Trong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y, ch\u00fang ta v\u1eabn quen v\u1edbi nh\u1ef1a colophan v\u00e0 d\u1ea7u th\u00f4ng \u0111\u01b0\u1ee3c luy\u1ec7n t\u1eeb h\u01b0\u01a1ng th\u00f4ng. N\u1ebfu b\u1ea1n \u0111i \u0111\u01b0\u1eddng ho\u1eb7c \u0111\u00e1 b\u00f3ng kh\u00f4ng may b\u1ecb \u0111au c\u01a1 b\u1eafp, b\u00e1c s\u0129 s\u1ebd xoa cho b\u1ea1n m\u1ed9t \u00edt d\u1ea7u th\u00f4ng, gi\u00fap m\u00e1u l\u01b0u th\u00f4ng; khi bi\u1ec3u di\u1ec5n \u0111\u00e0n nh\u1ecb, b\u00f4i l\u00ean d\u00e2y \u0111\u00e0n m\u1ed9t \u00edt nh\u1ef1a colophan s\u1ebd t\u0103ng \u00e2m h\u01b0\u1edfng c\u1ee7a nh\u1ea1c c\u1ee5 l\u00ean; m\u1ef1c in v\u00e0 c\u00e1c lo\u1ea1i s\u01a1n d\u00f9ng trong in \u1ea5n \u0111\u1ec1u c\u00f3 d\u1ea7u th\u00f4ng. M\u1ee1 th\u00f4ng (bao g\u1ed3m d\u1ea7u th\u00f4ng, h\u01b0\u01a1ng th\u00f4ng v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc kh\u00e1c) c\u00f2n l\u00e0 m\u1ed9t nguy\u00ean li\u1ec7u quan tr\u1ecdng trong s\u1ea3n xu\u1ea5t c\u00f4ng nghi\u1ec7p.<\/p>\n\n\n\n
Nh\u01b0ng c\u00f3 l\u1ebd \u0111i\u1ec1u b\u1ea1n kh\u00f4ng ng\u1edd t\u1edbi l\u00e0: nguy\u00ean li\u1ec7u c\u00f4ng nghi\u1ec7p qu\u00ed b\u00e1u n\u00e0y l\u1ea1i l\u1ea5y t\u1eeb c\u00e2y th\u00f4ng.<\/p>\n\n\n\n
Trong c\u00e2y th\u00f4ng t\u1ea1i sao l\u1ea1i c\u00f3 th\u1ee9 n\u00e0y?<\/p>\n\n\n\n
Trong r\u1ec5, th\u00e2n v\u00e0 l\u00e1 c\u1ee7a c\u00e2y th\u00f4ng c\u00f3 r\u1ea5t nhi\u1ec1u \u1ed1ng d\u1eabn nh\u1ecf, \u0111\u00e2y l\u00e0 c\u00e1c khe gi\u1eefa c\u00e1c t\u1ebf b\u00e0o h\u00ecnh th\u00e0nh trong qu\u00e1 tr\u00ecnh c\u00e2y sinh tr\u01b0\u1edfng. Nh\u1eefng \u1ed1ng d\u1eabn n\u00e0y k\u1ebft h\u1ee3p v\u1edbi nhau, t\u1ed5 ch\u1ee9c th\u00e0nh m\u1ed9t h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn ho\u00e0n ch\u1ec9nh d\u1ecdc ngang \u0111an xen, xuy\u00ean su\u1ed1t to\u00e0n b\u1ed9 c\u01a1 th\u1ec3 g\u1ecdi l\u00e0 \u1ed1ng nh\u1ef1a c\u00e2y. C\u00e1c \u1ed1ng nh\u1ef1a c\u00e2y do m\u1ed9t l\u1edbp t\u1ebf b\u00e0o \u0111\u1eb7c bi\u1ec7t ti\u1ebft ra v\u00e2y h\u1ee3p l\u1ea1i. T\u1ebf b\u00e0o ti\u1ebft ra n\u00e0y trong qu\u00e1 tr\u00ecnh trao \u0111\u1ed5i sinh l\u00ed c\u1ee7a c\u00e2y th\u00f4ng c\u00f3 th\u1ec3 t\u1ea1o ra nh\u1ef1a th\u00f4ng v\u00e0 kh\u00f4ng ng\u1eebng v\u1eadn chuy\u1ec3n \u0111\u1ebfn c\u00e1c \u1ed1ng d\u1eabn r\u1ed3i l\u01b0u l\u1ea1i \u1edf \u0111\u00f3. M\u1ed7i khi c\u00e2y th\u00f4ng b\u1ecb th\u01b0\u01a1ng, nh\u1ef1a th\u00f4ng li\u1ec1n t\u1eeb \u1ed1ng d\u1eabn ch\u1ea3y ra, nhanh ch\u00f3ng b\u1ecbt mi\u1ec7ng v\u1ebft th\u01b0\u01a1ng l\u1ea1i. Trong nh\u1ef1a th\u00f4ng c\u00f3 m\u1ed9t s\u1ed1 ch\u1ea5t c\u00f2n c\u00f3 th\u1ec3 bay ra kh\u00f4ng kh\u00ed, gi\u1ebft ch\u1ebft nh\u1eefng vi khu\u1ea9n c\u00f3 h\u1ea1i, gi\u00fap c\u00e2y \u00edt b\u1ec7nh h\u01a1n. C\u00f3 th\u1ec3 n\u00f3i c\u00e2y th\u00f4ng s\u1ea3n sinh ra nh\u1ef1a th\u00f4ng tr\u00ean th\u1ef1c t\u1ebf l\u00e0 m\u1ed9t ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 c\u1ee7a n\u00f3.<\/p>\n\n\n\n
Do trong th\u00e2n c\u00e2y th\u00f4ng c\u00f3 ch\u1ee9a nh\u1ef1a th\u00f4ng, n\u00ean t\u00ednh ch\u1ecbu \u0111\u01b0\u1ee3c m\u1ee5c r\u1eefa c\u1ee7a c\u00e2y th\u00f4ng r\u1ea5t m\u1ea1nh, n\u00f3 l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng quan tr\u1ecdng.<\/p>\n","protected":false},"excerpt":{"rendered":"
Trong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y, ch\u00fang ta v\u1eabn quen v\u1edbi nh\u1ef1a colophan v\u00e0 d\u1ea7u th\u00f4ng \u0111\u01b0\u1ee3c luy\u1ec7n t\u1eeb h\u01b0\u01a1ng th\u00f4ng. N\u1ebfu b\u1ea1n \u0111i \u0111\u01b0\u1eddng ho\u1eb7c \u0111\u00e1 b\u00f3ng kh\u00f4ng may b\u1ecb \u0111au c\u01a1 b\u1eafp, b\u00e1c s\u0129 s\u1ebd xoa cho b\u1ea1n m\u1ed9t \u00edt d\u1ea7u th\u00f4ng, gi\u00fap m\u00e1u l\u01b0u th\u00f4ng; khi bi\u1ec3u di\u1ec5n \u0111\u00e0n nh\u1ecb, b\u00f4i l\u00ean d\u00e2y […]<\/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-9706","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\/9706","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=9706"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9706\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=9706"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=9706"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=9706"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}