Nguy\u1ec5n Ho\u00e0ng Ngh\u0129a <\/p>\n
Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p VN <\/p>\n
I. M\u1edf \u0111\u1ea7u.<\/strong> <\/p>\n V\u1edbi nh\u1eefng c\u1ed1 g\u1eafng l\u1edbn lao v\u1ec1 ch\u1ecdn gi\u1ed1ng v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p th\u00e2m canh m\u00e0 n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng \u0111\u00e3 t\u0103ng l\u00ean v\u01b0\u1ee3t b\u1ef1c, nh\u1ea5t l\u00e0 \u0111\u1ed1i v\u1edbi b\u1ea1ch \u0111\u00e0n (Eucalyptus) \u1edf nhi\u1ec1u n\u01b0\u1edbc tr\u00ean th\u1ebf gi\u1edbi trong nh\u1eefng n\u0103m v\u1eeba qua. Qua c\u00e1c s\u1ed1 li\u1ec7u t\u1ed5ng k\u1ebft c\u1ee7a Braxin th\u00ec c\u00f3 th\u1ec3 th\u1ea5y n\u0103ng su\u1ea5t ti\u1ec1m n\u0103ng c\u1ee7a c\u00e1c r\u1eebng tr\u1ed3ng b\u1ea1ch \u0111\u00e0n \u0111\u00e3 t\u0103ng tr\u00ean 5% m\u1ed7i n\u0103m qua m\u1ed9t chu k\u1ef3 d\u00e0i 30 n\u0103m \u1edf n\u01b0\u1edbc n\u00e0y. <\/p>\n V\u00e0o n\u0103m 1991, Campinhos \u0111\u00e3 ph\u00e1c th\u1ea3o nh\u1eefng b\u01b0\u1edbc t\u0103ng n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng b\u1ea1ch \u0111\u00e0n \u1edf Braxin trong su\u1ed1t 30 n\u0103m nh\u01b0 sau : <\/p>\n 1960 – 1965 : H\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng di truy\u1ec1n th\u1ea5p, n\u0103ng su\u1ea5t ch\u1ec9 \u0111\u1ea1t : 13 m3\/ha\/n\u0103m. <\/p>\n 1966 – 1970 : H\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng di truy\u1ec1n th\u1ea5p, c\u00f3 s\u1eed d\u1ee5ng ph\u00e2n b\u00f3n : 17 m3\/ha\/n\u0103m. <\/p>\n 1971 – 1975 : H\u1ea1t thu\u1ea7n khi\u1ebft di truy\u1ec1n (ch\u01b0a c\u1ea3i thi\u1ec7n); b\u00f3n ph\u00e2n : 22 m3\/ha\/n\u0103m. <\/p>\n 1976 – 1980 : H\u1ea1t t\u1eeb r\u1eebng gi\u1ed1ng \u0111\u01b0\u1ee3c ch\u1ecdn l\u1ecdc, c\u00f3 b\u00f3n ph\u00e2n : 35 m3\/ha\/n\u0103m. <\/p>\n 1981 – 1985 : H\u1ea1t \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n v\u00e0 nh\u00e2n gi\u1ed1ng b\u1eb1ng hom : 45 m3\/ha\/n\u0103m. <\/p>\n 1986 – 1990 : Ti\u1ebfp t\u1ee5c ch\u1ecdn l\u1ecdc v\u00e0 nh\u00e2n gi\u1ed1ng b\u1eb1ng hom : 60 m3\/ha\/n\u0103m. <\/p>\n Nh\u01b0 v\u1eady l\u1ee3i \u00edch c\u1ee7a c\u1ea3i thi\u1ec7n gi\u1ed1ng (bao g\u1ed3m ch\u1ecdn gi\u1ed1ng v\u00e0 th\u00e2m canh) l\u00e0 r\u1ea5t r\u00f5 r\u00e0ng v\u00e0 \u0111\u00e1ng \u0111\u01b0\u1ee3c \u0111\u1ea7u t\u01b0, m\u1eb7c d\u1ea7u th\u1ebf c\u00f4ng t\u00e1c ch\u1ecdn gi\u1ed1ng c\u00e2y r\u1eebng c\u0169ng ch\u1ee9a trong n\u00f3 v\u00f4 s\u1ed1 ngh\u1ecbch l\u00fd v\u00e0 nh\u1eefng \u0111i\u1ec1u r\u1eafc r\u1ed1i. <\/p>\n II. Nh\u1eefng ngh\u1ecbch l\u00fd c\u01a1 b\u1ea3n.