H\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt tr\u1ed3ng c\u00e2y H\u00f4ng<\/b><\/p>\n
(Paulownia fortunei<\/i>)<\/b><\/p>\n
L\u1eddi n\u00f3i \u0111\u1ea7u<\/b><\/p>\n
C\u00e2y H\u00f4ng t\u00ean khoa h\u1ecdc Paulownia fortunei <\/i>l\u00e0 m\u1ed9t trong 9 lo\u00e0i c\u00e2y g\u1ed7 thu\u1ed9c chi Paulownia <\/i>h\u1ecd hoa M\u1ed7 ch\u00f3 Scrophulariaceae. N\u00f3 thu\u1ed9c lo\u1ea1i c\u00e2y g\u1ed7 l\u1edbn l\u00e1 r\u1ed9ng c\u00f3 ph\u00e2n b\u1ed1 t\u1ef1 nhi\u00ean \u1edf Trung Qu\u1ed1c, L\u00e0o v\u00e0 m\u1ed9t t\u1ec9nh \u1edf Vi\u1ec7t Nam. H\u00f4ng sinh tr\u01b0\u1edfng nhanh, t\u00e1n l\u00e1 th\u01b0a, l\u00e1 d\u1ec5 ph\u00e2n gi\u1ea3i c\u00f3 t\u00e1c d\u1ee5ng c\u1ea3i t\u1ea1o \u0111\u1ea5t t\u1ed1t, r\u1ec5 ph\u00e2n b\u1ed1 s\u00e2u 30-40cm d\u01b0\u1edbi m\u1eb7t \u0111\u1ea5t n\u00ean \u00edt c\u1ea1nh tranh v\u1edbi c\u00e1c lo\u00e0i c\u00e2y ng\u1eafn ng\u00e0y, \u00edt cong v\u00eanh l\u00e0 nguy\u00ean li\u1ec7u t\u1ed1t trong c\u00f4ng nghi\u1ec7p g\u1ed7 v\u00e1n nh\u00e2n t\u1ea1o v\u00e0 c\u00e1c \u0111\u1ed3 d\u00f9ng th\u00f4ng th\u01b0\u1eddng trong gia \u0111\u00ecnh.<\/p>\n
Do c\u00f3 nhi\u1ec1u \u0111\u1eb7c t\u00ednh \u01b0u vi\u1ec7t n\u00ean H\u00f4ng \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u00fa \u00fd nghi\u00ean c\u1ee9u, ph\u00e1t tri\u1ec3n \u1edf nhi\u1ec1u n\u01b0\u1edbc. \u1edf Trung Qu\u1ed1c 1,8 ha c\u00e1c lo\u00e0i thu\u1ed9c chi Paulownia <\/i>\u0111\u00e3 \u0111\u01b0\u1ee3c g\u00e2y tr\u1ed3ng. M\u1ed9t s\u1ed1 n\u01b0\u1edbc kh\u00e1c nh\u01b0 M\u1ef9, \u00fac c\u0169ng ch\u00fa \u00fd nghi\u00ean c\u1ee9u ph\u00e1t tri\u1ec3n lo\u00e0i c\u00e2y n\u00e0y. \u1edf Vi\u1ec7t Nam H\u00f4ng m\u1edbi \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m g\u00e2y tr\u1ed3ng m\u1ea5y n\u0103m g\u1ea7n \u0111\u00e2y. C\u00e2y sinh tr\u01b0\u1edfng kh\u00e1 nhanh trong m\u1ea5y n\u0103m \u0111\u1ea7u v\u00e0 t\u1ecf ra c\u00f3 ti\u1ec1m n\u0103ng ph\u00e1t tri\u1ec3n r\u1ed9ng cho c\u00e1c m\u1ee5c \u0111\u00edch tr\u1ed3ng r\u1eebng nguy\u00ean li\u1ec7u, t\u1ea1o c\u1ea3nh quan m\u00f4i tr\u01b0\u1eddng. H\u00f4ng c\u0169ng l\u00e0 m\u1ed9t c\u00e2y s\u1ed1ng r\u1ea5t l\u00e2u n\u0103m n\u00ean c\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u1ed3ng r\u1eebng ph\u00f2ng h\u1ed9. Trong t\u1ef1 nhi\u00ean n\u00f3 th\u01b0\u1eddng ph\u00e2n b\u1ed1 xen v\u1edbi m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y ti\u00ean phong, n\u00f3 d\u1ec5 tr\u1ed3ng h\u1ed7n giao v\u1edbi m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y kh\u00e1c nh\u01b0: Tre, M\u1ee1, tr\u1ed3ng xen che b\u00f3ng cho c\u00e2y n\u00f4ng nghi\u1ec7p ho\u1eb7c c\u00e0 ph\u00ea, ch\u00e8,v.v…<\/p>\n
B\u1ea3n h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt n\u00e0y quy \u0111\u1ecbnh h\u1ec7 th\u1ed1ng bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt li\u00ean ho\u00e0n t\u1eeb ch\u1ecdn c\u00e2y m\u1eb9 l\u1ea5y gi\u1ed1ng, gieo t\u1ea1o c\u00e2y con, tr\u1ed3ng r\u1eebng ch\u0103m s\u00f3c b\u1ea3o v\u1ec7 cho \u0111\u1ebfn khi r\u1eebng tr\u1ed3ng kh\u00e9p t\u00e1n.<\/p>\n
<\/p>\n
Ch\u01b0\u01a1ng I<\/b><\/p>\n
\u0110i\u1ec1u ki\u1ec7n g\u00e2y tr\u1ed3ng<\/b><\/p>\n
1. \u0110i\u1ec1u ki\u1ec7n kh\u00ed h\u1eadu<\/b><\/p>\n
