{"id":10715,"date":"2021-11-22T17:22:02","date_gmt":"2021-11-22T10:22:02","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=10715"},"modified":"2021-11-22T18:17:37","modified_gmt":"2021-11-22T11:17:37","slug":"tai-sao-khi-moi-do-thu-ve-thi-la-cay-xanh-lai-nga-mau-vang-va-roi-rung","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/tai-sao-khi-moi-do-thu-ve-thi-la-cay-xanh-lai-nga-mau-vang-va-roi-rung\/","title":{"rendered":"T\u1ea1i sao khi m\u1ed7i \u0111\u1ed9 thu v\u1ec1 th\u00ec l\u00e1 c\u00e2y xanh l\u1ea1i ng\u1ea3 m\u00e0u v\u00e0ng v\u00e0 r\u01a1i r\u1ee5ng?"},"content":{"rendered":"\n<p>X\u01b0a nay v\u1eabn cho r\u1eb1ng v\u00ec m\u00f9a thu kh\u00f4 r\u00e1o d\u1eabn \u0111\u1ebfn l\u00e1 b\u1ecb m\u1ea5t n\u01b0\u1edbc. Nh\u01b0ng c\u00e1c nh\u00e0 khoa h\u1ecdc m\u1edbi \u0111\u00e2y ph\u00e1t hi\u1ec7n ra r\u1eb1ng: s\u1ef1 bi\u1ebfn m\u00e0u c\u1ee7a c\u00e1c l\u00e1 c\u00e2y c\u00f3 quan h\u1ec7 \u0111\u1ebfn s\u1ef1 bi\u1ebfn ho\u00e1 c\u1ee7a c\u00e1c k\u00edch th\u00edch t\u1ed1 n\u00e0o \u0111\u00f3 c\u00f9ng v\u1edbi s\u1ef1 thay \u0111\u1ed5i v\u1ec1 v\u1eadt ch\u1ea5t ho\u00e1 h\u1ecdc. V\u00e0o \u0111\u1ea9u m\u00f9a thu, k\u00edch th\u00edch t\u1ed1 t\u00e1ch r\u1eddi ch\u1ea5t A-x\u00edt v\u00e0 c\u00e1c ch\u1ea5t kh\u00e1c t\u00edch t\u1ee5 v\u00e0o l\u00e1 c\u00e2y, l\u00e1 b\u1eaft \u0111\u1ea9u bi\u1ebfn m\u00e0u v\u00e0ng, l\u00e1 c\u00e2y mang di\u1ec7p l\u1ee5c t\u1ed1, n\u01b0\u1edbc, \u0111\u1ea1m, pr\u00f4tit v\u00e0 c\u00e1c h\u1ee3p ch\u1ea5t h\u1eefu d\u1ee5ng v\u1ec1 cho c\u00e0nh, cho r\u1ec5 \u0111\u1ec3 r\u1ed3i t\u1ef1 m\u00ecnh nh\u1eadn s\u1ef1 kh\u00f4 h\u00e9o v\u00e0 di\u1ec7t vong. C\u0169ng nh\u01b0 v\u1eady, t\u1ebf b\u00e0o \u0111\u1eb7c th\u00f9 c\u1ee7a cu\u1ed1ng l\u00e1 c\u0169ng d\u1ea9n d\u1ea9n suy y\u1ebfu, th\u1ebf l\u00e0 m\u1ed7i khi c\u00f3 m\u01b0a, gi\u00f3, ch\u00fang d\u1ec5 d\u00e0ng b\u1ecb \u0111\u1ee9t l\u00eca.<\/p>\n\n\n\n<p>C\u00e1c nh\u00e0 th\u1ef1c v\u1eadt h\u1ecdc cho bi\u1ebft: m\u00e0u s\u1eafc l\u00e1 m\u00f9a thu c\u00f3 l\u00fac nh\u1ea1t, l\u00fac \u0111\u1eadm, n\u00f3 ph\u1ee5 thu\u1ed9c v\u00e0o l\u01b0\u1ee3ng m\u01b0a v\u00e0 tuy\u1ebft r\u01a1i. N\u1ebfu nh\u01b0 g\u1eb7p n\u0103m h\u1ea1n h\u00e1n, th\u00ec s\u1ef1 thay \u0111\u1ed5i c\u1ee7a l\u00e1 kh\u00f4ng l\u1edbn l\u1eafm, l\u00e1 s\u1ebd r\u1ee5ng s\u1edbm h\u01a1n, \u0111\u00f3 l\u00e0 do ch\u00fang mu\u1ed1n gi\u1eef n\u01b0\u1edbc cho c\u00e2y, t\u00edch tr\u1eef ch\u1ea5t dinh d\u01b0\u1ee1ng cho c\u00e2y, r\u1ee5ng l\u00e1 c\u00f3 th\u1ec3 l\u00e0 n\u01b0\u1edbc c\u1edd \u201cth\u00ed t\u1ed1t gi\u1eef xe\u201d c\u1ee7a lo\u00e0i c\u00e2y. \u0110\u1ea5y l\u00e0 m\u1ed9t trong nh\u1eefng th\u1ee7 \u0111o\u1ea1n gi\u1eef m\u00ecnh c\u1ee7a c\u00e1c lo\u00e0i th\u1ef1c v\u1eadt v\u00e0 \u0111\u1ea5y c\u0169ng l\u00e0 m\u1ed9t trong nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a t\u1ea1o ho\u00e1. C\u00f3 m\u1ed9t s\u1ed1 l\u00e1 xanh l\u1ea1i bi\u1ebfn th\u00e0nh m\u00e0u \u0111\u1ecf sau khi tr\u1eddi l\u1ea1nh d\u1ea9n. Ng\u01b0\u1eddi B\u1eafc Kinh (Trung Qu\u1ed1c) ch\u1ec9 ch\u1edd nh\u1eefng ng\u00e0y thu t\u1edbi \u0111\u1ec3 \u0111\u1ebfn H\u01b0\u01a1ng S\u01a1n ng\u1eafm l\u00e1 \u0111\u1ecf, to\u00e0n b\u1ed9 m\u1ed9t v\u00f9ng n\u00fai non tr\u1ea3i m\u1ed9t m\u00e0u v\u00e0ng \u0111\u1ecf r\u1ef1c r\u1ee1.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>X\u01b0a nay v\u1eabn cho r\u1eb1ng v\u00ec m\u00f9a thu kh\u00f4 r\u00e1o d\u1eabn \u0111\u1ebfn l\u00e1 b\u1ecb m\u1ea5t n\u01b0\u1edbc. Nh\u01b0ng c\u00e1c nh\u00e0 khoa h\u1ecdc m\u1edbi \u0111\u00e2y ph\u00e1t hi\u1ec7n ra r\u1eb1ng: s\u1ef1 bi\u1ebfn m\u00e0u c\u1ee7a c\u00e1c l\u00e1 c\u00e2y c\u00f3 quan h\u1ec7 \u0111\u1ebfn s\u1ef1 bi\u1ebfn ho\u00e1 c\u1ee7a c\u00e1c k\u00edch th\u00edch t\u1ed1 n\u00e0o \u0111\u00f3 c\u00f9ng v\u1edbi s\u1ef1 thay \u0111\u1ed5i v\u1ec1 v\u1eadt [&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":[1,15],"tags":[],"class_list":["post-10715","post","type-post","status-publish","format-standard","hentry","category-general","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10715","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=10715"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10715\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=10715"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=10715"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=10715"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}