{"id":9647,"date":"2021-11-21T17:40:39","date_gmt":"2021-11-21T10:40:39","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=9647"},"modified":"2021-11-21T18:37:42","modified_gmt":"2021-11-21T11:37:42","slug":"cay-lam-the-nao-de-trai-qua-mua-dong-gia-lanh","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/cay-lam-the-nao-de-trai-qua-mua-dong-gia-lanh\/","title":{"rendered":"C\u00e2y l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 tr\u1ea3i qua m\u00f9a \u0111\u00f4ng gi\u00e1 l\u1ea1nh?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Trong thi\u00ean nhi\u00ean c\u00f3 r\u1ea5t nhi\u1ec1u hi\u1ec7n t\u01b0\u1ee3ng thu h\u00fat s\u1ef1 ch\u00fa \u00fd quan t\u00e2m c\u1ee7a con ng\u01b0\u1eddi. V\u00ed d\u1ee5 nh\u01b0 c\u00f9ng m\u1ed9t lo\u00e0i c\u00e2y ph\u00e1t tri\u1ec3n tr\u00ean m\u1eb7t \u0111\u1ea5t, c\u00f3 c\u00e2y ch\u1ecbu \u0111\u01b0\u1ee3c m\u00f9a \u0111\u00f4ng gi\u00e1 l\u1ea1nh, c\u00f3 c\u00e2y l\u1ea1i kh\u00f4ng ch\u1ecbu \u0111\u01b0\u1ee3c l\u1ea1nh, th\u1eadm ch\u00ed c\u00e2y t\u00f9ng, b\u00e1ch cho d\u00f9 m\u00f9a \u0111\u00f4ng \u0111\u00f3ng b\u0103ng ch\u00fang v\u1eabn xanh r\u1eddn kh\u00f4ng h\u1ec1 h\u00e9o r\u0169. C\u00f9ng m\u1ed9t lo\u1ea1i c\u00e2y s\u1ee9c ch\u1ecbu \u0111\u1ef1ng c\u00e1i l\u1ea1nh c\u0169ng kh\u00e1c nhau v\u00e0 m\u1ed7i m\u1ed9t lo\u00e0i c\u00e2y c\u0169ng ch\u1ecbu l\u1ea1nh kh\u00e1c nhau. C\u00e2y l\u00ea \u1edf mi\u1ec1n B\u1eafc \u1edf nhi\u1ec7t \u0111\u1ed9 -20oC \u0111\u1ebfn -30oC v\u1eabn c\u00f3 th\u1ec3 s\u1ed1ng, nh\u01b0ng l\u1ea1i kh\u00f4ng ch\u1ecbu \u0111\u01b0\u1ee3c c\u00e1i se l\u1ea1nh c\u1ee7a m\u00f9a xu\u00e2n. L\u00e1 kim c\u1ee7a c\u00e2y t\u00f9ng c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c c\u00e1i l\u1ea1nh \u1edf -30oC c\u1ee7a m\u00f9a \u0111\u00f4ng nh\u01b0ng n\u1ebfu v\u00e0o m\u00f9a h\u00e8 ta gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 xu\u1ed1ng -8oC th\u00ec s\u1ebd b\u1ecb ch\u1ebft c\u00f3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nguy\u00ean nh\u00e2n g\u00ec m\u00e0 lo\u00e0i c\u00e2y l\u1ea1i ch\u1ecbu \u0111\u01b0\u1ee3c c\u00e1i l\u1ea1nh nh\u01b0 v\u1eady? \u0110\u00f3 l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 r\u1ea5t th\u00fa v\u1ecb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea7u ti\u00ean c\u00f3 m\u1ed9t s\u1ed1 <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc gi\u1ea3<\/a> n\u01b0\u1edbc ngo\u00e0i cho r\u1eb1ng c\u00f3 th\u1ec3 gi\u1ed1ng nh\u01b0 \u0111\u1ed9ng v\u1eadt m\u00e1u n\u00f3ng, b\u1ea3n th\u00e2n c\u00e2y c\u0169ng s\u1ebd t\u1ea1o ra nhi\u1ec7t l\u01b0\u1ee3ng v\u00e0 v\u1ecf c\u00e2y c\u00f3 h\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t th\u1ea5p c\u00f3 t\u00e1c d\u1ee5ng b\u1ea3o v\u1ec7 c\u00e2y. Sau n\u00e0y, m\u1ed9t s\u1ed1 nh\u00e0 khoa h\u1ecdc n\u00f3i ch\u1ee7 y\u1ebfu l\u00e0 do l\u01b0\u1ee3ng n\u01b0\u1edbc ch\u1ee9a trong c\u00e2y v\u00e0o m\u00f9a \u0111\u00f4ng r\u1ea5t \u00edt cho n\u00ean \u1edf nhi\u1ec7t \u0111\u1ed9 d\u01b0\u1edbi \u0111i\u1ec3m \u0111\u00f3ng b\u0103ng c\u0169ng kh\u00f4ng th\u1ec3 l\u00e0m cho c\u00e1c t\u1ebf b\u00e0o \u0111\u00f3ng b\u0103ng m\u00e0 ch\u1ebft. Th\u1ebf nh\u01b0ng s\u1ef1 gi\u1ea3i th\u00edch n\u00e0y v\u1eabn ch\u01b0a \u0111\u01b0\u1ee3c tho\u1ea3 \u0111\u00e1ng cho l\u1eafm. \u0110\u1ebfn nay con ng\u01b0\u1eddi \u0111\u00e3 t\u00ecm ra, th\u00e2n c\u00e2y kh\u00f4ng th\u1ec3 s\u1ea3n sinh ra nhi\u1ec7t l\u01b0\u1ee3ng m\u00e0 c\u00e1c t\u1ed5 ch\u1ee9c \u1edf c\u00e2y d\u01b0\u1edbi \u0111i\u1ec3m \u0111\u00f3ng b\u0103ng c\u0169ng kh\u00f4ng ph\u1ea3i kh\u00f4ng th\u1ec3 \u0111\u00f3ng b\u0103ng \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1eady b\u00ed m\u1eadt l\u00e0 \u1edf ch\u1ed7 n\u00e0o \u0111\u00e2y?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00f3a ra c\u00e2y v\u1ed1n \u0111\u01b0\u1ee3c \u201cr\u00e8n luy\u1ec7n\u201d t\u1eeb l\u00e2u. C\u00e2y th\u00edch nghi v\u1edbi s\u1ef1 thay \u0111\u1ed5i m\u00f4i tr\u01b0\u1eddng xung quanh, h\u00e0ng n\u0103m \u0111\u1ec1u d\u00f9ng m\u1ed9t di\u1ec7u ph\u00e1p \u201cng\u1ee7 say\u201d \u0111\u1ec3 \u0111\u1ed1i ph\u00f3 v\u1edbi c\u00e1i l\u1ea1nh c\u1ee7a m\u00f9a \u0111\u00f4ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e2y sinh tr\u01b0\u1edfng c\u1ea7n ti\u00eau hao ch\u1ea5t dinh d\u01b0\u1ee1ng, v\u00e0o m\u00f9a xu\u00e2n, m\u00f9a h\u1ea1 c\u00e2y ph\u00e1t tri\u1ec3n nhanh, l\u01b0\u1ee3ng ch\u1ea5t dinh d\u01b0\u1ee1ng ti\u00eau hao nhi\u1ec1u h\u01a1n l\u01b0\u1ee3ng t\u00edch l\u0169y, v\u00ec v\u1eady s\u1ee9c ch\u1ecbu l\u1ea1nh k\u00e9m. \u0110\u1ebfn m\u00f9a thu, t\u00ecnh h\u00ecnh thay \u0111\u1ed5i, l\u00fac n\u00e0y nhi\u1ec7t \u0111\u1ed9 ban ng\u00e0y cao, M\u1eb7t Tr\u1eddi chi\u1ebfu m\u1ea1nh, s\u1ee9c quang h\u1ee3p c\u1ee7a l\u00e1 t\u0103ng, c\u00f2n nhi\u1ec7t \u0111\u1ed9 ban \u0111\u00eam l\u1ea1i th\u1ea5p, c\u00e2y ph\u00e1t tri\u1ec3n ch\u1eadm, ch\u1ea5t dinh d\u01b0\u1ee1ng ti\u00eau hao \u00edt, t\u00edch l\u0169y nhi\u1ec1u, th\u1ebf l\u00e0 c\u00e2y ng\u00e0y c\u00e0ng \u201cb\u00e9o\u201d, c\u00e0nh non s\u1ebd ph\u00e1t tri\u1ec3n th\u00e0nh g\u1ed7\u2026 d\u1ea7n d\u1ea7n c\u00e2y c\u0169ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1nh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean \u0111\u1eebng nh\u00ecn th\u1ea5y tr\u1ea1ng th\u00e1i t\u0129nh v\u1ec1 m\u00f9a \u0111\u00f4ng \u1edf b\u00ean ngo\u00e0i c\u1ee7a c\u00e2y, th\u1ef1c ra b\u00ean trong c\u01a1 th\u1ec3 ch\u00fang \u0111ang bi\u1ebfn \u0111\u1ed5i m\u1ea1nh m\u1ebd. V\u00e0o m\u00f9a thu, ch\u1ea5t tinh b\u1ed9t d\u1ef1 tr\u1eef \u0111\u01b0\u1ee3c s\u1ebd chuy\u1ec3n th\u00e0nh \u0111\u01b0\u1eddng, c\u00f3 c\u00e2y th\u1eadm ch\u00ed s\u1ebd chuy\u1ec3n th\u00e0nh m\u1ee1, \u0111\u00f3 l\u00e0 m\u1ee5c \u0111\u00edch nh\u1eb1m ch\u1ed1ng r\u00e9t, b\u1ea3o v\u1ec7 t\u1ebf b\u00e0o kh\u00f4ng d\u1ec5 d\u00e0ng b\u1ecb \u0111\u00f4ng ch\u1ebft. N\u1ebfu mang nh\u1eefng m\u1ea3nh g\u1ed7 quan s\u00e1t d\u01b0\u1edbi