C\u00f3 th\u1ec3 tr\u1ed3ng H\u00f4ng \u1edf c\u00e1c khu v\u1ef1c c\u00f3 \u0111\u1ed9 c\u00e1\u00f4 v\u1edbi m\u1eb7t bi\u1ec3n t\u1eeb 300-1500m, c\u00f3 l\u01b0\u1ee3ng m\u01b0a b\u00ecnh qu\u00e2n 1.500-1.884mm, nh\u1eefng n\u01a1i c\u00f3 nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n n\u0103m 18-23,50<\/sup>C, nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n th\u00e1ng n\u00f3ng nh\u1ea5t 28-300<\/sup>C, nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n th\u00e1ng l\u1ea1nh nh\u1ea5t 9-130<\/sup>C v\u00e0 m\u00f9a kh\u00f4 k\u00e9o d\u00e0i 3-4 thn\u00e1g.<\/p>\n 2. \u0110\u1ea5t tr\u1ed3ng H\u00f4ng<\/b><\/p>\n * \u0110\u1ea5t feralit tr\u00ean c\u00e1c lo\u1ea1i \u0111\u00e1 m\u1eb9 granit, gnai, phi\u1ebfn th\u1ea1ch s\u00e9t, sa phi\u1ebfn th\u1ea1ch, phi\u1ebfn th\u1ea1ch mica,…. c\u00f2n t\u01b0\u01a1ng \u0111\u1ed1i t\u1ed1t, t\u1ef7 l\u1ec7 m\u00f9n t\u1ea7ng m\u1eb7t tr\u00ean 1%, th\u00e0nh ph\u1ea7n c\u01a1 gi\u1edbi nh\u1eb9 \u0111\u1ebfn trung b\u00ecnh, t\u1ea5ng \u0111\u1ea5t d\u00e0y tr\u00ean 50cm, t\u01a1i x\u1ed1p kh\u1ea3 n\u0103ng th\u1ea5m v\u00e0 tho\u00e1t n\u01b0\u1edbc t\u1ed1t.<\/p>\n * Kh\u00f4ng tr\u1ed3ng H\u00f4ng \u1edf n\u01a1i \u0111\u1ea5t ch\u1eb7t b\u00ed, c\u00f3 th\u1eddi gian \u00fang n\u01b0\u1edbc, \u0111\u1ea5t \u0111\u00e3 qu\u00e1 tho\u00e1i ho\u00e1 tr\u1ed1ng tr\u1ecdc, tr\u01a1 s\u1ecfi \u0111a,….<\/p>\n Ch\u01b0\u01a1ng II<\/b><\/p>\n Thu h\u00e1i ch\u1ebf bi\u1ebfn b\u1ea3o qu\u1ea3n gi\u1ed1ng<\/b><\/p>\n 1. Ch\u1ecdn c\u00e2y l\u1ea5y gi\u1ed1ng<\/b><\/p>\n Ch\u1ecdn c\u00e2y sinh tr\u01b0\u1edfng t\u1ed1t , kh\u00f4ng b\u1ecb s\u00e2u b\u1ec7nh, c\u00f3 t\u00e1n l\u00e1 ph\u00e1t tri\u1ec3n \u0111\u1ec1u \u0111\u1eb7n v\u00e0 c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u1edbn h\u01a1n 30cm \u0111\u1ec3 thu h\u00e1i gi\u1ed1ng. Tr\u01b0\u1edbc m\u00f9a thu ho\u1ea1ch 2-3 th\u00e1ng ti\u1ebfn h\u00e0nh kh\u1ea3o s\u00e1t l\u1ef1a ch\u1ecdn c\u00e2y s\u1ebd ti\u1ebfn h\u00e0nh thu gi\u1ed1ng. Tu\u1ef3 theo khu v\u1ef1c l\u1ea5y gi\u1ed1ng v\u1ee5 thu ho\u1ea1ch c\u00f3 th\u1ec3 x\u00ea x\u00edch trong ph\u1ea1m vi 1 th\u00e1ng t\u1eeb th\u00e1ng 12 \u0111\u1ebfn gi\u1eefa th\u00e1ng 1 n\u0103m au. Khi g\u1ea7n \u0111\u1ebfn ng\u00e0y thu ho\u1ea1ch c\u1ea7n theo d\u00f5i quan s\u00e1t th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 thu ho\u1ea1ch \u0111\u01b0\u1ee3c k\u1ecbp th\u1eddi.<\/p>\n Khi qu\u1ea3 t\u1eeb m\u00e0u xanh ch\u1edbm chuy\u1ec3n sang m\u00e0u n\u00e2u \u1edf \u0111\u1ea7u qu\u1ea3n l\u00e0 c\u00f3 th\u1ec3 thu ho\u1ea1ch. Thu v\u00e0o th\u1eddi \u0111i\u1ec3m n\u00e0y, h\u1ea1t gi\u1ed1ng \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t, t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m cao. Qu\u1ea3 H\u00f4ng th\u01b0\u1eddng ch\u00edn kh\u00f4ng \u0111\u1ec1u n\u00ean tr\u00ean 1 c\u00e2y v\u1eeba c\u00f3 qu\u1ea3 ch\u00edn v\u1eeba c\u00f3 qu\u1ea3 v\u1ecf \u0111\u00e3 kh\u00f4. C\u00f3 th\u1ec3 thu c\u1ea3 nh\u1eefng qu\u1ea3 v\u1ecf \u0111\u00e3 kh\u00f4 tr\u00ean c\u00e2y nh\u1eefng ch\u01b0a b\u1ecb t\u00e1ch.<\/p>\n Qu\u1ea3 thu v\u1ec1 c\u1ea7n ch\u1ebf bi\u1ebfn ngay, kh\u00f4ng \u0111\u1ec3 qu\u00e1 3 ng\u00e0y.<\/p>\n 2. Ch\u1ebf bi\u1ebfn h\u1ea1t gi\u1ed1ng<\/b><\/p>\n D\u00f9ng d\u00f9i \u0111\u1ee5c \u0111\u1ec3 \u0111\u1eadp qu\u1ea3 thu l\u1ea5y h\u1ea1t. D\u1ef1ng qu\u1ea3 theo chi\u1ec1u th\u1eb3ng \u0111\u1ee9ng v\u1edbi nh\u1eefng qu\u1ea3 c\u00f2n t\u01b0\u01a1i tr\u00ean 1 v\u1eadt k\u00ea ch\u1eafc. D\u00f9ng d\u00f9i g\u1ed7 \u0111\u1eadp t\u1eeb tr\u00ean xu\u1ed1ng qu\u1ea3 s\u1ebd t\u00e1ch \u0111\u00f4i, d\u00f9ng tay nh\u1eb9 nh\u00e0ng b\u1eeda ra v\u00e0 tu\u1ed1t l\u1ea5y h\u1ea1t d\u00ednh \u1edf hai gi\u00e1 no\u00e3n b\u00ean trong. Khi \u0111\u1eadp qu\u1ea3 ch\u00fa \u00fd \u0111\u1eadp nh\u1eb9 v\u1eeba ph\u1ea3i cho qu\u1ea3 v\u1eeba \u0111\u1ee7 t\u00e1ch, n\u1ebfu \u0111\u1eadp m\u1ea1nh v\u1ecf qu\u1ea3 d\u1eadp n\u00e1t l\u1eabn v\u00e0o \u1ebd l\u00e0m gi\u1ea3m \u0111\u1ed9 \u0111\u1ed9 thu\u1ea7n c\u1ee7a h\u1ea1t. V\u1edbi lo\u1ea1i qu\u1ea3 v\u1ecf \u0111\u00e3 kh\u00f4 \u0111\u1eb7t qu\u1ea3 n\u1eb1m ngang \u0111\u1ec3 \u0111\u1eadp cho qu\u1ea3 t\u00e1ch. Qu\u1ea3 n\u00e0o khi \u0111\u1eadp ra th\u1ea5y h\u1ea1t \u0111\u00e3 b\u1ecb s\u1eabm m\u00e0u l\u00e0 nh\u1eefng qu\u1ea3 \u0111\u00e3 t\u00e1ch tr\u00ean c\u00e2y b\u1ecb n\u01b0\u1edbc m\u01b0a th\u1ea5m v\u00e0o l\u00e0m gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng h\u1ea1t, c\u1ea7n lo\u1ea1i b\u1ecf.