Nh\u00e2n lo\u1ea1i \u0111\u00e3 b\u01b0\u1edbc v\u00e0o th\u1eddi \u0111\u1ea1i v\u0169 tr\u1ee5. C\u00e1c nh\u00e0 khoa h\u1ecdc kh\u00f4ng ti\u1ebfc s\u1ee9c m\u00ecnh c\u1ed1 g\u1eafng \u0111\u01b0a nhi\u1ec1u th\u00ed nghi\u1ec7m v\u00e0 ho\u1ea1t \u0111\u1ed9ng s\u1ea3n xu\u1ea5t v\u00e0o v\u0169 tr\u1ee5. \u0110\u00f3 l\u00e0 v\u00ec sao? Nguy\u00ean l\u00e0 trong v\u0169 tr\u1ee5 c\u00f3 nhi\u1ec1u \u0111i\u1ec1u ki\u1ec7n \u01b0u vi\u1ec7t m\u00e0 tr\u00ean m\u1eb7t \u0111\u1ea5t kh\u00f4ng c\u00f3.<\/p>\n\n\n\n
M\u00f4i tr\u01b0\u1eddng v\u0169 tr\u1ee5 \u0111\u1ed9 trong s\u1ea1ch cao, \u0111\u1ed9 ch\u00e2n kh\u00f4ng cao v\u00e0 tr\u1ecdng l\u1ef1c y\u1ebfu l\u00e0 “c\u1ee7a qu\u00fd” tr\u1eddi ban cho nh\u00e2n lo\u1ea1i. Trong v\u0169 tr\u1ee5 v\u1eeba kh\u00f4ng c\u00f3 kh\u00f4ng kh\u00ed, v\u1eeba kh\u00f4ng b\u1ecb \u00f4 nhi\u1ec5m nghi\u00eam tr\u1ecdng nh\u01b0 tr\u00ean Tr\u00e1i \u0110\u1ea5t, \u0111\u1eb7c bi\u1ec7t l\u00e0 t\u00e0i nguy\u00ean tr\u1ecdng l\u1ef1c y\u1ebfu \u0111\u1ed1i v\u1edbi g\u00e2y gi\u1ed1ng n\u00f4ng nghi\u1ec7p v\u00e0 s\u1ea3n xu\u1ea5t c\u00f4ng nghi\u1ec7p c\u00f3 m\u1ed9t \u00fd ngh\u0129a v\u00f4 c\u00f9ng quan tr\u1ecdng. Trung Qu\u1ed1c t\u1eeb n\u0103m 1987 l\u1ee3i d\u1ee5ng c\u00e1c v\u1ec7 tinh l\u00e0m vi\u1ec7c trong v\u0169 tr\u1ee5 r\u1ed3i sau \u0111\u00f3 quay v\u1ec1 m\u00e0 \u0111\u00e3 ti\u1ebfn h\u00e0nh nhi\u1ec1u th\u00ed nghi\u1ec7m g\u00e2y gi\u1ed1ng, l\u1ee3i d\u1ee5ng m\u00f4i tr\u01b0\u1eddng v\u0169 tr\u1ee5 \u0111\u1ec3 c\u1ea3i t\u1ea1o gi\u1ed1ng. C\u00e1c nh\u00e0 khoa h\u1ecdc ph\u00e1t hi\u1ec7n m\u00f4i tr\u01b0\u1eddng v\u0169 tr\u1ee5 c\u00f3 t\u00e1c d\u1ee5ng r\u1ea5t l\u1edbn \u0111\u1ed1i v\u1edbi c\u1ea3i t\u1ea1o gi\u1ed1ng, s\u1ea3n xu\u1ea5t lo\u1ea1i gi\u1ed1ng bi\u1ebfn d\u1ecb \u0111\u1ec3 c\u00f3 th\u1ec3 nhanh ch\u00f3ng t\u00ecm ra lo\u1ea1i gi\u1ed1ng m\u1edbi c\u00f3 t\u1ed1c \u0111\u1ed9 ph\u00e1t tri\u1ec3n nhanh, \u0111i t\u1eaft, thu \u0111\u01b0\u1ee3c nh\u1eefng lo\u1ea1i gi\u1ed1ng s\u1ea3n l\u01b0\u1ee3ng cao, ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t v\u00e0 t\u00ednh kh\u00e1ng b\u1ec7nh t\u1ed1t. Nh\u1edd th\u00ed nghi\u1ec7m tr\u00ean v\u0169 tr\u1ee5 \u0111\u00e3 xu\u1ea5t hi\u1ec7n m\u1ed9t lo\u1ea1i gi\u1ed1ng l\u00faa m\u1edbi c\u00f3 th\u1eddi gian l\u00e0m \u0111\u00f2ng