{"id":415,"date":"2022-10-29T07:51:10","date_gmt":"2022-10-29T07:51:10","guid":{"rendered":"https:\/\/vattutrongtrot.net\/?p=415"},"modified":"2022-10-29T07:51:10","modified_gmt":"2022-10-29T07:51:10","slug":"ky-thuat-trong-va-cham-soc-cay-ken-hong","status":"publish","type":"post","link":"https:\/\/vattutrongtrot.net\/index.php\/2022\/10\/29\/ky-thuat-trong-va-cham-soc-cay-ken-hong\/","title":{"rendered":"K\u1ef8 THU\u1eacT TR\u1ed2NG V\u00c0 CH\u0102M S\u00d3C C\u00c2Y K\u00c8N H\u1ed2NG"},"content":{"rendered":"
    \n
  1. \u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a c\u00e2y k\u00e8n h\u1ed3ng :<\/strong><\/li>\n<\/ol>\n

    \u2013 L\u00e0 lo\u1ea1i c\u00e2y th\u00e2n g\u1ed7 l\u00e2u n\u0103m nh\u01b0ng k\u00edch th\u01b0\u1edbc c\u00e2y kh\u00f4ng qu\u00e1 l\u1edbn. Th\u01b0\u1eddng c\u00e2y tr\u01b0\u1edfng th\u00e0nh cao t\u1eeb 5 \u2013 12m v\u00e0 c\u00f3 \u0111\u01b0\u1eddng k\u00ednh th\u00e2n t\u1eeb 40 \u2013 50cm. Th\u00e2n c\u00e2y s\u1ea7n s\u00f9i, v\u1ecf m\u00e0u x\u00e1m tr\u1eafng v\u00e0 ph\u00e2n th\u00e0nh nhi\u1ec1u c\u00e0nh l\u1edbn nh\u1ecf kh\u00e1c nhau.<\/p>\n

    \u2013 C\u00e2y k\u00e8n h\u1ed3ng\u00a0c\u00f3 t\u00e1n l\u00e1 r\u1ed9ng n\u00ean di\u1ec7n t\u00edch che ph\u1ee7 r\u1ea5t l\u1edbn. \u0110\u1eb7c bi\u1ec7t nh\u1eefng l\u00e1 k\u00e8n h\u1ed3ng c\u00f3 d\u1ea1ng l\u00e1 k\u00e9p ch\u00e2n v\u1ecbt v\u1edbi 3 \u0111\u1ebfn 5 l\u00e1 ch\u00e9p. M\u1eb7t tr\u01b0\u1edbc c\u1ee7a l\u00e1 nh\u1eb5n, m\u00e9p nguy\u00ean v\u00e0 cu\u1ed1ng l\u00e1 d\u00e0i t\u1eeb 3cm\u00a0 \u0111\u1ebfn 12cm.\u00a0 L\u00fac c\u00f2n non l\u00e1 c\u00f3 m\u00e0u xanh l\u00e1 m\u1ea1 v\u00e0 gi\u00e0 m\u00e0u xanh c\u00e0ng hi\u1ec7n r\u00f5. M\u00e0u c\u1ee7a l\u00e1 l\u00e0m n\u1ed5i b\u00ean n\u00ean s\u1eafc h\u1ed3ng c\u1ee7a hoa.<\/p>\n

    \u2013 Hoa c\u00f3 h\u00ecnh d\u1ea1ng c\u00e1i loa k\u00e8n hay chi\u1ebfc chu\u00f4ng n\u00ean \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 hoa k\u00e8n h\u1ed3ng, hoa chu\u00f4ng h\u1ed3ng. Hoa kh\u00f4ng m\u1ecdc \u0111\u01a1n l\u1ebb t\u1eebng c\u00e0nh m\u00e0 m\u1ecdc s\u00e1t nhau t\u1ea1o th\u00e0nh m\u1ed9t c\u1ee5m hoa c\u1ef1c k\u1ef3 \u0111\u1eb9p m\u1eaft. \u0110\u1eb7c bi\u1ec7t, v\u00e0o m\u00f9a hoa n\u1edf r\u1ed9, h\u1ea7u h\u1ebft l\u00e1 c\u00e2y \u0111\u1ec1u r\u1ee5ng t\u1ea1o n\u00ean m\u1ed9t b\u1ee9c tranh v\u1edbi gam m\u00e0u h\u1ed3ng ch\u1ee7 \u0111\u1ed9ng. C\u0169ng ch\u00ednh v\u00ec th\u1ebf khi nh\u1eafc t\u1edbi m\u00f9a hoa k\u00e8n h\u1ed3ng ng\u01b0\u1eddi ta th\u01b0\u1eddng v\u00ed nh\u01b0 m\u00f9a hoa anh \u0111\u00e0o \u1edf x\u1ee9 s\u1edf m\u1eb7t tr\u1eddi m\u1ecdc. K\u00e8n h\u1ed3ng ra hoa sau kho\u1ea3ng 2 n\u0103m tu\u1ed5i v\u00e0o kho\u1ea3ng t\u1eeb th\u00e1ng 4 \u0111\u1ebfn th\u00e1ng 6 h\u1eb1ng n\u0103m.<\/p>\n

    \u2013 K\u1ebft th\u00fac m\u00f9a hoa s\u1ebd l\u00e0 b\u1eaft \u0111\u1ea7u cho m\u00f9a ra qu\u1ea3. Qu\u1ea3 c\u00e2y h\u00ecnh qu\u1ea3 \u0111\u1eadu thu\u00f4n d\u00e0i nh\u00ecn gi\u1ed1ng nh\u01b0 qu\u1ea3 \u0111\u1ed7 \u0111en. Khi ch\u00edn qu\u1ea3 r\u1ee5ng v\u00e0 b\u00ean trong c\u00f3 r\u1ea5t nhi\u1ec1u h\u1ea1t nh\u1ecf.<\/p>\n

    – C\u00e2y k\u00e8n h\u1ed3ng sinh tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n ch\u1eadm h\u01a1n so v\u1edbi nh\u1eefng lo\u1ea1i c\u00e2y th\u00e2n g\u1ed7 l\u00e2u n\u0103m. Ch\u00fang thu\u1ed9c nh\u00f3m c\u00e2y \u01b0a s\u00e1ng, \u0111\u1ed9 \u1ea9m \u0111\u1ea5t cao. Trong nh\u1eefng n\u0103m \u0111\u1ea7u, c\u00e2y sinh tr\u01b0\u1edfng ch\u1eadm v\u00e0 c\u1ea7n c\u00f3 ch\u1ebf \u0111\u1ed9 ch\u0103m s\u00f3c \u0111\u1eb7c bi\u1ec7t. Mu\u1ed1n hoa n\u1edf \u0111\u00fang m\u00f9a v\u00e0 hoa to, m\u00e0u s\u1eafc b\u1eaft m\u1eaft th\u00ec c\u1ea7n cung c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 \u00e1nh s\u00e1ng v\u00e0 ch\u1ea5t dinh d\u01b0\u1ee1ng. Th\u01b0\u1eddng, c\u00e2y ra hoa sau 2 n\u0103m tu\u1ed5i v\u00e0o kho\u1ea3ng th\u00e1ng 4 \u0111\u1ebfn th\u00e1ng 6. \u0110\u00e2y l\u00e0 th\u1eddi \u0111i\u1ec3m nh\u1eefng cung \u0111\u01b0\u1eddng k\u00e8n h\u1ed3ng tr\u1edf n\u00ean lung linh v\u00e0 th\u01a1 m\u1ed9ng.<\/p>\n