<\/p>\n H\u1ea1t t\u00e1ch xong \u0111\u1ec3 trong th\u00fang ho\u1eb7c m\u1eb9t, ph\u00eda tr\u00ean che b\u1eb1ng v\u1ea3i m\u00e0n v\u00e0 ph\u01a1i d\u01b0\u1edbi n\u1eafng nh\u1eb9 bu\u1ed5i s\u00e1ng v\u00e0 bu\u1ed5i chi\u1ec1u hai \u0111\u1ebfn ba ng\u00e0y, m\u1ed7i ng\u00e0y 2-3 ti\u1ebfng, th\u1eddi gian c\u00f2n l\u1ea1i trong ng\u00e0y hong trong ch\u1ed7 tho\u00e1ng m\u00e1t. Sau 3 ng\u00e0y h\u1ea1t \u0111\u00e3 kh\u00f4 c\u00f3 th\u1ec3 \u0111em gieo ho\u1eb7ch \u0111\u01b0a v\u00e0o b\u1ea3o qu\u1ea3n.<\/p>\n 3. B\u1ea3o qu\u1ea3n h\u1ea1t<\/b><\/p>\n H\u1ea1t \u0111\u1ef1ng trong t\u00fai p\u00f4ly\u00eatylen h\u00e0n k\u00edn, b\u1ea3o qu\u1ea3n trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 th\u00f4ng th\u01b0\u1eddng trong ph\u00f2ng. \u0110\u1ec3 t\u00fai h\u1ea1t n\u01a1i tho\u00e1ng m\u00e1t. B\u1eb1ng c\u00e1ch n\u00e0y c\u00f3 th\u1ec3 gi\u1eef s\u1ee9cn\u1ea3y m\u1ea7m c\u1ee7a h\u1ea1t \u0111\u1ebfn m\u00f9a h\u00e8. N\u1ebfu c\u00f3 \u0111i\u1ec1u ki\u1ec7n gi\u1eef c\u00e1c t\u00fai h\u1ea1t trong t\u1ee7 l\u1ea1nh chuy\u00ean d\u00f9ng c\u00f3 th\u1ec3 gi\u1eef cho h\u1ea1t v\u1eabn n\u1ea3y m\u1ea7m t\u1ed1t trong 1 n\u0103m.<\/p>\n Th\u00f4ng th\u01b0\u1eddng 1kg h\u1ea1t c\u00f3 kho\u1ea3ng 3,7 \u0111\u1ebfn 4 tri\u1ec7u h\u1ea1t. N\u1ebfu thu h\u00e1i ch\u1ebf bi\u1ebfn t\u1ed1t t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m ban \u0111\u1ea7u c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi 90%. Tuy nhi\u00ean theo c\u00e1ch gieo \u01b0\u01a1m th\u00f4ng th\u01b0\u1eddng hi\u1ec7n nay m\u1edbi \u0111\u1ea1t \u0111\u01b0\u1ee3c kho\u1ea3ng 250.000 \u0111\u1ebfn 300.000 c\u00e2y con tr\u00ean 1kg h\u1ea1t gi\u1ed1ng \u0111em gieo.<\/p>\n <\/p>\n <\/p>\n Ch\u01b0\u01a1ng III<\/b><\/p>\n Gieo t\u1ea1o c\u00e2y con<\/b><\/p>\n 1. Chu\u1ea9n b\u1ecb v\u01b0\u1eddn \u01b0\u01a1m<\/b><\/p>\n V\u01b0\u1eddn \u01b0\u01a1m ch\u1ecdn n\u01a1i \u0111\u1ea5t b\u1eb1ng ph\u1eb3ng, \u0111\u1ea5t c\u00e1t pha ho\u1eb7c th\u1ecbt nh\u1eb9 c\u00f2n m\u00e0u m\u1ee1, th\u1ea5m n\u01b0\u1edbc v\u00e0 tho\u00e1t n\u01b0\u1edbc t\u1ed1t. C\u1ea7n ch\u00fa \u00fd ch\u1ecdn n\u01a1i kh\u00f4ng b\u1ecb \u00fang n\u01b0\u1edbc d\u00f9 l\u00e0 t\u1ea1m th\u1eddi trong su\u1ed1t qu\u00e1 tr\u00ecnh \u01b0\u01a1m c\u00e2y.<\/p>\n Ph\u00e1t d\u1eaby s\u1ea1ch c\u1ecf v\u00e0 th\u1ef1c b\u00ec, ph\u01a1i kh\u00f4, gom v\u00e0 \u0111\u1ed1t. C\u00e0y ho\u1eb7c cu\u1ed1c tr\u01b0\u1edbc khi gieo \u00edt nh\u1ea5t 15 ng\u00e0y cho \u0111\u1ea5t \u1ea3i. \u0110\u1ea5t \u0111\u00e3 \u1ea3i \u0111\u1eadp nh\u1ecf ho\u1eb7c b\u1eeba k\u1ef9 2-3 l\u1ea7n. L\u00ean lu\u1ed1ng theo chi\u1ec1u cao sao cho khi m\u01b0a tho\u00e1t n\u01b0\u1edbc nhanh nh\u1ea5t. Sau khi l\u00ean lu\u1ed1ng \u0111\u1eadp nh\u1ecf \u0111\u1ea5t m\u1eb7t lu\u1ed1ng cho c\u00e1c h\u1ea1t \u0111\u1ea5t c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf \u0111\u1ec1u v\u00e0 b\u00e9 h\u01a1n 1cm l\u00e0 \u0111\u01b0\u1ee3c. Tr\u1ed9n 2-3 kg ph\u00e2n chu\u1ed3ng ho\u1eb7c 1kg ph\u00e2n vi sinh tr\u00ean m\u1ed7i m\u00e9t vu\u00f4ng m\u1eb7t lu\u1ed1ng. Tr\u1ed9n \u0111\u00e8u v\u1edbi \u0111\u1ea5t m\u1eb7t \u0111\u1ed9 s\u00e2u 5cm v\u00e0 san cho b\u1eb1ng ph\u1eb3ng. R\u1ea3i \u0111\u1ec1u l\u00ean tr\u00ean m\u1ed9t l\u1edbp c\u00e1t s\u1ea1ch kho\u1ea3ng 1 \u0111\u1ebfn 2 g\u00e1nh cho m\u1ed9t lu\u1ed1ng 10m2<\/sup> r\u1ed3i d\u00f9ng thanh g\u1ed7 r\u00e0 l\u1ea1i cho th\u1eadt ph\u1eb3ng m\u1eb7t v\u00e0 t\u1ea1o g\u1edd lu\u1ed1ng \u0111\u1ec3 h\u1ea1t kh\u00f4ng b\u1ecb tr\u00f4i ra kh\u1ecfi lu\u1ed1ng sau khi gieo.