<\/strong> <\/p>\n 1. Ngh\u1ecbch l\u00fd th\u1ee9 nh\u1ea5t : Mu\u1ed1n c\u00f3 gi\u1ed1ng t\u1ed1t nh\u01b0ng kh\u00f4ng mu\u1ed1n \u0111\u1ea7u t\u01b0 nghi\u00ean c\u1ee9u.<\/strong><\/em> <\/p>\n \u0110i\u1ec1u d\u1ec5 nh\u1eadn th\u1ea5y l\u00e0 trong nhi\u1ec1u n\u0103m qua, r\u1eebng tr\u1ed3ng c\u1ee7a ta n\u0103ng su\u1ea5t th\u01b0\u1eddng th\u1ea5p; ch\u01b0a bi\u1ebft k\u1ebft h\u1ee3p vi\u1ec7c ch\u1ecdn lo\u00e0i theo l\u1eadp \u0111\u1ecba v\u00e0 ch\u1ecdn l\u1eadp \u0111\u1ecba theo m\u1ee5c ti\u00eau g\u00e2y tr\u1ed3ng; thi\u1ebfu th\u00f4ng tin v\u1ec1 k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u t\u1eeb c\u00e1c n\u01b0\u1edbc v\u00e0 c\u00e1c v\u00f9ng kh\u00e1c nhau. Trong gi\u00e1 th\u00e0nh tr\u1ed3ng r\u1eebng n\u00f3i chung, chi ph\u00ed cho gi\u1ed1ng ch\u1ec9 chi\u1ebfm m\u1ed9t ph\u1ea7n r\u1ea5t khi\u00eam t\u1ed1n, \u0111\u00f4i khi ch\u1ec9 l\u00e0 5 – 10% ho\u1eb7c th\u1ea5p h\u01a1n. Gi\u1ed1ng t\u1ed1t c\u00f3 gi\u00e1 c\u1ea3 cao h\u01a1n song gi\u00e1 tr\u1ecb c\u1ee7a n\u00f3 l\u00e0 kh\u00f4ng th\u1ec3 ph\u1ee7 nh\u1eadn v\u00e0 gi\u1ed1ng t\u1ed1t c\u0169ng \u0111\u00e3 tr\u1edf th\u00e0nh nhu c\u1ea7u thi\u1ebft y\u1ebfu \u0111\u1ed1i v\u1edbi ph\u00e1t tri\u1ec3n r\u1eebng tr\u1ed3ng. Th\u1ebf nh\u01b0ng trong th\u1eddi gian v\u1eeba qua, nhi\u1ec1u c\u01a1 s\u1edf kh\u00f4ng quan t\u00e2m \u0111\u1ebfn gi\u1ed1ng t\u1ed1t m\u00e0 ch\u1ec9 quan t\u00e2m \u0111\u1ebfn gi\u1ed1ng gi\u00e1 r\u1ebb, gi\u1ed1ng kh\u00f4ng r\u00f5 ngu\u1ed3n g\u1ed1c n\u00ean tr\u1ed3ng th\u00e0nh c\u00e2y m\u00e0 kh\u00f4ng th\u00e0nh r\u1eebng; \u0111\u1ea7u t\u01b0 cho nghi\u00ean c\u1ee9u gi\u1ed1ng \u0111\u01b0\u1ee3c ph\u00f3 m\u1eb7c cho Nh\u00e0 n\u01b0\u1edbc v\u00e0 m\u1ed9t s\u1ed1 c\u01a1 quan nghi\u00ean c\u1ee9u. Mu\u1ed1n c\u00f3 gi\u1ed1ng cao s\u1ea3n ph\u1ea3i bi\u1ebft \u0111\u1ea7u t\u01b0 \u0111\u1ee7 l\u1edbn cho nghi\u00ean c\u1ee9u v\u00e0 kh\u1ea3o nghi\u1ec7m. Nhi\u1ec1u lo\u00e0i v\u00e0 xu\u1ea5t x\u1ee9 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o kh\u1ea3o nghi\u1ec7m \u1edf n\u01b0\u1edbc ta \u0111\u00e3 cho th\u1ea5y ch\u00fang kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng th\u00edch nghi v\u00e0 b\u1ecb lo\u1ea1i b\u1ecf ngay t\u1eeb nh\u1eefng n\u0103m th\u00e1ng \u0111\u1ea7u ti\u00ean v\u00e0 kho\u1ea3n