    2. T\u00e1c d\u1ee5ng c\u1ee7a c\u00e2y k\u00e8n h\u1ed3ng :<\/strong><\/p>\n

    \u2013 C\u00e2y k\u00e8n h\u1ed3ng l\u00e0 m\u1ed9t lo\u00e0i c\u00e2y hoa t\u01b0\u01a1i \u0111\u1eb9p c\u00f3 t\u00e1c d\u1ee5ng t\u00f4 \u0111i\u1ec3m th\u00eam cho v\u1ebb \u0111\u1eb9p c\u1ee7a c\u00e1c con \u0111\u01b0\u1eddng, tuy\u1ebfn ph\u1ed1, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf \u0111\u00f4 th\u1ecb, gi\u00fap mang l\u1ea1i b\u00f3ng m\u00e1t cho c\u00e1c con \u0111\u01b0\u1eddng tuy\u1ebfn ph\u1ed1 \u0111\u00f3 v\u00e0o nh\u1eefng ng\u00e0y n\u1eafng oi \u1ea3.<\/p>\n

    \u2013 C\u00e2y k\u00e8n h\u1ed3ng v\u1ed1n l\u00e0 bi\u1ec3u t\u01b0\u1ee3ng cho s\u1ef1 may m\u1eafn, th\u1ecbnh v\u01b0\u1ee3ng n\u00ean \u0111\u01b0\u1ee3c r\u1ea5t \u01b0a chu\u1ed9ng.<\/p>\n

    \u2013\u00a0 C\u00e2y k\u00e8n h\u1ed3ng s\u1ebd gi\u00fap thanh l\u1ecdc b\u1ea7u kh\u00f4ng kh\u00ed, gi\u00fap m\u00f4i tr\u01b0\u1eddng xanh, s\u1ea1ch, \u0111\u1eb9p h\u01a1n<\/p>\n

    3. Quy tr\u00ecnh \u01b0\u01a1m c\u00e2y :<\/strong><\/p>\n

    B\u01b0\u1edbc 1 :<\/strong>\u00a0chu\u1ea9n b\u1ecb khay \u01b0\u01a1m c\u00f3 nhi\u1ec1u l\u1ed7 (b\u1eb1ng x\u1ed1p ho\u1eb7c nh\u1ef1a)<\/p>\n

    B\u01b0\u1edbc 2 :<\/strong>\u00a0chu\u1ea9n b\u1ecb gi\u00e1 th\u1ec3 \u0111\u1ec3 \u01b0\u01a1m c\u00e2y<\/p>\n

    \u2013 Gi\u00e1 th\u1ec3 g\u1ed3m x\u01a1 d\u1eeba (c\u1ea7n ph\u1ea3i x\u1eed l\u00fd ch\u1ea5t ligin v\u00e0 tanin) v\u00e0 ph\u00e2n chu\u1ed3ng (ph\u00e2n tr\u00f9n qu\u1ebf ho\u1eb7c ph\u00e2n b\u00f2 ho\u1eb7c ph\u00e2n tr\u00e2u ho\u1eb7c ph\u00e2n g\u00e0, c\u1ea7n ph\u1ea3i x\u1eed l\u00fd \u1ee7 hoai \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c m\u1ea7m b\u1ec7nh vi khu\u1ea9n c\u00f3 trong ph\u00e2n chu\u1ed3ng)<\/p>\n

    \u2013 Sau khi x\u1eed l\u00fd xong x\u01a1 d\u1eeba v\u00e0 ph\u00e2n chu\u1ed3ng th\u00ec ch\u00fang ta tr\u1ed9n h\u1ed7n h\u1ee3p gi\u00e1 th\u1ec3 n\u00e0y x\u01a1 d\u1eeba + ph\u00e2n chu\u1ed3ng theo t\u1ef7 l\u1ec7 : 8 \u2013 2 l\u1ea1i v\u1edbi nhau.<\/p>\n

    B\u01b0\u1edbc 3 :<\/strong>\u00a0ch\u1ecdn h\u1ea1t gi\u1ed1ng :<\/p>\n

    \u2013 Ch\u1ecdn nh\u1eefng c\u00e2y kh\u1ecfe m\u1ea1nh, kh\u00f4ng b\u1ecb s\u00e2u b\u1ec7nh, d\u00e1ng \u0111\u1eb9p, t\u00e1n ra \u0111\u1ec1u \u0111\u1ec3 l\u00e0m gi\u1ed1ng.<\/p>\n

    \u2013 H\u1ea1t gi\u1ed1ng c\u1ea7n \u0111\u01b0\u1ee3c chu\u1ea9n b\u1ecb k\u1ef9 \u0111\u1ec3 mang l\u1ea1i hi\u1ec7u qu\u1ea3 cao, n\u00ean l\u1ef1a ch\u1ecdn h\u1ea1t gi\u1ed1ng F1 s\u1ebd t\u1ed1t h\u01a1n, h\u1ea1t gi\u1ed1ng c\u1ea7n ph\u1ea3i s\u1ea1ch, kh\u1ecfe, c\u00f3 s\u1ee9c \u0111\u1ec1 kh\u00e1ng t\u1ed1t v\u00e0 nhanh ph\u00e1t tri\u1ec3n.<\/p>\n

    B\u01b0\u1edbc 4 :<\/strong>\u00a0X\u1eed l\u00fd h\u1ea1t gi\u1ed1ng tr\u01b0\u1edbc khi gieo :<\/p>\n

    \u2013 \u0110\u1ea7u ti\u00ean ta c\u1ea7n chu\u1ea9n b\u1ecb m\u1ed9t ch\u1eadu n\u01b0\u1edbc \u1ea5m. N\u01b0\u1edbc ta s\u1ebd \u0111ong theo t\u1ef7 l\u1ec7 ba l\u1ea1nh v\u00e0 hai n\u00f3ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o n\u01b0\u1edbc c\u00f3 \u0111\u1ed9 \u1ea5m t\u1eeb 45 \u0111\u1ebfn 50 \u0111\u1ed9 C.<\/p>\n

    \u2013 Ti\u1ebfp \u0111\u1ebfn, ta c\u1ea7n r\u1eeda s\u1ea1ch c\u00e1c h\u1ea1t gi\u1ed1ng \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c b\u1ee5i hay c\u1eb7n b\u1ea9n b\u00e1m xung quanh h\u1ea1t. T\u1eeb \u0111\u00f3 gi\u00fap g\u1ed9t r\u1eeda s\u1ea1ch s\u1ebd h\u1ea1t gi\u1ed1ng, tr\u00e1nh c\u00e1c lo\u1ea1i vi khu\u1ea9n g\u00e2y m\u1ea7m b\u1ec7nh l\u00fac gieo tr\u1ed3ng.<\/p>\n

