Ch\u01b0\u01a1ng I - B\u00e0i 4: Vai tr\u00f2 c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 kho\u00e1ng<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lop12.edu.vn\/chuong-i-bai-4-vai-tro-cua-cac-nguyen-to-khoang\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ch\u01b0\u01a1ng I - B\u00e0i 4: Vai tr\u00f2 c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 kho\u00e1ng\" \/>\n<meta property=\"og:description\" content=\"B\u00e0i 1 (trang 24 SGK Sinh 11):\u00a0V\u00ec sao c\u1ea7n ph\u1ea3i b\u00f3n ph\u00e2n v\u1edbi li\u1ec1u l\u01b0\u1ee3ng h\u1ee3p l\u00ed t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ea5t, lo\u1ea1i ph\u00e2n b\u00f3n, gi\u1ed1ng v\u00e0 lo\u00e0i c\u00e2y tr\u1ed3ng? 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{"id":30378,"date":"2018-05-14T20:44:06","date_gmt":"2018-05-14T13:44:06","guid":{"rendered":"https:\/\/lop12.edu.vn\/?p=30378"},"modified":"2018-05-14T20:44:06","modified_gmt":"2018-05-14T13:44:06","slug":"chuong-i-bai-4-vai-tro-cua-cac-nguyen-to-khoang","status":"publish","type":"post","link":"https:\/\/lop12.edu.vn\/chuong-i-bai-4-vai-tro-cua-cac-nguyen-to-khoang\/","title":{"rendered":"Ch\u01b0\u01a1ng I – B\u00e0i 4: Vai tr\u00f2 c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 kho\u00e1ng"},"content":{"rendered":"

B\u00e0i 1 (trang 24 SGK Sinh 11):<\/b>\u00a0V\u00ec sao c\u1ea7n ph\u1ea3i b\u00f3n ph\u00e2n v\u1edbi li\u1ec1u l\u01b0\u1ee3ng h\u1ee3p l\u00ed t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ea5t, lo\u1ea1i ph\u00e2n b\u00f3n, gi\u1ed1ng v\u00e0 lo\u00e0i c\u00e2y tr\u1ed3ng?<\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

Ph\u00e2n b\u00f3n l\u00e0 ngu\u1ed3n dinh d\u01b0\u1ee1ng c\u1ea7n thi\u1ebft \u0111\u1ed1i v\u1edbi c\u00e2y tr\u1ed3ng. Tuy nhi\u00ean c\u1ea7n ph\u1ea3i b\u00f3n ph\u00e2n h\u1ee3p l\u00ed t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ea5t, lo\u1ea1i ph\u00e2n b\u00f3n, gi\u1ed1ng v\u00e0 lo\u00e0i c\u00e2y tr\u1ed3ng v\u00ec:<\/p>\n

– Trong \u0111\u1ea5t c\u0169ng \u0111\u00e3 ch\u1ee9a \u0111\u1ef1ng m\u1ed9t ph\u1ea7n c\u00e1c ch\u1ea5t dinh d\u01b0\u1ee1ng c\u1ea7n thi\u1ebft cho c\u00e2y tr\u1ed3ng. Khi b\u00f3n l\u01b0\u1ee3ng ph\u00e2n qu\u00e1 l\u1edbn, c\u00e2y d\u00f9ng kh\u00f4ng h\u1ebft s\u1ebd tr\u1edf th\u00e0nh l\u01b0\u1ee3ng d\u01b0 th\u1eeba trong \u0111\u1ea5t. Ch\u00fang l\u00e0m thay \u0111\u1ed5i t\u00ednh ch\u1ea5t c\u1ee7a \u0111\u1ea5t theo h\u01b0\u1edbng b\u1ea5t l\u1ee3i, gi\u1ebft ch\u1ebft c\u00e1c vi sinh v\u1eadt c\u00f3 l\u1ee3i, th\u1ea5m v\u00e0o ngu\u1ed3n n\u01b0\u1edbc ng\u1ea7m ho\u1eb7c b\u1ecb r\u1eeda tr\u00f4i xu\u1ed1ng c\u00e1c ao, h\u1ed3, s\u00f4ng, su\u1ed1i g\u00e2y \u00f4 nhi\u1ec5m ngu\u1ed3n n\u01b0\u1edbc.<\/p>\n

– M\u1ed7i lo\u1ea1i ph\u00e2n b\u00f3n c\u1ea7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho \u0111\u00fang lo\u1ea1i c\u00e2y tr\u1ed3ng v\u1edbi h\u00e0m l\u01b0\u1ee3ng, th\u1eddi gian v\u00e0 th\u1eddi \u0111i\u1ec3m ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 cao nh\u1ea5t. L\u01b0\u1ee3ng ph\u00e2n b\u00f3n t\u1ed3n d\u01b0 trong c\u01a1 th\u1ec3 th\u1ef1c v\u1eadt s\u1ebd d\u1ec5 d\u1eabn \u0111\u1ebfn t\u00e1c d\u1ee5ng kh\u00f4ng mong mu\u1ed1n v\u00e0 c\u00f3 th\u1ebb g\u00e2y ng\u1ed9 \u0111\u1ed9c cho sinh v\u1eadt s\u1eed d\u1ee5ng.<\/p>\n

– M\u1ed7i gi\u1ed1ng c\u00e2y tr\u1ed3ng c\u0169ng c\u1ea7n l\u01b0\u1ee3ng ph\u00e2n b\u00f3n kh\u00e1c nhau, th\u1eddi \u0111i\u1ec3m b\u00f3n ph\u00e2n ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi qu\u00e1 tr\u00ecnh sinh tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e2y, ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft,\u2026 \u0111\u1ec3 c\u00e2y c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 t\u1ed1t nh\u1ea5t v\u00e0 s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3<\/p>\n

