Trong n\u01b0\u1edbc ph\u1ebf th\u1ea3i h\u1eefu c\u01a1 c\u1ee7a n\u01b0\u1edbc sinh ho\u1ea1t v\u00e0 c\u00e1c nh\u00e0 m\u00e1y th\u1ef1c ph\u1ea9m, in, nhu\u1ed9m v\u1ea3i, s\u1ea3n xu\u1ea5t gi\u1ea5y ch\u1ee9a r\u1ea5t nhi\u1ec1u ch\u1ea5t nh\u01b0 m\u1ee1, pr\u00f4tein, v.v\u2026 \u0110\u1ec3 n\u00e2ng cao s\u1ea3n l\u01b0\u1ee3ng c\u00e2y tr\u1ed3ng, trong n\u00f4ng nghi\u1ec7p \u0111\u00e3 d\u00f9ng m\u1ed9t l\u01b0\u1ee3ng l\u1edbn ph\u00e2n \u0111\u1ea1m, ph\u00e2n l\u00e2n (ph\u00f4tphat) trong \u0111\u00f3 c\u00e2y tr\u1ed3ng h\u1ea5p thu ch\u01b0a \u0111\u1ebfn m\u1ed9t n\u1eeda, ph\u1ea7n c\u00f2n l\u1ea1i l\u1eabn v\u00e0o n\u01b0\u1edbc ch\u1ea3y ra s\u00f4ng, bi\u1ec3n.<\/p>\n\n\n\n
V\u00ec trong n\u01b0\u1edbc th\u1ea3i ch\u1ee9a ph\u1ea7n l\u1edbn nit\u01a1, ph\u00f4tpho, kali l\u00e0m cho th\u00e0nh ph\u1ea7n dinh d\u01b0\u1ee1ng c\u1ee7a n\u01b0\u1edbc “gi\u00e0u” l\u00ean. C\u00e1c sinh v\u1eadt thu\u1ef7 sinh c\u1ea7n \u0111\u1ebfn nh\u1eefng nguy\u00ean t\u1ed1 dinh d\u01b0\u1ee1ng nh\u01b0 nit\u01a1, ph\u00f4tpho, kali m\u1edbi sinh tr\u01b0\u1edfng \u0111\u01b0\u1ee3c. Dinh d\u01b0\u1ee1ng v\u1eeba \u0111\u1ee7 s\u1ebd gi\u00fap cho ch\u00fang ph\u00e1t tri\u1ec3n b\u00ecnh th\u01b0\u1eddng. Nh\u01b0ng n\u1ebfu c\u00e1c nguy\u00ean t\u1ed1 dinh d\u01b0\u1ee1ng n\u00e0y qu\u00e1 nhi\u1ec1u th\u00ec m\u1ed9t s\u1ed1 sinh v\u1eadt trong n\u01b0\u1edbc nh\u01b0 vi sinh v\u1eadt, c\u00e1c lo\u00e0i t\u1ea3o s\u1ebd sinh s\u00f4i n\u1ea3y n\u1edf m\u1ea1nh. Lo\u00e0i t\u1ea3o b\u1eaft \u0111\u1ea7u ph\u00e1t tri\u1ec3n lan tr\u00e0n, chi\u1ebfm ph\u1ea7n l\u1edbn khu v\u1ef1c n\u01b0\u1edbc. Nh\u1eefng nguy\u00ean t\u1ed1 dinh d\u01b0\u1ee1ng nh\u01b0 nit\u01a1, ph\u00f4tpho, v.v\u2026 sau khi x\u00e2m nh\u1eadp v\u00e0o n\u01b0\u1edbc, c\u00e1c lo\u00e0i vi sinh v\u1eadt v\u00e0 t\u1ea3o trong n\u01b0\u1edbc s\u1ebd \u0103n ch\u00fang r\u1ea5t nhi\u1ec1u. Khi vi sinh v\u1eadt v\u00e0 t\u1ea3o ph\u00e1t tri\u1ec3n nhanh s\u1ebd \u0111\u00f2i h\u1ecfi ti\u00eau hao m\u1ed9t l\u01b0\u1ee3ng l\u1edbn oxi trong n\u01b0\u1edbc. Nh\u01b0 ch\u00fang ta \u0111\u00e3 bi\u1ebft, trong kh\u00f4ng kh\u00ed c\u00f3 nhi\u1ec1u oxi, trong n\u01b0\u1edbc c\u0169ng c\u00f3 oxi, nh\u01b0ng s\u1ed1 l\u01b0\u1ee3ng oxi tan trong n\u01b0\u1edbc c\u00f3 h\u1ea1n. Trong 1m3 n\u01b0\u1edbc ch\u1ec9 h\u00f2a tan kho\u1ea3ng 9 gam oxi. Do vi sinh v\u1eadt v\u00e0 c\u00e1c lo\u1ea1i t\u1ea3o ti\u00eau hao h\u1ebft oxi trong n\u01b0\u1edbc, n\u00ean c\u00e1, t\u00f4m, cua v\u00e0 nh\u1eefng sinh v\u1eadt kh\u00e1c v\u00ec thi\u1ebfu oxi m\u00e0 ch\u1ebft.<\/p>\n\n\n\n
