 1,96 : Gi\u1eefa c\u00e1c d\u00f2ng th\u00ed nghi\u1ec7m c\u00f3 s\u1ef1 sai kh\u00e1c r\u00f5 r\u1ec7t.<\/p>\n<p>&#8211; N\u1ebfu U &lt; 1,96 : Gi\u1eefa c\u00e1c d\u00f2ng th\u00ed nghi\u1ec7m t\u01b0\u01a1ng \u0111\u1ed1i thu\u1ea7n nh\u1ea5t (kh\u00f4ng c\u00f3 s\u1ef1 sai kh\u00e1c r\u00f5 r\u1ec7t)<\/p>\n<p>K\u1ebft qu\u1ea3 t\u00ednh to\u00e1n Doo v\u00e0 sai ti\u00eau chu\u1ea9n(S) c\u1ee7a c\u00e1c m\u1eabu \u0111\u01b0\u1ee3c ghi \u1edf bi\u1ec3u 02.<\/p>\n<p><i><span style=\"text-decoration: underline\">Bi\u1ec3u 02:<\/span><\/i><i>K\u1ebft qu\u1ea3 t\u00ednh to\u00e1n Doov\u00e0 sai ti\u00eau chu\u1ea9n (S)<\/i><\/p>\n<table width=\"777\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td valign=\"top\" width=\"144\">\nCh\u1ec9<\/p>\n<p>ti\u00eau<\/p>\n<p>D\u00f2ng<\/td>\n<td width=\"105\">\nDoo (cm)<\/p>\n<p>24 th\u00e1ng<\/td>\n<td width=\"105\">\nS<\/p>\n<p>24 th\u00e1ng<\/td>\n<td width=\"105\">\nn<\/td>\n<td valign=\"top\" width=\"105\">\nDoo (cm)<\/p>\n<p>24 th\u00e1ng<\/td>\n<td valign=\"top\" width=\"105\">\nS<\/p>\n<p>36 th\u00e1ng<\/td>\n<td width=\"106\">\nn<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"144\">\n414<\/td>\n<td valign=\"top\" width=\"105\">\n7.01<\/td>\n<td valign=\"top\" width=\"105\">\n1.53<\/td>\n<td valign=\"top\" width=\"105\">\n30<\/td>\n<td valign=\"top\" width=\"105\">\n9,9<\/td>\n<td valign=\"top\" width=\"105\">\n1,66<\/td>\n<td valign=\"top\" width=\"106\">\n30<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"144\">\nGU<sub>1<\/sub><\/td>\n<td valign=\"top\" width=\"105\">\n6.95<\/td>\n<td valign=\"top\" width=\"105\">\n1.36<\/td>\n<td valign=\"top\" width=\"105\">\n30<\/td>\n<td valign=\"top\" width=\"105\">\n9,51<\/td>\n<td valign=\"top\" width=\"105\">\n1,53<\/td>\n<td valign=\"top\" width=\"106\">\n30<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"144\">\n1407<\/td>\n<td valign=\"top\" width=\"105\">\n8.32<\/td>\n<td valign=\"top\" width=\"105\">\n1.6<\/td>\n<td valign=\"top\" width=\"105\">\n30<\/td>\n<td valign=\"top\" width=\"105\">\n10,6<\/td>\n<td valign=\"top\" width=\"105\">\n1,2<\/td>\n<td valign=\"top\" width=\"106\">\n30<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"144\">\n411<\/td>\n<td valign=\"top\" width=\"105\">\n7.01<\/td>\n<td valign=\"top\" width=\"105\">\n1.32<\/td>\n<td valign=\"top\" width=\"105\">\n30<\/td>\n<td valign=\"top\" width=\"105\">\n9,62<\/td>\n<td valign=\"top\" width=\"105\">\n1,13<\/td>\n<td valign=\"top\" width=\"106\">\n30<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"144\">\nPN<sub>2<\/sub><\/td>\n<td valign=\"top\" width=\"105\">\n8.4<\/td>\n<td valign=\"top\" width=\"105\">\n1.31<\/td>\n<td valign=\"top\" width=\"105\">\n30<\/td>\n<td valign=\"top\" width=\"105\">\n11,37<\/td>\n<td valign=\"top\" width=\"105\">\n1,44<\/td>\n<td