{"id":3326,"date":"2024-11-12T15:24:40","date_gmt":"2024-11-12T08:24:40","guid":{"rendered":"https:\/\/vietgiaminh.com.vn\/?p=3326"},"modified":"2024-11-12T16:19:46","modified_gmt":"2024-11-12T09:19:46","slug":"vai-tro-cua-phan-kali-doi-voi-cay-lua","status":"publish","type":"post","link":"https:\/\/vietgiaminh.com.vn\/en\/vai-tro-cua-phan-kali-doi-voi-cay-lua\/","title":{"rendered":"VAI TR\u00d2 C\u1ee6A PH\u00c2N KALI \u0110\u1ed0I V\u1edaI C\u00c2Y L\u00daA"},"content":{"rendered":"

Kali l\u00e0 th\u00e0nh ph\u1ea7n quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t l\u00faa g\u1ea1o, ph\u00e2n Kali \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng l\u00faa g\u1ea1o, kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu c\u0169ng nh\u01b0 n\u0103ng su\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u00e2y l\u00faa.<\/span><\/p>\n

Kali l\u00e0 nguy\u00ean t\u1ed1 ph\u1ed5 bi\u1ebfn th\u1ee9 b\u1ea3y tr\u00ean v\u1ecf tr\u00e1i \u0111\u1ea5t, v\u00e0 kh\u00f4ng th\u1ec3 thay th\u1ebf trong s\u1ea3n xu\u1ea5t n\u00f4ng nghi\u1ec7p. T\u1ea5t c\u1ea3 c\u00e1c lo\u00e0i \u0111\u1ed9ng v\u1eadt v\u00e0 th\u1ef1c v\u1eadt \u0111\u1ec1u c\u1ea7n kali v\u1edbi s\u1ed1 l\u01b0\u1ee3ng l\u1edbn v\u00e0 kali l\u00e0 m\u1ed9t trong ba y\u1ebfu t\u1ed1 \u0111a l\u01b0\u1ee3ng thi\u1ebft y\u1ebfu cho c\u00e2y tr\u1ed3ng.<\/p>\n

Kali tham gia v\u00e0o nhi\u1ec1u qu\u00e1 tr\u00ecnh sinh l\u00fd h\u1ecdc, nh\u01b0 sinh tr\u01b0\u1edfng, chuy\u1ec3n \u0111\u1ed9ng, truy\u1ec1n t\u00edn hi\u1ec7u, \u0111i\u1ec1u ch\u1ec9nh \u00e1p su\u1ea5t tr\u01b0\u01a1ng v\u00e0 sinh s\u1ea3n. Do \u0111\u00f3, thi\u1ebfu h\u1ee5t kali l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y ra h\u00e0ng lo\u1ea1t c\u00e1c r\u1ed1i lo\u1ea1n trong c\u00e1c qu\u00e1 tr\u00ecnh trao \u0111\u1ed5i ch\u1ea5t \u1edf c\u00e2y tr\u1ed3ng, s\u1ebd d\u1eabn \u0111\u1ebfn gi\u1ea3m n\u0103ng su\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u00e2y tr\u1ed3ng.<\/p>\n

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Vai tr\u00f2 c\u1ee7a ph\u00e2n Kali \u0111\u1ed1i v\u1edbi c\u00e2y l\u00faa g\u1ea1o<\/span><\/em><\/figcaption><\/figure>\n

B\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y th\u1ec3 th\u1ec3 hi\u1ec7n chi ti\u1ebft vai tr\u00f2 ph\u00e2n b\u00f3n Kali c\u0169ng nh\u01b0 c\u00e1ch nh\u1eadn bi\u1ebft c\u00e2y l\u00faa b\u1ecb thi\u1ebfu Kali v\u00e0 c\u00e1ch b\u00f3n.<\/span><\/p>\n

Vai tr\u00f2 c\u1ee7a ph\u00e2n Kali \u0111\u1ed1i v\u1edbi c\u00e2y l\u00faa g\u1ea1o<\/span><\/strong><\/h2>\n