    \u2013 Sau \u0111\u00f3, ta \u0111em h\u1ea1t gi\u1ed1ng \u0111\u00e3 \u0111\u01b0\u1ee3c r\u1eeda n\u01b0\u1edbc s\u1ea1ch cho v\u00e0o ng\u00e2m trong thau n\u01b0\u1edbc \u0111\u01b0\u1ee3c pha theo t\u1ef7 l\u1ec7 nh\u01b0 tr\u00ean. Th\u1eddi gian ng\u00e2m trong n\u01b0\u1edbc \u1ea5m t\u1ea7m kho\u1ea3n 12-48 ti\u1ebfng.<\/p>\n

    \u2013 Vi\u1ec7c ng\u00e2m n\u01b0\u1edbc \u1ea5m s\u1ebd gi\u00fap l\u00e0m n\u1ee9t v\u1ecf h\u1ea1t d\u1ec5 d\u00e0ng h\u01a1n, t\u1eeb \u0111\u00f3, h\u1ea1t d\u1ec5 d\u00e0ng n\u1ea3y m\u1ea7m v\u00e0 ph\u00e1t tri\u1ec3n trong th\u1eddi gian ng\u1eafn h\u01a1n.<\/p>\n

    B\u01b0\u1edbc 5 :<\/strong>\u00a0Gieo h\u1ea1t<\/p>\n

    \u2013 Ch\u00fang ta cho h\u1ed7n h\u1ee3p gi\u00e1 th\u1ec3 \u0111\u00e3 tr\u1ed9n s\u1eb5n \u1edf b\u01b0\u1edbc 2 v\u00e0o c\u00e1c l\u1ed7 khay \u01b0\u01a1m.<\/p>\n

    \u2013 Sau \u0111\u00f3, b\u1ea1n \u0111em h\u1ea1t gi\u1ed1ng \u0111\u1eb7t m\u1ed7i h\u1ea1t v\u00e0o 1 l\u1ed7, \u1ea4n h\u1ea1t ch\u00ecm xu\u1ed1ng kho\u1ea3ng 0.5 \u2013 0.8cm. Sau \u0111\u00f3 ph\u1ee7 l\u00ean b\u1ec1 m\u1eb7t 1 l\u1edbp x\u01a1 d\u1eeba m\u1ecfng nh\u1eafm tr\u00e1nh d\u1ec5 m\u1edbi nh\u00fa ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi.<\/p>\n

    \u2013 Kh\u00f4ng \u1ea5n h\u1ea1t qu\u00e1 s\u00e2u l\u00e0m h\u1ea1t n\u1ea3y m\u1ea7m k\u00e9m ho\u1eb7c n\u1ea3y m\u1ea7m ng\u01b0\u1ee3c xu\u1ed1ng d\u01b0\u1edbi \u0111\u00e1y khay.<\/p>\n

    \u2013 \u0110\u1ec3 \u0111\u1ea7u m\u1ea7m tr\u1eafng h\u01b0\u1edbng ng\u01b0\u1ee3c xu\u1ed1ng d\u01b0\u1edbi v\u00ec ph\u1ea7n m\u1ea7m tr\u1eafng s\u1ebd l\u00e0 r\u1ec5.<\/p>\n

    \u2013 T\u01b0\u1edbi 2 l\u1ea7n\/ ng\u00e0y. Lu\u00f4n gi\u1eef \u1ea9m cho khay.<\/p>\n

    \u2013 \u0110\u1eb7t khay gi\u1ed1ng \u1edf n\u01a1i c\u00f3 \u00e1nh s\u00e1ng v\u1eeba \u0111\u1ee7, kh\u00f4ng qu\u00e1 gay g\u1eaft.<\/p>\n

    B\u01b0\u1edbc 6 :<\/strong>\u00a0Ch\u0103m s\u00f3c c\u00e2y gi\u1ed1ng :<\/p>\n

    \u2013 M\u1ed7i ng\u00e0y ta n\u00ean l\u01b0u \u00fd t\u01b0\u1edbi c\u00e2y b\u1eb1ng c\u00e1ch phun s\u01b0\u01a1ng \u0111\u1ec1u \u0111\u1eb7n hai l\u1ea7n trong ng\u00e0y. Kh\u00f4ng s\u1eed d\u1ee5ng v\u00f2i n\u01b0\u1edbc qu\u00e1 to s\u1ebd khi\u1ebfn cho c\u00e2y b\u1ecb ng\u1eadp n\u01b0\u1edbc ho\u1eb7c b\u1ecb d\u1eadp h\u1ecfng do t\u00e1c \u0111\u1ed9ng l\u1ef1c c\u1ee7a n\u01b0\u1edbc qu\u00e1 l\u1edbn.<\/p>\n

    \u2013 Ngo\u00e0i ra trong qu\u00e1 tr\u00ecnh c\u00e2y tr\u01b0\u1edfng th\u00e0nh c\u1ea7n ch\u00fa \u00fd lo\u1ea1i b\u1ecf c\u00e1c lo\u1ea1i s\u00e2u b\u1ecd g\u00e2y h\u1ea1i v\u00e0 c\u1eaft t\u1ec9a nh\u1eefng c\u00e2y x\u1ea5u, c\u00e2y y\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e2y m\u1ecdc \u0111\u1ec1u \u0111\u1eb7n v\u00e0 ph\u00e1t tri\u1ec3n t\u1ed1t nh\u1ea5t.<\/p>\n

    4. M\u1ed9t s\u1ed1 lo\u1ea1i s\u00e2u b\u1ec7nh tr\u00ean c\u00e2y v\u00e0 c\u00e1ch ph\u00f2ng tr\u1eeb<\/strong><\/p>\n

    4.1 S\u00e2u r\u00f3m<\/strong><\/p>\n

    \u2013 \u0110\u1eb7c \u0111i\u1ec3m chung c\u1ee7a c\u00e2y l\u00e0 th\u01b0\u1eddng c\u00f3 r\u1ea5t nhi\u1ec1u s\u00e2u r\u00f3m hay b\u1ecd n\u1eb9t. Ch\u00fang th\u01b0\u1eddng sinh s\u00f4i v\u00e0 ph\u00e1t tri\u1ec3n m\u1ea1nh v\u00e0o m\u00e0u h\u00e8. Lo\u1ea1i c\u00f4n tr\u00f9ng n\u00e0y c\u00f3 nhi\u1ec1u c\u00e1c l\u00f4ng nh\u1ecf tr\u00ean c\u01a1 th\u1ec3 ch\u1ee9a ch\u1ea5t \u0111\u1ed9c.<\/p>\n