valign=\"top\" width=\"106\">\n30<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"144\">\nGU<sub>8<\/sub><\/td>\n<td valign=\"top\" width=\"105\">\n8.94<\/td>\n<td valign=\"top\" width=\"105\">\n1.66<\/td>\n<td valign=\"top\" width=\"105\">\n30<\/td>\n<td valign=\"top\" width=\"105\">\n12,8<\/td>\n<td valign=\"top\" width=\"105\">\n1,3<\/td>\n<td valign=\"top\" width=\"106\">\n30<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>K\u1ebft qu\u1ea3 ki\u1ec3m tra s\u1ef1 thu\u1ea7n nh\u1ea5t v\u1ec1 Doo gi\u1eefa c\u00e1c d\u00f2ng B\u1ea1ch \u0111\u00e0n tr\u1ed3ng th\u00ed nghi\u1ec7m cho th\u1ea5y:<\/p>\n<p>* Sau 24 th\u00e1ng sinh tr\u01b0\u1edfng v\u1ec1 Doo gi\u1eefa c\u00e1c d\u00f2ng GU8, PN2, 1407 c\u00f3 s\u1ef1 sai kh\u00e1c r\u00f5 r\u1ec7t v\u1edbi c\u00e1c d\u00f2ng 414, GU1, 411. Gi\u1eefa c\u00e1c d\u00f2ng GU8, PN2 v\u00e0 1407 t\u01b0\u01a1ng \u0111\u1ed1i thu\u1ea7n nh\u1ea5t, kh\u00f4ng c\u00f3 s\u1ef1 sai kh\u00e1c r\u00f5 r\u1ec7t; V\u00e0 gi\u1eefa c\u00e1c d\u00f2ng 414, GU1, 411 c\u0169ng kh\u00f4ng c\u00f3 s\u1ef1 sai kh\u00e1c r\u00f5 r\u1ec7t.<\/p>\n<p>*Sau 36 th\u00e1ng: Trong nh\u00f3m sinh tr\u01b0\u1edfng m\u1ea1nh (GU8, PN2, 1407) \u0111\u00e3 c\u00f3 s\u1ef1 sai kh\u00e1c gi\u1eefa GU8 v\u1edbi PN2 v\u00e0 1407. D\u00f2ng GU8 v\u01b0\u1ee3t tr\u1ed9i l\u00ean so v\u1edbi 5 d\u00f2ng c\u00f2n l\u1ea1i; gi\u1eefa 2 d\u00f2ng PN2 v\u00e0 1407 v\u1eabn c\u00f3 s\u1ef1 thu\u1ea7n nh\u1ea5t.<\/p>\n<p>&#8211; Gi\u1eefa c\u00e1c d\u00f2ng PN2, 1407 v\u00e0 411,414, GU1 c\u00f3 s\u1ef1 sai kh\u00e1c r\u00f5 r\u1ec7t.<\/p>\n<p>&#8211; Gi\u1eefa c\u00e1c d\u00f2ng 411,414, GU1 t\u01b0\u01a1ng \u0111\u1ed1i thu\u1ea7n nh\u1ea5t.<\/p>\n<p>Nh\u00ad\u01b0 v\u1eady trong 6 d\u00f2ng B\u1ea1ch \u0111\u00e0n \u0111em tr\u1ed3ng th\u1eed nghi\u1ec7m th\u00ec c\u00f3 3 d\u00f2ng c\u00f3 t\u1ed1c \u0111\u1ed9 sinh tr\u01b0\u1edfng v\u1ec1 Doo v\u01b0\u1ee3t tr\u1ed9i h\u01a1n c\u1ea3 \u0111\u00f3 l\u00e0: GU8, PN2, 1407; \u0111\u1eb7c bi\u1ec7t l\u00e0 GU8 \u0111\u00e3 v\u01b0\u1ee3t tr\u1ed9i h\u01a1n h\u1eb3n PN2 v\u00e0 1407.<\/p>\n<p><b><i>2.2<\/i><\/b><i>. <b>Sinh tr\u01b0\u1edfng v\u1ec1 chi\u1ec1u cao( Hvn)<\/b><\/i><\/p>\n<p>K\u1ebft qu\u1ea3 \u0111o \u0111\u1ebfm sinh tr\u01b0\u00ad\u1edfng v\u1ec1 chi\u1ec1u cao theo \u0111\u1ecbnh k\u1ef3 \u0111\u00ad\u01b0\u1ee3c ghi trong<\/p>\n<p>bi\u1ec3u 03 v\u00e0 bi\u1ec3u di\u1ec5n \u1edf bi\u1ec3u \u0111\u1ed3 02.<\/p>\n<p><i><span style=\"text-decoration: underline\">Bi\u1ec3u 03:<\/span><\/i><i>K\u1ebft qu\u1ea3 \u0111o \u0111\u1ebfm sinh tr\u01b0\u00ad\u1edfng chi\u1ec1u cao<\/i><\/p>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td valign=\"top\" width=\"135\">\n<b>D\u00f2ng<\/b><\/p>\n<p>&nbsp;<\/p>\n<p><b>Th\u00e1ng tu\u1ed5i<\/b><\/td>\n<td width=\"105\">\n414<\/td>\n<td width=\"105\">\nGU1<\/td>\n<td width=\"120\">\n1407<\/td>\n<td width=\"120\">\n411<\/td>\n<td