Kali l\u00e0 m\u1ed9t trong 3 th\u00e0nh ph\u1ea7n quan tr\u1ecdng nh\u1ea5t khi b\u00f3n ph\u00e2n cho c\u00e2y l\u00faa c\u00f9ng v\u1edbi \u0110\u1ea1m l\u00e0 L\u00e2n, Ph\u00e2n b\u00f3n Kali \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn: ch\u1ed1ng \u0111\u1ed5, quang H\u1ee3p v\u00e0 Ch\u1ed1ng ch\u1ecbu m\u00f4i tr\u01b0\u1eddng.<\/span><\/p>\n

Ch\u1ed1ng \u0111\u1ed5 cho c\u00e2y l\u00faa<\/strong><\/span><\/h3>\n

Sau b\u00e3o Yagi<\/a> ch\u00fang ta c\u00e0ng th\u1ea5y kh\u1ea3 n\u0103ng ch\u1ed1ng \u0111\u1ed5 c\u1ee7a c\u00e2y l\u00faa quan tr\u1ecdng nh\u01b0 th\u1ebf n\u00e0o, c\u00e2y l\u00faa \u0111\u1ed5 c\u00f3 th\u1ec3 khi\u1ebfn c\u00e1nh \u0111\u1ed3ng m\u1ea5t tr\u1eafng ch\u1ec9 sau m\u1ed9t c\u01a1n b\u00e3o, \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0111\u1ed5 cho c\u00e2y l\u00faa ch\u00fang ta cung c\u1ea5p \u0111\u1ee7 ph\u00e2n b\u00f3n Kali.<\/span><\/p>\n

Ph\u00e2n b\u00f3n Kali th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh l\u00e0m d\u00e0y th\u00e2n, ph\u00e1t tri\u1ec3n c\u00e1c m\u00f4 c\u01a1 h\u1ecdc v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1ebbo dai cho c\u00e2y t\u1eeb \u0111\u00f3 n\u00e2ng cao kh\u1ea3 n\u0103ng ch\u1ed1ng \u0111\u1ed5 do m\u01b0a gi\u00f3.<\/span><\/p>\n

Kh\u1ea3 n\u0103ng quang h\u1ee3p<\/strong><\/span><\/h3>\n

Quang h\u1ee3p l\u00e0 qu\u00e1 tr\u00ecnh quan tr\u1ecdng gi\u00fap cung c\u1ea5p \u0111\u1ee7 ch\u1ea5t dinh d\u01b0\u1ee1ng cho c\u00e2y l\u00faa v\u00e0 l\u00e0m gi\u00e0u h\u1ea1t, Kali gi\u00fap k\u00edch ho\u1ea1t enzyme th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh t\u1ed5ng h\u1ee3p v\u00e0 v\u1eadn chuy\u1ec3n carbohydrate gi\u00fap t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng quang h\u1ee3p c\u1ee7a l\u00e1.<\/span><\/p>\n

Kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu<\/strong><\/span><\/h3>\n

Ph\u00e2n b\u00f3n Kali gi\u00fap t\u0103ng s\u1ee9c \u0111\u1ec1 kh\u00e1ng cho c\u00e2y l\u00faa, nh\u1edd v\u1eady gi\u00fap c\u00e2y l\u00faa ch\u1ed1ng ch\u1ecbu t\u1ed1t v\u1edbi m\u00f4i tr\u01b0\u1eddng ch\u1ed1ng l\u1ea1i hi\u1ec7n t\u01b0\u1ee3ng b\u1ea5t l\u1ee3i c\u1ee7a th\u1eddi ti\u1ebft nh\u01b0 h\u1ea1n h\u00e1n, nhi\u1ec7t \u0111\u1ed9 cao, gi\u00f3 r\u00e9t. \u0110\u1ea3m b\u1ea3o s\u1ef1 \u1ed5n \u0111\u1ecbnh cho c\u00e2y l\u00faa<\/span><\/p>\n

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Kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu<\/em><\/span><\/figcaption><\/figure>\n

Vai tr\u00f2 c\u1ee7a ph\u00e2n Kali \u0111\u1ed1i v\u1edbi l\u00faa theo t\u1eebng giai \u0111o\u1ea1n sinh tr\u01b0\u1edfng<\/span><\/strong><\/h2>\n

Giai \u0111o\u1ea1n \u0111\u1ebb nh\u00e1nh b\u00f3n th\u00fac (\u0111\u1ee3t 1):<\/strong><\/span><\/h3>\n