– B\u00f3n ph\u00e2n h\u1ee3p l\u00ed gi\u00fap gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t v\u00e0 t\u0103ng ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m, \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 kinh t\u1ebf, gi\u1ea3m nguy c\u01a1 \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng.<\/p>\n

B\u00e0i 2 (trang 24 SGK Sinh 11):<\/b>\u00a0H\u00e3y li\u00ean h\u1ec7 v\u1edbi th\u1ef1c t\u1ebf, n\u00eau m\u1ed9t s\u1ed1 bi\u1ec7n ph\u00e1p gi\u00fap cho qu\u00e1 tr\u00ecnh chuy\u1ec3n h\u00f3a c\u00e1c ch\u1ea5t kho\u00e1ng \u1edf trong \u0111\u1ea5t t\u1eeb d\u1ea1ng kh\u00f4ng tan th\u00e0nh d\u1ea1ng h\u00f2a tan d\u1ec5 h\u1ea5p th\u1ee5 \u0111\u1ed1i v\u1edbi c\u00e2y.<\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

Trong \u0111\u1ea5t c\u00f3 c\u00e1c mu\u1ed1i kho\u00e1ng \u1edf d\u1ea1ng h\u00f2a tan v\u00e0 kh\u00f4ng h\u00f2a tan. R\u1ec5 c\u00e2y ch\u1ec9 c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 \u0111\u01b0\u1ee3c mu\u1ed1i kho\u00e1ng h\u00f2a tan. C\u00e1c nh\u00e2n t\u1ed1 m\u00f4i tr\u01b0\u1eddng (\u0111\u1ed9 tho\u00e1ng c\u1ee7a \u0111\u1ea5t, \u0111\u1ed9 pH, l\u01b0\u1ee3ng vi sinh v\u1eadt, nhi\u1ec7t \u0111\u1ed9,\u2026) \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 h\u00f2a tan c\u1ee7a mu\u1ed1i kho\u00e1ng. V\u00ec v\u1eady, trong th\u1ef1c t\u1ebf \u0111\u00e3 c\u00f3 r\u1ea5t nhi\u1ec1u bi\u1ec7n ph\u00e1p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 chuy\u1ec3n mu\u1ed1i kho\u00e1ng v\u1ec1 d\u1ea1ng h\u00f2a tan, gi\u00fap c\u00e2y d\u1ec5 d\u00e0ng h\u1ea5p th\u1ee5:<\/p>\n

– C\u00e0y l\u1eadt \u0111\u1ea5t<\/p>\n

– Ph\u01a1i \u1ea3i \u0111\u1ea5t<\/p>\n

– B\u00f3n v\u00f4i kh\u1eed tr\u00f9ng \u0111\u1ea5t<\/p>\n

– B\u1ed5 sung vi sinh v\u1eadt b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c ch\u1ebf ph\u1ea9m sinh h\u1ecdc<\/p>\n

– L\u00ean lu\u1ed1ng tr\u1ed3ng c\u00e2y, l\u00e0m r\u00e3nh tho\u00e1t n\u01b0\u1edbc<\/p>\n

– T\u01b0\u1edbi ti\u00eau h\u1ee3p l\u00ed<\/p>\n

– X\u1ec9a l\u1eadt \u0111\u1ea5t quanh c\u00e1c g\u1ed1c c\u00e2y tr\u1ed3ng<\/p>\n

– L\u00e0m c\u1ecf<\/p>\n

– B\u00f3n ph\u00e2n ph\u1ed1i h\u1ee3p,\u2026<\/p>\n","protected":false},"excerpt":{"rendered":"

B\u00e0i 1 (trang 24 SGK Sinh 11):\u00a0V\u00ec sao c\u1ea7n ph\u1ea3i b\u00f3n ph\u00e2n v\u1edbi li\u1ec1u l\u01b0\u1ee3ng h\u1ee3p l\u00ed t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ea5t, lo\u1ea1i ph\u00e2n b\u00f3n, gi\u1ed1ng v\u00e0 lo\u00e0i c\u00e2y tr\u1ed3ng? L\u1eddi gi\u1ea3i: Ph\u00e2n b\u00f3n l\u00e0 ngu\u1ed3n dinh d\u01b0\u1ee1ng c\u1ea7n thi\u1ebft \u0111\u1ed1i v\u1edbi c\u00e2y tr\u1ed3ng. Tuy nhi\u00ean c\u1ea7n ph\u1ea3i b\u00f3n ph\u00e2n h\u1ee3p l\u00ed t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ea5t, […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1324],"tags":[1486,1485],"yoast_head":"\nCh\u01b0\u01a1ng I - B\u00e0i 4: Vai tr\u00f2 c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 kho\u00e1ng<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lop12.edu.vn\/chuong-i-bai-4-vai-tro-cua-cac-nguyen-to-khoang\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ch\u01b0\u01a1ng I - B\u00e0i 4: Vai tr\u00f2 c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 kho\u00e1ng\" \/>\n<meta property=\"og:description\" content=\"B\u00e0i 1 (trang 24 SGK Sinh 11):\u00a0V\u00ec sao c\u1ea7n ph\u1ea3i b\u00f3n ph\u00e2n v\u1edbi li\u1ec1u l\u01b0\u1ee3ng h\u1ee3p l\u00ed t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ea5t, lo\u1ea1i ph\u00e2n b\u00f3n, gi\u1ed1ng v\u00e0 lo\u00e0i c\u00e2y tr\u1ed3ng? 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