width=\"120\">\nPN2<\/td>\n<td width=\"105\">\nGU8<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"135\">\n3<\/td>\n<td valign=\"top\" width=\"105\">\n0,27<\/td>\n<td valign=\"top\" width=\"105\">\n0,28<\/td>\n<td valign=\"top\" width=\"120\">\n0,34<\/td>\n<td valign=\"top\" width=\"120\">\n0,29<\/td>\n<td valign=\"top\" width=\"120\">\n0,26<\/td>\n<td valign=\"top\" width=\"105\">\n0,33<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"135\">\n6<\/td>\n<td valign=\"top\" width=\"105\">\n0,48<\/td>\n<td valign=\"top\" width=\"105\">\n0,48<\/td>\n<td valign=\"top\" width=\"120\">\n0,5<\/td>\n<td valign=\"top\" width=\"120\">\n0,5<\/td>\n<td valign=\"top\" width=\"120\">\n0,41<\/td>\n<td valign=\"top\" width=\"105\">\n0,54<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"135\">\n12<\/td>\n<td valign=\"top\" width=\"105\">\n2,15<\/td>\n<td valign=\"top\" width=\"105\">\n2,16<\/td>\n<td valign=\"top\" width=\"120\">\n1,96<\/td>\n<td valign=\"top\" width=\"120\">\n1,87<\/td>\n<td valign=\"top\" width=\"120\">\n1,75<\/td>\n<td valign=\"top\" width=\"105\">\n2,64<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"135\">\n18<\/td>\n<td valign=\"top\" width=\"105\">\n4,31<\/td>\n<td valign=\"top\" width=\"105\">\n4,25<\/td>\n<td valign=\"top\" width=\"120\">\n4,2<\/td>\n<td valign=\"top\" width=\"120\">\n4,15<\/td>\n<td valign=\"top\" width=\"120\">\n3,92<\/td>\n<td valign=\"top\" width=\"105\">\n4,95<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"135\">\n24<\/td>\n<td valign=\"top\" width=\"105\">\n7,57<\/td>\n<td valign=\"top\" width=\"105\">\n7,23<\/td>\n<td valign=\"top\" width=\"120\">\n7,82<\/td>\n<td valign=\"top\" width=\"120\">\n7,33<\/td>\n<td valign=\"top\" width=\"120\">\n6,92<\/td>\n<td valign=\"top\" width=\"105\">\n8,28<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"135\">\nS%(24)<\/td>\n<td valign=\"top\" width=\"105\">\n17,93<\/td>\n<td valign=\"top\" width=\"105\">\n17,00<\/td>\n<td valign=\"top\" width=\"120\">\n15,26<\/td>\n<td valign=\"top\" width=\"120\">\n18,38<\/td>\n<td valign=\"top\" width=\"120\">\n14,61<\/td>\n<td valign=\"top\" width=\"105\">\n18,26<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"135\">\n36<\/td>\n<td valign=\"top\" width=\"105\">\n9,45<\/td>\n<td valign=\"top\" width=\"105\">\n8,93<\/td>\n<td valign=\"top\" width=\"120\">\n10,05<\/td>\n<td valign=\"top\" width=\"120\">\n9,21<\/td>\n<td valign=\"top\" width=\"120\">\n10,21<\/td>\n<td valign=\"top\" width=\"105\">\n11,35<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"135\">\nS%(36)<\/td>\n<td valign=\"top\" width=\"105\">\n16,19<\/td>\n<td valign=\"top\" width=\"105\">\n13,66<\/td>\n<td valign=\"top\" width=\"120\">\n10,64<\/td>\n<td valign=\"top\" width=\"120\">\n16,93<\/td>\n<td valign=\"top\" width=\"120\">\n10,67<\/td>\n<td