    \u2013 C\u00e1ch ph\u00f2ng lo\u1ea1i s\u00e2u n\u00e0y b\u1ea1n c\u1ea7n c\u1eaft t\u1ec9a v\u00e0 gi\u1eef v\u1ec7 sinh cho c\u00e2y. N\u1ebfu c\u00e2y \u0111\u00e3 c\u00f3 s\u00e2u th\u00ec b\u1ea1n c\u00f3 th\u1ec3 b\u1eaft th\u1ee7 c\u00f4ng b\u1eb1ng tay, nh\u01b0ng h\u00e3y nh\u1edb d\u00f9ng g\u0103ng tay v\u00e0 \u0111\u1ed3 b\u1ea3o h\u1ed9. Tr\u1ee9ng s\u00e2u th\u01b0\u1eddng \u0111\u1ebb \u1edf m\u1eb7t d\u01b0\u1edbi c\u1ee7a l\u00e1, n\u00ean h\u00e3y ch\u00fa \u00fd \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c c\u00e0nh l\u00e1 s\u00e2u \u0111\u1ec3 tr\u1ee9ng l\u00ean nh\u00e9.<\/p>\n

    \u2013 Ngo\u00e0i ra b\u1ea1n c\u00f3 th\u1ec3 phun c\u00e1c lo\u1ea1i thu\u1ed1c tr\u1eeb s\u00e2u b\u1eb1ng c\u1ea3 ph\u01b0\u01a1ng ph\u00e1p h\u1eefu c\u01a1 v\u00e0 h\u00f3a h\u1ecdc. Bi\u1ec7n ph\u00e1p thu\u1ed1c h\u1eefu c\u01a1, b\u1ea1n d\u00f9ng c\u00e1c lo\u1ea1i g\u1eebng, t\u1ecfi, \u1edbt xay nhuy\u1ec5n v\u00e0 ng\u00e2m n\u01b0\u1edbc ho\u1eb7c r\u01b0\u1ee3u r\u1ed3i phun l\u00ean c\u00e2y. C\u00f2n thu\u1ed1c h\u00f3a h\u1ecdc b\u1ea1n c\u00f3 th\u1ec3 mua lo\u1ea1i thu\u1ed1c Map Permethrin 50EC v\u00e0 x\u1ecbt.<\/p>\n

    4.2 B\u1ec7nh th\u1ed1i r\u1ec5 l\u00e0m c\u00e2y nhi\u1ec5m n\u1ea5m<\/strong><\/p>\n

    \u2013 Khi c\u00e2y b\u1ecb nhi\u1ec5m n\u1ea5m do th\u1ed1i r\u1ec5 s\u1ebd c\u00f3 bi\u1ec3u hi\u1ec7n l\u00e0 l\u00e1 b\u1ecb nhi\u1ec1u \u0111\u1ed1m n\u00e2u, sau \u0111\u00f3 r\u1ee5ng d\u1ea7n v\u00e0 r\u1ec5 b\u1ecb m\u1ee5c th\u1ed1i. Nguy\u00ean nh\u00e2n l\u00e0 c\u00e2y b\u1ecb tr\u0169ng r\u1ec5 do \u0111\u01b0\u1ee3c t\u01b0\u1edbi qu\u00e1 nhi\u1ec1u v\u00e0 \u0111\u1ea5t kh\u00f4ng tho\u00e1t n\u01b0\u1edbc t\u1ed1t.<\/p>\n

    \u2013 \u0110\u1ec3 ph\u00f2ng tr\u1eeb b\u1ec7nh th\u1ed1i r\u1ec5 tr\u00ean c\u00e2y, b\u1ea1n c\u1ea7n th\u01b0\u1eddng xuy\u00ean quan s\u00e1t v\u00e0 ki\u1ec3m tra c\u00e2y. N\u1ebfu c\u00f3 d\u1ea5u hi\u1ec7u c\u1ee7a b\u1ec7nh n\u00e0y c\u1ea7n lo\u1ea1i b\u1ecf c\u00e1c l\u00e1 b\u1ecb n\u1ea5m v\u00e0 r\u1ec5 b\u1ecb th\u1ed1i ngay. B\u1ea1n c\u0169ng c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 \u1ea9m cho c\u00e2y v\u00e0 tr\u1ed3ng l\u1ea1i v\u00e0o lo\u1ea1i \u0111\u1ea5t t\u01a1i x\u1ed1p, tho\u00e1t n\u01b0\u1edbc t\u1ed1t h\u01a1n. Sau \u0111\u00f3 c\u00f3 th\u1ec3 b\u00f3n v\u00e0 t\u01b0\u1edbi cho c\u00e2y c\u00e1c lo\u1ea1i thu\u1ed1c k\u00edch th\u00edch ra r\u1ec5, thu\u1ed1c sinh tr\u01b0\u1edfng \u0111\u1ec3 c\u00e2y kh\u1ecfe m\u1ea1nh h\u01a1n.<\/p>\n

    4.3 B\u1ecb nhi\u1ec5m khu\u1ea9n<\/strong><\/p>\n

    \u2013 Khi c\u00e2y b\u1ecb nhi\u1ec5m khu\u1ea9n th\u00ec l\u00e1 c\u00e2y s\u1ebd c\u00f3 c\u00e1c \u0111\u1ed1m n\u00e2u v\u00e0 chuy\u1ec3n sang m\u00e0u v\u00e0ng. N\u00f3 s\u1ebd l\u00e0m cho c\u00e2y b\u1ecb r\u1ee5ng l\u00e1 v\u00e0 lan r\u1ed9ng r\u1ea5t nhanh, l\u00e1 non th\u01b0\u1eddng l\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng b\u1ecb vi khu\u1ea9n t\u1ea5n c\u00f4ng.<\/p>\n

    \u2013 T\u00ecnh tr\u1ea1ng n\u00e0y r\u1ea5t kh\u00f3 \u0111\u1ec3 nh\u1eadn bi\u1ebft, v\u1eady n\u00ean b\u1ea1n ph\u1ea3i c\u1ef1c k\u1ef3 ch\u00fa \u00fd \u0111\u1ebfn c\u00e2y. H\u00e3y ch\u00fa \u00fd cung c\u1ea5p cho c\u00e2y \u0111\u1ee7 \u00e1nh s\u00e1ng v\u00e0 v\u1ec7 sinh c\u00e2y th\u1eadt c\u1ea9n th\u1eadn \u0111\u1ec3 ph\u00f2ng b\u1ec7nh. Khi c\u00e2y g\u1eb7p lo\u1ea1i b\u1ec7nh n\u00e0y c\u1ea7n lo\u1ea1i b\u1ecf ngay c\u00e1c l\u00e1 b\u1ecb b\u1ec7nh. B\u00ean c\u1ea1nh \u0111\u00f3 c\u00f3 th\u1ec3 d\u00f9ng m\u1ed9t s\u1ed1 lo\u1ea1i thu\u1ed1c b\u1ea3o v\u1ec7 th\u1ef1c v\u1eadt nh\u01b0 STARNER 20WP,\u2026<\/p>\n

