{"id":8624,"date":"2009-03-24T02:32:57","date_gmt":"2009-03-23T19:32:57","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2009\/03\/mot-so-nghien-cuu-ve-ky-thuat-trong-rung-tram-tren-dat-chua-phen-o-huyen-thanh-hoa-long-an\/"},"modified":"2019-09-25T10:08:14","modified_gmt":"2019-09-25T03:08:14","slug":"mot-so-nghien-cuu-ve-ky-thuat-trong-rung-tram-tren-dat-chua-phen-o-huyen-thanh-hoa-long-an","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/mot-so-nghien-cuu-ve-ky-thuat-trong-rung-tram-tren-dat-chua-phen-o-huyen-thanh-hoa-long-an\/","title":{"rendered":"M\u1ed9T S\u1ed1 NGHi\u00eaN C\u1ee9U V\u1ec1 K\u1ef9 THU\u1eadT TR\u1ed3NG R\u1eebNG TR\u00e0M TR\u00eaN \u0110\u1ea5T CHUA PH\u00e8N \u1edf HUY\u1ec7N TH\u1ea1NH H\u00f3A, LONG AN"},"content":{"rendered":"<p><strong><em>Fuminori Miyatake, Michio Matsuda \u2013 chuy\u00ean gia JICA<\/em><\/strong><\/p>\n<p><strong><em>Ph\u1ea1m Th\u1ebf D\u0169ng, Ph\u1ea1m Ng\u1ecdc C\u01a1 <\/em><\/strong><\/p>\n<p><em>Ph\u00e2n vi\u1ec7n KHLN Nam b\u1ed9<\/em><\/p>\n<p><em>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n<p>\u0110\u1ed3ng b\u1eb1ng s\u00f4ng C\u1eedu Long (\u0110BSCL) c\u00f3 di\u1ec7n t\u00edch \u0111\u1ea5t ph\u00e8n 1.600.263ha chi\u1ebfm 40,1% t\u1ed5ng di\u1ec7n t\u00edch t\u1ef1 nhi\u00ean c\u1ee7a v\u00f9ng (\u0110\u1ed7 \u0110\u00ecnh S\u00e2m, 2001). Kh\u00e1c v\u1edbi sinh th\u00e1i v\u00f9ng ng\u1eadp n\u00ad\u1edbc ven bi\u1ec3n, v\u00f9ng \u0111\u1ea5t chua ph\u00e8n c\u00f3 th\u1eddi gian ng\u1eadp n\u00ad\u1edbc k\u00e9o d\u00e0i t\u1eeb 3-4 th\u00e1ng, \u0111\u1ed9 s\u00e2u ng\u1eadp n\u00ad\u1edbc trung b\u00ecnh t\u1eeb 0,8 \u20131,3 m. \u0110\u1eb7c \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a \u0111\u1ea5t l\u00e0 b\u1ecb nhi\u1ec5m ph\u00e8n v\u1edbi \u0111\u1ed9 chua pH \u1edf t\u1ea7ng \u0111\u1ea5t 0-40 cm t\u1eeb 3.0-4.0 do \u0111\u00f3 ch\u1ec9 c\u00f3 r\u1ea5t \u00edt c\u00e1c lo\u00e0i th\u1ef1c v\u1eadt c\u00e2y g\u1ed7 c\u00f3 th\u1ec3 sinh tr\u00ad\u1edfng t\u1ed1t tr\u00ean v\u00f9ng \u0111\u1ea5t n\u00e0y. Trong s\u1ed1 c\u00e1c lo\u00e0i c\u00e2y ph\u00e2n b\u1ed1 t\u1ef1 nhi\u00ean \u1edf \u0111\u00e2y c\u00f3 lo\u00e0i Tr\u00e0m (<em>Melaleuca<\/em>) thu\u1ed9c h\u1ecd Sim (<em>Myrtaceae<\/em>) c\u00f3 kh\u1ea3 n\u0103ng sinh tr\u00ad\u1edfng t\u1ed1t v\u00ec ch\u1ecbu \u0111\u00ad\u1ee3c ph\u00e8n.<\/p>\n<p>Trong chi\u1ebfn l\u00ad\u1ee3c ph\u00e1t tri\u1ec3n kinh t\u1ebf x\u00e3 h\u1ed9i v\u00f9ng \u0110BSCL v\u1edbi m\u1ee5c ti\u00eau chuy\u1ec3n \u0111\u1ed5i c\u01a1 c\u1ea5u c\u00e2y tr\u1ed3ng, c\u00e2y Tr\u00e0m \u0111\u00e3 \u0111\u00ad\u1ee3c coi l\u00e0 m\u1ed9t trong s\u1ed1 c\u00e1c lo\u00e0i c\u00e2y m\u0169i nh\u1ecdn \u0111\u00ad\u1ee3c \u00adu ti\u00ean ph\u00e1t tri\u1ec3n tr\u1ed3ng r\u1eebng tr\u00ean c\u00e1c v\u00f9ng \u0111\u1ea5t ph\u00e8n v\u1eeba \u0111\u00e1p \u1ee9ng \u0111\u00ad\u1ee3c m\u1ee5c ti\u00eau che ph\u1ee7 \u0111\u1ea5t, nhu c\u1ea7u v\u1ec1 g\u1ed7, v\u1eeba gi\u1ea3m thi\u1ec3u thi\u1ec7t h\u1ea1i b\u1edfi l\u0169 l\u1ee5t v\u00e0 c\u1ea3i thi\u1ec7n m\u00f4i tr\u00ad\u1eddng.<\/p>\n<p>D\u1ef1 \u00e1n &#8220;Ph\u00e1t tri\u1ec3n k\u1ef9 thu\u1eadt tr\u1ed3ng r\u1eebng tr\u00ean \u0111\u1ea5t ph\u00e8n \u1edf \u0110BSCL&#8221; v\u1edbi s\u1ef1 h\u1ee3p t\u00e1c gi\u1eefa C\u01a1 quan h\u1ee3p t\u00e1c qu\u1ed1c t\u1ebf Nh\u1eadt B\u1ea3n (JICA) v\u00e0 Ph\u00e2n vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam B\u1ed9 (FSSIV) \u0111\u00e3 \u0111\u00ad\u1ee3c th\u1ef1c hi\u1ec7n t\u1eeb n\u0103m 1997. M\u1ee5c ti\u00eau c\u1ee7a d\u1ef1 \u00e1n l\u00e0 h\u1ee3p t\u00e1c nghi\u00ean c\u1ee9u x\u00e2y d\u1ef1ng m\u00f4 h\u00ecnh v\u00e0 h\u00ad\u1edbng d\u1eabn k\u1ef9 thu\u1eadt tr\u1ed3ng r\u1eebng tr\u00ean \u0111\u1ea5t chua ph\u00e8n. B\u1ea3n b\u00e1o c\u00e1o n\u00e0y tr\u00ecnh b\u00e0y t\u00f3m t\u1eaft nh\u1eefng k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u v\u1ec1 ch\u1ecdn lo\u00e0i, xu\u1ea5t x\u1ee9 Tr\u00e0m, k\u1ef9 thu\u1eadt l\u00e0m \u0111\u1ea5t, m\u1eadt \u0111\u1ed9 c\u00e2y tr\u1ed3ng v\u00e0 k\u1ef9 thu\u1eadt ch\u0103m s\u00f3c r\u1eebng tr\u00e0m trong khu\u00f4n kh\u1ed5 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a d\u1ef1 \u00e1n.