valign=\"top\" width=\"105\">\n10,30<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><i><span style=\"text-decoration: underline\">Bi\u1ec3u \u0111\u1ed3 02: <\/span>K\u1ebft qu\u1ea3 \u0111o \u0111\u1ebfm sinh tr\u01b0\u00ad\u1edfng v\u1ec1 chi\u1ec1u cao<\/i><\/p>\n<p>&nbsp;<\/p>\n<p>Qua bi\u1ec3u 03 v\u00e0 bi\u1ec3u \u0111\u1ed3 02 ch\u00fang ta r\u00fat ra m\u1ed9t s\u1ed1 nh\u1eadn x\u00e9t sau:<\/p>\n<p>&#8211; Sau khi tr\u1ed3ng \u0111\u01b0\u1ee3c 6 th\u00e1ng tu\u1ed5i th\u00ec chi\u1ec1u cao gi\u1eefa c\u00e1c d\u00f2ng ch\u01b0\u00ada c\u00f3 s\u1ef1 kh\u00e1c nhau r\u00f5 r\u1ec7t.<\/p>\n<p>&#8211; T\u1eeb 6 th\u00e1ng tu\u1ed5i tr\u1edf \u0111i t\u1ed1c \u0111\u1ed9 sinh tr\u01b0\u1edfng v\u1ec1 chi\u1ec1u cao gi\u1eefa c\u00e1c d\u00f2ng \u0111\u00e3 c\u00f3 s\u1ef1 ch\u00eanh l\u1ec7ch r\u00f5 r\u1ec7t. V\u01b0\u1ee3t tr\u1ed9i h\u01a1n c\u1ea3 l\u00e0 d\u00f2ng GU<sub>8<\/sub> v\u00e0 d\u00f2ng 1407. Sau 24 th\u00e1ng d\u00f2ng c\u00f3 t\u1ed1c \u0111\u1ed9 sinh tr\u01b0\u1edfng v\u1ec1 Hvn ch\u1eadm nh\u1ea5t l\u00e0 d\u00f2ng PN<sub>2<\/sub>.Tuy nhi\u00ean, \u0111\u1ebfn n\u0103m th\u1ee9 3 d\u00f2ng PN2 sinh tr\u01b0\u1edfng m\u1ea1nh v\u1ec1 chi\u1ec1u cao, v\u01b0\u1ee3t tr\u1ed9i h\u01a1n h\u1eb3n c\u00e1c d\u00f2ng kh\u00e1c, ch\u1ec9 k\u00e9m d\u00f2ng GU8.<\/p>\n<p>Nh\u00ecn v\u00e0o h\u1ec7 s\u1ed1 bi\u1ebfn \u0111\u1ed9ng v\u1ec1 Hvn sau 24 th\u00e1ng v\u00e0 36 th\u00e1ng tr\u1ed3ng th\u00ed nghi\u1ec7m c\u1ee7a c\u00e1c d\u00f2ng cho ch\u00fang ta th\u1ea5y h\u1ec7 s\u1ed1 bi\u1ebfn \u0111\u1ed9ng c\u1ee7a c\u00e1c d\u00f2ng l\u00e0 t\u01b0\u01a1ng \u0111\u1ed1i nh\u1ecf th\u1ec3 hi\u1ec7n \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u gi\u1eefa c\u00e1c c\u00e1 th\u1ec3 trong m\u1ed7i d\u00f2ng. Trong 6 d\u00f2ng th\u00ec \u0111\u1ed3ng \u0111\u1ec1u nh\u1ea5t l\u00e0 d\u00f2ng PN<sub>2<\/sub> , GU8 v\u00e0 1407.<\/p>\n<p>\u0110\u1ec3 so s\u00e1nh v\u1ec1 Hvn gi\u1eefa c\u00e1c d\u00f2ng B\u1ea1ch \u0111\u00e0n c\u00f3 s\u1ef1 sai kh\u00e1c (hay \u0111\u1ed3ng nh\u1ea5t) v\u1edbi nhau kh\u00f4ng ta ki\u1ec3m tra theo ti\u00eau chu\u1ea9n U c\u1ee7a ph\u00e2n b\u1ed1 chu\u1ea9n ti\u00eau chu\u1ea9n. K\u1ebft qu\u1ea3 t\u00ednh to\u00e1n Doo v\u00e0 sai ti\u00eau chu\u1ea9n(S) \u0111\u01b0\u1ee3c ghi \u1edf bi\u1ec3u 04.<\/p>\n<p><i><span style=\"text-decoration: underline\">Bi\u1ec3u 04<\/span><\/i>:<i> K\u1ebft qu\u1ea3 t\u00ednh to\u00e1n Doov\u00e0 sai ti\u00eau chu\u1ea9n (S)<\/i><\/p>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td valign=\"top\" width=\"105\">\n<b>Ch\u1ec9 ti\u00eau<\/b><\/p>\n<p><b>D\u00f2ng<\/b><\/td>\n<td valign=\"top\" width=\"105\">\n<b>Hvn <\/b>(cm<b>) <\/b>24 24 th\u00e1ng<\/td>\n<td width=\"105\">\n<b>S<\/b><\/p>\n<p>24 th\u00e1ng<\/td>\n<td width=\"105\">\n<b>n<\/b><\/td>\n<td valign=\"top\" width=\"105\">\n<b>Hvn (cm)<\/b><\/td>\n<td width=\"105\">\n<b>S<\/b><\/td>\n<td