\u00d4xi tan trong n\u01b0\u1edbc gi\u1ea3m th\u1ea5p d\u1ea7n, th\u1eadm ch\u00ed c\u1ea1n ki\u1ec7t, vi khu\u1ea9n hi\u1ebfm kh\u00ed s\u1ebd th\u1eeba c\u01a1 ph\u00e1t tri\u1ec3n m\u1ea1nh m\u1ebd. Ch\u00fang s\u1ebd ph\u00e2n gi\u1ea3i h\u1ea7u h\u1ebft c\u00e1c ch\u1ea5t h\u1eefu c\u01a1, gi\u1ea3i ph\u00f3ng nh\u1eefng ch\u1ea5t kh\u00ed \u0111\u1ed9c h\u1ea1i nh\u01b0 kh\u00ed amoniac, sunfua, hydrocacbon, thioalchol, khi\u1ebfn cho n\u01b0\u1edbc tr\u1edf n\u00ean th\u1ed1i v\u00e0 \u0111\u1ee5c. Do \u0111\u00f3 c\u1ea3 d\u00f2ng s\u00f4ng hay h\u1ed3 tr\u1edf th\u00e0nh s\u00f4ng th\u1ed1i v\u00e0 h\u1ed3 ch\u1ebft.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: Gi\u00e0u dinh d\u01b0\u1ee1ng ho\u00e1; Ho\u00e0 tan oxi. Sinh v\u1eadt thu\u1ef7 sinh; Lo\u00e0i t\u1ea3o;<\/p>\n","protected":false},"excerpt":{"rendered":"
Trong n\u01b0\u1edbc ph\u1ebf th\u1ea3i h\u1eefu c\u01a1 c\u1ee7a n\u01b0\u1edbc sinh ho\u1ea1t v\u00e0 c\u00e1c nh\u00e0 m\u00e1y th\u1ef1c ph\u1ea9m, in, nhu\u1ed9m v\u1ea3i, s\u1ea3n xu\u1ea5t gi\u1ea5y ch\u1ee9a r\u1ea5t nhi\u1ec1u ch\u1ea5t nh\u01b0 m\u1ee1, pr\u00f4tein, v.v\u2026 \u0110\u1ec3 n\u00e2ng cao s\u1ea3n l\u01b0\u1ee3ng c\u00e2y tr\u1ed3ng, trong n\u00f4ng nghi\u1ec7p \u0111\u00e3 d\u00f9ng m\u1ed9t l\u01b0\u1ee3ng l\u1edbn ph\u00e2n \u0111\u1ea1m, ph\u00e2n l\u00e2n (ph\u00f4tphat) trong \u0111\u00f3 c\u00e2y tr\u1ed3ng h\u1ea5p […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,17],"tags":[],"class_list":["post-9424","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-moi-truong"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9424","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=9424"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9424\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=9424"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=9424"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=9424"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}