ti\u1ec1n b\u1ecf ra cho c\u00e1c kh\u1ea3o nghi\u1ec7m \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 nh\u1ecf. Ch\u1ec9 c\u1ea7n b\u1ed1 tr\u00ed 100 ha kh\u1ea3o nghi\u1ec7m v\u1edbi th\u1eddi gi\u00e1 10 tri\u1ec7u \u0111\/ha l\u00e0 \u0111\u00e3 t\u1ed1n k\u00e9m \u0111\u1ebfn 1 t\u1ef7 \u0111\u1ed3ng. Ri\u00eang ti\u1ec1n nh\u1eadp gi\u1ed1ng c\u0169ng l\u00e0 h\u00e0ng tr\u0103m, \u0111\u00f4i khi c\u1ea3 ngh\u00ecn \u0111\u00f4-la cho m\u1ed7i kg h\u1ea1t gi\u1ed1ng chu\u1ea9n. H\u00e0ng ch\u1ee5c lo\u00e0i th\u00f4ng (Pinus) \u0111\u00e3 \u0111\u01b0\u1ee3c kh\u1ea3o nghi\u1ec7m v\u00e0 lo\u1ea1i b\u1ecf nh\u01b0 P. tropicalis, P. pinaster, P. occidentalis, P. taeda, P. radiata, P. elliottii v.v. Ch\u1ec9 c\u00f3 P. caribaea v\u1edbi 3 bi\u1ebfn ch\u1ee7ng l\u00e0 var. hondurensis, var. bahamensis v\u00e0 var. caribaea v\u00e0 trong m\u1ed9t ch\u1eebng m\u1ef1c n\u00e0o \u0111\u00f3 l\u00e0 lo\u00e0i P. oocarpa l\u00e0 r\u1ea5t c\u00f3 tri\u1ec3n v\u1ecdng. T\u00ean tu\u1ed5i c\u1ee7a c\u00e1c lo\u00e0i v\u00e0 xu\u1ea5t x\u1ee9 y\u1ebfu k\u00e9m ch\u1ec9 c\u00f2n t\u00ecm th\u1ea5y trong c\u00e1c b\u00e1o c\u00e1o khoa h\u1ecdc chuy\u00ean \u0111\u1ec1 m\u00e0 th\u00f4i. T\u1eeb nh\u1eefng n\u0103m 1950 \u0111\u1ebfn nay, n\u01b0\u1edbc ta \u0111\u00e3 kh\u1ea3o nghi\u1ec7m v\u00e0 tr\u1ed3ng th\u1eed tr\u00ean 50 lo\u00e0i b\u1ea1ch \u0111\u00e0n (Eucalyptus) song ch\u1ec9 c\u00f3 g\u1ea7n ch\u1ee5c lo\u00e0i c\u00f3 tri\u1ec3n v\u1ecdng, \u0111\u00f3 l\u00e0 E. camaldulensis, E. tereticornis, E. urophylla, E. brassiana, E. pellita, E cloeziana, E. exserta cho v\u00f9ng th\u1ea5p, c\u00f2n E. grandis\/E. saligna v\u00e0 E. microcorys cho v\u00f9ng cao. T\u1eeb n\u0103m 1985 tr\u1edf l\u1ea1i \u0111\u00e2y, ri\u00eang Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p \u0111\u00e3 th\u1eed nghi\u1ec7m 112 xu\u1ea5t x\u1ee9 c\u1ee7a 15 lo\u00e0i b\u1ea1ch \u0111\u00e0n trong \u0111\u00f3 E. camaldulensis c\u00f3 49 xu\u1ea5t x\u1ee9 v\u00e0 E. tereticornis c\u00f3 21 xu\u1ea5t x\u1ee9, song c\u0169ng ch\u1ec9 t\u00ecm \u0111\u01b0\u1ee3c 3 – 5 xu\u1ea5t x\u1ee9 c\u00f3 tri\u1ec3n v\u1ecdng cho m\u1ed7i lo\u00e0i. Kh\u1ea3o nghi\u1ec7m v\u1edbi c\u00e0ng nhi\u1ec1u lo\u00e0i v\u00e0 xu\u1ea5t x\u1ee9, tr\u00ean c\u00e0ng nhi\u1ec1u d\u1ea1ng l\u1eadp \u0111\u1ecba c\u1ee7a c\u00e0ng nhi\u1ec1u v\u00f9ng sinh th\u00e1i th\u00ec k\u1ebft qu\u1ea3 c\u00e0ng \u0111\u00e1ng tin c\u1eady. B\u1ecf qua kh\u1ea3o nghi\u1ec7m \u0111\u1ec3 \u0111\u01b0a v\u00e0o g\u00e2y tr\u1ed3ng \u0111\u00e3 t\u1eebng c\u00f3 nh\u1eefng b\u00e0i h\u1ecdc cay \u0111\u1eafng, \u0111\u00f3 l\u00e0 h\u00e0ng ngh\u00ecn ha r\u1eebng tr\u1ed3ng th\u00f4ng P. silvestris xu\u1ea5t x\u1ee9 Ph\u00e1p \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng \u1edf Hungary v\u00e0 h\u00e0ng ngh\u00ecn ha th\u00f4ng P. silvestris kh\u00f4ng r\u00f5 ngu\u1ed3n g\u1ed1c \u0111\u01b0\u1ee3c tr\u1ed3ng \u1edf Hoa K\u1ef3 v\u00e0o nh\u1eefng n\u0103m 1930 \u0111\u00e3 kh\u00f4ng t\u1ea1o th\u00e0nh r\u1eebng nh\u01b0 mong mu\u1ed1n. Kho\u1ea3ng 30 ngh\u00ecn ha r\u1eebng th\u00f4ng P. ponderosa \u0111\u00e3 \u0111\u01b0\u1ee3c tr\u1ed3ng \u1edf New Zealand c\u0169ng \u0111\u00e3 t\u1eebng c\u00f3 s\u1ed1 ph\u1eadn t\u01b0\u01a1ng t\u1ef1. Ch\u1ec9 t\u00ednh chi ph\u00ed cho x\u00e2y d\u1ef1ng r\u1eebng, b\u1ea3o v\u1ec7 v\u00e0 ph\u00e1 ch\u00fang \u0111i c\u0169ng cho ch\u00fang ta m\u1ed9t kho\u1ea3n \u0111\u1ea7u t\u01b0 \u0111\u00e1ng suy ngh\u0129. Gi\u00e1 nh\u01b0 ng\u01b0\u1eddi ta ch\u1ec9 c\u1ea7n \u0111\u1ea7u t\u01b0 10-20 ha kh\u1ea3o nghi\u1ec7m th\u00ec \u0111\u00e2u \u0111\u1ebfn n\u1ed7i nh\u01b0 v\u1eady. <\/p>\n 2. Ngh\u1ecbch l\u00fd th\u1ee9 hai : \u0110\u1eebng v\u1ed9i tin v\u00e0o nh\u1eefng k\u1ebft qu\u1ea3 qu\u00e1 s\u1edbm.<\/strong><\/em> <\/p>\n “Th\u00e0nh c\u00f4ng giai \u0111o\u1ea1n \u0111\u1ea7u ch\u01b0a ch\u1eafc \u0111\u00e3 tr\u00e1nh kh\u1ecfi th\u1ea5t b\u1ea1i sau n\u00e0y” \u0111\u01b0\u1ee3c coi l\u00e0 c\u00e2u ch\u00e2m ng\u00f4n cho c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u v\u00e0 s\u1ea3n xu\u1ea5t gi\u1ed1ng. \u0110\u00e2y c\u0169ng l\u00e0 tr\u1edf ng\u1ea1i kh\u00f3 kh\u1eafc ph\u1ee5c nh\u1ea5t v\u00e0 xu\u1ea5t hi\u1ec7n \u1edf nhi\u1ec1u d\u1ea1ng ph\u1ee9c t\u1ea1p, kh\u00f3 ti\u00ean li\u1ec7u. B\u1ea1ch \u0111\u00e0n tr\u1eafng \u1edf n\u01b0\u1edbc ta sinh tr\u01b0\u1edfng r\u1ea5t t\u1ed1t trong 2- 3 n\u0103m \u0111\u1ea7u, song do nhi\u1ec1u l\u00fd do (xu\u1ea5t x\u1ee9 kh\u00f4ng ph\u00f9 h\u1ee3p, l\u1eadp \u0111\u1ecba kh\u00f4ng \u0111\u00fang ?) m\u00e0 \u1edf nhi\u1ec1u n\u01a1i, ch\u00fang ch\u1eadm ho\u1eb7c ng\u1eebng sinh tr\u01b0\u1edfng trong nh\u1eefng n\u0103m sau v\u00e0 t\u1ea1o n\u00ean nh\u1eefng nh\u1eefng \u0111\u1ed3i b\u1ea1ch \u0111\u00e0n g\u1ed3m to\u00e0n c\u00e2y tr\u00f4ng nh\u01b0 nh\u1eefng c\u1ea7n c\u00e2u c\u00e1 m\u00e0 kh\u00f4ng bao gi\u1edd tr\u1edf th\u00e0nh r\u1eebng kinh