Giai \u0111o\u1ea1n b\u00f3n th\u00fac \u0111\u1ee3t 1\u00a0<\/span><\/span>t\u1eeb 20-25 ng\u00e0y sau s\u1ea1 khi l\u00faa b\u00e9n r\u1ec5<\/span><\/span>.<\/span><\/span>\u00a0B\u00e0<\/span><\/span>\u00a0con b\u00f3n\u00a0<\/span><\/span>ph\u00e2n\u00a0<\/span><\/span>\u1edf giai \u0111o\u1ea1n n\u00e0y gi\u00fap l\u00faa b\u1ed5 sung<\/span><\/span>\u00a0Kali, t\u0103ng kh\u1ea3 n\u0103ng\u00a0<\/span><\/span>h\u1ea5p th\u1ee5 c\u00e1c d\u01b0\u1ee1ng ch\u1ea5t kh\u00e1c<\/span><\/span>,<\/span><\/span>gi\u00fap c\u00e2y ch\u1eafc kh\u1ecfe h\u01a1n. <\/span><\/span><\/p>\n

Li\u1ec1u l\u01b0\u1ee3ng K<\/span><\/span>ali \u1edf\u00a0<\/span><\/span>giai \u0111o\u1ea1n n\u00e0y<\/span><\/span>, b\u00f3n kho\u1ea3ng<\/span><\/span>\u00a020-30kg\/ha\u00a0<\/span><\/span>nh\u1eb1m\u00a0<\/span><\/span>t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng ch<\/span><\/span>\u1ecb<\/span><\/span>u c\u1ee7a\u00a0<\/span><\/span>l\u00faa<\/span><\/span>\u00a0\u0111\u1ed1i v\u1edbi th\u1eddi ti\u1ebft v\u00e0 s\u00e2u b\u1ec7nh h\u1ea1i<\/span><\/span>. T\u00e1c d\u1ee5ng c\u1ee7a Kali \u0111\u1ed1i v\u1edbi l\u00faa \u1edf giai \u0111o\u1ea1n n\u00e0y nh\u1eb1m t<\/span><\/span>h\u00fac \u0111\u1ea9y s\u1ef1 t\u1ed5ng h\u1ee3p<\/span><\/span>,<\/span><\/span>\u00a0b\u1ed5 tr\u1ee3 cho c\u00e2y l\u00faa h\u1ea5p thu m\u1ed9t s\u1ed1 nguy\u00ean t\u1ed1 \u0111a, trung<\/span><\/span>,<\/span><\/span>\u00a0vi l\u01b0\u1ee3ng kh\u00e1c.<\/span><\/span><\/p>\n

Giai \u0111o\u1ea1n l\u00e0m \u0111\u00f2ng b\u00f3n th\u00fac (\u0111\u1ee3t 2):<\/span><\/strong>
\nGiai \u0111o\u1ea1n l\u00e0m \u0111\u00f2ng b\u00f3n th\u00fac (\u0111\u1ee3t 2) t\u1eeb 38-45 ng\u00e0y sau s\u1ea1. Giai \u0111o\u1ea1n n\u00e0y r\u1ea5t quan tr\u1ecdng khi l\u00faa b\u00e0 con \u0111\u1ee9ng c\u00e1i v\u00e0 chu\u1ea9n b\u1ecb l\u00e0m \u0111\u00f2ng. B\u00f3n Kali \u1edf th\u1eddi \u0111i\u1ec3m tr\u01b0\u1edbc l\u00fac l\u00faa tr\u1ed5 b\u00f4ng gi\u00fap h\u1ea5p th\u1ee5 d\u01b0\u1ee1ng ch\u1ea5t t\u1ed1t h\u01a1n.<\/p>\n

H\u1ea5p th\u1ee5 d\u01b0\u1ee1ng ch\u1ea5t t\u1ed1t h\u01a1n s\u1ebd c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng b\u00f4ng l\u00faa v\u00e0t\u0103ng s\u1ed1 l\u01b0\u1ee3ng b\u00f4ng l\u00faa tr\u00ean c\u00e2y. \u0110\u1ed3ng th\u1eddi, c\u0169ng l\u00e0m t\u0103ng tr\u1ecdng l\u01b0\u1ee3ng h\u1ea1t, ch\u1ea5t l\u01b0\u1ee3ng h\u1ea1t g\u1ea1o.<\/p>\n

