Nh\u1eefng c\u00e2y \u0103n qu\u1ea3 xanh quanh n\u0103m v\u00f9ng nhi\u1ec7t \u0111\u1edbi m\u00e0 m\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u quen thu\u1ed9c nh\u01b0 \u0111\u00e0o h\u01b0\u01a1ng, l\u1ef1u, v\u1ea3i, m\u1ed9t n\u0103m c\u00f3 th\u1ec3 ra hoa m\u1ea5y l\u1ea7n. Nh\u01b0ng nh\u1eefng c\u00e2y \u0103n qu\u1ea3 r\u1ee5ng l\u00e1 nh\u01b0 c\u00e2y \u0111\u00e0o, c\u00e2y l\u00ea, c\u00e2y m\u01a1 m\u1ed7i n\u0103m ch\u1ec9 ra hoa m\u1ed9t l\u1ea7n, th\u01b0\u1eddng m\u00f9a xu\u00e2n ra hoa r\u1ed3i ra l\u00e1, xu\u00e2n h\u00e8 k\u1ebft qu\u1ea3, m\u00f9a thu r\u1ee5ng l\u00e1, m\u00f9a \u0111\u00f4ng ng\u1ee7. Nh\u01b0ng c\u00f3 m\u1ed9t n\u0103m ch\u00fang l\u1ea1i tr\u00e1i v\u1edbi qui lu\u1eadt n\u00e0y, v\u00e0o m\u00f9a thu ho\u1eb7c m\u00f9a \u0111\u00f4ng l\u1ea1i ra hoa th\u00eam m\u1ed9t l\u1ea7n n\u1eefa, xu\u1ea5t hi\u1ec7n hi\u1ec7n t\u01b0\u1ee3ng m\u1ed9t n\u0103m hai l\u1ea7n ra hoa. T\u1ea1i sao c\u00e2y \u0103n qu\u1ea3 r\u1ee5ng l\u00e1 nh\u01b0 c\u00e2y \u0111\u00e0o, c\u00e2y l\u00ea, c\u00e2y h\u1ea1nh nh\u00e2n\u2026 c\u00f3 th\u1ec3 m\u1ed9t n\u0103m ra hoa hai l\u1ea7n?<\/p>\n\n\n\n
M\u1ea7m hoa v\u00e0 m\u1ea7m l\u00e1 c\u1ee7a c\u00e2y \u0103n qu\u1ea3 h\u00ecnh th\u00e0nh c\u00e1ch n\u0103m. Trong \u0111i\u1ec1u ki\u1ec7n kh\u00ed h\u1eadu b\u00ecnh th\u01b0\u1eddng, m\u00f9a xu\u00e2n c\u00e2y \u0111\u1ed3ng th\u1eddi ra hoa, ra l\u00e1, s\u1ebd h\u00ecnh th\u00e0nh m\u1ea7m hoa v\u00e0 m\u1ea7m l\u00e1 c\u1ee7a n\u0103m t\u1edbi, l\u00e0m c\u01a1 s\u1edf cho vi\u1ec7c ra hoa k\u1ebft qu\u1ea3 n\u0103m sau. N\u1ebfu n\u0103m \u0111\u00f3 do qu\u1ea3n l\u00ed kh\u00f4ng t\u1ed1t ho\u1eb7c b\u1ecb c\u00f4n tr\u00f9ng \u0103n l\u00e1 l\u00e0m h\u1ea1i, ho\u1eb7c do th\u1eddi ti\u1ebft kh\u00ed h\u1eadu kh\u00f4 h\u1ea1n d\u1eabn \u0111\u1ebfn l\u00e1 c\u00e2y \u0103n qu\u1ea3 r\u1ee5ng s\u1edbm (th\u1eddi k\u00ec l\u00e1 r\u1ee5ng b\u1ea5t th\u01b0\u1eddng) khi\u1ebfn cho m\u1ed9t b\u1ed9 ph\u1eadn m\u1ea7m hoa v\u00e0 m\u1ea7m l\u00e1 \u0111\u00e1ng nh\u1ebd ph\u1ea3i n\u1edf n\u0103m \u0111\u00f3 nh\u01b0ng v\u1eabn ti\u1ebfp t\u1ee5c ng\u1ee7, kh\u00ed h\u1eadu sau khi l\u00e1 r\u1ee5ng c\u00f2n r\u1ea5t cao, ho\u1ea1t \u0111\u1ed9ng s\u1ee9c s\u1ed1ng c\u1ee7a c\u00e2y \u0103n qu\u1ea3 c\u00f2n th\u1ecbnh v\u01b0\u1ee3ng, d\u1ed3i d\u00e0o l\u1ea1i khi\u1ebfn cho m\u1ea7m hoa, m\u1ea7m l\u00e1 ng\u1ee7 l\u1ea7n n\u1eefa n\u1edf hoa, v\u00ec v\u1eady xu\u1ea5t hi\u1ec7n hi\u1ec7n t\u01b0\u1ee3ng m\u1ed9t n\u0103m ra hoa hai l\u1ea7n. B\u00ean c\u1ea1nh \u0111\u00f3, m\u1ea7m hoa, m\u1ea7m l\u00e1 c\u1ee7a m\u1ed9t s\u1ed1 c\u00e2y \u0103n qu\u1ea3 h\u00ecnh th\u00e0nh n\u0103m \u0111\u00f3, sau khi tr\u1ea3i qua th\u1eddi k\u00ec l\u00e1 