{"id":9002,"date":"2009-04-20T08:13:51","date_gmt":"2009-04-20T01:13:51","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2009\/04\/su-dung-tam-dem-cho-viec-chuan-bi-dat-trong-rung-tren-vung-dat-lay-thut-tay-nam-bo\/"},"modified":"2013-10-06T09:01:03","modified_gmt":"2013-10-06T02:01:03","slug":"su-dung-tam-dem-cho-viec-chuan-bi-dat-trong-rung-tren-vung-dat-lay-thut-tay-nam-bo","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/su-dung-tam-dem-cho-viec-chuan-bi-dat-trong-rung-tren-vung-dat-lay-thut-tay-nam-bo\/","title":{"rendered":"S\u1eed d\u1ee5ng t\u1ea5m \u0111\u1ec7m cho vi\u1ec7c chu\u1ea9n b\u1ecb \u0111\u1ea5t tr\u1ed3ng r\u1eebng tr\u00ean v\u00f9ng \u0111\u1ea5t l\u1ea7y th\u1ee5t T\u00e2y Nam b\u1ed9"},"content":{"rendered":"<\/p>\n

Nguy\u1ec5n Can, \u0110\u00e0o V\u0169<\/strong> <\/p>\n

Trung t\u00e2m Nghi\u00ean c\u1ee9u v\u00e0 chuy\u1ec3n giao C\u00f4ng ngh\u1ec7 C\u00f4ng nghi\u1ec7p r\u1eebng<\/em> <\/p>\n

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

T\u00d3M T\u1eaeT<\/strong> <\/p>\n

B\u00e0i b\u00e1o ph\u00e2n t\u00edch v\u00e0 n\u00eau ph\u01b0\u01a1ng ph\u00e1p t\u00ednh to\u00e1n thi\u1ebft k\u1ebf t\u1ea5m \u0111\u1ec7m ch\u1ed1ng l\u1ea7y cho c\u00e1c lo\u1ea1i m\u00e1y x\u00fac khi l\u00ean lu\u1ed1ng c\u1ea3i t\u1ea1o \u0111\u1ea5t ph\u00e8n t\u1ea1i mi\u1ec1n T\u00e2y Nam B\u1ed9. \u0110\u1ec1 t\u00e0i \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m \u00e1p d\u1ee5ng t\u1ea1i Long An, k\u1ebft qu\u1ea3 ban \u0111\u1ea7u l\u00e0 kh\u1ea3 quan. <\/p>\n

T\u1eeb kho\u00e1: <\/strong>\u0110\u1ea5t ph\u00e8n, m\u00e1y x\u00fac, t\u1ea5m \u0111\u1ec7m <\/p>\n

\u0110\u1eb6T V\u1ea4N \u0110\u1ec0<\/strong> <\/p>\n

\u0110\u1ea5t ph\u00e8n \u1edf \u0111\u1ed3ng b\u1eb1ng s\u00f4ng C\u1eedu Long chi\u1ebfm t\u1edbi 13.000km2 <\/sup>, \u0111\u01b0\u1ee3c ph\u00e2n l\u00e0m hai lo\u1ea1i ch\u00ednh l\u00e0 “\u0111\u1ea5t ph\u00e8n ti\u1ec1m n\u0103ng”, ch\u1ee9a l\u01b0\u1ee3ng Sulfit cao, ch\u01b0a g\u00e2y t\u00e1c h\u1ea1i cho c\u00e2y tr\u1ed3ng, v\u00e0 \u0111\u1ea5t ph\u00e8n ho\u1ea1t \u0111\u1ed9ng ch\u1ee9a s\u1ea3n ph\u1ea9m c\u00f3 t\u00ednh ph\u00e8n sinh ra t\u1eeb s\u1ef1 oxy ho\u00e1 c\u1ee7a c\u00e1c lo\u1ea1i Sulfit, c\u00f3 h\u1ea1i cho c\u00e2y tr\u1ed3ng. V\u1edbi \u0111\u1ea5t ph\u00e8n ho\u1ea1t \u0111\u1ed9ng (sau \u0111\u00e2y g\u1ecdi t\u1eaft l\u00e0 \u0111\u1ea5t ph\u00e8n), c\u00f3 th\u1ec3 c\u1ea3i t\u1ea1o \u0111\u1ea5t canh t\u00e1c b\u1eb1ng ba bi\u1ec7n ph\u00e1p: Bi\u1ec7n ph\u00e1p ho\u00e1 h\u1ecdc, bi\u1ec7n ph\u00e1p sinh h\u1ecdc v\u00e0 bi\u1ec7n ph\u00e1p c\u01a1 h\u1ecdc, trong \u0111\u00f3 bi\u1ec7n ph\u00e1p c\u01a1 h\u1ecdc \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u nh\u1ea5t. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y d\u00f9ng c\u00f4ng c\u1ee5 t\u1ea1o lu\u1ed1ng (th\u01b0\u1eddng g\u1ecdi l\u00e0 l\u00ean li\u1ebfp) k\u1ebft h\u1ee3p v\u1edbi k\u00eanh gi\u1eef n\u01b0\u1edbc \u0111\u1ec3 thau chua r\u1eeda m\u1eb7n \u1edf t\u1ea7ng tr\u00ean v\u00e0 ch\u1ed1ng oxy ho\u00e1 c\u1ee7a t\u1ea7ng ph\u00e8n ti\u1ec1m t\u00e0ng ph\u00eda d\u01b0\u1edbi; Bi\u1ec7n ph\u00e1p l\u00ean li\u1ebfp th\u1ee7 c\u00f4ng tr\u01b0\u1edbc kia ch\u1ec9 t\u1ea1o \u0111\u01b0\u1ee3c nh\u1eefng li\u1ebfp th\u1ea5p v\u00e0 r\u1ed9ng kho\u1ea3ng 1m, cho n\u0103ng su\u1ea5t v\u00e0 hi\u1ec7u qu\u1ea3 th\u1ea5p; hi\u1ec7n nay gi\u1ea3i ph\u00e1p l\u00ean li\u1ebfp b\u1eb1ng m\u00e1y x\u00fac \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i. <\/p>\n

