{"id":8608,"date":"2009-07-24T02:27:07","date_gmt":"2009-07-23T19:27:07","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2009\/03\/cay-truc-sao\/"},"modified":"2020-07-06T08:21:00","modified_gmt":"2020-07-06T01:21:00","slug":"cay-truc-sao","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/cay-truc-sao\/","title":{"rendered":"C\u00e2y tr\u00fac s\u00e0o"},"content":{"rendered":"

Nguy\u1ec5n T\u1eed \u01af\u1edfng<\/em><\/strong><\/p>\n

Vi\u1ec7n khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t nam<\/u><\/h2>\n

T\u00ean Vi\u1ec7t nam: Tr\u00fac s\u00e0o<\/em><\/strong><\/p>\n

T\u00ean \u0111\u1ecba ph\u01b0\u01a1ng: Tr\u00fac to, M\u1ea1y khoang c\u00e1i, M\u1ea1y khoang ho\u00e0i, S\u00e0o p\u00ean<\/p>\n

T\u00ean khoa h\u1ecdc: Phyllostachys pubescens<\/em><\/strong> Mazel ex H.de Lehaie<\/strong><\/p>\n

T\u00ean KH kh\u00e1c: Bambusa mosoo Japon ex Sieb, Bambusa edulis Carziere, Phyllostachys mitis A. et C. Riviere, Phyllostachys edulis (Carz.) Riviere, Phyllostachys heterocycla var pubescens (Mazel)Ohwi<\/p>\n

Phyllostachys heterocycla f. pubescens (Mazel) Muroi<\/p>\n

1. \u0110\u1eb7c \u0111i\u1ec3m nh\u1eadn bi\u1ebft<\/strong><\/p>\n

Tr\u00fac s\u00e0o l\u00e0 lo\u1ea1i tre kh\u00f4ng gai, l\u00e1 nh\u1ecf, m\u1ecdc ph\u00e2n t\u00e1n t\u1eebng c\u00e2y \u0111\u01a1n \u0111\u1ed9c – th\u00e2n ng\u1ea7m d\u1ea1ng roi, th\u00e2n kh\u00ed sinh \u0111\u1ee9ng th\u1eb3ng – kh\u00f4ng c\u00f3 ng\u1ecdn cong r\u1ee7.<\/p>\n

K\u00edch th\u01b0\u1edbc c\u00e2y trung b\u00ecnh: Th\u00e2n tre cao 10m, \u0111\u01b0\u1eddng k\u00ednh 5cm, l\u00f3ng d\u00e0i 25cm, v\u00e1ch th\u00e2n d\u1ea7y 0,6cm, th\u00e2n c\u00e2y t\u01b0\u01a1i n\u1eb7ng 6kg (Theo t\u00e0i li\u1ec7u c\u1ee7a Trung Qu\u1ed1c th\u00ec Tr\u00fac s\u00e0o \u1edf Trung Qu\u1ed1c c\u00f3 \u0111\u01b0\u1eddng k\u00ednh t\u1edbi 18cm).<\/p>\n

Th\u00e2n th\u1eb3ng, ph\u1ea7n th\u00e2n kh\u00f4ng c\u00f3 c\u00e0nh th\u00ec tr\u00f2n \u0111\u1ec1u, v\u00f2ng th\u00e2n kh\u00f4ng n\u1ed5i r\u00f5, v\u00f2ng mo l\u00e0 m\u1ed9t \u0111\u01b0\u1eddng g\u1edd; Ph\u1ea7n th\u00e2n c\u00f3 c\u00e0nh th\u00ec kh\u00f4ng tr\u00f2n \u0111\u1ec1u; c\u00f3 hai v\u1ebft l\u00f5m ch\u1ea1y d\u1ecdc d\u00f3ng, m\u1ed9t v\u1ebft l\u00f5m to, m\u1ed9t v\u1ebft l\u00f5m nh\u1ecf \u1ee9ng v\u1edbi c\u00e0nh to v\u00e0 c\u00e0nh nh\u1ecf. Th\u00e2n non c\u00f3 nhi\u1ec1u l\u00f4ng s\u1edbm r\u1ee5ng. M\u1ed7i \u0111\u1ed1t c\u00f3 hai c\u00e0nh (m\u1ed9t s\u1ed1 \u0111\u1ed1t ph\u00eda d\u01b0\u1edbi c\u00f3 m\u1ed9t c\u00e0nh) m\u1ed9t c\u00e0nh to v\u00e0 m\u1ed9t c\u00e0nh nh\u1ecf h\u01a1n (c\u00e1c c\u00e0nh th\u1ee9 c\u1ea5p c\u0169ng m\u1ed9t to, m\u1ed9t nh\u1ecf).<\/p>\n