    4.4 C\u00f4n tr\u00f9ng t\u1ea5n c\u00f4ng<\/strong><\/p>\n

    \u2013 C\u00e2y tr\u1ed3ng ngo\u00e0i tr\u1eddi d\u1ec5 b\u1ecb c\u00f4n tr\u00f9ng t\u1ea5n c\u00f4ng v\u00e0 ph\u00e1 ho\u1ea1i. C\u00e1c lo\u1ea1i c\u00f4n tr\u00f9ng nh\u01b0 nh\u1ec7n \u0111\u1ecf, b\u1ecd r\u1ea7y, s\u00e2u r\u00f3m,\u2026 th\u01b0\u1eddng d\u1ec5 g\u1eb7p tr\u00ean c\u00e2y. Ch\u00fang th\u01b0\u1eddng \u0111\u1ebb tr\u1ee9ng r\u1ea5t nh\u1ecf tr\u00ean l\u00e1 v\u00e0 kh\u00f3 ph\u00e1t hi\u1ec7n.<\/p>\n

    \u2013 \u0110\u1ec3 kh\u1eafc ph\u1ee5c c\u00f3 th\u1ec3 d\u00f9ng d\u1ea7u neem pha theo h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 phun l\u00ean c\u00e2y. Nh\u1edb phun \u1edf d\u01b0\u1edbi m\u1eb7t l\u00e1 v\u00e0 c\u00e1c \u0111\u1ed1t th\u00e2n c\u00e2y gi\u1eefa c\u00e1c l\u00e1.<\/p>\n

    4.5 S\u00e2u, r\u1ea7y<\/strong><\/p>\n

    \u2013 S\u00e2u r\u1ea7y s\u1ebd l\u00e0m l\u00e1 c\u1ee7a c\u00e2y b\u1ecb cu\u1ed1n l\u1ea1i. Ph\u00f2ng tr\u1eeb b\u1eb1ng c\u00e1ch lo\u1ea1i b\u1ecf c\u00e1c l\u00e1 b\u1ecb s\u00e2u h\u1ea1i, qu\u00e9t v\u00f4i v\u00e0o g\u1ed1c c\u00e2y. B\u00ean c\u1ea1nh \u0111\u00f3 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i thu\u1ed1c tr\u1eeb s\u00e2u nh\u01b0 Classico 480 EC; Regent 5SC, Polytrin-P 440EC; Sherpa 25EC; Pyrinex 20EC, Cyperan 25EC hay d\u1ea7u neem \u0111\u1ec3 phun cho c\u00e2y.<\/p>\n

    4.6 B\u1ecd n\u00e2u \u0103n l\u00e1<\/strong><\/p>\n

    \u2013 B\u1ecd n\u00e2u \u0103n l\u00e1 s\u1ebd g\u1eb7m nh\u1ea5m l\u00e1 c\u00e2y v\u00e0 \u0111\u1ec3 l\u1ea1i c\u00e1c v\u1ebft c\u1eafn tr\u00ean l\u00e1. N\u00f3 th\u01b0\u1eddng g\u00e2y h\u1ea1i tr\u00ean l\u00e1 non \u1edf tr\u00ean ng\u1ecdn n\u00ean kh\u00e1 kh\u00f3 ph\u00e1t hi\u1ec7n. C\u1ea7n \u0111\u1eb7c bi\u1ec7t ch\u00fa \u00fd \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u1edbm d\u1ea5u hi\u1ec7u lo\u1ea1i s\u00e2u b\u1ec7nh n\u00e0y.<\/p>\n

    \u2013 Khi c\u00e2y nhi\u1ec5m b\u1ec7nh, c\u1ea7n lo\u1ea1i b\u1ecf l\u00e1 b\u1ecb c\u1eafn v\u00e0 s\u00e2u b\u1ec7nh ra kh\u1ecfi c\u00e2y. C\u00f3 th\u1ec3 b\u1eaft s\u00e2u b\u1eb1ng tay th\u1ee7 c\u00f4ng nh\u01b0ng \u0111\u1ec3 hi\u1ec7u qu\u1ea3 nh\u1ea5t c\u1ea7n s\u1eed d\u1ee5ng thu\u1ed1c phun. C\u00f3 th\u1ec3 d\u00f9ng lo\u1ea1i Javidan \u0111\u1ec3 phun cho c\u00e2y.<\/p>\n

    4.7 S\u00e2u \u0111\u1ee5c th\u00e2n<\/strong><\/p>\n

    \u2013 S\u00e2u \u0111\u1ee5c th\u00e2n ph\u00e1 ho\u1ea1i g\u1ed1c, c\u00e0nh, th\u00e2n c\u00e2y khi\u1ebfn c\u00e2y ch\u1ebft v\u00e0 kh\u00f4ng th\u1ec3 sinh tr\u01b0\u1edfng. N\u1ebfu s\u00e2u \u0111\u1ee5c th\u00e2n th\u00e0nh x\u00e9n t\u00f3c tr\u01b0\u1edfng th\u00e0nh r\u1ed3i th\u00ec c\u1ea7n b\u1eaft v\u00e0 ti\u00eau di\u1ec7t ngay. C\u00f2n khi l\u00e0 s\u00e2u non \u0111\u1ee5c s\u00e2u v\u00e0o th\u00e2n c\u00e2y th\u00ec c\u1ea7n c\u1eaft b\u1ecf c\u00e0nh h\u00e9o.<\/p>\n

    \u2013 Khi c\u00e2y b\u1ecb s\u00e2u \u0111\u1ee5c th\u00e2n n\u1eb7ng c\u1ea7n d\u00f9ng c\u00e1c thu\u1ed1c c\u00f3 ch\u1ea5t Rotenone,\u00a0 ho\u1eb7c thu\u1ed1c Abamectin, Cypermethrin, Sherpa v\u1edbi n\u1ed3ng \u0111\u1ed9 cao. B\u01a1m thu\u1ed1c v\u00e0o c\u00e1c v\u1ebft s\u00e2u \u0111\u1ee5c b\u00ean trong c\u00e2y v\u00e0 d\u00f9ng d\u00e2y th\u00e9p lu\u1ed3n v\u00e0o \u0111\u1ec3 tr\u1eeb s\u00e2u. Ph\u00f2ng tr\u1eeb b\u1eb1ng c\u00e1ch v\u1ec7 sinh v\u01b0\u1eddn s\u1ea1ch s\u1ebd v\u00e0 qu\u00e9t v\u00f4i \u1edf g\u1ed1c c\u00e2y \u0111\u1ecbnh k\u1ef3.<\/p>\n

      \n
    1. Quy tr\u00ecnh chung tr\u1ed3ng c\u00e2y b\u00f3ng m\u00e1t \u0111\u00f4 th\u1ecb \u0111\u01b0\u1eddng ph\u1ed1 :<\/strong><\/li>\n<\/ol>\n

      \u2013 B\u01b0\u1edbc 1. \u0110\u1ecbnh v\u1ecb v\u1ecb tr\u00ed tr\u1ed3ng c\u00e2y:<\/strong><\/em><\/p>\n