<\/p>\n<p>\u0110i\u1ec1u ki\u1ec7n t\u1ef1 nhi\u00ean khu v\u1ef1c th\u00ed nghi\u1ec7m.<\/p>\n<p>C\u00e1c th\u00ed nghi\u1ec7m \u0111\u00ad\u1ee3c th\u1ef1c hi\u1ec7n t\u1ea1i Tr\u1ea1m Th\u1ef1c nghi\u1ec7m L\u00e2m nghi\u1ec7p Th\u1ea1nh Ho\u00e1, huy\u1ec7n Th\u1ea1nh Ho\u00e1 t\u1ec9nh Long An, c\u00e1ch th\u1ecb x\u00e3 T\u00e2n An kho\u1ea3ng 30 km v\u1ec1 ph\u00eda T\u00e2y.<\/p>\n<p>\u0110\u1ecba h\u00ecnh khu v\u1ef1c th\u00ed nghi\u1ec7m t\u00ad\u01a1ng \u0111\u1ed1i b\u1eb1ng ph\u1eb3ng, th\u1ef1c b\u00ec che ph\u1ee7 ch\u1ee7 y\u1ebfu l\u00e0 c\u00e1c lo\u1ea1i c\u1ecf n\u0103ng, c\u1ecf m\u1ed3n, tr\u00e0m gi\u00f3, \u0111\u00adng v\u00e0 c\u00f3 th\u1eddi gian ng\u1eadp n\u00ad\u1edbc kho\u1ea3ng 3 th\u00e1ng, \u0111\u1ed9 s\u00e2u ng\u1eadp n\u00ad\u1edbc trung b\u00ecnh kho\u1ea3ng 0,8m, cao nh\u1ea5t v\u00e0o m\u00f9a l\u0169 l\u00ean t\u1edbi h\u01a1n 2 m.<\/p>\n<p>\u0110\u1ea5t khu th\u00ed nghi\u1ec7m ph\u1ea7n l\u1edbn thu\u1ed9c lo\u1ea1i \u0111\u1ea5t chua ph\u00e8n. \u0110\u1eb7c tr\u00adng t\u00ednh ch\u1ea5t \u0111\u1ea5t \u0111\u00ad\u1ee3c tr\u00ecnh b\u00e0y trong b\u1ea3ng 1.<\/p>\n<p><strong>1. Nghi\u00ean c\u1ee9u ch\u1ecdn lo\u00e0i v\u00e0 xu\u1ea5t x\u1ee9 Tr\u00e0m<\/strong><\/p>\n<p>M\u1ee5c \u0111\u00edch: Nghi\u00ean c\u1ee9u l\u1ef1a ch\u1ecdn c\u00e1c lo\u00e0i v\u00e0 gi\u1ed1ng Tr\u00e0m c\u00f3 sinh tr\u00ad\u1edfng t\u1ed1t bao g\u1ed3m c\u1ea3 gi\u1ed1ng Tr\u00e0m nh\u1eadp n\u1ed9i v\u00e0 Tr\u00e0m n\u1ed9i \u0111\u1ecba.<\/p>\n<p><em>Ph\u00ad\u01a1ng ph\u00e1p th\u00ed nghi\u1ec7m:<\/em>th\u00ed nghi\u1ec7m \u0111\u00ad\u1ee3c b\u1ed1 tr\u00ed theo kh\u1ed1i v\u1edbi 3 l\u1ea7n l\u1eb7p l\u1ea1i.<\/p>\n<p><em>M\u00f4 t\u1ea3 th\u00ed nghi\u1ec7m:<\/em>th\u00ed nghi\u1ec7m bao g\u1ed3m c\u00e1c xu\u1ea5t x\u1ee9 thu\u1ed9c 3 lo\u00e0i: Tr\u00e0m nh\u1eadp n\u1ed9i M.<em>leucdendra <\/em>c\u00f3 6 xu\u1ea5t x\u1ee9; M.<em>viridiflora<\/em> 2 xu\u1ea5t x\u1ee9 v\u00e0 Tr\u00e0m n\u1ed9i \u0111\u1ecba M.<em>cajuputi<\/em> c\u00f3 2 xu\u1ea5t x\u1ee9 thu\u1ed9c T\u1ecbnh Bi\u00ean -An Giang v\u00e0 V\u0129nh H\u00adng- Long An. Th\u00ed nghi\u1ec7m \u0111\u00ad\u1ee3c ti\u1ebfn h\u00e0nh v\u1edbi c\u00e1c ph\u00ad\u01a1ng ph\u00e1p l\u00e0m \u0111\u1ea5t kh\u00e1c nhau. M\u1eadt \u0111\u1ed9 tr\u1ed3ng chung tr\u00ean th\u00ed nghi\u1ec7m l\u00e010.000 c\u00e2y\/ha.<\/p>\n<p>K\u1ebft qu\u1ea3 sinh tr\u00ad\u1edfng \u0111\u00ad\u1ee3c tr\u00ecnh b\u00e0y trong b\u1ea3ng 2.<\/p>\n<table>\n<tbody>\n<tr>\n<td><strong><em>B\u00b6ng 1. K\u00d5t qu\u00b6 ph\u00a9n t\u00ddch \u00ae\u00cat khu v\u00f9c th\u00dd nghi\u00d6m<\/em><\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>STT<\/strong><\/td>\n<td><strong>\u0110\u1ed9 s\u00e2u<\/strong><\/p>\n<p><strong>(cm)<\/strong><\/td>\n<td><strong>pH (H<sub>2<\/sub>O)<\/strong><\/td>\n<td><strong>pH<\/strong><\/p>\n<p><strong>(KCl)<\/strong><\/td>\n<td><strong>Ch\u1ea5t h\u1eefu<\/strong><\/p>\n<p><strong>c\u01a1 (%)<\/strong><\/td>\n<td><strong>T\u1ed5ng c\u1ed9ng (%)<\/strong><\/td>\n<td><strong>D\u1ec5 ti\u00eau<\/strong><\/td>\n<td><strong>Trao \u0111\u1ed5i<\/strong><\/td>\n<td><strong>Dung d\u1ecbch mu\u1ed1i<\/strong><\/td>\n<td><strong>Ph\u00e2n t\u00edch c\u1ee1 