Phi\u1ebfn l\u00e1 thu\u00f4n d\u00e0i, \u0111\u1ea7u v\u00fat nh\u1ecdn, \u0111u\u00f4i h\u00ecnh n\u00eam h\u01a1i t\u00f9; d\u00e0i 12 cm, r\u1ed9ng 1,5cm, m\u1eb7t tr\u00ean nh\u1eb5n, m\u1eb7t d\u01b0\u1edbi c\u00f3 l\u00f4ng t\u01a1, hai m\u00e9p c\u00f3 r\u0103ng s\u1eafc, th\u00eca l\u00eca v\u00e0 tai b\u1eb9 l\u00e1 bi\u1ebfn th\u00e0nh l\u00f4ng s\u1edbm r\u1ee5ng.<\/p>\n

B\u1eb9 mo h\u00ecnh chu\u00f4ng cao, \u0111\u1ec9nh h\u1eb9p, cao 20cm \u0111\u00e1y r\u1ed9ng 9cm. B\u1eb9 mo m\u1ecfng, m\u1ec1m, d\u1ebbo (kh\u00e1c v\u1edbi nhi\u1ec1u lo\u1ea1i mo tre th\u01b0\u1eddng c\u1ee9ng r\u00f2n) c\u00f3 g\u00e2n d\u1ecdc n\u1ed5i r\u00f5, m\u1eb7t ngo\u00e0i c\u00f3 l\u00f4ng c\u1ee9ng m\u1ea7u n\u00e2u s\u1edbm r\u1ee5ng c\u00f3 nhi\u1ec1u \u0111\u1ed1m ch\u1ea5m n\u00e2u \u0111en.<\/p>\n

L\u00e1 mo nh\u1ecf (r\u1ed9ng 1cm, d\u00e0i 5cm) h\u00ecnh ng\u1ecdn gi\u00e1o, l\u1eadt ng\u1eeda (c\u1ee5p v\u1ec1 ph\u00eda l\u01b0ng mo). Tai mo v\u00e0 th\u00eca l\u00eca bi\u1ebfn th\u00e0nh l\u00f4ng d\u00e0i 1cm. Hoa t\u1ef1 \u0111\u1ea7u c\u00e0nh, c\u00f3 l\u00e1 b\u1eafc d\u1ea1ng mo c\u00f3 l\u00f4ng; Hoa ch\u00e9t c\u00f3 nhi\u1ec1u hoa – m\u1ed7i n\u00e1ch hoa ch\u00e9t c\u00f3 hai hoa nh\u1ecf, d\u00e0i.<\/p>\n

2. \u0110\u1eb7c t\u00ednh sinh h\u1ecdc, sinh th\u00e1i h\u1ecdc<\/strong><\/p>\n

2.1. \u0110i\u1ec1u ki\u1ec7n t\u1ef1 nhi\u00ean:<\/em><\/strong><\/p>\n

V\u00f9ng tr\u1ed3ng nhi\u1ec1u Tr\u00fac S\u00e0o c\u00f3 kh\u00ed h\u1eadu \u00e1 nhi\u1ec7t \u0111\u1edbi v\u00f9ng n\u00fai cao, chia l\u00e0m hai m\u00f9a: M\u00f9a m\u01b0a n\u00f3ng; m\u00f9a kh\u00f4 l\u1ea1nh, th\u01b0\u1eddng hay c\u00f3 s\u01b0\u01a1ng mu\u1ed1i v\u00e0 \u0111\u00f4i khi c\u00f3 tuy\u1ebft. S\u1ed1 li\u1ec7u kh\u00ed t\u01b0\u1ee3ng trong 5 n\u0103m c\u1ee7a Tr\u1ea1m kh\u00ed t\u01b0\u1ee3ng Ng\u00e2n S\u01a1n (1050<\/sup>59′ kinh \u0111\u1ed9 \u0110\u00f4ng, 220<\/sup>26′ v\u0129 \u0111\u1ed9 B\u1eafc, cao 600m so v\u1edbi m\u1eb7t bi\u1ec3n) cho bi\u1ebft: Nhi\u1ec7t \u0111\u1ed9 b\u00ecnh qu\u00e2n h\u00e0ng n\u0103m l\u00e0 200<\/sup>C, cao nh\u1ea5t l\u00e0 300<\/sup>C v\u00e0o th\u00e1ng 8, th\u1ea5p nh\u1ea5t l\u00e0 50<\/sup>C v\u00e0o th\u00e1ng gi\u00eang. L\u01b0\u1ee3ng m\u01b0a h\u00e0ng n\u0103m 1343,6mm; m\u00f9a m\u01b0a n\u00f3ng t\u1eeb th\u00e1ng 4 \u0111\u1ebfn th\u00e1ng 9 – l\u01b0\u1ee3ng m\u01b0a 1045,2mm chi\u1ebfm 86% l\u01b0\u1ee3ng m\u01b0a c\u1ea3 n\u0103m; m\u00f9a kh\u00f4 l\u1ea1nh t\u1eeb th\u00e1ng 10 \u0111\u1ebfn th\u00e1ng 3 n\u0103m sau – l\u01b0\u1ee3ng m\u01b0a 263,4mm chi\u1ebfm 14% l\u01b0\u1ee3ng m\u01b0a c\u1ea3 n\u0103m.<\/p>\n