<\/p>\n Tr\u01b0\u1edbc khi gieo t\u01b0\u1edbi nu\u1edbc cho \u1ea9m kh\u1eafp m\u1eb7t lu\u1ed1ng r\u1ed3i phun ph\u00f2ng n\u1ea5m b\u1eb1ng benl\u00e1t n\u1ed3ng \u0111\u1ed9 5 ph\u1ea7n v\u1ea1n (5g benl\u00e1t \u0111\u00e3 \u0111\u01b0\u1ee3c ho\u00e0 tan trong c\u1ed3n pha cho 1 b\u00ecnh phun 10 l\u00edt). Phun \u0111\u1ec1u tr\u00ean kh\u1eafp m\u1eb7t lu\u1ed1ng tr\u01b0\u1edbc khi gieo h\u1ea1t.<\/p>\n 2. Gieo h\u1ea1t<\/b><\/p>\n H\u1ea1t gieo kh\u00f4ng c\u1ea7n x\u1eed l\u00fd tr\u01b0\u1edbc. D\u00f9ng tay r\u1ea3i \u0111\u1ec1u h\u1ea1t tr\u00ean m\u1eb7t lu\u1ed1ng v\u1edbi l\u01b0\u1ee3ng gieo 10-12g h\u1ea1t t\u1ed1t cho m\u1ed9t lu\u1ed1ng gieo 10m2<\/sup>. N\u00ean chia \u0111\u00f4i r\u1ea3i h\u1ea1t l\u00e0m hai l\u1ea7n cho \u0111\u1ec1u. H\u1ea1t H\u00f4ng r\u1ea5t d\u1ec5 gieo \u0111\u1ec1u v\u00ec n\u00f3 c\u00f3 m\u00e0u tr\u1eafng n\u00ean d\u1ec5 d\u00e0ng quan s\u00e1t l\u01b0\u1ee3ng h\u1ea1t tr\u00ean m\u1eb7t lu\u1ed1ng.<\/p>\n Sau khi gieo d\u00f9ng s\u00e0ng s\u00e0ng th\u00eam m\u1ed9t l\u1edbp c\u00e1t s\u1ea1ch \u0111\u1ee7 \u0111\u1ec3 v\u1eeba che k\u00edn h\u1ea1t. Ch\u00fa \u00fd kh\u00f4ng l\u1ea5p qu\u00e1 d\u00e0y. T\u01b0\u1edbi b\u1eb1ng b\u00ecnh phun thu\u1ed1c s\u00e2u cho \u0111\u1ee7 \u1ea9m kh\u1eafp l\u01b0\u1ee3ng c\u00e1t ph\u1ee7. Trong 20-25 ng\u00e0y \u0111\u1ea7u c\u1ea7n che m\u1eb7t lu\u1ed1ng b\u1eb1ng t\u1ea5m m\u00e0ng polyetylen \u0111\u1ec3 tr\u00e1nh m\u01b0a l\u00e0m tr\u00f4i h\u1ea1t, l\u00e0m d\u1eadp n\u00e1t c\u00e2y m\u1ea7m \u0111\u1ed3ng th\u1eddi gi\u1eef \u1ea9m cho lu\u1ed1ng gieo gi\u1ea3m b\u1edbt s\u1ed1 l\u1ea7n phun t\u01b0\u1edbi. D\u00f9ng thanh tre l\u00e0m khung th\u00e0nh h\u00ecnh v\u00f2m tr\u00ean m\u1eb7t lu\u1ed1ng \u0111\u1ec3 \u0111\u1ee1 t\u1ea5m polyetylen. Hai b\u00ean th\u00e0nh lu\u1ed1ng \u0111\u00e8 b\u1eb1ng \u0111\u1ea5t c\u1ee5c \u0111\u1ec3 gi\u1eef cho gi\u00f3 kh\u1ecfi bay. Khi phun t\u01b0\u1edbi m\u1edf ra v\u00e0 sau khi phun xong l\u1ea1i \u0111\u1eady l\u1ea1i ch\u01b0 c\u0169.<\/p>\n 3. Ch\u0103m s\u00f3c c\u00e2y gieo<\/b><\/p>\n Th\u01b0\u1eddng xuy\u00ean quan sat gi\u1eef \u1ea9m cho lu\u1ed1ng gieo, kh\u00f4ng \u0111\u1ec3 cho c\u00e1t tr\u00ean m\u1eb7t kh\u00f4 tr\u1eafng. Kho\u1ea3ng 10 ng\u00e0y sau khi gieo c\u00e2y m\u1ecdc, l\u00fac n\u00e0y v\u1eabn ph\u1ea3i ti\u1ebfp t\u1ee5c d\u00f9ng b\u00ecnh phun gi\u1eef \u1ea9m cho lu\u1ed1ng gieo. \u0110\u1ecbnh k\u1ef3 phun ph\u00f2ng n\u1ea5m 15 ng\u00e0y m\u1ed9t l\u1ea7n b\u1eb1ng benl\u00e1t v\u1edbi n\u1ed3ng \u0111\u1ed9 nh\u01b0 c\u0169, c\u1ea7n phun cho \u0111\u1ee7 \u01b0\u1edbt \u0111\u1ec1u th\u00e2n v\u00e0 l\u00e1 c\u00e0nh c\u00e2y con. Khi c\u00e2y \u0111\u01b0\u1ee3c 4 l\u00e1 l\u00e0 c\u00f3 th\u1ec3 d\u1ee1 b\u1ecf nil\u00f4ng che v\u00e0 t\u01b0\u1edbi b\u1eb1ng th\u00f9ng t\u01b0\u1edbi c\u00f3 h\u01b0\u01a1ng sen l\u1ed7 nh\u1ecf.