h\u1ea1t<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>\u0110\u1ea5t \u00ad\u1edbt<\/strong><\/td>\n<td><strong>\u0110\u1ea5t kh\u00f4<\/strong><\/td>\n<td><strong>N<\/strong><\/td>\n<td><strong>P<sub>2<\/sub>O<sub>5<\/sub><\/strong><\/td>\n<td><strong>K<sub>2<\/sub>O<sub>5<\/sub><\/strong><\/td>\n<td><strong>N<\/strong><\/td>\n<td><strong>P<sub>2<\/sub>O<sub>5<\/sub><\/strong><\/td>\n<td><strong>K<sub>2<\/sub>O<sub>5<\/sub><\/strong><\/td>\n<td><strong>Ca<sup>2+<\/sup><\/strong><\/td>\n<td><strong>Mg<sup>2+<\/sup><\/strong><\/td>\n<td><strong>AL<sup>3+<\/sup><\/strong><\/td>\n<td><strong>SO4<sup>3+<\/sup>(%)<\/strong><\/td>\n<td><strong>2.2 -0.02<\/strong><\/td>\n<td><strong>0.02 &#8211; 0.002<\/strong><\/td>\n<td><strong>&lt; 0.002<\/strong><\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>0-20<\/td>\n<td>3,911<\/td>\n<td>3,84<\/td>\n<td>3,70<\/td>\n<td>16,55<\/td>\n<td>0,59<\/td>\n<td>0,20<\/td>\n<td>0,31<\/td>\n<td>18,38<\/td>\n<td>11,3<\/td>\n<td>9,1<\/td>\n<td>1,0<\/td>\n<td>1,2<\/td>\n<td>5,0<\/td>\n<td>0,310<\/td>\n<td>5,5<\/td>\n<td>47,7<\/td>\n<td>46,8<\/td>\n<\/tr>\n<tr>\n<td>20-40<\/td>\n<td>3,72<\/td>\n<td>3,61<\/td>\n<td>3,42<\/td>\n<td>1,35<\/td>\n<td>0,70<\/td>\n<td>0,04<\/td>\n<td>0,60<\/td>\n<td>7,88<\/td>\n<td>7,3<\/td>\n<td>11,2<\/td>\n<td>1,1<\/td>\n<td>0,7<\/td>\n<td>8,0<\/td>\n<td>0,252<\/td>\n<td>7,6<\/td>\n<td>41,6<\/td>\n<td>50,8<\/td>\n<\/tr>\n<tr>\n<td>40-80<\/td>\n<td>3,60<\/td>\n<td>3,25<\/td>\n<td>3,12<\/td>\n<td>1,29<\/td>\n<td>0,07<\/td>\n<td>0,03<\/td>\n<td>0,53<\/td>\n<td>3,5<\/td>\n<td>11,7<\/td>\n<td>1,1<\/td>\n<td>0,5<\/td>\n<td>7,4<\/td>\n<td>0,252<\/td>\n<td>17,2<\/td>\n<td>38,0<\/td>\n<td>44,8<\/td>\n<\/tr>\n<tr>\n<td>80-100<\/td>\n<td>3,70<\/td>\n<td>3,11<\/td>\n<td>2,98<\/td>\n<td>2,33<\/td>\n<td>0,08<\/td>\n<td>0,03<\/td>\n<td>0,55<\/td>\n<td>3,5<\/td>\n<td>11,2<\/td>\n<td>1,1<\/td>\n<td>0,7<\/td>\n<td>9,3<\/td>\n<td>0,277<\/td>\n<td>18,0<\/td>\n<td>45,2<\/td>\n<td>36,8<\/td>\n<\/tr>\n<tr>\n<td>110-150<\/td>\n<td>3,85<\/td>\n<td>2,89<\/td>\n<td>2,74<\/td>\n<td>1,56<\/td>\n<td>0,08<\/td>\n<td>0,04<\/td>\n<td>0,53<\/td>\n<td>10,0<\/td>\n<td>8,0<\/td>\n<td>1,2<\/td>\n<td>0,7<\/td>\n<td>8,44<\/td>\n<td>0,088<\/td>\n<td>27,4<\/td>\n<td>32,3<\/td>\n<td>40,3<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>0-20<\/td>\n<td>3,76<\/td>\n<td>3,74<\/td>\n<td>3,68<\/td>\n<td>30,00<\/td>\n<td>1,11<\/td>\n<td>0,20<\/td>\n<td>0,24<\/td>\n<td>28,00<\/td>\n<td>2,01<\/td>\n<td>9,1<\/td>\n<td>1,5<\/td>\n<td>1,5<\/td>\n<td>9,0<\/td>\n<td>0,126<\/td>\n<td>OM<\/td>\n<td>OM<\/td>\n<td>OM<\/td>\n<\/tr>\n<tr>\n<td>20-40<\/td>\n<td>3,68<\/td>\n<td>3,51<\/td>\n<td>3,34<\/td>\n<td>6,03<\/td>\n<td>0,14<\/td>\n<td>0,03<\/td>\n<td>0,55<\/td>\n<td>7,00<\/td>\n<td>4,0<\/td>\n<td>7,5<\/td>\n<td>1,2<\/td>\n<td>1,0<\/td>\n<td>9,4<\/td>\n<td>0,257<\/td>\n<td>41,4<\/td>\n<td>18,3<\/td>\n<td>40,3<\/td>\n<\/tr>\n<tr>\n<td>40-80<\/td>\n<td>3,45<\/td>\n<td>3,34<\/td>\n<td>3,19<\/td>\n<td>4,66<\/td>\n<td>0,08<\/td>\n<td>0,04<\/td>\n<td>0,55<\/td>\n<td>4,0<\/td>\n<td>9,1<\/td>\n<td>1,0<\/td>\n<td>1,2<\/td>\n<td>8,8<\/td>\n<td>0,100<\/td>\n<td>32,4<\/td>\n<td>27,3<\/td>\n<td>40,3<\/td>\n<\/tr>\n<tr>\n<td>80-150<\/td>\n<td>3,67<\/td>\n<td>3,03<\/td>\n<td>2,89<\/td>\n<td>6,00<\/td>\n<td>0,07<\/td>\n<td>0,03<\/td>\n<td>0,47<\/td>\n<td>7,0<\/td>\n<td>5,9<\/td>\n<td>1,2<\/td>\n<td>1,3<\/td>\n<td>8,8<\/td>\n<td>0,277<\/td>\n<td>26,5<\/td>\n<td>23,2<\/td>\n<td>50,3<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>0-15<\/td>\n<td>3,65<\/td>\n<td>3,54<\/td>\n<td>3,51<\/td>\n<td>15,93<\/td>\n<td>0,53<\/td>\n<td>0,08<\/td>\n<td>0,43<\/td>\n<td>17,50<\/td>\n<td>10,0<\/td>\n<td>8,5<\/td>\n<td>1,5<\/td>\n<td>0,8<\/td>\n<td>0,151<\/td>\n<td>0,140<\/td>\n<td>32,0<\/td>\n<td>32,0<\/td>\n<td>33,0<