{"id":9306,"date":"2021-11-21T16:26:42","date_gmt":"2021-11-21T09:26:42","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=9306"},"modified":"2021-11-21T17:16:00","modified_gmt":"2021-11-21T10:16:00","slug":"vi-sao-khong-nen-dung-nhieu-phan-hoa-hoc","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/vi-sao-khong-nen-dung-nhieu-phan-hoa-hoc\/","title":{"rendered":"V\u00ec sao kh\u00f4ng n\u00ean d\u00f9ng nhi\u1ec1u ph\u00e2n h\u00f3a h\u1ecdc?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">N\u00f4ng d\u00e2n b\u00f3n ph\u00e2n h\u00f3a h\u1ecdc l\u00e0 \u0111\u1ec3 t\u0103ng th\u00eam ch\u1ea5t dinh d\u01b0\u1ee1ng cho hoa m\u00e0u, mong thu \u0111\u01b0\u1ee3c nhi\u1ec1u n\u00f4ng s\u1ea3n. Nh\u01b0ng l\u01b0\u1ee3ng d\u00f9ng ph\u00e2n h\u00f3a h\u1ecdc ph\u1ea3i th\u00edch h\u1ee3p, d\u00f9ng nhi\u1ec1u th\u00ec hi\u1ec7u qu\u1ea3 s\u1ebd ng\u01b0\u1ee3c l\u1ea1i. B\u1ea5t k\u00ec lo\u1ea1i ph\u00e2n h\u00f3a h\u1ecdc n\u00e0o c\u0169ng kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c v\u1eadt h\u1ea5p thu v\u00e0 l\u1ee3i d\u1ee5ng to\u00e0n b\u1ed9. Hi\u1ec7u su\u1ea5t l\u1ee3i d\u1ee5ng ph\u00e2n h\u00f3a h\u1ecdc, ph\u00e2n \u0111\u1ea1m kho\u1ea3ng 30% &#8211; 60%, ph\u00e2n l\u00e2n kho\u1ea3ng 3% &#8211; 25%, ph\u00e2n kali kho\u1ea3ng 30% &#8211; 60%. N\u1ebfu d\u00f9ng qu\u00e1 m\u1ee9c th\u00ec m\u1ed9t l\u01b0\u1ee3ng l\u1edbn ph\u00e2n h\u00f3a h\u1ecdc do kh\u00f4ng \u0111\u01b0\u1ee3c c\u00e2y h\u1ea5p th\u1ee5 m\u00e0 tr\u00f4i \u0111i. Khi l\u01b0\u1ee3ng ph\u00e2n h\u00f3a h\u1ecdc n\u00e0y c\u00f3 ch\u1ee9a nit\u01a1, ph\u00f4tpho ch\u1ea3y v\u00e0o s\u00f4ng ng\u00f2i ho\u1eb7c ao h\u1ed3 s\u1ebd khi\u1ebfn cho n\u01b0\u1edbc gi\u00e0u dinh d\u01b0\u1ee1ng qu\u00e1 m\u1ee9c, d\u1eabn \u0111\u1ebfn th\u1ef1c v\u1eadt th\u1ee7y sinh nh\u01b0 lo\u00e0i t\u1ea3o t\u0103ng r\u1ea5t nhanh. Ngo\u00e0i ra khi d\u00f9ng m\u1ed9t lo\u1ea1i ph\u00e2n h\u00f3a h\u1ecdc n\u00e0o \u0111\u00f3 l\u00e2u d\u00e0i s\u1ebd khi\u1ebfn cho k\u1ebft c\u1ea5u \u0111\u1ea5t b\u1ecb ph\u00e1 ho\u1ea1i, l\u00e0m cho ch\u1ea5t d\u00ednh c\u1ee7a \u0111\u1ea5t ph\u00e2n t\u00e1n, axit h\u00f3a, \u0111\u1ea5t b\u1ecb c\u1ee9ng v\u00f3n, \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn s\u1ea3n l\u01b0\u1ee3ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng n\u00f4ng s\u1ea3n. L\u00fac \u0111\u00f3 n\u00f4ng d\u00e2n s\u1ebd th\u1ea5y r\u00f5, d\u00f9ng ph\u00e2n h\u00f3a h\u1ecdc c\u00e0ng nhi\u1ec1u th\u00ec hi\u1ec7u qu\u1ea3 thu ho\u1ea1ch c\u00e0ng th\u1ea5p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f9ng ph\u00e2n h\u00f3a h\u1ecdc qu\u00e1 m\u1ee9c c\u00f2n d\u1eabn \u0111\u1ebfn trong th\u1ef1c ph\u1ea9m, th\u1ee9c \u0103n gia s\u00fac v\u00e0 n\u01b0\u1edbc u\u1ed1ng ch\u1ee9a ch\u1ea5t \u0111\u1ed9c t\u0103ng l\u00ean. V\u00ed d\u1ee5 axit nit\u01a1r\u01a1 (mu\u1ed1i l\u00e0 nitric), \u0111\u1ed9 \u0111\u1ed9c h\u1ea1i c\u1ee7a n\u00f3 c\u00f2n cao g\u1ea5p 5 \u2013 10 l\u1ea7n mu\u1ed1i nitrat c\u1ee7a axit nitric. Mu\u1ed1i c\u1ee7a axit nit\u01a1r\u01a1 c\u00f9ng v\u1edbi amin h\u1ee3p th\u00e0nh h\u1ee3p ch\u1ea5t c\u00f3 g\u1ed1c N \u2013 nitric, \u0111\u00f3 l\u00e0 nh\u1eefng ch\u1ea5t r\u1ea5t m\u1ea1nh \u0111\u1ec3 g\u00e2y n\u00ean c\u00e1c kh\u1ed1i u. Tr\u00ean