      * \u0110\u1ed1i v\u1edbi c\u00e1c tuy\u1ebfn ph\u1ed1\u00a0tr\u1ed3ng m\u1edbi tr\u00ean to\u00e0n tuy\u1ebfn:<\/em><\/p>\n

      \u2013 X\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed c\u00e2y tr\u1ed3ng \u0111\u1ea7u h\u00e0ng v\u00e0 c\u00e2y tr\u1ed3ng cu\u1ed1i h\u00e0ng theo thi\u1ebft k\u1ebf, d\u00f9ng d\u00e2y \u0111\u1ec3 c\u0103ng th\u1eb3ng, s\u1eed d\u1ee5ng th\u01b0\u1edbc \u0111o chia kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c c\u00e2y \u0111\u1ea3m b\u1ea3o \u0111\u1ec1u nhau (t\u1eeb 3m \u2013 8m).<\/p>\n

      \u2013 \u0110\u1ecbnh v\u1ecb x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed s\u01a1 \u0111\u1ed3 tr\u1ed3ng c\u00e2y c\u1ee7a t\u1eebng tuy\u1ebfn (\u0111\u00e1nh d\u1ea5u s\u01a1n ho\u1eb7c \u0111\u00f3ng c\u1ecdc) \u0111\u1ea3m b\u1ea3o c\u00e2y tr\u1ed3ng \u0111\u01b0\u1ee3c th\u1eb3ng h\u00e0ng, kho\u1ea3ng c\u00e1ch \u0111\u1ec1u, \u0111\u1ed1i x\u1ee9ng nhau (n\u1ebfu tr\u1ed3ng th\u00e0nh 2 h\u00e0ng tr\u1edf l\u00ean) t\u1ea1o c\u1ea3nh quan \u0111\u1ec1u, \u0111\u1eb9p m\u1eaft.<\/p>\n

      \u2013 Tr\u1ed3ng theo thi\u1ebft k\u1ebf v\u00e0 h\u1ed1 tr\u1ed3ng c\u1ee7a d\u1ef1 \u00e1n (\u0111\u1ed1i v\u1edbi d\u1ef1 \u00e1n \u0111\u00e3 thi c\u00f4ng c\u00f3 s\u1eb5n h\u1ed1).<\/p>\n

      * \u0110\u1ed1i v\u1edbi vi\u1ec7c tr\u1ed3ng b\u1ed5 sung c\u00e2y v\u00e0o h\u1ed1 tr\u1ed1ng, v\u1ecb tr\u00ed tr\u1ed1ng:<\/em><\/p>\n

      \u2013 Th\u1ef1c hi\u1ec7n tr\u1ed3ng th\u1eb3ng h\u00e0ng, kho\u1ea3ng c\u00e1ch t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u1ed3ng \u0111\u1ec1u nhau v\u1edbi c\u00e2y li\u1ec1n k\u1ec1 tr\u00ean tuy\u1ebfn ph\u1ed1 v\u00e0 theo th\u1ef1c t\u1ebf m\u1eb7t b\u1eb1ng.<\/p>\n

      B\u01b0\u1edbc 2:<\/strong><\/em>\u00a0Chu\u1ea9n b\u1ecb m\u1eb7t b\u1eb1ng, v\u1eadt li\u1ec7u tr\u1ed3ng c\u00e2y g\u1ed3m \u0111\u1ea5t m\u00e0u, gi\u00e1 th\u1ec3 x\u01a1 d\u1eeba, m\u00f9n h\u1eefu c\u01a1 (ph\u00e2n b\u00f2), bao t\u1ea3i, ph\u00e2n h\u1eefu c\u01a1\u2026v\u00e0 c\u00e1c d\u1ee5ng c\u1ee5 lao \u0111\u1ed9ng, m\u00e1y m\u00f3c thi c\u00f4ng tr\u01b0\u1edbc khi tr\u1ed3ng c\u00e2y.<\/p>\n

      B\u01b0\u1edbc\u00a03. \u0110\u00e0o h\u1ed1\u00a0tr\u1ed3ng c\u00e2y:<\/strong><\/em><\/p>\n

      \u2013 Ti\u1ebfn h\u00e0nh: T\u1eeb v\u1ecb tr\u00ed tim h\u1ed1, ng\u01b0\u1eddi c\u00f4ng nh\u00e2n \u0111\u00e0o h\u1ed1 h\u00ecnh vu\u00f4ng c\u00f3 c\u1ea1nh t\u1ed1i thi\u1ec3u L(m) = K\u00edch th\u01b0\u1edbc b\u1ea7u c\u00e2y + 0,2m. \u0110\u00e0o h\u1ed1 \u0111\u1ebfn chi\u1ec1u s\u00e2u h\u01a1n k\u00edch th\u01b0\u1edbc chi\u1ec1u cao b\u1ea7u c\u00e2y t\u1ed1i thi\u1ec3u 0,3m \u0111\u1ed1i v\u1edbi m\u1eb7t b\u1eb1ng tr\u1ed3ng c\u00e2y c\u00f3 \u0111\u1ea5t t\u1ef1 nhi\u00ean ph\u00f9 h\u1ee3p cho c\u00e2y tr\u1ed3ng.<\/p>\n

      \u2013 Trong tr\u01b0\u1eddng h\u1ee3p \u0111\u1ea5t kh\u00f4ng \u0111\u1ea3m b\u1ea3o (\u0111\u1ea5t b\u00f9n s\u00e9t, c\u00e1t, tr\u1ea1c v\u1eefa, b\u1ea1c m\u00e0u\u2026), v\u1eadn chuy\u1ec3n \u0111\u1ea5t ph\u1ebf th\u1ea3i v\u00e0 \u0111\u00e0o r\u1ed9ng h\u1ed1 \u0111\u1ec3 b\u1ed5 sung \u0111\u1ea5t m\u00e0u, m\u00f9n h\u1eefu c\u01a1, gi\u00e1 th\u1ec3 x\u01a1 d\u1eeba, ph\u00e2n h\u1eefu c\u01a1 (ph\u00e2n b\u00f2)\u2026 ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o cho s\u1ef1 sinh tr\u01b0\u1edfng, ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e2y.<\/p>\n

      B\u01b0\u1edbc 4.\u00a0C\u00f4ng t\u00e1c v\u1eadn chuy\u1ec3n:<\/strong><\/em><\/p>\n

      \u2013 S\u1eed d\u1ee5ng \u00f4 t\u00f4 ho\u1eb7c xe c\u1ea9u v\u1eadn chuy\u1ec3n c\u00e2y \u0111\u1ebfn n\u01a1i tr\u1ed3ng. Qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n ph\u1ea3i \u0111\u1ea3m b\u1ea3o b\u1ea7u c\u00e2y kh\u00f4ng b\u1ecb n\u1ee9t, v\u1ee1. D\u00f9ng bao t\u1ea3i b\u00f3 quanh th\u00e2n c\u00e2y \u0111\u1ec3 b\u1ea3o v\u1ec7 th\u00e2n c\u00e2y trong qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n v\u00e0 gi\u1ea3m tho\u00e1t h\u01a1i n\u01b0\u1edbc, (n\u1ebfu c\u1ea7n).<\/p>\n