r\u1ee5ng, s\u1ebd ngh\u1ec9 ng\u01a1i, n\u1ebfu g\u1eb7p nhi\u1ec7t \u0111\u1ed9 m\u00f9a \u0111\u00f4ng \u0111\u1ed9t ng\u1ed9t chuy\u1ec3n \u1ea5m (ti\u1ec3u d\u01b0\u01a1ng xu\u00e2n), m\u1ed9t b\u1ed9 ph\u1eadn m\u1ea7m hoa l\u00e1 n\u0103m \u0111\u00f3 n\u1edf s\u1edbm h\u01a1n, c\u0169ng g\u00e2y hi\u1ec7n t\u01b0\u1ee3ng hai l\u1ea7n ra hoa. Nh\u01b0ng s\u1ed1 l\u01b0\u1ee3ng hoa n\u1edf s\u1edbm s\u1ebd kh\u00f4ng nhi\u1ec1u, th\u1eddi gian c\u0169ng kh\u00f4ng d\u00e0i.<\/p>\n\n\n\n
\u0110\u00f3 l\u00e0 do hoa n\u1edf l\u1ea7n th\u1ee9 hai, do kh\u00ed h\u1eadu m\u00f9a \u0111\u00f4ng chuy\u1ec3n \u1ea5m, c\u00f3 \u1ea3nh h\u01b0\u1edfng nh\u1ea5t \u0111\u1ecbnh \u0111\u1ed1i v\u1edbi vi\u1ec7c ra hoa b\u00ecnh th\u01b0\u1eddng c\u1ee7a c\u00e2y \u0103n qu\u1ea3 n\u0103m sau.<\/p>\n\n\n\n
\u0110\u1ed1i v\u1edbi \u0111a s\u1ed1 c\u00e2y \u0103n qu\u1ea3 m\u00e0 n\u00f3i, ph\u1ea3i t\u0103ng c\u01b0\u1eddng ch\u0103m b\u00f3n tr\u00e1nh cho ra hoa l\u1ea7n th\u1ee9 hai \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 \u1ed5n \u0111\u1ecbnh s\u1ea3n l\u01b0\u1ee3ng. M\u00e0 ch\u00fang ta n\u1eafm v\u1eefng qui lu\u1eadt sinh tr\u01b0\u1edfng ph\u00e1t d\u1ee5c c\u1ee7a c\u00e2y \u0103n qu\u1ea3, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1eb7c t\u00ednh ra hoa hai l\u1ea7n c\u1ee7a c\u00e2y \u0103n qu\u1ea3 khi\u1ebfn cho m\u1ed7i n\u0103m k\u1ebft qu\u1ea3 hai l\u1ea7n, t\u0103ng s\u1ea3n l\u01b0\u1ee3ng n\u0103m \u0111\u00f3. Hi\u1ec7n nay, s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p sinh s\u1ea3n hai l\u1ea7n c\u1ee7a vi\u1ec7c ra hoa k\u1ebft qu\u1ea3 hai l\u1ea7n \u0111\u1ed1i v\u1edbi c\u00e2y \u0103n qu\u1ea3 nh\u1ecf.<\/p>\n","protected":false},"excerpt":{"rendered":"
Nh\u1eefng c\u00e2y \u0103n qu\u1ea3 xanh quanh n\u0103m v\u00f9ng nhi\u1ec7t \u0111\u1edbi m\u00e0 m\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u quen thu\u1ed9c nh\u01b0 \u0111\u00e0o h\u01b0\u01a1ng, l\u1ef1u, v\u1ea3i, m\u1ed9t n\u0103m c\u00f3 th\u1ec3 ra hoa m\u1ea5y l\u1ea7n. Nh\u01b0ng nh\u1eefng c\u00e2y \u0103n qu\u1ea3 r\u1ee5ng l\u00e1 nh\u01b0 c\u00e2y \u0111\u00e0o, c\u00e2y l\u00ea, c\u00e2y m\u01a1 m\u1ed7i n\u0103m ch\u1ec9 ra hoa m\u1ed9t l\u1ea7n, th\u01b0\u1eddng m\u00f9a xu\u00e2n ra hoa […]<\/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-9776","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\/9776","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=9776"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9776\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=9776"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=9776"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=9776"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}