\/td>\n<\/tr>\n<tr>\n<td>15-45<\/td>\n<td>3,43<\/td>\n<td>3,33<\/td>\n<td>3,31<\/td>\n<td>7,03<\/td>\n<td>0,14<\/td>\n<td>0,03<\/td>\n<td>0,42<\/td>\n<td>7,00<\/td>\n<td>3,5<\/td>\n<td>6,4<\/td>\n<td>1,2<\/td>\n<td>1,2<\/td>\n<td>8,2<\/td>\n<td>0,100<\/td>\n<td>34,3<\/td>\n<td>27,5<\/td>\n<td>38,2<\/td>\n<\/tr>\n<tr>\n<td>45-75<\/td>\n<td>3,50<\/td>\n<td>3,32<\/td>\n<td>3,78<\/td>\n<td>9,31<\/td>\n<td>0,13<\/td>\n<td>0,03<\/td>\n<td>0,41<\/td>\n<td>4,3<\/td>\n<td>9,1<\/td>\n<td>1,3<\/td>\n<td>1,2<\/td>\n<td>9,0<\/td>\n<td>0,176<\/td>\n<td>34,5<\/td>\n<td>25,2<\/td>\n<td>40,3<\/td>\n<\/tr>\n<tr>\n<td>75-150<\/td>\n<td>3,57<\/td>\n<td>2,76<\/td>\n<td>2,66<\/td>\n<td>6,72<\/td>\n<td>0,09<\/td>\n<td>0,03<\/td>\n<td>0,34<\/td>\n<td>5,0<\/td>\n<td>2,7<\/td>\n<td>1,0<\/td>\n<td>0,5<\/td>\n<td>9,1<\/td>\n<td>0,202<\/td>\n<td>32,3<\/td>\n<td>24,6<\/td>\n<td>43,1<\/td>\n<\/tr>\n<tr>\n<td>7<\/td>\n<td>0-30<\/td>\n<td>4,08<\/td>\n<td>3,97<\/td>\n<td>3,73<\/td>\n<td>15,52<\/td>\n<td>0,55<\/td>\n<td>0,08<\/td>\n<td>0,44<\/td>\n<td>10,0<\/td>\n<td>7,5<\/td>\n<td>1,5<\/td>\n<td>1,0<\/td>\n<td>5,8<\/td>\n<td>0,076<\/td>\n<td>34,0<\/td>\n<td>30,0<\/td>\n<td>36,0<\/td>\n<\/tr>\n<tr>\n<td>30-50<\/td>\n<td>3,81<\/td>\n<td>3,57<\/td>\n<td>3,47<\/td>\n<td>5,69<\/td>\n<td>0,17<\/td>\n<td>0,05<\/td>\n<td>0,49<\/td>\n<td>16,78<\/td>\n<td>5,0<\/td>\n<td>5,0<\/td>\n<td>1,0<\/td>\n<td>1,2<\/td>\n<td>7,7<\/td>\n<td>0,026<\/td>\n<td>32,4<\/td>\n<td>21,4<\/td>\n<td>46,2<\/td>\n<\/tr>\n<tr>\n<td>50-80<\/td>\n<td>3,54<\/td>\n<td>3,38<\/td>\n<td>3,32<\/td>\n<td>3,31<\/td>\n<td>0,10<\/td>\n<td>0,03<\/td>\n<td>0,54<\/td>\n<td>7,00<\/td>\n<td>4,0<\/td>\n<td>9,6<\/td>\n<td>1,1<\/td>\n<td>1,3<\/td>\n<td>8,5<\/td>\n<td>0,026<\/td>\n<td>31,6<\/td>\n<td>23,1<\/td>\n<td>45,3<\/td>\n<\/tr>\n<tr>\n<td>80-100<\/td>\n<td>3,483<\/td>\n<td>3,9<\/td>\n<td>3,13<\/td>\n<td>9,31<\/td>\n<td>0,13<\/td>\n<td>0,03<\/td>\n<td>0,54<\/td>\n<td>4,0<\/td>\n<td>10,1<\/td>\n<td>1,0<\/td>\n<td>0,5<\/td>\n<td>9,0<\/td>\n<td>0,202<\/td>\n<td>35,0<\/td>\n<td>21,9<\/td>\n<td>43,1<\/td>\n<\/tr>\n<tr>\n<td>100-150<\/td>\n<td>3,59<\/td>\n<td>2,55<\/td>\n<td>2,34<\/td>\n<td>12,52<\/td>\n<td>0,13<\/td>\n<td>0,02<\/td>\n<td>0,47<\/td>\n<td>5,0<\/td>\n<td>2,7<\/td>\n<td>1,1<\/td>\n<td>0,5<\/td>\n<td>8,8<\/td>\n<td>0,126<\/td>\n<td>41,0<\/td>\n<td>23,9<\/td>\n<td>35,1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong><em>B\u1ea3ng 2. Sinh tr\u00ad\u1edfng D v\u00e0 H c\u1ee7a c\u00e1c lo\u00e0i v\u00e0 xu\u1ea5t x\u1ee9 Tr\u00e0m.<\/em><\/strong><\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>L\u00f4<\/strong><\/td>\n<td><strong>Tu\u1ed5i r\u1eebng<\/strong><\/td>\n<td><strong>Ph\u00ad\u01a1ng ph\u00e1p l\u00e0m \u0111\u1ea5t<\/strong><\/td>\n<td><strong>Lo\u00e0i v\u00e0 xu\u1ea5t x\u1ee9 tr\u00e0m<\/strong><\/td>\n<td><strong>M\u00e3 s\u1ed1 l\u00f4 h\u1ea1t<\/strong><\/p>\n<p><strong>Csiro<\/strong><\/td>\n<td><strong>D,cm<\/strong><\/td>\n<td><strong>H,m<\/strong><\/td>\n<\/tr>\n<tr>\n<td>9<\/td>\n<td>3,5 n\u0103m<\/td>\n<td>Ph\u00e1t d\u1ecdn th\u1ef1c b\u00ec, tr\u1ee5c \u0111\u1ea5t 2 l\u1ea7n.<\/td>\n<td>M.<em>leucadendra<\/em><\/p>\n<p>-weipa Aus.<\/p>\n<p>-bensabach PNG<\/p>\n<p>-kuru oriomo PNG<\/p>\n<p>-cambridge guif Aus.<\/p>\n<p>M.<em>viridiflora<\/em><\/p>\n<p>-cambridge guif Aus.<\/p>\n<p>-flying fox Aus.<\/p>\n<p>M.<em>cajuputi<\/em><\/p>\n<p>-An Giang<\/td>\n<td>14147<\/p>\n<p>18956<\/p>\n<p>18960<\/p>\n<p>18909<\/p>\n<p>18910<\/p>\n<p>18919<\/p>\n<p>&#8211;<\/td>\n<td>4.17<\/p>\n<p>4.65<\/p>\n<p>4.79<\/p>\n<p>4.11<\/p>\n<p>4.86<\/p>\n<p>3.29<\/p>\n<p>3.21<\/td>\n<td>4.67<\/p>\n<p>5.16<\/p>\n<p>4.89<\/p>\n<p>4.48<\/p>\n<p>4.66<\/p>\n<p>4.03<\/p>\n<p>3.98<\/td>\n<\/tr>\n<tr>\n<td>6<\/td>\n<td>2 n\u0103m 8 th.