width=\"106\">\n<b>n<\/b><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"105\">\n414<\/td>\n<td valign=\"top\" width=\"105\">\n7,57<\/td>\n<td valign=\"top\" width=\"105\">\n1,36<\/td>\n<td valign=\"top\" width=\"105\">\n30<\/td>\n<td valign=\"top\" width=\"105\">\n9,45<\/td>\n<td valign=\"top\" width=\"105\">\n1,53<\/td>\n<td valign=\"top\" width=\"106\">\n30<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"105\">\nGU<sub>1<\/sub><\/td>\n<td valign=\"top\" width=\"105\">\n7,23<\/td>\n<td valign=\"top\" width=\"105\">\n1,23<\/td>\n<td valign=\"top\" width=\"105\">\n30<\/td>\n<td valign=\"top\" width=\"105\">\n8,93<\/td>\n<td valign=\"top\" width=\"105\">\n1,22<\/td>\n<td valign=\"top\" width=\"106\">\n30<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"105\">\n1407<\/td>\n<td valign=\"top\" width=\"105\">\n7,82<\/td>\n<td valign=\"top\" width=\"105\">\n1,19<\/td>\n<td valign=\"top\" width=\"105\">\n30<\/td>\n<td valign=\"top\" width=\"105\">\n10,05<\/td>\n<td valign=\"top\" width=\"105\">\n1,07<\/td>\n<td valign=\"top\" width=\"106\">\n30<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"105\">\n411<\/td>\n<td valign=\"top\" width=\"105\">\n7,33<\/td>\n<td valign=\"top\" width=\"105\">\n1,35<\/td>\n<td valign=\"top\" width=\"105\">\n30<\/td>\n<td valign=\"top\" width=\"105\">\n9,21<\/td>\n<td valign=\"top\" width=\"105\">\n1,09<\/td>\n<td valign=\"top\" width=\"106\">\n30<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"105\">\nPN<sub>2<\/sub><\/td>\n<td valign=\"top\" width=\"105\">\n6,92<\/td>\n<td valign=\"top\" width=\"105\">\n1,01<\/td>\n<td valign=\"top\" width=\"105\">\n30<\/td>\n<td valign=\"top\" width=\"105\">\n10,21<\/td>\n<td valign=\"top\" width=\"105\">\n1,36<\/td>\n<td valign=\"top\" width=\"106\">\n30<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"105\">\nGU<sub>8<\/sub><\/td>\n<td valign=\"top\" width=\"105\">\n8,28<\/td>\n<td valign=\"top\" width=\"105\">\n1,51<\/td>\n<td valign=\"top\" width=\"105\">\n30<\/td>\n<td valign=\"top\" width=\"105\">\n11,35<\/td>\n<td valign=\"top\" width=\"105\">\n1,17<\/td>\n<td valign=\"top\" width=\"106\">\n30<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>Sau khi t\u00ednh to\u00e1n ki\u1ec3m tra s\u1ef1 thu\u1ea7n nh\u1ea5t( hay sai kh\u00e1c) gi\u1eefa c\u00e1c d\u00f2ng B\u1ea1ch \u0111\u00e0n theo ti\u00eau chu\u1ea9n U c\u1ee7a ph\u00e2n b\u1ed1 chu\u1ea9n ti\u00eau chu\u1ea9n, k\u1ebft qu\u1ea3 cho th\u1ea5y:<\/p>\n<p><i>* Sau 24 th\u00e1ng sinh tr\u01b0\u1edfng v\u1ec1 chi\u1ec1u cao( Hvn):<\/i><\/p>\n<p><i>&#8211; Gi\u1eefa 3 d\u00f2ng <\/i>GU<sub>8<\/sub>, 414 , 1407 v\u00e0 3 d\u00f2ng GU1, PN2, 411 c\u00f3 s\u1ef1 sai kh\u00e1c r\u00f5 r\u1ec7t.