      B\u01b0\u1edbc 5. B\u00f3n ph\u00e2n v\u00e0 \u0111\u1ea5t tr\u1ed3ng c\u00e2y:<\/strong><\/em><\/p>\n

      \u2013 Cho \u0111\u1ea5t m\u00e0u \u0111\u01b0\u1ee3c tr\u1ed9n l\u1eabn m\u00f9n, gi\u00e1 th\u1ec3 x\u01a1 d\u1eeba, ph\u00e2n h\u1eefu c\u01a1 (ph\u00e2n b\u00f2)\u2026xu\u1ed1ng h\u1ed1 \u0111\u1ec3 \u0111\u1ed9 cao ph\u00f9 h\u1ee3p. Sau khi c\u1ea9u c\u00e2y tr\u1ed3ng \u0111\u01b0a xu\u1ed1ng h\u1ed1 tr\u1ed3ng ph\u1ea3i th\u00e1o b\u1ecf bao b\u1ea7u c\u00e2y (\u0111\u1ed1i v\u1edbi v\u1ecf b\u1ea7u kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng t\u1ef1 ph\u00e2n h\u1ee7y), c\u1eaft h\u1ebft d\u00e2y bu\u1ed9c, \u0111\u1eb7t b\u1ea7u c\u00e2y v\u00e0o ch\u00ednh gi\u1eefa h\u1ed1 \u0111\u1ea3m b\u1ea3o c\u00e2y tr\u1ed3ng th\u1eb3ng \u0111\u1ee9ng (ki\u1ec3m tra theo 2 h\u01b0\u1edbng: song song v\u00e0 vu\u00f4ng g\u00f3c v\u1edbi v\u1ec9a h\u00e8) \u0111\u1eb7t c\u00e2y sao cho c\u1ed5 r\u1ec5 th\u1ea5p h\u01a1n cao \u0111\u1ed9 m\u1eb7t h\u00e8.<\/p>\n

      \u2013 \u0110i\u1ec1u ch\u1ec9nh cho c\u00e2y th\u1eb3ng \u0111\u1ee9ng, khi \u0111\u00e3 \u0111\u1ea1t y\u00eau c\u1ea7u cho \u0111\u1ea5t m\u00e0u tr\u1ed9n gi\u00e1 th\u1ec3 x\u01a1 d\u1eeba\u00a0 + ph\u00e2n h\u1eefu c\u01a1 (ph\u00e2n b\u00f2) v\u00e0o h\u1ed1, l\u1ea5p \u0111\u1ebfn qu\u00e1 n\u1eeda h\u1ed1 r\u1ed3i n\u00e8n ch\u1eb7t xung quanh b\u1ea7u, t\u01b0\u1edbi nh\u1eb9 n\u01b0\u1edbc (\u0111\u00e3 \u0111\u01b0\u1ee3c pha ch\u1ea5t k\u00edch th\u00edch ra r\u1ec5) \u0111\u1ec1u quanh b\u1ea7u c\u00e2y.<\/p>\n

      \u2013 Ti\u1ebfp t\u1ee5c l\u1ea5p \u0111\u1ea5t xung quanh b\u1ea7u c\u00e2y v\u00e0 l\u00e8n ch\u1eb7t \u0111\u1ebfn mi\u1ec7ng h\u1ed1. Ti\u1ebfn h\u00e0nh t\u01b0\u1edbi \u0111\u1eabm n\u01b0\u1edbc v\u00e0 l\u00e0m v\u1eebng xung quanh g\u1ed1c \u0111\u1ec3 gi\u1eef n\u01b0\u1edbc kh\u00f4ng tr\u00e0n ra ngo\u00e0i h\u1ed1 tr\u1ed3ng.<\/p>\n

      B\u01b0\u1edbc 6. C\u1ecdc ch\u1ed1ng cho c\u00e2y:<\/strong><\/em><\/p>\n

      \u2013 D\u00f9ng c\u1ecdc g\u1ed7 ch\u1ed1ng gi\u1eef c\u00e2y tr\u1ed3ng lu\u00f4n \u0111\u01b0\u1ee3c th\u1eb3ng \u0111\u1ee9ng kh\u00f4ng b\u1ecb nghi\u00eang, \u0111\u1ed5 do gi\u00f3 v\u00e0 \u1ed5n \u0111\u1ecbnh b\u1ed9 \u0111\u01b0\u1ee3c r\u1ec5.<\/p>\n

      \u2013 Chi\u1ec1u cao c\u1ee7a c\u1ecdc ch\u1ed1ng sau khi \u0111\u00e3 l\u1eafp gh\u00e9p (tr\u00ean m\u1eb7t \u0111\u1ea5t) t\u1ed1i thi\u1ec3u b\u1eb1ng 1\/3 chi\u1ec1u cao c\u00e2y tr\u1edf l\u00ean.<\/p>\n

      \u2013 V\u1ecb tr\u00ed ch\u1ed1ng c\u1ecdc v\u00e0o th\u00e2n c\u00e2y c\u00e1ch g\u1ed1c kho\u1ea3ng 1\/3 chi\u1ec1u cao c\u00e2y v\u1edbi \u0111\u1ed9 nghi\u00eang g\u00f3c ch\u1ed1ng t\u1ed1i \u01b0u t\u1eeb 30\u00b0- 40\u00b0. Ch\u00e2n c\u1ecdc \u0111\u00f3ng s\u00e2u xu\u1ed1ng \u0111\u1ea5t t\u1ed1i thi\u1ec3u 5cm \u0111\u1ec3 c\u00f3 \u0111i\u1ec3m ch\u1ed1ng.<\/p>\n

      \u2013 Trong tr\u01b0\u1eddng h\u1ee3p kh\u00f4ng th\u1ec3 \u0111\u1eb7t ch\u00e2n c\u1ecdc g\u1ecdn trong h\u1ed1 tr\u1ed3ng c\u00e2y do g\u00f3c ch\u1ed1ng h\u1eb9p kh\u00f4ng \u0111\u1ea3m b\u1ea3o vi\u1ec7c ch\u1ed1ng gi\u1eef c\u00e2y c\u00f3 th\u1ec3 \u0111\u1eb7t v\u1ecb tr\u00ed ch\u00e2n c\u1ecdc n\u1eb1m tr\u00ean v\u1ec9a h\u00e8 s\u00e2u xu\u1ed1ng \u0111\u1ea5t t\u1ed1i thi\u1ec3u 5cm.<\/p>\n

      \u2013 Th\u1eddi gian s\u1eed d\u1ee5ng c\u1ecdc ch\u1ed1ng cho c\u00e2y:<\/p>\n

      + \u0110\u1ed1i v\u1edbi c\u00e2y \u0111\u01b0\u1eddng k\u00ednh t\u1eeb <15 cm: T\u1ed1i thi\u1ec3u 2 n\u0103m.<\/p>\n