\u0110\u1ecba h\u00ecnh l\u00e0 \u0111\u1ed3i n\u00fai, \u0111\u1ed9 d\u1ed1c 10-300<\/sup> , cao 400-1400m so v\u1edbi m\u1eb7t bi\u1ec3n. \u0110\u00e1 m\u1eb9 l\u00e0 sa phi\u1ebfn th\u1ea1ch, \u0111\u00e1 v\u00f4i, Gneiss, phi\u1ebfn th\u1ea1ch Mica. Th\u00e0nh ph\u1ea7n c\u01a1 gi\u1edbi nh\u1eb9 \u0111\u1ebfn trung b\u00ecnh. L\u1edbp \u0111\u1ea5t m\u1eb7t (0-10cm) t\u01a1i x\u1ed1p – H\u00e0m l\u01b0\u1ee3ng c\u00e1t v\u1eadt l\u00fd cao h\u01a1n l\u1edbp \u0111\u1ea5t s\u00e2u v\u00e0 ng\u01b0\u1ee3c l\u1ea1i h\u00e0m l\u01b0\u1ee3ng s\u00e9t v\u1eadt l\u00fd l\u1ee9op \u0111\u1ea5t m\u1eb7t l\u1ea1i th\u1ea5p h\u01a1n l\u1edbp \u0111\u1ea5t s\u00e2u. \u0110\u1ea5t c\u00f3 c\u1ea5u t\u01b0\u1ee3ng vi\u00ean v\u00e0 h\u1ea1t, c\u00f3 khi ph\u00e2n t\u1ea7ng kh\u00f4ng r\u00f5 r\u1ec7t; \u0111\u1ea5t th\u01b0\u1eddng s\u00e2u 80-100cm c\u00f3 n\u1edbi s\u00e2u t\u1edbi 130cm; t\u1ea7ng A m\u1ea7u x\u00e1m \u0111\u1ebfn x\u00e1m \u0111en, c\u00f3 n\u1edbi m\u1ea7u \u0111en; t\u1ea7ng B m\u1ea7u x\u00e1m n\u00e2u c\u00f3 ch\u1ed7 \u0111\u00e1 l\u1eabn 4-10%.<\/p>\n

2.2 \u0110\u1eb7c \u0111i\u1ec3m qu\u1ea7n th\u1ec3, sinh s\u1ea3n, sinh tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n<\/em><\/strong><\/p>\n

Tr\u00fac s\u00e0o l\u00e0 lo\u00e0i \u0111\u01b0\u1ee3c tr\u1ed3ng th\u00e0nh r\u1eebng. Theo t\u1eadp qu\u00e1n c\u1ee7a nh\u00e2n d\u00e2n \u0111\u1ecba ph\u01b0\u01a1ng Tr\u00fac s\u00e0o th\u01b0\u1eddng \u0111\u01b0\u1ee3c tr\u1ed3ng thu\u1ea7n lo\u1ea1i t\u1eebng \u0111\u00e1m 1-2 ha \u1edf s\u01b0\u1eddn \u0111\u1ed3i,; trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n ch\u00fang x\u00e2m l\u1ea5n v\u00e0o r\u1eebng g\u1ed7 ngh\u00e8o ki\u1ec7t \u1edf xung quanh t\u1ea1o n\u00ean r\u1eebng h\u1ed7n giao v\u1edbi c\u00e2y g\u1ed7, t\u1ea7ng tr\u00ean c\u00f3 Xoan r\u1eebng (Spondias dulcis<\/em>), Th\u00f4ng n\u00e0ng (Dacrycarpus imbricatus<\/em>). . . c\u00e2y g\u1ed7 c\u00f9ng t\u1ea7ng c\u00f3 Mu\u1ed3ng tr\u00e2u (Cassia alata<\/em>), Ch\u1eb9o (Engeldhartia chrysolepis<\/em>) .. . c\u00e2y nh\u1ecf, c\u00e2y c\u1ecf t\u1ea7ng d\u01b0\u1edbi c\u00f3 Ba b\u00e9t (Mallotus cochinchinensis<\/em>), Mu\u1ed1i \u0103n (Ardisia colorata<\/em>), Lau (Saccharum arundinaceum<\/em>), c\u1ecf tranh (Imperata cylindrica<\/em>).<\/p>\n

Tr\u00fac s\u00e0o c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng ra hoa r\u1ed3i ch\u1ebft t\u1eebng c\u00e2y ho\u1eb7c t\u1eebng \u0111\u00e1m nh\u01b0ng c\u0169ng ch\u01b0a t\u00ecm \u0111\u01b0\u1ee3c h\u1ea1t. Sau khi ra hoa, c\u00e2y ch\u1ebft, n\u1ebfu r\u1eebng \u0111\u01b0\u1ee3c ch\u0103m s\u00f3c th\u00ec th\u00e2n ng\u1ea7m l\u1ea1i t\u00e1i sinh cho th\u1ebf h\u1ec7 r\u1eebng m\u1edbi.<\/p>\n

