Tr\u00e1i \u0110\u1ea5t ta sinh s\u1ed1ng \u0111\u00e3 c\u00f3 l\u1ecbch s\u1eed m\u1ea5y t\u1ec9 n\u0103m, nh\u01b0ng lo\u00e0i ng\u01b0\u1eddi d\u00f9ng v\u0103n t\u1ef1 \u0111\u1ec3 ghi ch\u00e9p m\u1edbi ch\u1ec9 m\u1ea5y ngh\u00ecn n\u0103m.<\/p>\n\n\n\n
H\u00e0ng tr\u0103m, h\u00e0ng ngh\u00ecn, h\u00e0ng v\u1ea1n, th\u1eadm ch\u00ed h\u00e0ng tr\u0103m tri\u1ec7u n\u0103m v\u1ec1 tr\u01b0\u1edbc, khi \u0111\u00f3 kh\u00ed h\u1eadu nh\u01b0 th\u1ebf n\u00e0o? \u0110i\u1ec1u \u0111\u00f3 \u0111\u1ed1i v\u1edbi nghi\u00ean c\u1ee9u xu th\u1ebf bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu c\u1ee7a T r\u00e1i \u0110\u1ea5t c\u00f3 m\u1ed9t gi\u00e1 tr\u1ecb tham kh\u1ea3o nh\u1ea5t \u0111\u1ecbnh.<\/p>\n\n\n\n
V\u1eady con ng\u01b0\u1eddi l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 bi\u1ebft \u0111\u01b0\u1ee3c kh\u00ed h\u1eadu xa x\u01b0a? Mu\u1ed1n th\u1ebf ph\u1ea3i d\u1ef1a v\u00e0o s\u1ef1 gi\u00fap \u0111\u1ee1 c\u1ee7a c\u00e1c ho\u00e1 th\u1ea1ch n\u1eb1m im l\u00e2u ng\u00e0y trong l\u00f2ng \u0111\u1ea5t.<\/p>\n\n\n\n
\u1ede t\u1ea7ng s\u00e2u trong v\u1ecf T r\u00e1i \u0110\u1ea5t ch\u1ee9a nhi\u1ec1u ph\u1ea5n hoa th\u1ef1c v\u1eadt v\u00e0 c\u00e1c kho\u00e1ng v\u1eadt l\u00e0m th\u00e0nh t\u1eebng v\u1ec7t. M\u1eb7c d\u00f9 r\u1ea5t im l\u00ecm, nh\u01b0ng n\u00f3 \u0111\u00e3 ghi l\u1ea1i l\u1ecbch s\u1eed bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu l\u00e2u \u0111\u1eddi tr\u00ean T r\u00e1i \u0110\u1ea5t. T h\u1eddi k\u1ef3 b\u0103ng gi\u00e1 Ph\u1ed3n d\u01b0\u01a1ng c\u00e1ch \u0111\u00e2y 80 v\u1ea1n n\u0103m, th\u1eddi k\u1ef3 b\u0103ng gi\u00e1 \u0110\u1ea1i c\u00f4 c\u00e1ch \u0111\u00e2y 50 v\u1ea1n n\u0103m, th\u1eddi k\u1ef3 b\u0103ng gi\u00e1 L\u01b0 s\u01a1n c\u00e1ch \u0111\u00e2y 30 v\u1ea1n n\u0103m \u0111\u1ec1u c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y nh\u1eefng ch\u1ee9ng c\u1ee9 kh\u00f4ng kh\u00ed bi\u1ebfn l\u1ea1nh trong ho\u00e1 th\u1ea1ch.<\/p>\n\n\n\n
Nh\u01b0 ta \u0111\u00e3 bi\u1ebft, kh\u00ed h\u1eadu kh\u00e1c nhau th\u00ec s\u1ef1 ph\u00e2n b\u1ed1 ch\u1ee7ng lo\u1ea1i c\u1ee7a th\u1ef1c v\u1eadt c\u0169ng kh\u00e1c nhau. C\u00e1c nh\u00e0 c\u1ed5 sinh v\u1eadt h\u1ecdc c\u0103n c\u1ee9 s\u1ef1 bi\u1ebfn \u0111\u1ed5i ph\u1ea5n hoa c\u1ee7a th\u1ef1c v\u1eadt n\u1eb1m d\u01b0\u1edbi \u0111\u1ea5t l\u00e0 c\u00f3 th\u1ec3 \u0111o\u00e1n bi\u1ebft \u0111\u01b0\u1ee3c kh\u00ed h\u1eadu ng\u00e0y x\u01b0a. V\u00ed d\u1ee5 s\u1ef1 ph\u00e2n t\u00edch ph\u1ea5n hoa ho\u00e1 \u0111\u00e1 ch\u1ee9ng t\u1ecf: T h\u01b0\u1ee3ng H\u1ea3i c\u00e1ch \u0111\u00e2y 7000 – 5000 n\u0103m T CN, ph\u1ea5n hoa c\u00e2y th\u00f4ng \u0111\u00e3 gi\u1ea3m \u00edt r\u00f5 r\u1ec7t, c\u00f2n ph\u1ea5n hoa \u1edf nh\u1eefng c\u00e2y l\u00e1 r\u1ed9ng, th\u01b0\u1eddng xanh l\u1ea1i t\u0103ng l\u00ean, bi\u1ebfn th\u00e0nh lo\u1ea1i c\u00e2y chi\u1ebfm \u01b0u th\u1ebf. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 th\u1ea3m th\u1ef1c v\u1eadt T h\u01b0\u1ee3ng H\u1ea3i th\u1eddi \u0111\u00f3 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi th\u1ea3m th\u1ef1c v\u1eadt mi\u1ec1n Nam Chi\u1ebft Giang hi\u1ec7n nay, c\u0103n c\u1ee9 v\u00e0o \u0111\u00f3 c\u00f3 th\u1ec3 bi\u1ebft \u0111\u01b0\u1ee3c th\u1eddi \u0111\u00f3 nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n ng\u00e0y nay kho\u1ea3ng 2 – 3\u00b0C, thu\u1ed9c kh\u00ed h\u1eadu n\u00f3ng \u1ea9m. C\u00e1ch \u0111\u00e2y kho\u1ea3ng 4000 n\u0103m ph\u1ea5n hoa th\u00f4ng t\u0103ng nhi\u1ec1u, ph\u1ea5n hoa c\u00e2y l\u00e1 r\u1ed9ng kh\u00f4ng th\u1ea5y n\u1eefa, ch\u1ee9ng t\u1ecf th\u1eddi k\u1ef3 \u1ea5y thu\u1ed9c kh\u00ed h\u1eadu l\u1ea1nh m\u00e1t.<\/p>\n\n\n\n