<i><\/i><\/p>\n<p>&#8211; 3 d\u00f2ng GU<sub>8<\/sub>, 414 v\u00e0 1407 sinh tr\u01b0\u1edfng v\u1ec1 chi\u1ec1u cao m\u1ea1nh kh\u00f4ng c\u00f3 s\u1ef1 sai kh\u00e1c r\u00f5 r\u1ec7t (t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u1ed3ng nh\u1ea5t). Sinh tr\u01b0\u1edfng t\u1ed1t nh\u1ea5t l\u00e0 d\u00f2ng GU8.<\/p>\n<p>&#8211; Gi\u1eefa 3 d\u00f2ng GU<sub>1<\/sub>, 411, PN<sub>2<\/sub>: t\u01b0\u01a1ng \u0111\u1ed1i thu\u1ea7n nh\u1ea5t.<\/p>\n<p>&#8211; Sai kh\u00e1c v\u1ec1 chi\u1ec1u cao r\u00f5 r\u1ec7t nh\u1ea5t l\u00e0 sai kh\u00e1c gi\u1eefa 2 d\u00f2ng: GU<sub>8<\/sub> v\u00e0 PN<sub>2<\/sub> (U = 4,12) m\u1ee9c \u0111\u1ed9 ch\u00eanh l\u1ec7ch l\u00e0 1,36m.<\/p>\n<p><i>*Sau 36 th\u00e1ng sinh tr\u01b0\u1edfng v\u1ec1 chi\u1ec1u cao gi\u1eefa c\u00e1c d\u00f2ng \u0111\u00e3 c\u00f3 s\u1ef1 thay \u0111\u1ed5i kh\u00e1 l\u1edbn:<\/i><\/p>\n<p>&#8211; Gi\u1eefa 3 d\u00f2ng sinh tr\u01b0\u1edfng m\u1ea1nh \u1edf th\u1eddi \u0111i\u1ec3m 24 th\u00e1ng l\u00e0 GU<sub>8<\/sub>, 414 v\u00e0 1407 ch\u01b0a c\u00f3 s\u1ef1 sai kh\u00e1c th\u00ec \u0111\u1ebfn th\u1eddi \u0111i\u1ec3m 36 th\u00e1ng \u0111\u00e3 c\u00f3 s\u1ef1 sai kh\u00e1c r\u00f5 r\u1ec7t. D\u00f2ng GU8 \u0111\u00e3 v\u01b0\u1ee3t tr\u1ed9i h\u01a1n h\u1eb3n so v\u1edbi c\u00e1c d\u00f2ng c\u00f2n l\u1ea1i.<\/p>\n<p>&#8211; D\u00f2ng PN2 th\u1ea5p nh\u1ea5t \u1edf th\u1eddi \u0111i\u1ec3m 24 th\u00e1ng, \u0111\u00e3 v\u01b0\u1ee3t l\u00ean x\u1ebfp th\u1ee9 2 sau GU8. Gi\u1eefa PN2 v\u00e0 1407 \u0111\u00e3 t\u01b0\u01a1ng \u0111\u1ed1i thu\u1ea7n nh\u1ea5t, kh\u00f4ng c\u00f3 s\u1ef1 sai kh\u00e1c \u0111\u00e1ng k\u1ec3.<\/p>\n<p>&#8211; Gi\u1eefa c\u00e1c d\u00f2ng PN2 v\u00e0 c\u00e1c d\u00f2ng GU1, 414, 411 \u0111\u00e3 c\u00f3 s\u1ef1 sai kh\u00e1c r\u00f5 r\u1ec7t.<\/p>\n<p>&#8211; Gi\u1eefa c\u00e1c d\u00f2ng 1407 v\u00e0 d\u00f2ng GU1, 411 kh\u00f4ng thu\u1ea7n nh\u1ea5t, c\u00f3 s\u1ef1 sai kh\u00e1c r\u00f5 r\u1ec7t.<\/p>\n<p>&#8211; Gi\u1eefa 2 d\u00f2ng 414 v\u00e0 1407 \u0111\u00e3 kh\u00f4ng c\u00f2n s\u1ef1 sai kh\u00e1c r\u00f5 r\u1ec7t nh\u01b0 \u1edf 2 n\u0103m \u0111\u1ea7u( 24 th\u00e1ng), m\u00e0 ch\u00fang \u0111\u00e3 t\u01b0\u01a1ng \u0111\u1ed1i thu\u1ea7n nh\u1ea5t.<\/p>\n<p>&#8211; Sai kh\u00e1c l\u1edbn nh\u1ea5t v\u1ec1 chi\u1ec1u cao l\u00e0 sai kh\u00e1c gi\u1eefa 2 d\u00f2ng GU8 v\u00e0 d\u00f2ng GU1, ch\u00eanh l\u1ec7ch v\u1ec1 chi\u1ec1u cao gi\u1eefa 2 d\u00f2ng n\u00e0y l\u00e0 2,48 m.<\/p>\n<p>Nh\u01b0\u00ad v\u1eady trong 6 d\u00f2ng B\u1ea1ch \u0111\u00e0n \u0111em tr\u1ed3ng th\u1eed nghi\u1ec7m c\u00f3 3 d\u00f2ng c\u00f3 t\u1ed1c \u0111\u1ed9 sinh tr\u01b0\u1edfng v\u1ec1 chi\u1ec1u cao m\u1ea1nh nh\u1ea5t \u0111\u00f3 l\u00e0: GU<sub>8<\/sub> ,PN2 v\u00e0 1407. \u0110\u1eb7c bi\u1ec7t n\u1ed5i tr\u1ed9i h\u01a1n c\u1ea3 l\u00e0 GU<sub>8<\/sub><b><i>.