Quan s\u00e1t Tr\u00fac s\u00e0o tr\u1ed3ng \u1edf nh\u1eefng \u0111\u1ed9 cao so v\u1edbi m\u1eb7t bi\u1ec3n kh\u00e1c nhau th\u1ea5y sinh tr\u01b0\u1edfng c\u00f3 kh\u00e1c nhau : Th\u01b0\u1eddng \u1edf tr\u00ean 800m [Nguy\u00ean B\u00ecnh(Cao B\u1eb1ng), Ho\u00e0ng Su Ph\u00ec (H\u00e0 Giang)] c\u00e2y to cao, d\u01b0\u1edbi 800m ( th\u1ecb x\u00e3 B\u1eafc C\u1ea1n ) Tr\u00fac s\u00e0o th\u01b0\u1eddng th\u1ea5p v\u00e0 nh\u1ecf.<\/p>\n

Th\u00e2n ng\u1ea7m b\u00f2 lan trong \u0111\u1ea5t \u1edf \u0111\u1ed9 s\u00e2u 0-30cm, \u1edf \u0111\u1ea5t d\u1ed1c th\u00e2n ng\u1ea7m b\u00f2 lan theo h\u01b0\u1edbng xu\u1ed1ng d\u1ed1c t\u1edbi 60%. Th\u00e2n ng\u1ea7m tu\u1ed5i 1-2 sinh th\u00e2n kh\u00ed sinh v\u00e0 th\u00e2n ng\u1ea7m m\u1edbi (\u00edt c\u00f3 th\u00e2n ng\u1ea7m tu\u1ed5i gi\u00e0 sinh m\u0103ng), c\u00f3 tr\u1eeb\u01a1ng h\u1ee3p th\u00e2n ng\u1ea7m v\u1ecdt ra kh\u1ecfi t\u1ea5ng \u0111\u1ea5t th\u00e0nh c\u00e2u kh\u00ed sinh nh\u01b0ng r\u1ea5t nh\u1ecf v\u00e0 y\u1ebfu.<\/p>\n

M\u1ea7m m\u0103ng tr\u00ean th\u00e2n ng\u1ea7m h\u00ecnh th\u00e0nh v\u00e0o kho\u1ea3ng th\u00e1ng 8 \u0111\u1ebfn th\u00e1ng 11. M\u1ed7i n\u0103m c\u00f3 2 v\u1ee5 m\u0103ng: V\u1ee5 m\u0103ng xu\u00e2n l\u00e0 ch\u00ednh – t\u1eeb cu\u1ed1i th\u00e1ng 2 \u0111\u1ebfn \u0111\u1ea7u th\u00e1ng 5, v\u1ee5 m\u0103ng thu l\u00e0 ph\u1ee5 – t\u1eeb cu\u1ed1i th\u00e1ng 8 \u0111\u1ebfn \u0111\u1ea7u th\u00e1ng 10. M\u0103ng \u0111\u1ea7u v\u1ee5 v\u00e0 cu\u1ed1i v\u1ee5 th\u01b0\u1eddng ch\u1ebft nhi\u1ec1u.<\/p>\n

S\u1ed1 c\u00e2y tr\u00ean 1 ha th\u01b0\u1eddng l\u00e0 15.000 c\u00e2y, c\u00f3 khi l\u00ean t\u1edbi 26.000 c\u00e2y. T\u1ef7 l\u1ec7 c\u00e2y \u1edf c\u00e1c c\u1ea5p tu\u1ed5i tu\u1ef3 thu\u1ed9c tr\u1ea1ng th\u00e1i r\u1eebng. Tu\u1ed5i th\u1ecd c\u1ee7a Tr\u00fac s\u00e0o kh\u00f4ng qu\u00e1 8 n\u0103m. Tr\u00fac s\u00e0o r\u1ee5ng l\u00e1 h\u00e0ng n\u0103m n\u00ean t\u00e1n l\u00e1 c\u00f3 nhi\u1ec1u c\u00e0nh th\u1ee9 c\u1ea5p.<\/p>\n

3. Ph\u00e2n b\u1ed1<\/strong><\/p>\n

C\u00f3 gi\u1ea3 thuy\u1ebft Tr\u00fac s\u00e0o \u0111\u01b0\u1ee3c \u0111\u1ed3ng b\u00e0o Dao l\u1ea5y gi\u1ed1ng t\u1eeb Trung Qu\u1ed1c , do du canh du c\u01b0 m\u00e0 tr\u1ed3ng lan r\u1ed9ng ra. \u0110\u1ed3ng b\u00e0o T\u1ea7y, N\u00f9ng \u0111\u00e3 l\u1ea5y gi\u1ed1ng Tr\u00fac s\u00e0o c\u1ee7a \u0111\u1ed3ng b\u00e0o Dao \u1edf v\u00f9ng cao v\u1ec1 tr\u1ed3ng v\u00e0 nh\u01b0 v\u1eady Tr\u00fac s\u00e0o \u0111\u00e3 t\u1eeb v\u00f9ng cao xu\u1ed1ng v\u00f9ng th\u1ea5p.<\/p>\n