<\/td>\n<td>Ph\u00e1t d\u1ecdn th\u1ef1c b\u00ec, c\u00e0y \u0111\u1ea5t b\u1eb1ng m\u00e1y c\u00e0y 3 ch\u1ea3o.<\/td>\n<td>M.<em>leucadendra<\/em><\/p>\n<p>&#8211; weipa Aus.<\/p>\n<p>rifle creek Aus.<\/p>\n<p>prcoserpin Aus.<\/p>\n<p>M.<em>viridiflora<\/em><\/p>\n<p>flying fox Aus.<\/p>\n<p>M.<em>cajuputi<\/em><\/p>\n<p>&#8211; Long An VN (*)<\/td>\n<td>14147<\/p>\n<p>15892<\/p>\n<p>15573<\/p>\n<p>18919<\/td>\n<td>2.41<\/p>\n<p>2.18<\/p>\n<p>2.70<\/p>\n<p>2.25<\/p>\n<p>2.00<\/td>\n<td>3.02<\/p>\n<p>2.85<\/p>\n<p>2.74<\/p>\n<p>2.70<\/p>\n<p>2.59<\/td>\n<\/tr>\n<tr>\n<td>17<\/td>\n<td>2 n\u0103m<\/p>\n<p>8 th.<\/td>\n<td>Ph\u00e1t d\u1ecdn th\u1ef1c b\u00ec, l\u00ean l\u00edp b\u1eb1ng m\u00e1y.<\/p>\n<p>L\u00edp r\u1ed9ng 3,8m, cao 0,3m, m\u00ad\u01a1ng r\u1ed9ng 1,3m<\/td>\n<td>M<em>.leucadendra<\/em><\/p>\n<p>-cambridge guif Aus.<\/p>\n<p>-stain lawrence Aus.<\/p>\n<p>-rifle creek Aus.<\/p>\n<p>-prcoserpin Aus.<\/p>\n<p>M.<em>cajuputi<\/em><\/p>\n<p>&#8211; Long An VN (*)<\/td>\n<td>18909<\/p>\n<p>15575<\/p>\n<p>15892<\/p>\n<p>15573<\/p>\n<p>&#8211;<\/td>\n<td>3.78<\/p>\n<p>2.38<\/p>\n<p>2.46<\/p>\n<p>2.42<\/p>\n<p>2.11<\/td>\n<td>3.35<\/p>\n<p>2.66<\/p>\n<p>2.79<\/p>\n<p>2.74<\/p>\n<p>2.92<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>(*) <em>Khi tr\u1ed3ng c\u00e2y con c\u00f3 chi\u1ec1u cao kho\u1ea3ng 1 m v\u00e0 m\u1eadt \u0111\u1ed9 tr\u1ed3ng 20 000c\/ha.<\/em><\/p>\n<p><strong><em>Nh\u1eadn x\u00e9t<\/em><\/strong><\/p>\n<p>Nh\u00ecn chung sinh tr\u00ad\u1edfng D,H t\u1ed1t h\u01a1n thu\u1ed9c v\u1ec1 c\u00e1c lo\u00e0i M. <em>leucadendra<\/em>, k\u1ebf \u0111\u1ebfn l\u00e0 M.<em>viridiflora<\/em> v\u00e0 sau c\u00f9ng l\u00e0 M. <em>cajuputi<\/em>. Tuy nhi\u00ean, theo k\u1ebft qu\u1ea3 \u0111i\u1ec1u tra t\u1ef7 l\u1ec7 c\u00e2y b\u1ecb h\u1ea1i b\u1edfi chu\u1ed9t \u1edf giai \u0111o\u1ea1n r\u1eebng m\u1edbi tr\u1ed3ng, M<em>.leucadenra<\/em> c\u00f3 t\u1ef7 l\u1ec7 c\u00e2y b\u1ecb h\u1ea1i cao nh\u1ea5t, tr\u00ean 80% (Nguy\u1ec5n Th\u1ecb L\u1ec1,2000) l\u00e0m \u1ea3nh h\u00ad\u1edfng \u0111\u1ebfn ch\u1ea5t l\u00ad\u1ee3ng c\u00e2y v\u00e0 t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a r\u1eebng.<\/p>\n<p>Trong khi \u0111\u00f3 lo\u00e0i <em>M.viridiflora<\/em> c\u00f3 sinh tr\u00ad\u1edfng t\u00ad\u01a1ng \u0111\u1ed1i kh\u00e1 v\u00e0 t\u1ef7 l\u1ec7 b\u1ecb h\u1ea1i th\u1ea5p v\u00ec v\u1eady n\u00ean ch\u1ecdn c\u00e1c xu\u1ea5t x\u1ee9 c\u1ee7a lo\u00e0i n\u00e0y \u0111\u1ec3 ph\u00e1t tri\u1ec3n tr\u1ed3ng r\u1eebng, \u0111\u1ed3ng th\u1eddi c\u00f3 k\u1ebf ho\u1ea1ch c\u1ea3i thi\u1ec7n gi\u1ed1ng c\u00e1c lo\u00e0i tr\u00e0m n\u1ed9i \u0111\u1ecba s\u1ebd cho sinh tr\u00ad\u1edfng t\u1ed1t h\u01a1n v\u00e0 kh\u00f4ng b\u1ecb h\u1ea1i b\u1edfi chu\u1ed9t.<\/p>\n<p><strong>2. Ngi\u00ean c\u1ee9u k\u1ef9 thu\u1eadt l\u00e0m \u0111\u1ea5t<\/strong><\/p>\n<p><em>M\u1ee5c \u0111\u00edch<strong>:<\/strong><\/em>Ph\u00ad\u01a1ng ph\u00e1p l\u00ean l\u00edp tr\u1ed3ng r\u1eebng \u0111\u00e3 tr\u1edf th\u00e0nh ph\u00ad\u01a1ng ph\u00e1p kh\u00e1 ph\u1ed5 bi\u1ebfn \u1edf \u0111\u1ed3ng b\u1eb1ng s\u00f4ng C\u1eedu Long. Tuy nhi\u00ean, \u0111\u1ec3 ch\u1ecdn l\u1ef1a ph\u00ad\u01a1ng ph\u00e1p n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi sinh tr\u00ad\u1edfng c\u1ee7a Tr\u00e0m, c\u00f3 kh\u1ea3 n\u0103ng c\u1ea3i t\u1ea1o \u0111\u1ea5t v\u00e0 quan tr\u1ecdng l\u00e0 gi\u1ea3m chi ph\u00ed l\u00ean l\u00edp v\u1eabn ch\u00ada \u0111\u00ad\u1ee3c nghi\u00ean c\u1ee9u. \u0110\u00f3 ch\u00ednh l\u00e0 m\u1ee5c ti\u00eau c\u1ee7a th\u1eed nghi\u1ec7m n\u00e0y.