<\/i><\/b><\/p>\n<p><b>3. K\u1ebft lu\u1eadn v\u00e0 ki\u1ebfn ngh\u1ecb:<\/b><\/p>\n<p><b><i>3.1. K\u1ebft lu\u1eadn:<\/i><\/b><\/p>\n<p>Trong 6 d\u00f2ng B\u1ea1ch \u0111\u00e0n (5 d\u00f2ng Brazil v\u00e0 1 d\u00f2ng PN2) \u0111em tr\u1ed3ng th\u1eed nghi\u1ec7m t\u1ea1i T\u00e2n L\u1ea1c \u2013 Ho\u00e0 B\u00ecnh cho th\u1ea5y 3 d\u00f2ng t\u1ecf ra ph\u00f9 h\u1ee3p v\u00e0 ph\u00e1t tri\u1ec3n t\u1ed1t l\u00e0: GU<sub>8<\/sub> , PN<sub>2<\/sub> , 1407, trong \u0111\u00f3 d\u00f2ng sinh tr\u01b0\u1edfng t\u1ed1t nh\u1ea5t l\u00e0 d\u00f2ng GU<sub>8<\/sub>.<\/p>\n<p><b><i>3.2. Ki\u1ebfn ngh\u1ecb:<\/i><\/b><\/p>\n<p>&#8211; M\u00f4 h\u00ecnh th\u00ed nghi\u1ec7m n\u00e0y m\u1edbi ti\u1ebfn h\u00e0nh \u0111\u00ad\u01b0\u1ee3c 3 n\u0103m, do v\u1eady \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 ch\u00ednh x\u00e1c kh\u1ea3 n\u0103ng sinh tr\u01b0\u1edfng c\u1ee7a c\u00e1c d\u00f2ng trong c\u1ea3 chu k\u1ef3 s\u1ea3n xu\u1ea5t, tr\u00e1nh \u0111\u01b0\u1ee3c nh\u1eefng t\u1ed5n th\u1ea5t cho c\u00e1c nh\u00e0 kinh doanh ngh\u1ec1 r\u1eebng, \u0111\u1ec1 ngh\u1ecb B\u1ed9 ch\u1ee7 qu\u1ea3n t\u0103ng th\u00eam kinh ph\u00ed ch\u0103m s\u00f3c, b\u1ea3o v\u1ec7, \u0111o \u0111\u1ebfm \u0111\u00e1nh gi\u00e1 m\u00f4 h\u00ecnh tr\u1ed3ng th\u00ed nghi\u1ec7m th\u00eam 2-3 n\u0103m n\u1eefa.<\/p>\n<p>&#8211; V\u1edbi k\u1ebft qu\u1ea3 tr\u1ed3ng th\u1eed nghi\u1ec7m n\u00e0y, \u0111\u1ec1 ngh\u1ecb cho nh\u00e2n r\u1ed9ng 3 d\u00f2ng B\u1ea1ch \u0111\u00e0n GU<sub>8<\/sub>, PN<sub>2<\/sub> , 1407; \u0111\u1eb7c bi\u1ec7t l\u00e0 d\u00f2ng GU8 tr\u00ean \u0111\u1ecba b\u00e0n t\u1ec9nh Ho\u00e0 B\u00ecnh v\u00e0 m\u1ed9t s\u1ed1 n\u01a1i kh\u00e1c c\u00f3 \u0111i\u1ec1u ki\u1ec7n t\u1ef1 nhi\u00ean t\u01b0\u01a1ng t\u1ef1.<\/p>\n<p><b>T\u00e0i li\u1ec7u tham kh\u1ea3o:<\/b><\/p>\n<p>1- L\u00ea \u0110\u00ecnh Kh\u1ea3, Nguy\u1ec5n V\u0103n H\u1ea3i, H\u1ed3 Quang Vinh, Ch\u1ecdn v\u00e0 nh\u00e2n gi\u1ed1ng Keo Lai n\u0103ng su\u1ea5t cao. T\u1ed5ng k\u1ebft c\u00f4ng t\u00e1c nghi\u00ean c\u1ee9u c\u1ea3i thi\u1ec7n gi\u1ed1ng c\u00e2y r\u1eebng. Trung t\u00e2m nghi\u00ean c\u1ee9u gi\u1ed1ng c\u00e2y r\u1eebng, Vi\u1ec7n KHLN Vi\u1ec7t Nam, 1996.<\/p>\n<p>2- Nguy\u1ec5n Xu\u00e2n Qu\u00e1t, L\u1ef1a ch\u1ecdn c\u01a1 c\u1ea5u c\u00e2y tr\u1ed3ng trong c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh tr\u1ed3ng r\u1eebng \u1edf Vi\u1ec7t Nam, B\u00e1o c\u00e1o t\u1ea1i h\u1ed9i th\u1ea3o \u201cX\u00e1c \u0111\u1ecbnh lo\u00e0i c\u00e2y tr\u1ed3ng v\u00e0 ch\u1ecdn lo\u00e0i \u01b0u ti\u00ean\u201d, H\u00e0 N\u1ed9i 7-8\/9\/2000.<\/p>\n<p>3- Ho\u00e0ng Xu\u00e2n T\u00fd v\u00e0 c\u00e1c c\u1ed9ng s\u1ef1, N\u00e2ng cao c\u00f4ng ngh\u1ec7 th\u00e2m canh r\u1eebng tr\u1ed3ng v\u00e0 s\u1eed d\u1ee5ng c\u00e2y h\u1ecd \u0111\u1eadu \u0111\u1ec3 c\u1ea3i t\u1ea1o \u0111\u1ea5t v\u00e0 n\u00e2ng cao s\u1ea3n l\u01b0\u1ee3ng r\u1eebng tr\u1ed3ng, B\u00e1o c\u00e1o \u0111\u1ec1 t\u00e0i KN.03.13, Vi\u1ec7n KHLN Vi\u1ec7t Nam, 1996.