Tr\u00fac s\u00e0o \u0111\u01b0\u1ee3c tr\u1ed3ng nhi\u1ec1u \u1edf Cao B\u1eb1ng, H\u00e0 Giang, c\u0169ng c\u00f3 tr\u1ed3ng \u1edf L\u1ea1ng S\u01a1n, B\u1eafc C\u1ea1n, Th\u00e1i nguy\u00ean, Qu\u1ea3ng Ninh. . .th\u01b0\u1eddng \u1edf \u0111\u1ed9 cao tr\u00ean 800m – v\u00f9ng \u0111\u1ed3ng b\u00e0o Dao, M\u00e8o, T\u00e0y, N\u00f9ng sinh s\u1ed1ng.<\/p>\n

4. Gi\u00e1 tr\u1ecb s\u1eed d\u1ee5ng<\/strong><\/p>\n

Th\u00e2n Tr\u00fac s\u00e0o th\u1eb3ng, tr\u00f2n, \u00f3ng l\u1ea1i d\u1ebbo, d\u1ec5 u\u1ed1n; \u0111\u01b0\u1ee3c gia c\u00f4ng ch\u1ebf bi\u1ebfn th\u00ec th\u00e2n Tr\u00fac s\u00e0o c\u00f3 m\u1ea7u v\u00e0ng \u0111\u1eb9p; v\u00ec v\u1eady , ng\u01b0\u1eddi ta th\u01b0\u1eddng d\u00f9ng Tr\u00fac s\u00e0o l\u00e0m b\u00e0n gh\u1ebf, g\u1eady tr\u01b0\u1ee3t tuy\u1ebft, s\u00e0o nh\u1ea9y, c\u1ea7n c\u00e2u. Ph\u1ea7n th\u1ecbt tr\u1eafng, m\u1ecbn (b\u00f3 m\u1ea1ch kh\u00f4ng th\u00f4 c\u1ee9ng) n\u00ean ng\u01b0\u1eddi ta d\u00f9ng l\u00e0m nan \u0111an m\u00e0nh, chi\u1ebfu ho\u1eb7c l\u00e0m th\u00e0nh m\u1ea3nh \u0111\u1ec3 k\u1ebft th\u1ea3m, chi\u1ebfu tr\u1ea3i gi\u01b0\u1eddng r\u1ea5t \u0111\u1eb9p. C\u0103n c\u1ee9 v\u00e0o m\u1ea7u s\u1eafc c\u1ee7a th\u00e2n, Tr\u00fac s\u00e0o c\u00f3 3 d\u1ea1ng: Tr\u00fac v\u00e0ng, Tr\u00fac xanh, Tr\u00fac m\u00e8o (tr\u00fac m\u1ed1c). \u0110\u1ec3 s\u1ea3n xu\u1ea5t m\u00e0nh, tr\u00fac xanh \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng h\u01a1n c\u1ea3 v\u00ec sau khi s\u1ea5y m\u00e0nh tr\u00fac b\u00f3ng h\u01a1n. Ng\u1ecdn Tr\u00fac s\u00e0o c\u00f3 nhi\u1ec1u c\u00e0nh n\u00ean th\u01b0\u1eddng d\u00f9ng l\u00e0m ch\u1ed5i \u0111\u1ec3 xu\u1ea5t kh\u1ea9u. T\u1ea5t c\u1ea3 c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c ch\u1ebf bi\u1ebfn t\u1eeb Tr\u00fac s\u00e0o kh\u00f4ng nh\u1eefng ti\u00eau th\u1ee5 trong n\u01b0\u1edbc m\u00e0 \u0111\u01b0\u1ee3c c\u00e1c n\u01b0\u1edbc r\u1ea5t \u01b0a chu\u1ed9ng, l\u00e0 ngu\u1ed3n h\u00e0ng xu\u1ea5t kh\u1ea9u quan tr\u1ecdng trong m\u1eb7t h\u00e0ng M\u00e2y tre n\u00f3i chung. V\u00e0o nh\u1eefng n\u0103m 70-80 Cao B\u1eb1ng, B\u1eafc C\u1ea1n \u0111\u1ea1t gi\u00e1 tr\u1ecb 2 tri\u1ec7u r\u00fap\/ n\u0103m h\u00e0ng Tr\u00fac xu\u1ea5t kh\u1ea9u sang Li\u00ean x\u00f4; nhi\u1ec1u m\u1eb7t h\u00e0ng \u0111\u1ea1t huy ch\u01b0\u01a1ng v\u00e0ng t\u1ea1i h\u1ed9i ch\u1ee3 trong n\u01b0\u1edbc v\u00e0 qu\u1ed1c t\u1ebf. C\u00f3 gia \u0111\u00ecnh tr\u1ed3ng Tr\u00fac h\u00e0ng n\u0103m thu ho\u1ea1ch 5-10 tri\u1ec7u \u0111\u1ed3ng. M\u0103ng Tr\u00fac s\u00e0o \u0103n ngon v\u00e0 ng\u1ecdt nh\u01b0ng n\u0103ng su\u1ea5t th\u1ea5p (m\u0103ng nh\u1ecf). C\u0169ng c\u00f3 th\u1ec3 d\u00f9ng Tr\u00fac s\u00e0o l\u00e0m nguy\u00ean li\u1ec7u gi\u1ea5y.<\/p>\n