k\u00ednh hi\u1ec3n vi c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng l\u00ed th\u00fa. B\u00ecnh th\u01b0\u1eddng c\u00e1c t\u1ebf b\u00e0o li\u00ean k\u1ebft v\u1edbi nhau, l\u00fac n\u00e0y s\u1ef1 li\u00ean k\u1ebft c\u1ee7a c\u00e1c t\u1ebf b\u00e0o \u0111\u00e3 \u0111\u1ee9t, h\u01a1n n\u1eefa v\u00e1ch c\u00e1c t\u1ebf b\u00e0o v\u00e0 ch\u1ea5t nguy\u00ean sinh t\u00e1ch ra. Nh\u1eefng bi\u1ebfn \u0111\u1ed5i nh\u1ecf b\u00e9 m\u1eaft th\u01b0\u1eddng kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c n\u00e0y c\u00f3 th\u1ec3 c\u00f3 t\u00e1c d\u1ee5ng c\u1ef1c k\u1ef3 to l\u1edbn \u0111\u1ed1i v\u1edbi s\u1ee9c ch\u1ed1ng l\u1ea1nh c\u1ee7a th\u1ef1c v\u1eadt c\u01a1 \u0111\u1ea5y! Khi t\u1ed5 ch\u1ee9c \u0111\u00f3ng b\u0103ng n\u00f3 c\u00f3 th\u1ec3 tr\u00e1nh \u0111\u01b0\u1ee3c m\u1ed1i nguy hi\u1ec3m &#8211; m\u1ed9t b\u1ed9 ph\u1eadn quan tr\u1ecdng nh\u1ea5t trong t\u1ebf b\u00e0o l\u00e0 ch\u1ea5t nguy\u00ean sinh, b\u1ecb t\u1ed5n th\u01b0\u01a1ng do s\u1ef1 \u0111\u00f3ng b\u0103ng gi\u1eefa c\u00e1c t\u1ebf b\u00e0o g\u00e2y n\u00ean.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 th\u1ec3 th\u1ea5y s\u1ef1 \u201cng\u1ee7 \u0111\u00f4ng\u201d v\u00e0 v\u01b0\u1ee3t qua m\u00f9a \u0111\u00f4ng c\u00f3 li\u00ean quan m\u1eadt thi\u1ebft v\u1edbi nhau. M\u00f9a \u0111\u00f4ng, th\u1ef1c v\u1eadt ng\u1ee7 c\u00e0ng say th\u00ec s\u1ee9c ch\u1ecbu \u0111\u1ef1ng c\u00e1i l\u1ea1nh c\u00e0ng cao; ng\u01b0\u1ee3c l\u1ea1i, nh\u01b0 c\u00e2y chanh quanh n\u0103m sinh tr\u01b0\u1edfng kh\u00f4ng ng\u1ee7, s\u1ee9c ch\u1ed1ng \u0111\u00f4ng l\u1ea1nh c\u1ee7a n\u00f3 r\u1ea5t k\u00e9m, ngay c\u1ea3 kh\u00ed h\u1eadu nh\u01b0 Th\u01b0\u1ee3ng H\u1ea3i n\u00f3 c\u0169ng kh\u00f4ng th\u1ec3 sinh tr\u01b0\u1edfng qua m\u00f9a \u0111\u00f4ng \u1edf ngo\u00e0i tr\u1eddi.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trong thi\u00ean nhi\u00ean c\u00f3 r\u1ea5t nhi\u1ec1u hi\u1ec7n t\u01b0\u1ee3ng thu h\u00fat s\u1ef1 ch\u00fa \u00fd quan t\u00e2m c\u1ee7a con ng\u01b0\u1eddi. V\u00ed d\u1ee5 nh\u01b0 c\u00f9ng m\u1ed9t lo\u00e0i c\u00e2y ph\u00e1t tri\u1ec3n tr\u00ean m\u1eb7t \u0111\u1ea5t, c\u00f3 c\u00e2y ch\u1ecbu \u0111\u01b0\u1ee3c m\u00f9a \u0111\u00f4ng gi\u00e1 l\u1ea1nh, c\u00f3 c\u00e2y l\u1ea1i kh\u00f4ng ch\u1ecbu \u0111\u01b0\u1ee3c l\u1ea1nh, th\u1eadm ch\u00ed c\u00e2y t\u00f9ng, b\u00e1ch cho d\u00f9 m\u00f9a \u0111\u00f4ng \u0111\u00f3ng [&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":[15,19],"tags":[],"class_list":["post-9647","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-tu-nhien"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9647","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=9647"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9647\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=9647"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=9647"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=9647"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}