th\u1ebf gi\u1edbi \u0111\u00e3 t\u1eebng x\u1ea3y ra s\u1ef1 ki\u1ec7n do th\u1ef1c ph\u1ea9m v\u00e0 th\u1ee9c \u0103n ch\u0103n nu\u00f4i c\u00f3 h\u00e0m l\u01b0\u1ee3ng nitric qu\u00e1 cao m\u00e0 g\u00e2y ra ng\u1ed9 \u0111\u1ed9c cho tr\u1ebb em v\u00e0 gia s\u00fac. Trong ph\u00e2n h\u00f3a h\u1ecdc c\u00f2n ch\u1ee9a m\u1ed9t s\u1ed1 t\u1ea1p ch\u1ea5t kh\u00e1c, c\u0169ng g\u00e2y n\u00ean \u00f4 nhi\u1ec5m cho m\u00f4i tr\u01b0\u1eddng. Trong \u0111\u00f3 kho\u00e1ng ch\u1ea5t photpho ch\u1ee9a 1 ppm \u2013 100 ppm ca\u0111imi (ppm l\u00e0 1 ph\u1ea7n tri\u1ec7u) v\u00e0 ch\u1ee9a 5 \u2013 10 ppm ch\u00ec.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f9ng ph\u00e2n h\u00f3a h\u1ecdc qu\u00e1 m\u1ee9c c\u00f2n g\u00e2y n\u00ean h\u00e0m l\u01b0\u1ee3ng h\u00f3a ch\u1ea5t oxit nit\u01a1 trong kh\u00f4ng kh\u00ed t\u0103ng cao. V\u00ec sao nh\u01b0 v\u1eady? Nguy\u00ean do l\u00e0 trong ph\u00e2n \u0111\u1ea1m d\u00f9ng \u0111\u1ec3 b\u00f3n ru\u1ed9ng, c\u00f3 m\u1ed9t l\u01b0\u1ee3ng l\u1edbn nit\u01a1 tr\u1ef1c ti\u1ebfp t\u1eeb \u0111\u1ea5t b\u1ed1c l\u00ean kh\u00f4ng kh\u00ed. Ngo\u00e0i ra m\u1ed9t ph\u1ea7n l\u1edbn kh\u00ed nit\u01a1 d\u01b0\u1edbi d\u1ea1ng h\u1eefu c\u01a1 ho\u1eb7c v\u00f4 c\u01a1 x\u00e2m nh\u1eadp v\u00e0o \u0111\u1ea5t, d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a vi khu\u1ea9n ch\u00fang s\u1ebd tr\u1edf th\u00e0nh nh\u1eefng ch\u1ea5t r\u1ea5t kh\u00f3 tan, kh\u00f3 h\u1ea5p th\u1ee5 v\u00e0 h\u1ee3p v\u1edbi nit\u01a1 \u1edf tr\u1ea1ng th\u00e1i ho\u00e0 tan trong n\u01b0\u1edbc chuy\u1ec3n h\u00f3a th\u00e0nh nh\u1eefng h\u1ee3p ch\u1ea5t c\u1ee7a nit\u01a1 v\u00e0 oxit nit\u01a1 bay v\u00e0o kh\u00f4ng kh\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec v\u1eady \u0111\u1ec3 ng\u0103n ng\u1eeba \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng, ng\u0103n ng\u1eeba k\u1ebft c\u1ea5u \u0111\u1ea5t b\u1ecb ph\u00e1 ho\u1ea1i, n\u00ean qu\u1ea3n l\u00ed, kh\u1ed1ng ch\u1ebf d\u00f9ng ph\u00e2n h\u00f3a h\u1ecdc, kh\u00f4ng n\u00ean l\u1ea1m d\u1ee5ng nhi\u1ec1u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb kho\u00e1: Ph\u00e2n h\u00f3a h\u1ecdc; Gi\u00e0u dinh d\u01b0\u1ee1ng.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>N\u00f4ng d\u00e2n b\u00f3n ph\u00e2n h\u00f3a h\u1ecdc l\u00e0 \u0111\u1ec3 t\u0103ng th\u00eam ch\u1ea5t dinh d\u01b0\u1ee1ng cho hoa m\u00e0u, mong thu \u0111\u01b0\u1ee3c nhi\u1ec1u n\u00f4ng s\u1ea3n. Nh\u01b0ng l\u01b0\u1ee3ng d\u00f9ng ph\u00e2n h\u00f3a h\u1ecdc ph\u1ea3i th\u00edch h\u1ee3p, d\u00f9ng nhi\u1ec1u th\u00ec hi\u1ec7u qu\u1ea3 s\u1ebd ng\u01b0\u1ee3c l\u1ea1i. B\u1ea5t k\u00ec lo\u1ea1i ph\u00e2n h\u00f3a h\u1ecdc n\u00e0o c\u0169ng kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c v\u1eadt h\u1ea5p thu v\u00e0 [&hellip;]<\/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-9306","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\/9306","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=9306"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9306\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=9306"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=9306"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=9306"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}