<\/p>\n<p>4- \u0110\u1ed7 \u0110\u00ecnh S\u00e2m, Ph\u1ea1m V\u0103n Tu\u1ea5n, Nghi\u00ean c\u1ee9u x\u00e2y d\u1ef1ng m\u00f4 h\u00ecnh tr\u1ed3ng r\u1eebng c\u00f4ng nghi\u1ec7p n\u0103ng su\u1ea5t cao, 2001.<\/p>\n<p>&nbsp;<\/p>\n<p><b>Summary.<\/b>After three years of trial planting with 6 Eucalypt clones (5 Brazilian clones and the clone PH2) at the Tan Lac Scientific and Technical Experimentation Station in Hoa Binh as ordered by the Science and Product Quality Department (now The Science and Technology Department) &#8211; Ministry of Agriculture and Rural Development, rather good results have been obtained by the Forest Science and Techniques Application Centre. Of the 6 testing clones 3 prove suitable to climatic and edaphic conditions in the area i.e. GU8, PN2 and 1407. Specially, the clone GU8 had the fastest growth. However, to accurately evaluate the growth potential of the clones in the whole production rotation, observation and measurement must further be done in more 2-3 years. Results of this experiment show that the three clones GU8, PN2, 1407 can be introduced in Hoa Binh province and other areas of similar climatic and edaphic conditions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hi\u1ec7n nay vi\u1ec7c t\u00ecm ki\u1ebfm c\u00e1c lo\u00e0i c\u00e2y m\u1ecdc nhanh, n\u0103ng su\u1ea5t cao, \u0111\u1ea1t hi\u1ec7u qu\u1ea3 kinh t\u1ebf l\u1edbn \u0111ang l\u00e0 y\u00eau c\u1ea7u c\u1ea5p thi\u1ebft c\u1ee7a c\u00e1c Doanh nghi\u1ec7p, t\u1eadp th\u1ec3, c\u00e1 nh\u00e2n kinh doanh ngh\u1ec1 r\u1eebng. <\/p>\n<p>Theo \u0111\u01a1n \u0111\u1eb7t h\u00e0ng c\u1ee7a V\u1ee5 khoa h\u1ecdc v\u00e0 Ch\u1ea5t l\u00ad\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m (nay l\u00e0 V\u1ee5 Khoa h\u1ecdc C\u00f4ng ngh\u1ec7) \u2014 B\u1ed9 N\u00f4ng nghi\u1ec7p &amp; PTNT giao cho Trung t\u00e2m \u1ee9ng d\u1ee5ng khoa h\u1ecdc k\u1ef9 thu\u1eadt l\u00e2m nghi\u1ec7p tr\u1ed3ng th\u1eed nghi\u1ec7m m\u1ed9t s\u1ed1 d\u00f2ng B\u1ea1ch \u0111\u00e0n Brazil do Trung t\u00e2m nghi\u00ean c\u1ee9u c\u00e2y nguy\u00ean li\u1ec7u gi\u1ea5y Ph\u00f9 Ninh nh\u1eadp v\u1ec1.Th\u00ed nghi\u1ec7m \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed t\u1ea1i Tr\u1ea1m th\u1ef1c nghi\u1ec7m KHKTLN T\u00e2n l\u1ea1c \u2014 Ho\u00e0 b\u00ecnh v\u00e0o 9\/2001. <\/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\/478"}],"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=478"}],"version-history":[{"count":2,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/478\/revisions"}],"predecessor-version":[{"id":11550,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/478\/revisions\/11550"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=478"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=478"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=478"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}