5. K\u1ef9 thu\u1eadt kinh doanh.<\/strong><\/p>\n

5.1. G\u00e2y tr\u1ed3ng: <\/em><\/strong><\/p>\n

* Cho \u0111\u1ebfn nay gi\u1ed1ng tr\u1ed3ng c\u00f3 hi\u1ec7u qu\u1ea3 nh\u1ea5t v\u1eabn l\u00e0 m\u1ed9t \u0111o\u1ea1n th\u00e2n kh\u00ed sinh c\u00f3 mang \u0111o\u1ea1n th\u00e2n ng\u1ea7m 40-80cm; t\u1ed1t nh\u1ea5t l\u00e0 \u0111o\u1ea1n th\u00e2n kh\u00ed sinh c\u00f3 c\u00e0nh, l\u00e1 v\u00e0 th\u00e2n ng\u1ea7m \u1edf tu\u1ed5i 2; c\u0169ng c\u00f3 th\u1ec3 d\u00f9ng \u0111o\u1ea1n th\u00e2n ng\u1ea7m 1-2 tu\u1ed5i, kh\u00f4ng c\u00f3 \u0111o\u1ea1n th\u00e2n kh\u00ed sinh nh\u01b0ng t\u1ef7 l\u1ec7 s\u1ed1ng v\u00e0 kh\u1ea3 n\u0103ng ph\u00e1t tri\u1ec3n k\u00e9m h\u01a1n.<\/p>\n

* L\u1ee3i d\u1ee5ng vi\u1ec7c ph\u00e1t tri\u1ec3n c\u1ee7a th\u00e2n ng\u1ea7m c\u00f3 th\u1ec3 d\u1eabn d\u1ee5 \u0111\u1ec3 Tr\u00fac s\u00e0o lan nhanh ra xung quanh di\u1ec7n t\u00edch \u0111\u00e3 tr\u1ed3ng.<\/p>\n

* Nh\u1eefng n\u0103m \u0111\u1ea7u c\u00f3 th\u1ec3 tr\u1ed3ng xen c\u00e2y n\u00f4ng nghi\u1ec7p (ng\u00f4, \u0111\u1ed7 . . .)<\/p>\n

* C\u00f3 th\u1ec3 d\u00f9ng c\u00e2y H\u00f4ng (Paulownia fortunei<\/em>) tr\u1ed3ng h\u1ed7n giao v\u1edbi Tr\u00fac s\u00e0o.<\/p>\n

*Sau khi tr\u1ed3ng 3-4 n\u0103m c\u00f3 th\u1ec3 ch\u1eb7t nu\u00f4i d\u01b0\u1ee1ng; sau 7-8 n\u0103m c\u1ea7n s\u1edbi \u0111\u1ea5t; r\u1eebng 20-30 tu\u1ed5i c\u00f3 th\u1ec3 b\u00f3c b\u1edbt l\u1edbp th\u00e2n ng\u1ea7m gi\u00e0.<\/p>\n

5.2. Khai th\u00e1c:<\/em><\/strong><\/p>\n

Ph\u01b0\u01a1ng th\u1ee9c chung v\u1eabn l\u00e0 khai th\u00e1c ch\u1ecdn t\u1eebng c\u00e2y t\u1eeb tu\u1ed5i 4 tr\u1edf l\u00ean l\u00e0 t\u1ed1t nh\u1ea5t.<\/p>\n

6. Hi\u1ec7n tr\u1ea1ng s\u1ea3n xu\u1ea5t<\/strong><\/p>\n

Nhu c\u1ea7u d\u00f9ng Tr\u00fac s\u00e0o l\u00e0m nguy\u00ean li\u1ec7u s\u1ea3n xu\u1ea5t h\u00e0ng xu\u1ea5t kh\u1ea9u l\u00e0 r\u1ea5t l\u1edbn, v\u1edbi di\u1ec7n t\u00edch nh\u01b0 hi\u1ec7n nay kh\u00f4ng \u0111\u1ee7 cung c\u1ea5p; v\u00ec v\u1eady, nhi\u1ec1u n\u01a1i \u0111\u00e3 khai th\u00e1c l\u1ea1m d\u1ee5ng c\u1ea3 nh\u1eefng c\u00e2y non n\u00ean kh\u00f4ng \u0111\u1ea3m b\u1ea3o cho r\u1eebng t\u00e1i sinh. Cao B\u1eb1ng \u0111\u00e3 qui ho\u1ea1ch h\u00e0ng ng\u00e0n ha \u0111\u1ec3 tr\u1ed3ng Tr\u00fac, m\u1ee5c ti\u00eau ph\u1ea5n \u0111\u1ea5u \u0111\u1ebfn n\u0103m 2002 s\u1ea3n l\u01b0\u1ee3ng Tr\u00fac s\u00e0o h\u00e0ng n\u0103m \u0111\u1ea1t 30 tri\u1ec7u c\u00e2y c\u00e1c lo\u1ea1i.<\/p>\n