Ngo\u00e0i ra, Kali c\u00f2n l\u00e0m cho b\u1ed9 r\u1ec5 kho\u1ebb v\u00e0 r\u1eafn ch\u1eafc, gi\u00fap h\u1ea1n ch\u1ebf \u0111\u1ed7 ng\u00e3 c\u00e2y khi b\u00f4ng l\u00faa tr\u1ed7. Li\u1ec1u l\u01b0\u1ee3ng \u1edf giai \u0111o\u1ea1n n\u00e0y, b\u00e0 con b\u00f3n kho\u1ea3ng 40-60kg\/ha cho giai \u0111o\u1ea1n n\u00e0y.<\/p>\n

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Vai tr\u00f2 c\u1ee7a ph\u00e2n Kali \u0111\u1ed1i v\u1edbi l\u00faa theo t\u1eebng giai \u0111o\u1ea1n sinh tr\u01b0\u1edfng<\/span><\/em><\/figcaption><\/figure>\n

Bi\u1ec3u hi\u1ec7n c\u1ee7a c\u00e2y l\u00faa thi\u1ebfu Kali<\/strong><\/span><\/h2>\n

Nh\u01b0 ch\u00fang ta bi\u1ebft, ph\u00e2n b\u00f3n Kali \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng c\u00e2y L\u00faa, v\u00ec v\u1eady nh\u1eefng bi\u1ec3u hi\u1ec7n c\u00e2y L\u00faa thi\u1ebfu Kali c\u0169ng c\u0169ng li\u00ean quan \u0111\u1ebfn nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/span><\/p>\n

C\u00e2y l\u00faa ch\u1eadm l\u1edbn<\/strong><\/span><\/h3>\n

Giai \u0111o\u1ea1n \u0111\u1ea7u thi\u1ebfu Kali c\u00e2y L\u00faa s\u1ebd c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng sinh tr\u01b0\u1edfng ch\u1eadm th\u00e2n c\u00e2y l\u00f9n v\u00e0 g\u1ea7y. L\u00e1 c\u00e2y L\u00faa c\u00f3 m\u00e0u nh\u1ea1t h\u01a1n v\u00e0 m\u00e0u l\u00e1 chuy\u1ec3n sang m\u00e0u v\u00e0ng, kh\u00f4 d\u1ea7n v\u00e0 t\u1ea1o th\u00e0nh nh\u1eefng \u0111\u1ed1m n\u00e2u.<\/span><\/p>\n

Khi c\u00e2y L\u00faa b\u1ecb thi\u1ebfu Kali n\u1eb7ng s\u1ebd \u1ea3nh h\u01b0\u1edfng nghi\u1ec7m tr\u1ecdng \u0111\u1ebfn sinh tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e2y L\u00faa, g\u00e2y ra c\u00e1c m\u1ed9t s\u1ed1 b\u1ec7nh nh\u01b0 B\u1ea1c l\u00e1.<\/span><\/p>\n

Th\u00e2n y\u1ebfu, D\u1ec5 \u0111\u1ed5 ng\u00e3<\/strong><\/span><\/h3>\n

C\u00e2y L\u00faa b\u1ecb thi\u1ebfu Kali, c\u00e1c m\u00f4 c\u01a1 k\u00e9m ph\u00e1t tri\u1ec3n l\u00e0m c\u00e2y l\u00faa m\u1ecfng, d\u1eabn \u0111\u1ebfn c\u00e2y l\u00faa d\u1ec5 b\u1ecb \u0111\u1ed5 ng\u00e3, vi\u1ec7c c\u00e2y L\u00faa d\u1ec5 b\u1ecb \u0111\u1ed5 ng\u00e3 \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn kh\u1ea3 n\u0103ng quang h\u1ee3p, gi\u1ea3m n\u0103ng su\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u00e2y L\u00faa.<\/span><\/p>\n

Gi\u1ea3m n\u0103ng su\u1ea5t<\/strong><\/span><\/h3>\n

Thi\u1ebfu Kali s\u1ebd \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 c\u00e2y L\u00faa nh\u01b0:<\/span><\/p>\n