<\/p>\n<p><em>Ph\u00ad\u01a1ng ph\u00e1p th\u00ed nghi\u1ec7m<strong>:<\/strong><\/em>Th\u00ed nghi\u1ec7m \u0111\u00ad\u1ee3c th\u1ef1c hi\u1ec7n theo t\u1eebng kh\u1ed1i c\u00f3 di\u1ec7n t\u00edch t\u1eeb 0.8- 1,0 ha. Vi\u1ec7c thu th\u1eadp s\u1ed1 li\u1ec7u \u0111\u00ad\u1ee3c ti\u1ebfn h\u00e0nh tr\u00ean 3 \u00f4 ti\u00eau chu\u1ea9n c\u00e1ch \u0111\u1ec1u tr\u00ean di\u1ec7n t\u00edch c\u1ee7a kh\u1ed1i.<\/p>\n<p><em>N\u1ed9i dung th\u00ed nghi\u1ec7m<strong>:<\/strong><\/em><\/p>\n<p>+ Ph\u00e1t d\u1ecdn th\u1ef1c b\u00ec, kh\u00f4ng l\u00e0m \u0111\u1ea5t, tr\u1ed3ng tr\u1ef1c ti\u1ebfp (l\u00f4 21).<\/p>\n<p>+ Ph\u00e1t d\u1ecdn th\u1ef1c b\u00ec,c\u00e0y \u0111\u1ea5t b\u1eb1ng m\u00e1y c\u00e0y 3 ch\u1ea3o v\u00e0o m\u00f9a kh\u00f4(l\u00f4 6).<\/p>\n<p>+ Ph\u00e1t d\u1ecdn th\u1ef1c b\u00ec, tr\u1ee5c \u0111\u1ea5t 2 l\u1ea7n b\u1eb1ng m\u00e1y k\u00e9o c\u00f3 b\u00e1nh l\u1ed3ng (l\u00f4 9).<\/p>\n<p>+ Ph\u00e1t d\u1ecdn th\u1ef1c b\u00ec, l\u00ean l\u00edp th\u1ea5p b\u1eb1ng m\u00e1y k\u00e9o v\u1edbi c\u00f4ng c\u1ee5 \u0111\u00e0o m\u00ad\u01a1ng 1 b\u00ad\u1edbc (1 step).<\/p>\n<p>+ Ph\u00e1t d\u1ecdn th\u1ef1c b\u00ec, l\u00ean l\u00edp cao b\u1eb1ng m\u00e1y k\u00e9o c\u00f3 c\u00f4ng c\u1ee5 \u0111\u00e0o m\u00ad\u01a1ng 2 b\u00ad\u1edbc (2 step).<\/p>\n<p>K\u1ebft qu\u1ea3 sinh tr\u00ad\u1edfng c\u1ee7a Tr\u00e0m \u0111\u00ad\u1ee3c tr\u00ecnh b\u00e0y trong b\u1ea3ng 3.<\/p>\n<p><strong><em>B\u1ea3ng 3. \u1ea3nh<\/em><\/strong><strong><em>h\u00ad\u1edfng c\u1ee7a ph\u00ad\u01a1ng ph\u00e1p l\u00e0m \u0111\u1ea5t \u0111\u1ebfn sinh tr\u00ad\u1edfng c\u1ee7a Tr\u00e0m \u1edf 2,5 n\u0103m tu\u1ed5i<\/em><\/strong><\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>Xu\u1ea5t x\u1ee9<\/strong><\/td>\n<td><strong>Kh\u00f4ng<\/strong><\/p>\n<p><strong>l\u00ean l\u00edp<\/strong><\/td>\n<td><strong>C\u00e0y \u0111\u1ea5t<\/strong><\/td>\n<td><strong>M\u00e1y l\u00ean l\u00edp th\u1ea5p (1 l\u1ea7n *)<\/strong><\/td>\n<td><strong>M\u00e1y l\u00ean l\u00edp cao (2 l\u1ea7n**)<\/strong><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><strong>l\u00f4 21<\/strong><\/td>\n<td><strong>l\u00f4 6<\/strong><\/td>\n<td><strong>l\u00f4 17<\/strong><\/td>\n<td><strong>l\u00f4 15<\/strong><\/td>\n<td><strong>l\u00f4 15<\/strong><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><strong>D,cm<\/strong><\/td>\n<td><strong>H,m<\/strong><\/td>\n<td><strong>D,cm<\/strong><\/td>\n<td><strong>H,m<\/strong><\/td>\n<td><strong>D,cm<\/strong><\/td>\n<td><strong>H,m<\/strong><\/td>\n<td><strong>D,cm<\/strong><\/td>\n<td><strong>H,m<\/strong><\/td>\n<td><strong>D,cm<\/strong><\/td>\n<td><strong>H,m<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>M.<em>leucadendra<\/em><\/strong><\/td>\n<\/tr>\n<tr>\n<td>&#8211; sain lawrence Aus<\/td>\n<td>2.38<\/td>\n<td>2.66<\/td>\n<td>4.72<\/td>\n<td>4.11<\/td>\n<\/tr>\n<tr>\n<td>&#8211; rifle creek Aus.<\/td>\n<td>2.18<\/td>\n<td>2.85<\/td>\n<td>2.46<\/td>\n<td>2.79<\/td>\n<td>3.78<\/td>\n<td>3.51<\/td>\n<\/tr>\n<tr>\n<td><strong><em>M.viridiflora<\/em><\/strong><\/td>\n<\/tr>\n<tr>\n<td>&#8211; flying fox Aus.<\/td>\n<td>2.25<\/td>\n<td>2.7<\/td>\n<td>3.42<\/td>\n<td>3.03<\/td>\n<\/tr>\n<tr>\n<td><strong><em>M.cajuputi<\/em><\/strong><\/td>\n<\/tr>\n<tr>\n<td>&#8211; An Giang VN<\/td>\n<td>1.71<\/td>\n<td>2.28<\/td>\n<td>2<\/td>\n<td>2.59<\/td>\n<\/tr>\n<tr>\n<td><em>* L\u00ean l\u00edp 1 l\u1ea7n : D\u00f9ng m\u00e1y k\u00e9o Challenger v\u00e0 s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 l\u00ean l\u00edp nh\u1ecf 1 l\u1ea7n. L\u00edp r\u1ed9ng 3,8-4m, cao 0,1m, m\u00ad\u01a1ng s\u00e2u 0,55m r\u1ed9ng 1,3m.