V\u1edbi mong mu\u1ed1n cung c\u1ea5p \u0111\u01b0\u1ee3c nhi\u1ec1u gi\u1ed1ng \u0111\u1ec3 \u0111\u1ea9y m\u1ea1nh tr\u1ed3ng Tr\u00fac S\u00e0o, nhi\u1ec1u nh\u00e0 khoa h\u1ecdc \u0111\u00e3 th\u0103m d\u00f2, t\u1ea1o gi\u1ed1ng b\u1eb1ng th\u00e2n kh\u00ed sinh, b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p nu\u00f4i c\u1ea5y m\u00f4 nh\u01b0ng \u0111\u1ebfn nay ch\u01b0a th\u00e0nh c\u00f4ng.<\/p>\n

C\u0169ng mong mu\u1ed1n \u0111\u1ec3 m\u1edf r\u1ed9ng v\u00f9ng tr\u1ed3ng Tr\u00fac, t\u1eeb 1996 \u0111\u1ebfn 1999 c\u00f3 \u0111\u1ec1 t\u00e0i nghi\u00ean c\u1ee9u di th\u1ef1c Tr\u00fac s\u00e0o t\u1eeb Cao B\u1eb1ng v\u1ec1 Ho\u00e0 B\u00ecnh, k\u1ebft qu\u1ea3 cho th\u1ea5y Tr\u00fac s\u00e0o tr\u1ed3ng \u1edf Ho\u00e0 B\u00ecnh sinh tr\u01b0\u1edfng k\u00e9m h\u01a1n \u1edf Cao B\u1eb1ng.<\/p>\n

So s\u00e1nh sinh tr\u01b0\u1edfng c\u1ee7a Tr\u00fac s\u00e0o \u1edf Cao B\u1eb1ng v\u00e0 Ho\u00e0 B\u00ecnh (\u0110inh V\u0103n T\u1ef1 – 1999)<\/p>\n\n\n\n\n\n
Tu\u1ed5i r\u1eebng<\/td>\nHo\u00e0 B\u00ecnh<\/td>\nCao B\u1eb1ng<\/td>\n<\/tr>\n
\u0110\u01b0\u1eddng k\u00ednh TB (cm)<\/td>\nChi\u1ec1u cao TB (m)<\/td>\n\u0110\u01b0\u1eddng k\u00ednh TB (cm)<\/td>\nChi\u1ec1u cao TB (m)<\/td>\n<\/tr>\n
1<\/p>\n

2<\/p>\n

3<\/td>\n

0,7<\/p>\n

1,5<\/p>\n

1,7<\/td>\n

0,68<\/p>\n

2,11<\/p>\n

3,05<\/td>\n

1,3<\/p>\n

1,8<\/p>\n

2,5<\/td>\n

1,24<\/p>\n

3,06<\/p>\n

3,57<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Trong ch\u01b0\u01a1ng tr\u00ecnh tr\u1ed3ng m\u1edbi 5 tri\u1ec7u ha r\u1eebng Tr\u00fac \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 c\u00e2y tr\u1ed3ng cho c\u00e1c v\u00f9ng \u0110\u00f4ng B\u1eafc, Trung t\u00e2m B\u1eafc b\u1ed9, T\u00e2y B\u1eafc.<\/p>\n

7. Khuy\u1ebfn ngh\u1ecb<\/strong><\/p>\n

– Tr\u00fac s\u00e0o l\u00e0 c\u00e2y tr\u1ed3ng c\u00f3 nhi\u1ec1u gi\u00e1 tr\u1ecb \u0111\u1ec3 xu\u1ea5t kh\u1ea9u v\u00e0 th\u00edch h\u1ee3p cho v\u00f9ng cao c\u00f3 d\u00e2n t\u1ed9c \u00edt ng\u01b0\u1eddi \u1edf c\u00e1c v\u00f9ng \u0110\u00f4ng b\u1eafc, Trung t\u00e2m b\u1eafc b\u1ed9 v\u00e0 T\u00e2y b\u1eafc; n\u00ean khuy\u1ebfn kh\u00edch \u0111\u1ed3ng b\u00e0o n\u01a1i \u0111\u00e2y ph\u00e1t tri\u1ec3n tr\u1ed3ng Tr\u00fac s\u00e0o m\u1edbi \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u trong n\u01b0\u1edbc v\u00e0 xu\u1ea5t kh\u1ea9u, t\u0103ng thu nh\u1eadp cho \u0111\u1ed3ng b\u00e0o, \u1ed5n \u0111\u1ecbnh s\u1ea3n xu\u1ea5t g\u00f3p ph\u1ea7n xo\u00e1 \u0111\u00f3i gi\u1ea3m ngh\u00e8o.<\/p>\n

– Tr\u00fac s\u00e0o tr\u1ed3ng \u1edf v\u00f9ng cao c\u00f3 kh\u00f3 kh\u0103n nhi\u1ec1u m\u1eb7t nh\u1ea5t l\u00e0 \u0111i l\u1ea1i, c\u1ea7n c\u00f3 \u0111\u1ea7u t\u01b0 tho\u1ea3 \u0111\u00e1ng v\u00e0 khuy\u1ebfn kh\u00edch c\u00e1n b\u1ed9 k\u1ef9 thu\u1eadt ch\u1ec9 \u0111\u1ea1o s\u1ea3n xu\u1ea5t.<\/p>\n