r\u00fat ng\u1eafn t\u1eeb 5 – 21 ng\u00e0y, h\u1ea1t to, ch\u00edn s\u1edbm, s\u1ea3n l\u01b0\u1ee3ng cao; ti\u1ec3u m\u1ea1ch qua x\u1eed l\u00fd tr\u00ean con t\u00e0u v\u0169 tr\u1ee5 \u0111\u00e3 \u0111\u01b0a l\u1ea1i lo\u1ea1i gi\u1ed1ng c\u00f3 s\u1ea3n l\u01b0\u1ee3ng cao h\u01a1n 8,6%, c\u00e2y \u1edbt xanh g\u00e2y gi\u1ed1ng tr\u00ean v\u0169 tr\u1ee5 qua t\u00e1m n\u0103m \u0111\u00e3 ch\u1ecdn \u0111\u01b0\u1ee3c lo\u1ea1i gi\u1ed1ng t\u1ed1t, s\u1ea3n l\u01b0\u1ee3ng m\u1ed7i m\u1eabu \u0111\u1ea1t tr\u00ean 3,5 t\u1ea5n, so v\u1edbi gi\u1ed1ng c\u0169 t\u0103ng s\u1ea3n tr\u00ean 20%, h\u00e0m l\u01b0\u1ee3ng vitamin c\u0169ng n\u00e2ng cao 20%, th\u1ef1c hi\u1ec7n mong mu\u1ed1n “m\u1ed9t qu\u1ea3 \u1edbt xanh m\u1ed9t \u0111\u0129a rau”. \u1ede tr\u00ean m\u1eb7t \u0111\u1ea5t g\u00e2y m\u1ed9t lo\u1ea1i gi\u1ed1ng m\u1edbi cho n\u00f4ng nghi\u1ec7p, n\u00f3i chung c\u00e1c nh\u00e0 khoa h\u1ecdc ph\u1ea3i m\u1ea5t tr\u00ean 10 n\u0103m, th\u1eadm ch\u00ed m\u1ea5t t\u00e2m l\u1ef1c su\u1ed1t c\u1ea3 cu\u1ed9c \u0111\u1eddi, c\u00f2n l\u1ee3i d\u1ee5ng \u0111i\u1ec1u ki\u1ec7n \u01b0u th\u1ebf trong v\u0169 tr\u1ee5 qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c r\u00fat ng\u1eafn r\u1ea5t nhi\u1ec1u.<\/p>\n\n\n\n
T\u1ea5t c\u1ea3 \u0111\u1eb7c t\u00ednh v\u00e0 s\u1ea3n l\u01b0\u1ee3ng c\u1ee7a c\u00e1c v\u1eadt tr\u00ean Tr\u00e1i \u0110\u1ea5t \u0111\u1ec1u ch\u1ecbu \u1ea3nh h\u01b0\u1edfng tr\u1ecdng l\u1ef1c c\u1ee7a Tr\u00e1i \u0110\u1ea5t, do \u0111\u00f3 r\u1ea5t nhi\u1ec1u v\u1eadt li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng cao kh\u00f4ng th\u1ec3 s\u1ea3n xu\u1ea5t tr\u00ean m\u1eb7t \u0111\u1ea5t, c\u00f2n tr\u00ean v\u0169 tr\u1ee5 v\u00ec m\u1ea5t tr\u1ecdng l\u01b0\u1ee3ng cho n\u00ean s\u1ef1 tr\u1ea7m t\u00edch c\u00e1c ch\u1ea5t c\u00f3 m\u1eadt \u0111\u1ed9 kh\u00e1c nhau v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng ph\u00e2n t\u1ea7ng s\u1ebd m\u1ea5t \u0111i, \u0111\u1ed1i v\u1edbi lo\u1ea1i h\u1ee3p kim g\u1ed3m nhi\u1ec1u nguy\u00ean t\u1ed1 cho d\u00f9 m\u1eadt \u0111\u1ed9 c\u1ee7a ch\u00fang kh\u00e1c nhau, qu\u00e1 tr\u00ecnh k\u1ebft tinh c\u1ee7a tinh th\u1ec3 kh\u00f4ng b\u1ecb nhi\u1ec5u \u0111\u1ed9ng nhi\u1ec7t, do \u0111\u00f3 c\u00f3 th\u1ec3 ch\u1ebf t\u1ea1o ra nh\u1eefng h\u1ee3p kim ho\u1eb7c v\u1eadt li\u1ec7u ph\u1ee9c h\u1ee3p c\u00f3 n\u1ec1n l\u00e0 h\u1ee3p kim c\u00f3 th\u00e0nh ph\u1ea7n r\u1ea5t \u0111\u1ed3ng \u0111\u1ec1u.<\/p>\n\n\n\n