<\/em><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><em>** L\u00ean l\u00edp 2 l\u1ea7n: Nh\u00ad l\u1ea7n1 sau \u0111\u00f3 d\u00f9ng m\u00e1y k\u00e9o Challenger v\u1edbi c\u00f4ng c\u1ee5 m\u1edf r\u1ed9ng m\u00ad\u01a1ng v\u00e0 \u0111\u1eafp \u0111\u1ea5t l\u00ean l\u00edp. L\u00edp r\u1ed9ng 2m cao 0,3m m\u00ad\u01a1ng s\u00e2u 0,55m<\/em><\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>Nh\u1eadn x\u00e9t<\/em><\/p>\n<p>+ Tr\u00e0m <em>M.leucadendra:<\/em> c\u00f3 sinh tr\u00ad\u1edfng v\u00ad\u1ee3t h\u01a1n v\u1ec1 \u0111\u00ad\u1eddng k\u00ednh \u1edf ph\u00ad\u01a1ng ph\u00e1p l\u00ean l\u00edp cao so v\u1edbi ph\u00ad\u01a1ng ph\u00e1p kh\u00f4ng l\u00ean l\u00edp (ch\u1ec9 c\u00e0y \u0111\u1ea5t) l\u00e0 73% c\u00f2n v\u1ec1 chi\u1ec1u cao 23%. C\u00e1c ch\u1ec9 s\u1ed1 n\u00e0y n\u1ebfu so l\u00ean l\u00edp cao v\u1edbi l\u00ean l\u00edp th\u1ea5p t\u00ad\u01a1ng \u1ee9ng l\u00e0 98% v\u00e0 55%.<\/p>\n<p>+ Tr\u00e0m <em>M.viridiflora<\/em>: sinh tr\u00ad\u1edfng v\u00ad\u1ee3t v\u1ec1 \u0111\u00ad\u1eddng k\u00ednh c\u1ee7a ph\u00ad\u01a1ng ph\u00e1p l\u00ean l\u00edp th\u1ea5p v\u1edbi ph\u00ad\u01a1ng ph\u00e1p ch\u1ec9 c\u00e0y \u0111\u1ea5t l\u00e0 174% v\u00e0 chi\u1ec1u cao 12%.<\/p>\n<p>+ Tr\u00e0m <em>M.cajuputi<\/em>: vi\u1ec7c c\u00e0y \u0111\u1ea5t \u0111\u00e3 l\u00e0m t\u0103ng sinh tr\u00ad\u1edfng v\u1ec1 \u0111\u00ad\u1eddng k\u00ednh so v\u1edbi ph\u00ad\u01a1ng ph\u00e1p kh\u00f4ng l\u00ean l\u00edp (tr\u1ed3ng tr\u1ef1c ti\u1ebfp tr\u00ean n\u1ec1n \u0111\u1ea5t t\u1ef1 nhi\u00ean) 17% v\u00e0 v\u1ec1 chi\u1ec1u cao l\u00e0 14%.<\/p>\n<p>Nh\u00ecn chung bi\u1ec7n ph\u00e1p l\u00ean l\u00edp cao cho sinh tr\u00ad\u1edfng c\u1ee7a c\u00e1c xu\u1ea5t x\u1ee9 Tr\u00e0m t\u1ed1t h\u01a1n ph\u00ad\u01a1ng ph\u00e1p l\u00ean l\u00edp th\u1ea5p ho\u1eb7c kh\u00f4ng l\u00ean l\u00edp. Tuy nhi\u00ean, vi\u1ec7c l\u00ean l\u00edp cao ph\u1ea3i chi ph\u00ed nhi\u1ec1u. N\u1ebfu s\u1eed d\u1ee5ng m\u00e1y \u0111\u1ec3 l\u00ean l\u00edp, chi ph\u00ed l\u00e0m \u0111\u1ea5t s\u1ebd r\u1ebb h\u01a1n nh\u00adng \u0111\u1ecba h\u00ecnh ph\u1ea3i t\u00ad\u01a1ng \u0111\u1ed1i b\u1eb1ng v\u00e0 vi\u1ec7c l\u00e0m \u0111\u1ea5t ph\u1ea3i ho\u00e0n t\u1ea5t s\u1edbm tr\u00ad\u1edbc khi m\u00f9a l\u0169 \u0111\u1ebfn.<\/p>\n<p>\u0110\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi kh\u1ea3 n\u0103ng \u0111\u1ea7u t\u00ad tr\u1ed3ng r\u1eebng tr\u00e0m tr\u00ean v\u00f9ng \u0111\u1ea5t ph\u00e8n n\u00ean \u00e1p d\u1ee5ng ph\u00ad\u01a1ng ph\u00e1p l\u00ean l\u00edp th\u1ea5p.<\/p>\n<p><strong>3. Nghi\u00ean c\u1ee9u m\u1eadt \u0111\u1ed9 tr\u1ed3ng Tr\u00e0m<\/strong><\/p>\n<p>M\u1eadt \u0111\u1ed9 c\u00e2y tr\u1ed3ng c\u00f3 \u00fd ngh\u0129a r\u1ea5t l\u1edbn \u0111\u1ed1i v\u1edbi sinh tr\u00ad\u1edfng c\u1ee7a c\u00e2y r\u1eebng, li\u00ean quan \u0111\u1ebfn chi ph\u00ed tr\u1ed3ng r\u1eebng v\u00e0 quan tr\u1ecdng h\u01a1n l\u00e0 quy\u1ebft \u0111\u1ecbnh l\u00ad\u1ee3ng s\u1ea3n ph\u1ea9m r\u1eebng.<\/p>\n<p>Trong m\u1ed9t lu\u00e2n k\u00ec kinh doanh r\u1eebng t\u00ad\u01a1ng \u0111\u1ed1i ng\u1eafn, v\u1edbi c\u00e2y Tr\u00e0m \u0111\u1ec3 l\u00e0m c\u1eeb ti\u00eau chu\u1ea9n d\u00e0i \u00b34,2 m c\u00f3 \u0111\u00ad\u1eddng k\u00ednh \u0111\u1ea7u nh\u1ecf \u00b34cm, vi\u1ec7c l\u1ef1a ch\u1ecdn m\u1eadt \u0111\u1ed9 tr\u1ed3ng r\u1eebng ban \u0111\u1ea7u l\u00e0 h\u1ebft s\u1ee9c c\u1ea7n thi\u1ebft.<\/p>\n<p><em>M\u1ee5c \u0111\u00edch nghi\u00ean c\u1ee9u<\/em>: X\u00e1c \u0111\u1ecbnh m\u1eadt \u0111\u1ed9 tr\u1ed3ng r\u1eebng th\u00edch h\u1ee3p trong \u0111i\u1ec1u ki\u1ec7n r\u1eebng tr\u1ed3ng kh\u00f4ng qua t\u1ec9a th\u00ada v\u00e0 lu\u00e2n k\u1ef3 khai th\u00e1c t\u1eeb 5-7 n\u0103m.<\/p>\n<p><em>Ph\u00ad\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u<\/em>: Th\u00ed nghi\u1ec7m \u0111\u00ad\u1ee3c b\u1ed1 tr\u00ed theo kh\u1ed1i v\u1edbi 3 l\u1ea7n l\u1eb7p l\u1ea1i, g\u1ed3m cho 3 lo\u00e0i <em>M.leucadendra<\/em>, <em>M.viridiflora<\/em>, <em>M. cajuuti<\/em> v\u1edbi 3 lo\u1ea1i m\u1eadt \u0111\u1ed9 kh\u00e1c nhau. Di\u1ec7n t\u00edch \u00f4 th\u00ed nghi\u1ec7m 56m<sup>2<\/sup>.