– \u0110\u1ec3 ph\u00e1t tri\u1ec3n tr\u1ed3ng Tr\u00fac s\u00e0o c\u1ea7n \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng nghi\u00ean c\u1ee9u nhi\u1ec1u m\u1eb7t, trong \u0111\u00f3 gi\u1ed1ng l\u00e0 kh\u00e2u kh\u00f3 kh\u0103n nh\u1ea5t nh\u01b0ng v\u1eeba qua nghi\u00ean c\u1ee9u v\u1ec1 t\u1ea1o gi\u1ed1ng ch\u01b0a \u0111\u1ea1t k\u1ebft qu\u1ea3 mong mu\u1ed1n, v\u1eady c\u1ea7n t\u0103ng c\u01b0\u1eddng h\u1ee3p t\u00e1c v\u00e0 h\u1ecdc t\u1eadp c\u00e1c n\u01b0\u1edbc (g\u1ea7n nh\u1ea5t l\u00e0 Trung Qu\u1ed1c) m\u1edbi mong gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/p>\n

T\u00f3m t\u1eaft<\/h1>\n

Tr\u00fac s\u00e0o l\u00e0 c\u00e2y tr\u1ed3ng c\u00f3 gi\u00e1 tr\u1ecb l\u00e0m h\u00e0ng xu\u1ea5t kh\u1ea9u. Tr\u00fac s\u00e0o tr\u1ed3ng \u1edf v\u00f9ng cao-n\u01a1i \u0111\u1ed3ng b\u00e0o \u00edt ng\u01b0\u1eddi sinh s\u1ed1ng; khuy\u1ebfn kh\u00edch \u0111\u1ed3ng b\u00e0o n\u01a1i \u0111\u00e2y tr\u1ed3ng Tr\u00fac s\u00e0o s\u1ebd g\u00f3p ph\u1ea7n xo\u00e1 \u0111\u00f3i gi\u1ea3m ngh\u00e8o, \u1ed5n \u0111\u1ecbnh \u0111\u1eddi s\u1ed1ng.<\/p>\n

\u0110\u1ec3 ph\u00e1t tri\u1ec3n tr\u1ed3ng Tr\u00fac s\u00e0o c\u00f3 nhi\u1ec1u v\u1ea5n \u0111\u1ec1 c\u1ea7n \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u gi\u1ea3i quy\u1ebft.<\/p>\n

T\u00e0i li\u1ec7u tham kh\u1ea3o<\/em><\/h1>\n

1. B\u1ed9 l\u00e2m nghi\u1ec7p – Th\u00f4ng tin chuy\u00ean \u0111\u1ec1 khoa h\u1ecdc k\u1ef9 thu\u1eadt v\u00e0 kinh t\u1ebf s\u1ed1 2 n\u0103m 1985.<\/p>\n

2. \u0110inh V\u0103n T\u1ef1, 1999 – Nghi\u00ean c\u1ee9u nh\u00e2n gi\u1ed1ng v\u00e0 di th\u1ef1c c\u00e2y Tr\u00fac s\u00e0o t\u1eeb Cao B\u1eb1ng v\u1ec1 Ho\u00e0 B\u00ecnh (B\u00e1o c\u00e1o khoa h\u1ecdc).3. Tr\u1ea7n \u0110\u1ee9c H\u1eadu , 1973 – M\u1ed9t s\u1ed1 \u0111\u1eb7c t\u00ednh sinh v\u1eadt h\u1ecdc c\u1ee7a c\u00e2y Tr\u00fac \u1edf Vi\u1ec7t b\u1eafc (b\u00e1o c\u00e1o khoa h\u1ecdc)<\/p>\n","protected":false},"excerpt":{"rendered":"

Trúc sào là lo\u1ea1i tre không gai, lá nh\u1ecf, m\u1ecdc phân tán t\u1eebng cây \u0111\u01a1n \u0111\u1ed9c – thân ng\u1ea7m d\u1ea1ng roi, thân khí sinh \u0111\u1ee9ng th\u1eb3ng – không có ng\u1ecdn cong r\u1ee7. Kích th\u01b0\u1edbc cây trung bình: Thân tre cao 10m, \u0111\u01b0\u1eddng kính 5cm, lóng dài 25cm, vách thân d\u1ea7y 0,6cm, thân cây t\u01b0\u01a1i n\u1eb7ng 6kg (Theo tài li\u1ec7u c\u1ee7a Trung Qu\u1ed1c thì Trúc sào \u1edf Trung Qu\u1ed1c có \u0111\u01b0\u1eddng kính t\u1edbi 18cm). <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":[],"categories":[81],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8608"}],"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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=8608"}],"version-history":[{"count":2,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8608\/revisions"}],"predecessor-version":[{"id":19293,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8608\/revisions\/19293"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=8608"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=8608"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=8608"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}