<\/p>\n 4. C\u1ea5y c\u00e2y v\u00e0o b\u1ea7u<\/b><\/p>\n Khi c\u00e2y \u0111\u01b0\u1ee3c 6 l\u00e1 th\u00ec ti\u1ebfn h\u00e0nh c\u1ea5y ra b\u1ea7u. D\u00f9ng t\u00fai b\u1ea7u v\u1edbi k\u00edch th\u01b0\u1edbc 9 x 12cm \u0111\u1ec3 c\u1ea5y c\u00e2y. H\u1ed7n h\u1ee3p ru\u1ed9t b\u1ea7u g\u1ed3m 90% \u0111\u1ea5t t\u1ea7ng m\u1eb7t + 10% ph\u00e2n chu\u1ed3ng hoai \u0111\u00e3 \u0111\u01b0\u1ee3c \u1ee7 l\u1eabn v\u1edbi 3-4% ph\u00e2n super l\u00e2n… Sau khi c\u1ea5y ph\u1ea3i che cho c\u00e2y 2-3 ng\u00e0y cho c\u00e2y ph\u1ee5c h\u1ed3i sau \u0111\u00f3 d\u1ee1 to\u00e0n b\u1ed9 v\u1eadt che \u0111\u1ec3 c\u00f3 \u0111\u1ee7 \u00e1nh s\u00e1ng cho c\u00e2y m\u1ecdc. Trong th\u1eddi gia nu\u00f4i c\u00e2y c\u00f3 th\u1ec3 t\u01b0\u1edbi th\u00fac cho c\u00e2y b\u1eb1ng ph\u00e2n u r\u00ea n\u1ed3ng \u0111\u1ed9 1-2%, ho\u1eb7c c\u00f3 th\u1ec3 phun ph\u00e2n vi sinh thi\u00ean n\u00f4ng qua l\u00e1 theo ch\u1ec9 d\u1eabn.<\/p>\n Th\u00f4ng th\u01b0\u1eddng sau khi c\u00e2y \u0111\u00e3 ph\u1ee5c h\u1ed3i s\u1ebd sinh tr\u01b0\u1edfng r\u1ea5t nhanh. K\u1ec3 t\u1eeb khi gieo cho \u0111\u1ebfn khi c\u00e2y \u0111\u1ee7 ti\u00eau chu\u1ea9n \u0111em tr\u1ed3ng t\u1eeb 75-90 ng\u00e0y tu\u1ef3 theo th\u1eddi v\u1ee5 gieo v\u00e0 \u0111\u1ea5t v\u01b0\u1eddn \u01b0\u01a1m.<\/p>\n 5. Ti\u00eau chu\u1ea9n c\u00e2y con<\/b><\/p>\n C\u00e2y con cao 25-35 \u0111\u01b0\u1eddng k\u00ednh c\u1ed5 r\u1ec5 tr\u00ean 5mm \u0111\u00f3 l\u00e0 l\u00fac tr\u1ed3ng t\u1ed1t nh\u1ea5t. C\u1ea7n t\u00ednh to\u00e1n th\u1eddi v\u1ee5 gieo sao cho th\u1eadt kh\u1edbp v\u1edbi th\u1eddi v\u1ee5 tr\u1ed3ng v\u00ec ch\u1ec9 c\u1ea7n \u0111\u1ec3 qu\u00e1 1-2 tu\u1ea7n l\u00e0 c\u00e2y \u0111\u00e3 qu\u00e1 ti\u00eau chu\u1ea9n, c\u00e2y H\u00f4ng con th\u00e2n r\u1ea5t m\u1ec1m n\u1ebfu \u0111\u1ec3 cao qu\u00e1 s\u1ebd r\u1ea5t d\u1ec5 g\u1eaby khi v\u1eadn chuy\u1ec3n khi tr\u1ed3ng.<\/p>\n Ch\u01b0\u01a1ng IV<\/b><\/p>\n Tr\u1ed3ng r\u1eebng H\u00f4ng<\/b><\/p>\n 1. X\u1eed l\u00fd th\u1ef1c b\u00ec<\/b><\/p>\n H\u00f4ng l\u00e0 lo\u00e0i c\u00e2y \u01b0a s\u00e1ng c\u1ef1c \u0111oan, do v\u1eady d\u00f9 \u00e1p d\u1ee5ng ph\u01b0\u01a1ng th\u1ee9c tr\u1ed3ng n\u00e0o x\u1eed l\u00fd th\u1ef1c b\u00ec c\u0169ng l\u00e0 y\u1ebfu t\u1ed1 ph\u1ea3i coi tr\u1ecdng. C\u1ea7n \u0111\u1ea3m b\u1ea3o sau khi tr\u1ed3ng H\u00f4ng kh\u00f4ng b\u1ecb lo\u00e0i c\u00e2y kh\u00e1c che b\u00f3ng. T\u1ed1t nh\u1ea5t l\u00e0 ph\u00e1t th\u1ef1c b\u00ec to\u00e0n di\u1ec7n k\u1ebft h\u1ee3p tr\u1ed3ng c\u00e1c c\u00e2y n\u00f4ng nghi\u1ec7p trong n\u0103m \u0111\u1ea7u. C\u00f3 th\u1ec3 \u0111\u1ed1t n\u1ebfu c\u00f3 c\u00e1c bi\u1ec7n ph\u00e1p \u0111\u1ea3m b\u1ea3o kh\u00f4ng \u0111\u1ec3 l\u1eeda ch\u00e1y lan ra c\u00e1c khu v\u1ef1c xung quanh.<\/p>\n 2. L\u00e0m \u0111\u1ea5t<\/b><\/p>\n \u1edf nh\u1eefng n\u01a1i \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n ti\u1ebfn h\u00e0nh l\u00e0m \u0111\u1ea5t b\u1eb1ng c\u01a1 gi\u1edbi, \u0111\u1ea5t \u0111\u01b0\u1ee3c r\u00e0 s\u1ea1ch c\u00e2y b\u1ee5i, g\u1ed1c c\u00e2y g\u1ed7 sau \u0111\u00f3 ti\u1ebfn h\u00e0nh c\u00e0y ng\u1ea7m r\u1ea1ch tr\u1ed3ng theo \u0111\u01b0\u1eddng \u0111\u1ed3ng m\u1ee9c v\u1edbi \u0111\u1ed9 s\u00e2u 40-50cm, r\u1ed3i \u0111\u00e0o l\u1ea5p h\u1ed1 tr\u1ed3ng c\u00e2y tr\u00ean r\u1ea1ch c\u00e0y k\u00edch th\u01b0\u1edbc 30x30x30cm. C\u00f3 th\u1ec3 c\u00e0y m\u00e1y to\u00e0n di\u1ec7n b\u1eb1ng l\u01b0\u1ee1i c\u00e0y th\u01b0\u1eddng r\u1ed3i d\u00e0o h\u1ed1 tr\u1ed3ng c\u00e2y.<\/p>\n L\u00e0m \u0111\u1ea5t c\u1ee5c b\u1ed9<\/i><\/b><\/p>\n \u1edf nh\u1eefng n\u01a1i d\u1ed1c ti\u1ebfn h\u00e0nh l\u00e0m \u0111\u1ea5t th\u1ee7 c\u00f4ng. Sau khi x\u1eed l\u00fd th\u1ef1c b\u00ec ti\u1ebfn h\u00e0nh \u0111\u00e0o h\u1ed1 v\u1edbi k\u00edch th\u01b0\u1edbc 40x40x40cm. H\u1ed1 tr\u1ed3ng ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e0o v\u00e0 l\u1ea5p tr\u01b0\u1edbc khi tr\u1ed3ng \u00edt nh\u1ea5t 15 ng\u00e0y.