<\/p>\n<p>Th\u00ed nghi\u1ec7m \u0111\u00ad\u1ee3c th\u1ef1c hi\u1ec7n t\u1eeb th\u00e1ng 1\/1998 .<\/p>\n<p>K\u1ebft qu\u1ea3 sinh tr\u00ad\u1edfng \u0111\u00ad\u1ee3c t\u1ed5ng h\u1ee3p trong b\u1ea3ng 4 v\u00e0 5.<\/p>\n<p><strong><em>B\u1ea3ng 4. Sinh tr\u00ad\u1edfng c\u1ee7a Tr\u00e0m 2,5 tu\u1ed5i d\u00ad\u1edbi \u1ea3nh h\u00ad\u1edfng c\u1ee7a m\u1eadt \u0111\u1ed9 tr\u1ed3ng<\/em><\/strong><\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>Lo\u00e0i \/ xu\u1ea5t x\u1ee9<\/strong><\/td>\n<td><strong>M\u00e3 s\u1ed1<\/strong><\/p>\n<p><strong>trong TN<\/strong><\/td>\n<td><strong>A<\/strong><\/td>\n<td><strong>B<\/strong><\/td>\n<td><strong>C<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>M\u00cbt \u00ae\u00e9: 20 000 c\u00a9y\/ha<\/strong><\/td>\n<td><strong>M\u00cbt \u00ae\u00e9: 10 000 c\u00a9y\/ha<\/strong><\/td>\n<td><strong>M\u00cbt \u00ae\u00e9 : 6 666 c\u00a9y\/ha<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>C\u00f9 li: 1 x 0,5m<\/strong><\/td>\n<td><strong>C\u00f9 li : 1 x 1m<\/strong><\/td>\n<td><strong>C\u00f9 li : 1 x 1,5m<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>D<sub>1.3<\/sub><\/strong><\/td>\n<td><strong>H<\/strong><\/td>\n<td><strong>D<sub>1.3<\/sub><\/strong><\/td>\n<td><strong>H<\/strong><\/td>\n<td><strong>D<sub>1.3<\/sub><\/strong><\/td>\n<td><strong>H<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong><em>M.leucadenra<\/em><\/strong><\/td>\n<\/tr>\n<tr>\n<td>Weipa in Australia<\/td>\n<td>1<\/td>\n<td>2.58<\/td>\n<td>3.45<\/td>\n<td>2.78<\/td>\n<td>3.41<\/td>\n<td>3.07<\/td>\n<td>3.57<\/td>\n<\/tr>\n<tr>\n<td>Bensabach in PNG<\/td>\n<td>2<\/td>\n<td>3.43<\/td>\n<td>3.78<\/td>\n<td>3.2<\/td>\n<td>3.74<\/td>\n<td>3.6<\/td>\n<td>3.78<\/td>\n<\/tr>\n<tr>\n<td>Kuru Oriomo in PNG<\/td>\n<td>3<\/td>\n<td>3.22<\/td>\n<td>3.65<\/td>\n<td>3.44<\/td>\n<td>3.66<\/td>\n<td>3.55<\/td>\n<td>3.74<\/td>\n<\/tr>\n<tr>\n<td>CambridgeGuif in Australia<\/td>\n<td>4<\/td>\n<td>2.39<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>\u0110\u1ed3ng b\u1eb1ng s&ocirc;ng C\u1eedu Long (\u0110BSCL) c&oacute; di\u1ec7n t&iacute;ch \u0111\u1ea5t ph&egrave;n 1.600.263ha chi\u1ebfm 40,1% t\u1ed5ng di\u1ec7n t&iacute;ch t\u1ef1 nhi&ecirc;n c\u1ee7a v&ugrave;ng (\u0110\u1ed7 \u0110&igrave;nh S&acirc;m, 2001). Kh&aacute;c v\u1edbi sinh th&aacute;i v&ugrave;ng ng\u1eadp n&shy;\u1edbc ven bi\u1ec3n, v&ugrave;ng \u0111\u1ea5t chua ph&egrave;n c&oacute; th\u1eddi gian ng\u1eadp n&shy;\u1edbc k&eacute;o d&agrave;i t\u1eeb 3-4 th&aacute;ng, \u0111\u1ed9 s&acirc;u ng\u1eadp n&shy;\u1edbc trung b&igrave;nh t\u1eeb 0,8 &mdash;1,3 m. \u0110\u1eb7c \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a \u0111\u1ea5t l&agrave; b\u1ecb nhi\u1ec5m ph&egrave;n v\u1edbi \u0111\u1ed9 chua pH \u1edf t\u1ea7ng \u0111\u1ea5t 0-40 cm t\u1eeb 3.0-4.0 do \u0111&oacute; ch\u1ec9 c&oacute; r\u1ea5t &iacute;t c&aacute;c lo&agrave;i th\u1ef1c v\u1eadt c&acirc;y g\u1ed7 c&oacute; th\u1ec3 sinh tr&shy;\u1edfng t\u1ed1t tr&ecirc;n v&ugrave;ng \u0111\u1ea5t n&agrave;y.<\/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\/8624"}],"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=8624"}],"version-history":[{"count":2,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8624\/revisions"}],"predecessor-version":[{"id":19277,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8624\/revisions\/19277"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=8624"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=8624"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=8624"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}