Trong \u0111i\u1ec1u ki\u1ec7n tr\u1ecdng l\u1ef1c y\u1ebfu, v\u00ec kh\u00f4ng c\u00f3 l\u1ef1c n\u1ed5i cho n\u00ean c\u00e1c gi\u1ecdt n\u01b0\u1edbc kh\u00f4ng d\u1ec5 b\u1ecb tr\u00f4i n\u1ed5i, v\u00ec v\u1eady khi luy\u1ec7n kim kh\u00f4ng c\u1ea7n s\u1eed d\u1ee5ng \u0111\u1ebfn b\u00ecnh \u0111\u1ef1ng m\u00e0 luy\u1ec7n n\u1ed5i trong kh\u00f4ng trung. Nh\u01b0 v\u1eady c\u00f3 th\u1ec3 khi\u1ebfn cho nhi\u1ec7t \u0111\u1ed9 luy\u1ec7n kh\u00f4ng b\u1ecb h\u1ea1n ch\u1ebf b\u1edfi b\u00ecnh \u0111\u1ef1ng, c\u00f3 th\u1ec3 luy\u1ec7n kim lo\u1ea1i \u1edf \u0111i\u1ec3m n\u00f3ng ch\u1ea3y cao, c\u00f2n c\u00f3 th\u1ec3 tr\u00e1nh \u0111\u01b0\u1ee3c s\u1ef1 \u00f4 nhi\u1ec5m do b\u00ecnh \u0111\u1ef1ng g\u00e2y n\u00ean, c\u1ea3i thi\u1ec7n t\u1ed5 ch\u1ee9c tinh th\u1ec3 c\u1ee7a h\u1ee3p kim, n\u00e2ng cao c\u01b0\u1eddng \u0111\u1ed9 v\u00e0 \u0111\u1ed9 thu\u1ea7n khi\u1ebft c\u1ee7a h\u1ee3p kim. Kh\u00f4ng c\u00f3 l\u1ef1c n\u1ed5i c\u00f2n c\u00f3 th\u1ec3 khi\u1ebfn cho c\u00e1c b\u1ecdt kh\u00ed trong dung d\u1ecbch kim lo\u1ea1i kh\u00f4ng b\u00e0i ti\u1ebft ra, l\u1ee3i d\u1ee5ng \u0111\u1eb7c t\u00ednh n\u00e0y c\u00f3 th\u1ec3 t\u1ea1o ra nh\u1eefng kim lo\u1ea1i b\u1ecdt x\u1ed1p kh\u1ed1i l\u01b0\u1ee3ng nh\u1eb9, c\u01b0\u1eddng \u0111\u1ed9 cao, t\u00ednh b\u1ec1n t\u1ed1t m\u00e0 tr\u00ean m\u1eb7t \u0111\u1ea5t kh\u00f4ng th\u1ec3 s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n
Trong m\u00f4i tr\u01b0\u1eddng tr\u1ecdng l\u1ef1c y\u1ebfu, nhi\u1ec7t \u0111\u1ed1i l\u01b0u c\u1ee7a c\u00e1c ch\u1ea5t kh\u00ed v\u00e0 dung d\u1ecbch s\u1ebd m\u1ea5t \u0111i, \u0111i\u1ec1u \u0111\u00f3 khi\u1ebfn cho trong v\u0169 tr\u1ee5 c\u00f3 th\u1ec3 t\u1ea1o ra nh\u1eefng ch\u1ea5t b\u00e1n d\u1eabn \u0111\u01a1n tinh th\u1ec3 c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn, \u0111\u1ed9 thu\u1ea7n khi\u1ebft cao v\u00e0 ph\u00e2n ly nh\u1eefng t\u1ebf b\u00e0o s\u1ed1ng v\u00e0 anbumin, t\u1eeb \u0111\u00f3 t\u1ea1o ra nh\u1eefng ho\u00e1 ch\u1ea5t c\u00f3 \u0111\u1ed9 thu\u1ea7n khi\u1ebft cao v\u00e0 c\u00e1c lo\u1ea1i thu\u1ed1c \u0111\u1eb7c hi\u1ec7u ch\u1ebf t\u1ea1o t\u1eeb ch\u1ea5t d\u1ecbch c\u1ee7a c\u00e1c sinh v\u1eadt. Tr\u00ean m\u1eb7t \u0111\u1ea5t r\u1ea5t kh\u00f3 ch\u1ebf t\u1ea1o lo\u1ea1i thu\u1ed1c c\u00f3 \u0111\u1ed9 thu\u1ea7n khi\u1ebft cao, cho d\u00f9 s\u1ea3n xu\u1ea5t ra \u0111\u01b0\u1ee3c th\u00ec c\u0169ng ph\u1ea3i tr\u1ea3 gi\u00e1 r\u1ea5t \u0111\u1eaft, c\u00f3 l\u00fac \u0111\u1ec3 \u0111\u01b0\u1ee3c m\u1ed9t gam nguy\u00ean li\u1ec7u d\u01b0\u1ee3c sinh v\u1eadt, th\u01b0\u1eddng ph\u1ea3i m\u1ea5t \u0111\u1ebfn m\u1ea5y t\u1ea5n nguy\u00ean li\u1ec7u. Ch\u1ebf t\u1ea1o d\u01b0\u1ee3c trong v\u0169 tr\u1ee5 so v\u1edbi tr\u00ean m\u1eb7t \u0111\u1ea5t, \u0111\u1ed9 thu\u1ea7n khi\u1ebft c\u00f3 th\u1ec3 cao g\u1ea5p 5 l\u1ea7n, t\u1ed1c \u0111\u1ed9 ch\u1ebf t\u1ea1o nhanh g\u1ea5p 400 – 800 l\u1ea7n, s\u1ea3n l\u01b0\u1ee3ng m\u1ed9t th\u00e1ng t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 30 – 60 n\u0103m tr\u00ean m\u1eb7t \u0111\u1ea5t.<\/p>\n\n\n\n
Cho n\u00ean n\u00f3i v\u0169 tr\u1ee5 l\u00e0 ph\u00f2ng th\u00ed nghi\u1ec7m \u0111\u1ed9c \u0111\u00e1o c\u1ee7a con ng\u01b0\u1eddi.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: M\u00f4i tr\u01b0\u1eddng v\u0169 tr\u1ee5; Ph\u00f2ng th\u00ed nghi\u1ec7m v\u0169 tr\u1ee5; \u01af\u01a1m gi\u1ed1ng trong v\u0169 tr\u1ee5; Ch\u1ebf thu\u1ed1c trong v\u0169<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
Nh\u00e2n lo\u1ea1i \u0111\u00e3 b\u01b0\u1edbc v\u00e0o th\u1eddi \u0111\u1ea1i v\u0169 tr\u1ee5. C\u00e1c nh\u00e0 khoa h\u1ecdc kh\u00f4ng ti\u1ebfc s\u1ee9c m\u00ecnh c\u1ed1 g\u1eafng \u0111\u01b0a nhi\u1ec1u th\u00ed nghi\u1ec7m v\u00e0 ho\u1ea1t \u0111\u1ed9ng s\u1ea3n xu\u1ea5t v\u00e0o v\u0169 tr\u1ee5. \u0110\u00f3 l\u00e0 v\u00ec sao? Nguy\u00ean l\u00e0 trong v\u0169 tr\u1ee5 c\u00f3 nhi\u1ec1u \u0111i\u1ec1u ki\u1ec7n \u01b0u vi\u1ec7t m\u00e0 tr\u00ean m\u1eb7t \u0111\u1ea5t kh\u00f4ng c\u00f3. M\u00f4i tr\u01b0\u1eddng v\u0169 […]<\/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":[15,7],"tags":[],"class_list":["post-7279","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7279","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=7279"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7279\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=7279"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=7279"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=7279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}