      + \u0110\u1ed1i v\u1edbi c\u00e2y c\u00f3 \u0111\u01b0\u1eddng k\u00ednh t\u1eeb 15cm tr\u1edf l\u00ean: T\u1ed1i thi\u1ec3u 3 n\u0103m. C\u00f3 th\u1ec3 d\u00f9ng c\u1ecdc ch\u1ed1ng c\u00f3 tu\u1ed5i th\u1ecd cao (theo thi\u1ebft k\u1ebf \u0111\u01b0\u1ee3c duy\u1ec7t) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n l\u00e2u d\u00e0i cho c\u00e2y. Ph\u1ea7n c\u1ecdc ti\u1ebfp x\u00fac v\u1edbi th\u00e2n c\u00e2y \u0111\u01b0\u1ee3c \u0111\u1ec7m l\u00f3t \u0111\u1ec3 tr\u00e1nh x\u00e2y, x\u01b0\u1edbc ho\u1eb7c tr\u00f3c v\u1ecf c\u00e2y. S\u1eed d\u1ee5ng 1 ho\u1eb7c 2 t\u1ea7ng g\u00f4ng \u0111\u1ec3 li\u00ean k\u1ebft 4 c\u1ecdc ch\u1ed1ng; h\u00e0n ch\u1ebft ho\u1eb7c k\u1ebft h\u1ee3p \u0111\u1ec7m cao su c\u00f3 li\u00ean k\u1ebft bul\u00f4ng d\u1ec5 n\u1edbi l\u1ecfng khi c\u00e2y ph\u00e1t tri\u1ec3n.<\/p>\n

      \u2013 Th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra b\u1ea3o d\u01b0\u1ee1ng \u0111\u1ed1i v\u1edbi c\u1ecdc s\u1eaft; thay th\u1ebf c\u1ecdc g\u1ed7 b\u1ecb g\u1eaby h\u1ecfng.<\/p>\n

      B\u01b0\u1edbc 7:<\/em><\/strong>\u00a0Ch\u0103m s\u00f3c c\u00e2y sau khi tr\u1ed3ng:<\/p>\n

      \u2013 K\u1ef9 thu\u1eadt ch\u0103m s\u00f3c c\u00e2y sau khi tr\u1ed3ng: Sau khi tr\u1ed3ng, \u0111\u01a1n v\u1ecb thi c\u00f4ng tr\u1ed3ng c\u00e2y c\u00f3 tr\u00e1ch nhi\u1ec7m ch\u0103m s\u00f3c, b\u1ea3o d\u01b0\u1ee1ng c\u00e2y t\u1ed1i thi\u1ec3u 03 th\u00e1ng tr\u01b0\u1edbc khi b\u00e0n giao cho \u0111\u01a1n v\u1ecb qu\u1ea3n l\u00fd, duy tr\u00ec c\u00e2y trong 02 n\u0103m \u0111\u1ea7u theo quy \u0111\u1ecbnh.<\/p>\n

      \u2013 T\u01b0\u1edbi n\u01b0\u1edbc: T\u01b0\u1edbi \u0111\u1eabm \u0111\u1ea5t xung quanh g\u1ed1c c\u00e2y, th\u1eddi gian t\u01b0\u1edbi v\u00e0o s\u00e1ng s\u1edbm ho\u1eb7c chi\u1ec1u t\u1ed1i (kh\u00f4ng t\u01b0\u1edbi khi tr\u1eddi n\u1eafng g\u1eaft). T\u00f9y theo th\u1eddi ti\u1ebft v\u00e0 \u0111\u1ed9 \u1ea9m c\u1ee7a \u0111\u1ea5t \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh ch\u1ebf \u0111\u1ed9 t\u01b0\u1edbi, l\u01b0\u1ee3ng n\u01b0\u1edbc t\u01b0\u1edbi. Vi\u1ec7c t\u01b0\u1edbi n\u01b0\u1edbc kh\u00f4ng \u0111\u01b0\u1ee3c l\u00e0m x\u00f3i m\u00f2n \u0111\u1ea5t xung quanh g\u1ed1c nh\u01b0ng v\u1eabn t\u1ea1o \u0111\u1ee7 \u0111\u1ed9 \u1ea9m cho c\u00e2y.<\/p>\n

      + Th\u1eddi ch\u0103m s\u00f3c: 90 ng\u00e0y.<\/p>\n

      + S\u1ed1 l\u1ea7n t\u01b0\u1edbi:<\/p>\n

      * 15 ng\u00e0y \u0111\u1ea7u t\u01b0\u1edbi li\u00ean t\u1ee5c: 1 ng\u00e0y\/1 l\u1ea7n.<\/p>\n

      * 30 ng\u00e0y sau t\u01b0\u1edbi 2 ng\u00e0y\/l\u1ea7n.<\/p>\n

      * C\u00e1c ng\u00e0y ti\u1ebfp theo (45 ng\u00e0y) t\u01b0\u1edbi trung b\u00ecnh: 3 ng\u00e0y \/l\u1ea7n.<\/p>\n

      + L\u01b0\u1ee3ng n\u01b0\u1edbc t\u01b0\u1edbi: 17 l\u00edt\/ l\u1ea7n t\u01b0\u1edbi.<\/p>\n

      \u2013 Theo d\u00f5i t\u00ecnh h\u00ecnh ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e2y \u0111\u1ec3 x\u1eed l\u00fd, n\u1ebfu ph\u00e1t hi\u1ec7n s\u00e2u b\u1ec7nh ph\u1ea3i phun thu\u1ed1c ngay, l\u00e0m c\u1ecf d\u1ea1i xung quanh g\u1ed1c c\u00e2y.<\/p>\n

      \u2013 C\u1eaft t\u1ec9a c\u00e1c ch\u1ed3i, c\u00e0nh m\u1ecdc l\u00e0m l\u1ec7ch t\u00e1n \u0111\u1ec3 \u0111\u1ecbnh h\u01b0\u1edbng ph\u00e1t tri\u1ec3n t\u00e1n c\u00e2y c\u00e2n \u0111\u1ed1i.<\/p>\n

      \u2013 Th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra c\u1ecdc ch\u1ed1ng v\u00e0 b\u1ed5 sung k\u1ecbp th\u1eddi cho c\u00e2y m\u1edbi tr\u1ed3ng, n\u1ebfu c\u00e2y nghi\u00eang ph\u1ea3i d\u1ef1ng l\u1ea1i ngay th\u1eb3ng.<\/p>\n","protected":false},"excerpt":{"rendered":"

      \u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a c\u00e2y k\u00e8n h\u1ed3ng : \u2013 L\u00e0 lo\u1ea1i c\u00e2y th\u00e2n g\u1ed7 l\u00e2u n\u0103m nh\u01b0ng k\u00edch th\u01b0\u1edbc c\u00e2y kh\u00f4ng qu\u00e1 l\u1edbn. 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