<\/p>\n 3. B\u00f3n ph\u00e2n<\/b><\/p>\n N\u1ebfu c\u00f3 \u0111i\u1ec1u ki\u1ec7n b\u00f3n l\u00f3t cho m\u1ed7i g\u1ed1c H\u00f4ng 1kg ph\u00e2n chu\u1ed3ng ho\u1eb7c 100-150g ph\u00e2n vi sinh. Vi\u1ec7c b\u00f3n ph\u00e2n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n l\u00fac l\u1ea5p h\u1ed1. Ph\u00e2n \u0111\u01b0\u1ee3c tr\u1ed9n \u0111\u1ec1u \u1edf ph\u1ea7n \u0111\u1ea5t t\u1eeb \u0111\u00e1y \u0111\u1ebfn 2\/3 \u0111\u1ed9 s\u00e2u h\u1ed1 t\u1eeb \u0111\u00e1y l\u00ean, sau \u0111\u00f3 l\u1ea5p \u0111\u1ea7y h\u1ed1 chu\u1ea9n b\u1ecb tr\u1ed3ng c\u00e2y.<\/p>\n 4. Th\u1eddi v\u1ee5 tr\u1ed3ng<\/b><\/p>\n \u1edf mi\u1ec1n B\u1eafc t\u1ed1t nh\u1ea5t tr\u1ed3ng t\u1eeb th\u00e1ng 4-6. Kh\u00f4ng n\u00ean tr\u1ed3ng H\u00f4ngv\u00e0o v\u1ee5 thu c\u00e2y s\u1ebd m\u1ea5t m\u1ed9t m\u00f9a sinh tr\u01b0\u1edfng v\u00e0 n\u0103m sau c\u0169ng ph\u00e1t tri\u1ec3n k\u00e9m. Mi\u1ec1n Trung v\u00e0 T\u00e2y Nguy\u00ean m\u00f9a m\u01b0a ch\u1eadm h\u01a1n ti\u1ebfn h\u00e0nh tr\u1ed3ng c\u00f9ng v\u1ee5 v\u1edbi c\u00e1c lo\u00e0i c\u00e2y tr\u1ed3ng kh\u00e1c.<\/p>\n 5. Ph\u01b0\u01a1ng th\u1ee9c v\u00e0 m\u1eadt \u0111\u1ed9 tr\u1ed3ng<\/b><\/p>\n Tu\u1ef3 theo ph\u01b0\u01a1ng th\u1ee9c tr\u1ed3ng m\u00e0 m\u1eadt \u0111\u1ed9 c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u1eeb 100-1100 c\u00e2y\/ha. C\u00f3 th\u1ec3 tr\u1ed3ng H\u00f4ng v\u1edbi ch\u1ee9c n\u0103ng ph\u00f2ng h\u1ed9 theo c\u00e1c ph\u01b0\u01a1ng th\u1ee9c sau \u0111\u00e2y:<\/p>\n * H\u1ed3n giao theo h\u00e0ng<\/i><\/p>\n – Tr\u1ed3ng H\u00f4ng h\u1ed7n giao v\u1edbi M\u1ee1 theo h\u00e0ng. M\u1eadt \u0111\u1ed9 chung 1.100 c\u00e2y\/ha (H\u00f4ng 550 c\u00e2y, M\u1ee1 550 c\u00e2y. C\u1ef1 ly tr\u1ed3ng 3x3m)<\/p>\n – Tr\u1ed3ng H\u00f4ng h\u1ed7n giao v\u1edbi Sao \u0111en ho\u1eb7c D\u1ea7u n\u01b0\u1edbc theo h\u00e0ng, c\u1ee9 hai h\u00e0ng H\u00f4ng 1 h\u00e0ng Sao \u0111en ho\u1eb7c D\u1ea7u n\u01b0\u1edbc. M\u1eadt \u0111\u1ed9 H\u00f4ng 1.111 c\u00e2y\/ha, k\u1ebft h\u1ee3p 555 c\u00e2y Sao ho\u1eb7c D\u1ea7u\/ha. M\u1eadt \u0111\u1ed9 chung 1666 c\u00e2y \/ha (h\u00e0ng 3m, c\u1ef1 ly c\u00e2y 2m).<\/p>\n – Tr\u1ed3ng H\u00f4ng xen Lu\u1ed3ng. Lu\u1ed3ng 200 c\u00e2y\/ha (C\u1ef1 ly 10mx5m). Gi\u1eefa hai h\u00e0ng Lu\u1ed3ng tr\u1ed3ng 1 h\u00e0ng v\u00e0 H\u00f4ng s\u1ebd c\u00f3 c\u1ef1 ly h\u00e0ng 10m, c\u00e2y c\u00e1ch c\u00e2y 2,5m (400 c\u00e2y\/ha). M\u1eadt \u0111\u1ed9 chung 600 c\u00e2y\/ha.<\/p>\n * Tr\u1ed3ng t\u1ea1o c\u1ea3nh quan m\u00f4i tr\u01b0\u1eddng, ph\u00f2ng h\u1ed9 cho c\u00e2y n\u00f4ng nghi\u1ec7p<\/i><\/p>\n – Tr\u1ed3ng H\u00f4ng theo h\u00e0ng c\u1ef1 ly 10m, 20m, 30m\u00e9t tr\u00ean h\u00e0ng tr\u1ed3ng c\u00e2y c\u00e1ch c\u00e2y 2,5m\u00e9t, (\u1ee9ng v\u1edbi m\u1eadt \u0111\u1ed9 400 c\u00e2y, 200 c\u00e2y, 133 c\u00e2y\/ha). Ph\u01b0\u01a1ng th\u1ee9c n\u00e0y \u00e1p d\u1ee5ng cho v\u00f9ng \u0111\u1ea5t th\u1ea5p g\u1ea7n khu d\u00e2n c\u01b0, khu c\u00f4ng nghi\u1ec7p \u0111\u1ec3 c\u1ea3i thi\u1ec7n m\u00f4i tr\u01b0\u1eddng sinh th\u00e1i v\u00e0 v\u1eabn canh t\u00e1c c\u00e2y n\u00f4ng nghi\u1ec7p nh\u01b0 L\u1ea1c, Ng\u00f4, \u0110\u1ed7,…<\/p>\n – \u0110\u1ec3 t\u1ea1o m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c v\u00e0 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n che b\u00f3ng th\u00edch h\u1ee3p cho ch\u00e8 g\u00f3p ph\u1ea7n t\u0103ng n\u0103ng su\u1ea5t, tr\u1ed3ng H\u00f4ng tr\u00ean n\u01b0\u01a1ng ch\u00e8 r\u1ea3i \u0111\u1ec1u v\u1edbi m\u1eadt \u0111\u1ed9 100 c\u00e2y\/ha (10mx10m). Ph\u01b0\u01a1ng th\u1ee9c gi\u00fap cho ch\u00e8 ra b\u00fap t\u1ed1t h\u01a1n, kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng ch\u00e8 b\u00fap v\u00e0 t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ph\u00f2ng h\u1ed9 c\u1ee7a c\u00e1c \u0111\u1ed3i ch\u00e8.