G\u1ea7n \u0111\u00e2y \u1edf t\u1ea7ng b\u0103ng g\u1ea7n Nam C\u1ef1c ng\u01b0\u1eddi ta t\u00ecm th\u1ea5y m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng r\u1ea5t l\u00fd th\u00fa: M\u1ed9t s\u1ed1 n\u0103m kh\u00ed h\u1eadu kh\u00e1c th\u01b0\u1eddng, trong l\u1edbp b\u0103ng c\u00f3 nh\u1eefng d\u1ea5u v\u1ebft r\u1ea5t r\u00f5. V\u00ed d\u1ee5 n\u0103m 79, ho\u1ea3 di\u1ec7m s\u01a1n \u1edf \u0111\u00f3 \u0111\u00e3 g\u00e2y n\u00ean m\u01b0a axit, trong l\u1edbp b\u0103ng c\u00f2n l\u01b0u l\u1ea1i c\u00e1c t\u00e0n t\u00edch, n\u0103m 1815 ho\u1ea3 di\u1ec7m s\u01a1n \u1edf In\u0111\u00f4n\u00eaxia \u0111\u00e3 l\u00e0m cho s\u1ea3n l\u01b0\u1ee3ng n\u00f4ng nghi\u1ec7p \u1edf M\u1ef9 b\u1ecb gi\u1ea3m xu\u1ed1ng v\u00e0 l\u00e0m cho v\u00f9ng<\/p>\n\n\n\n
T haiush\u01a1 \u1edf London tr\u1edf th\u00e0nh n\u0103m l\u1ea1nh gi\u00e1, t\u1ea5t c\u1ea3 c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y \u0111\u1ec1u \u0111\u01b0\u1ee3c ghi ch\u00e9p trong l\u1edbp b\u0103ng.<\/p>\n\n\n\n
Ngo\u00e0i ra s\u1ef1 t\u0103ng hay gi\u1ea3m c\u00e1c d\u00f2ng s\u00f4ng b\u0103ng tr\u00ean n\u00fai cao c\u0169ng c\u00f3 th\u1ec3 cho ta bi\u1ebft \u0111\u01b0\u1ee3c kh\u00ed h\u1eadu \u0111\u1eddi x\u01b0a. Theo kh\u1ea3o s\u00e1t c\u1ee7a c\u00e1c nh\u00e0 khoa h\u1ecdc, tr\u00ean n\u00fai Anpix\u01a1 ch\u00e2u \u00c2u l\u01b0\u1ee3ng b\u0103ng ch\u1ec9 c\u00f2n b\u1eb1ng m\u1ed9t n\u1eeda c\u1ee7a n\u0103m 1950, t\u1ed5ng di\u1ec7n t\u00edch s\u00f4ng b\u0103ng gi\u1ea3m th\u1ea5p 30% – 40%. \u0110i\u1ec1u \u0111\u00f3 ch\u1ee9ng t\u1ecf ch\u00e2u \u00c2u h\u01a1n 100 n\u0103m tr\u01b0\u1edbc l\u1ea1nh h\u01a1n b\u00e2y gi\u1edd r\u1ea5t nhi\u1ec1u.<\/p>\n\n\n\n
T \u1eeb kho\u00e1: Ho\u00e1 th\u1ea1ch; Kh\u00ed h\u1eadu x\u01b0a.<\/p>\n","protected":false},"excerpt":{"rendered":"
Tr\u00e1i \u0110\u1ea5t ta sinh s\u1ed1ng \u0111\u00e3 c\u00f3 l\u1ecbch s\u1eed m\u1ea5y t\u1ec9 n\u0103m, nh\u01b0ng lo\u00e0i ng\u01b0\u1eddi d\u00f9ng v\u0103n t\u1ef1 \u0111\u1ec3 ghi ch\u00e9p m\u1edbi ch\u1ec9 m\u1ea5y ngh\u00ecn n\u0103m. H\u00e0ng tr\u0103m, h\u00e0ng ngh\u00ecn, h\u00e0ng v\u1ea1n, th\u1eadm ch\u00ed h\u00e0ng tr\u0103m tri\u1ec7u n\u0103m v\u1ec1 tr\u01b0\u1edbc, khi \u0111\u00f3 kh\u00ed h\u1eadu nh\u01b0 th\u1ebf n\u00e0o? \u0110i\u1ec1u \u0111\u00f3 \u0111\u1ed1i v\u1edbi nghi\u00ean c\u1ee9u xu th\u1ebf […]<\/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-10021","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\/10021","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=10021"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10021\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=10021"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=10021"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=10021"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}