C\u1eadp nh\u1eadt t\u1ea1i \u0111\u00e2y<\/a><\/strong> <\/p>\n","protected":false},"excerpt":{"rendered":"

<\/p>\n

\n\u0110\u1ea5t phèn \u1edf \u0111\u1ed3ng b\u1eb1ng sông C\u1eedu Long chi\u1ebfm t\u1edbi 13.000km2<\/sup>, \u0111\u01b0\u1ee3c phân làm hai lo\u1ea1i chính là “\u0111\u1ea5t phèn ti\u1ec1m n\u0103ng”, ch\u1ee9a l\u01b0\u1ee3ng Sulfit cao, ch\u01b0a gây tác h\u1ea1i cho cây tr\u1ed3ng, và \u0111\u1ea5t phèn ho\u1ea1t \u0111\u1ed9ng ch\u1ee9a s\u1ea3n ph\u1ea9m có tính phèn sinh ra t\u1eeb s\u1ef1 oxy hoá c\u1ee7a các lo\u1ea1i Sulfit, có h\u1ea1i cho cây tr\u1ed3ng. V\u1edbi \u0111\u1ea5t phèn ho\u1ea1t \u0111\u1ed9ng (sau \u0111ây g\u1ecdi t\u1eaft là \u0111\u1ea5t phèn), có th\u1ec3 c\u1ea3i t\u1ea1o \u0111\u1ea5t canh tác b\u1eb1ng ba bi\u1ec7n pháp:  <\/span>Bi\u1ec7n pháp hoá h\u1ecdc, bi\u1ec7n pháp sinh h\u1ecdc và bi\u1ec7n pháp c\u01a1 h\u1ecdc, trong \u0111ó bi\u1ec7n pháp c\u01a1 h\u1ecdc \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u nh\u1ea5t. Ph\u01b0\u01a1ng pháp này dùng công c\u1ee5 <\/span>t\u1ea1o lu\u1ed1ng (th\u01b0\u1eddng g\u1ecdi là lên li\u1ebfp) k\u1ebft h\u1ee3p v\u1edbi kênh gi\u1eef n\u01b0\u1edbc \u0111\u1ec3 thau chua r\u1eeda m\u1eb7n \u1edf t\u1ea7ng trên và ch\u1ed1ng oxy hoá c\u1ee7a t\u1ea7ng phèn ti\u1ec1m tàng phía d\u01b0\u1edbi; Bi\u1ec7n pháp lên li\u1ebfp th\u1ee7 công tr\u01b0\u1edbc kia ch\u1ec9 t\u1ea1o \u0111\u01b0\u1ee3c nh\u1eefng li\u1ebfp th\u1ea5p và r\u1ed9ng kho\u1ea3ng 1m, cho n\u0103ng su\u1ea5t và hi\u1ec7u qu\u1ea3 th\u1ea5p; hi\u1ec7n nay gi\u1ea3i pháp lên li\u1ebfp b\u1eb1ng máy xúc \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng rãi.<\/span><\/span>\n<\/p>\n

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