<\/p>\n 6. K\u1ef9 thu\u1eadt tr\u1ed3ng<\/b><\/p>\n C\u00e2y tr\u1ed3ng \u0111\u1ee7 ti\u00eau chu\u1ea9n quy \u0111\u1ecbnh, kh\u00f4ng tr\u1ed3ng c\u00e2y qu\u00e1 l\u1edbn. Tr\u01b0\u1edbc khi tr\u1ed3ng 5-7 ng\u00e0y ng\u1eebng t\u1ea5t c\u1ea3 c\u00e1c bi\u1ec7n ph\u00e1p ch\u0103m s\u00f3c, c\u1eaft b\u1edbt 1\/2 phi\u1ebfn l\u00e1 c\u1ee7a m\u1ed9t n\u1eeda s\u1ed1 l\u00e1 ph\u00eda g\u1ed1c c\u00e2y.<\/p>\n Tr\u01b0\u1edbc khi \u0111em tr\u1ed3ng ph\u1ea3i t\u01b0\u1edbi v\u1eeba \u0111\u1ee7 \u1ea9m cho b\u1ea7u. Tr\u1ed3ng c\u00e2y v\u00e0o nh\u1eefng ng\u00e0y m\u01b0a khi \u0111\u1ea5t trong h\u1ed1 \u0111\u00e3 \u0111\u1ee7 \u1ea9m. Khi tr\u1ed3ng ch\u00fa \u00fd l\u00e8n ch\u1eb7t \u0111\u1ea5t xung quanh b\u1ea7u \u0111\u1ebfn ngang c\u1ed5 r\u1ec5 r\u1ed3i ph\u1ee7 th\u00eam m\u1ed9t l\u1edbp \u0111\u1ea5t x\u1ed1p l\u00ean cao h\u01a1n c\u1ed5 r\u1ec5 2-3cm. C\u1ea7n ch\u00fa \u00fd khi tr\u1ed3ng kh\u00f4ng l\u00e0m cong g\u1eadp c\u00e1c r\u1ec5 th\u00f2 ra ngo\u00e0i b\u1ea7u.<\/p>\n Ch\u01b0\u01a1ng V<\/b><\/p>\n Ch\u0103m s\u00f3c b\u1ea3o v\u1ec7 r\u1eebng tr\u1ed3ng<\/b><\/p>\n 1. Nghi\u1ec7m thu<\/b><\/p>\n Sau khi tr\u1ed3ng 15 ng\u00e0y ti\u1ebfn h\u00e0nh nghi\u1ec7m thu. N\u1ebfu t\u1ef7 l\u1ec7 s\u1ed1ng th\u1ea5p h\u01a1n 85% ph\u1ea3i ti\u1ebfn h\u00e0nh tr\u1ed3ng d\u1eb7m ngay c\u00e1c h\u1ed1 c\u00e2y b\u1ecb ch\u1ebft.<\/p>\n 2. Ch\u0103m s\u00f3c r\u1eebng tr\u1ed3ng<\/b><\/p>\n R\u1eebng tr\u1ed3ng \u0111\u01b0\u1ee3c ch\u0103m s\u00f3c 3 n\u0103m li\u00ean t\u1ee5c:<\/p>\n * N\u0103m th\u1ee9 nh\u1ea5t<\/i><\/b><\/p>\n Ba th\u00e1ng sau khi tr\u1ed3ng ti\u1ebfn h\u00e0nh ch\u0103m s\u00f3c l\u1ea7n th\u1ee9 nh\u1ea5t. X\u1edbi nh\u1eb9 xung quanh g\u1ed1c s\u00e2u 7-10cm th\u00e0nh v\u00f2ng tr\u00f2n \u0111\u01b0\u1eddng k\u00ednh 90-100cm. Nh\u1eb7t h\u1ebft c\u1ecf r\u00e1c, ph\u00e1t h\u1ebft c\u00e0nh nh\u00e1nh c\u00e1c c\u00e2y b\u1ee5i xung quanh c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e2y tr\u1ed3ng.<\/p>\n Ch\u0103m s\u00f3c l\u1ea7n th\u1ee9 hai: Cu\u1ed1i m\u00f9a m\u01b0a ti\u1ebfn h\u00e0nh ch\u0103m s\u00f3c l\u1ea7n th\u1ee9 hai (6-7 th\u00e1ng sau khi tr\u1ed3ng). N\u1ed9i dung g\u1ed3m x\u1edbi \u0111\u1ea5t vun g\u1ed1c, c\u1eaft \u0111\u1ee9t c\u00e1c lo\u1ea1i d\u00e2y leo b\u00e1m v\u00e0o c\u00e2y tr\u1ed3ng, t\u1ec9a b\u1edbt c\u00e1c c\u00e0nh g\u1ea7n g\u1ed1c \u0111\u1ec3 t\u1ea1o \u0111o\u1ea1n th\u00e2n d\u01b0\u1edbi c\u00e0nh d\u00e0i v\u00e0 th\u1eb3ng.<\/p>\n * N\u0103m th\u1ee9 hai:<\/i><\/b>Ch\u0103m s\u00f3c hai l\u1ea7n<\/p>\n L\u1ea7n m\u1ed9t: N\u1ed9i dung ch\u0103m s\u00f3c nh\u01b0 l\u1ea7n \u0111\u1ea7u n\u0103m th\u1ee9 nh\u1ea5t nh\u01b0ng m\u1edf r\u1ed9ng ph\u1ea1m vi x\u1edbi x\u00e1o th\u00e0nh v\u00f2ng tr\u00f2n \u0111\u01b0\u1eddng k\u00ednh 1-1,2m quanh h\u1ed1. Trong l\u1ea7n ch\u0103m s\u00f3c n\u00e0y b\u00f3n th\u00fac cho c\u00e2y 50-100g NPK ho\u1eb7c 20-30g ure cho m\u1ed9t g\u1ed1c. X\u1edbi nh\u1eb9 1 v\u00f2ng c\u00e1ch g\u1ed1c 20-30cm s\u00e2u 10cm, r\u1ea3i \u0111\u1ec1u ph\u00e2n v\u00e0o r\u00e3nh r\u1ed3i l\u1ea5p \u0111\u1ea5t b\u1eb1ng \u0111\u1ea5t m\u1eb7t. B\u00f3n th\u00fac v\u00e0o nh\u1eefng ng\u00e0y r\u00e2m m\u00e1t, sau nh\u1eefng ng\u00e0y m\u01b0a \u0111\u1ea5t \u1ea9m.<\/p>\n * N\u0103m th\u1ee9 ba: <\/i><\/b>Ch\u0103m s\u00f3c hai l\u1ea7n nh\u01b0 n\u0103m th\u1ee9 hai.<\/p>\n 3. Qu\u1ea3n l\u00fd, b\u1ea3o v\u1ec7<\/b><\/p>\n C\u00e2y tr\u1ed3ng c\u1ea7n b\u1ea3o v\u1ec7 t\u1ed1t ngay nh\u1eefng ng\u00e0y \u0111\u1ea7u. C\u00e2y H\u00f4ng r\u1ea5t m\u1ec1m d\u1ec5 g\u1eaby n\u00ean tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng \u0111\u1ec3 tr\u00e2u b\u00f2 v\u00e0o khu v\u1ef1c tr\u1ed3ng trong 1-2 n\u0103m \u0111\u1ea7u v\u00e0 ng\u0103n ch\u1eb7n c\u00e1c h\u00e0nh vi v\u00f4 \u00fd th\u1ee9c c\u1ee7a ng\u01b0\u1eddi nh\u01b0 b\u1ebb ng\u1ecdn v\u00e0 c\u00e0nh nh\u00e1nh c\u00e2y.<\/p>\n Sau khi tr\u1ed3ng ph\u1ea3i l\u1eadp h\u1ed3 s\u01a1 ghi ch\u00e9p c\u00e1c x\u1eed l\u00fd k\u1ef9 thu\u1eadt, t\u00ecnh tr\u1ea1ng r\u1eebng tr\u1ed3ng v\u00e0 c\u00e1c ghi ch\u00fa c\u1ea7n thi\u1ebft kh\u00e1c.<\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" H\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt tr\u1ed3ng c\u00e2y H\u00f4ng
\n(Paulownia fortunei)
\nL\u1eddi n\u00f3i \u0111\u1ea7u
\nC\u00e2y H\u00f4ng t\u00ean khoa h\u1ecdc Paulownia fortunei l\u00e0 m\u1ed9t trong 9 lo\u00e0i c\u00e2y g\u1ed7 thu\u1ed9c chi Paulownia h\u1ecd hoa M\u1ed7 ch\u00f3 Scrophulariaceae. N\u00f3 thu\u1ed9c lo\u1ea1i c\u00e2y g\u1ed7 l\u1edbn l\u00e1 r\u1ed9ng c\u00f3 ph\u00e2n b\u1ed1 t\u1ef1 nhi\u00ean \u1edf Trung Qu\u1ed1c, L\u00e0o v\u00e0 m\u1ed9t t\u1ec9nh \u1edf Vi\u1ec7t Nam. H\u00f4ng sinh tr\u01b0\u1edfng nhanh, t\u00e1n l\u00e1 th\u01b0a, l\u00e1 d\u1ec5 ph\u00e2n gi\u1ea3i c\u00f3 t\u00e1c d\u1ee5ng c\u1ea3i t\u1ea1o \u0111\u1ea5t t\u1ed1t, r\u1ec5 ph\u00e2n b\u1ed1 s\u00e2u 30-40cm d\u01b0\u1edbi m\u1eb7t \u0111\u1ea5t n\u00ean \u00edt c\u1ea1nh tranh v\u1edbi c\u00e1c lo\u00e0i c\u00e2y ng\u1eafn ng\u00e0y, \u00edt cong v\u00eanh l\u00e0 nguy\u00ean li\u1ec7u t\u1ed1t trong c\u00f4ng nghi\u1ec7p g\u1ed7 v\u00e1n nh\u00e2n t\u1ea1o v\u00e0 c\u00e1c \u0111\u1ed3 d\u00f9ng th\u00f4ng th\u01b0\u1eddng trong gia \u0111\u00ecnh.
\nDo c\u00f3 nhi\u1ec1u \u0111\u1eb7c t\u00ednh \u01b0u vi\u1ec7t n\u00ean H\u00f4ng \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u00fa \u00fd nghi\u00ean c\u1ee9u, ph\u00e1t tri\u1ec3n \u1edf nhi\u1ec1u n\u01b0\u1edbc. \u1edf Trung Qu\u1ed1c 1,8 ha c\u00e1c lo\u00e0i thu\u1ed9c chi Paulownia \u0111\u00e3 \u0111\u01b0\u1ee3c g\u00e2y tr\u1ed3ng. M\u1ed9t s\u1ed1 n\u01b0\u1edbc kh\u00e1c nh\u01b0 M\u1ef9, \u00fac c\u0169ng ch\u00fa \u00fd nghi\u00ean c\u1ee9u ph\u00e1t tri\u1ec3n lo\u00e0i c\u00e2y n\u00e0y. \u1edf Vi\u1ec7t Nam H\u00f4ng m\u1edbi \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m g\u00e2y tr\u1ed3ng m\u1ea5y n\u0103m g\u1ea7n \u0111\u00e2y. C\u00e2y sinh tr\u01b0\u1edfng kh\u00e1 nhanh trong m\u1ea5y n\u0103m \u0111\u1ea7u v\u00e0 t\u1ecf ra c\u00f3 ti\u1ec1m n\u0103ng ph\u00e1t tri\u1ec3n r\u1ed9ng cho c\u00e1c m\u1ee5c \u0111\u00edch tr\u1ed3ng r\u1eebng nguy\u00ean li\u1ec7u, t\u1ea1o c\u1ea3nh quan m\u00f4i tr\u01b0\u1eddng. H\u00f4ng c\u0169ng l\u00e0 m\u1ed9t c\u00e2y s\u1ed1ng r\u1ea5t l\u00e2u n\u0103m n\u00ean c\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u1ed3ng r\u1eebng ph\u00f2ng h\u1ed9.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[15],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/405"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=405"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/405\/revisions"}],"predecessor-version":[{"id":2226,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/405\/revisions\/2226"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=405"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=405"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=405"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}