t\u1ebf. \u0110\u00f4i khi c\u00e2y c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng v\u00e0 t\u1ed1c \u0111\u1ed9 sinh tr\u01b0\u1edfng cao nh\u01b0ng g\u1ed7 l\u1ea1i ho\u00e0n to\u00e0n kh\u00f4ng th\u00edch h\u1ee3p cho m\u1ee5c ti\u00eau ban \u0111\u1ea7u. Ch\u1eb3ng h\u1ea1n \u1edf v\u00f9ng ven bi\u1ec3n Nam Phi, th\u00f4ng P. caribaea t\u1ea1o n\u00ean g\u1ed7 c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang r\u1ea5t th\u1ea5p kh\u00f4ng \u0111\u1ea1t y\u00eau c\u1ea7u cho s\u1ea3n xu\u1ea5t gi\u1ea5y v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m kh\u00e1c. Song c\u00f3 l\u1ebd ph\u1ee9c t\u1ea1p nh\u1ea5t v\u00e0 g\u00e2y h\u1ea1i l\u1edbn nh\u1ea5t v\u1eabn l\u00e0 vi\u1ec7c t\u1ea5n c\u00f4ng b\u1ea5t ng\u1edd c\u1ee7a s\u00e2u b\u1ec7nh h\u1ea1i v\u00e0o c\u00e1c r\u1eebng tr\u1ed3ng \u0111ang b\u1eebng b\u1eebng s\u1ee9c s\u1ed1ng v\u00e0 \u0111\u1ea7y tri\u1ec3n v\u1ecdng. C\u00e1c r\u1eebng tr\u1ed3ng th\u00f4ng P. radiata \u0111\u1ea7y h\u1ee9a h\u1eb9n \u1edf Braxin v\u00e0 Nam Phi \u0111\u00e3 b\u1ecb b\u1ec7nh Dothistroma t\u1ea5n c\u00f4ng v\u00e0o tu\u1ed5i th\u1ee9 n\u0103m v\u00e0 t\u1ed5n th\u1ea5t l\u1edbn \u0111\u00e3 l\u00e0m cho ng\u01b0\u1eddi ta kh\u00f4ng d\u00e1m tr\u1ed3ng lo\u00e0i c\u00e2y n\u00e0y \u1edf v\u00f9ng kh\u00ed h\u1eadu c\u00f3 m\u00f9a h\u00e8 \u1ea5m \u1ea9m v\u00ec Dothistroma r\u1ea5t \u01b0a th\u00edch lo\u1ea1i kh\u00ed h\u1eadu n\u00e0y. T\u1ea1i v\u00f9ng Minas Gerais, Braxin c\u00f3 m\u1ed9t lo\u1ea1i b\u1ec7nh \u0111\u00e3 t\u1ea5n c\u00f4ng c\u00e2y non 2 – 3 tu\u1ed5i c\u1ee7a m\u1ed9t l\u00f4 h\u1ea1t b\u1ea1ch \u0111\u00e0n E. grandis m\u00e0 h\u1eadu qu\u1ea3 l\u00e0 c\u00e2y ch\u1ebft ho\u1eb7c sinh tr\u01b0\u1edfng b\u1ecb h\u1ea1n ch\u1ebf \u0111\u00e1ng k\u1ec3. Trong nh\u1eefng n\u0103m 1980, keo d\u1eadu kh\u1ed5ng l\u1ed3 (Leucaena leucocephala) \u0111\u01b0\u1ee3c coi nh\u01b0 l\u00e0 lo\u00e0i c\u00e2y l\u00fd t\u01b0\u1edfng c\u1ee7a v\u00f9ng \u0110\u00f4ng Nam \u00e1 v\u00e0 ng\u01b0\u1eddi ta \u0111ua nhau tr\u1ed3ng \u1edf kh\u1eafp m\u1ecdi n\u01a1i. \u0110\u1ea7u nh\u1eefng n\u0103m 1990, lo\u00e0i c\u00e2y n\u00e0y b\u1ecb r\u1ec7p t\u1ea5n c\u00f4ng \u1edf ch\u1ed3i v\u00e0 l\u00e1 non v\u00e0 l\u00e0m \u0111au \u0111\u1ea7u nh\u1eefng nh\u00e0 tr\u1ed3ng r\u1eebng. C\u00e1c nghi\u00ean c\u1ee9u hi\u1ec7n nay l\u00e0 t\u1ea1o c\u00e2y lai kh\u00e1ng b\u1ec7nh, nh\u00e2n gi\u1ed1ng hom \u0111\u1ec3 \u0111\u1ea9y m\u1ea1nh v\u00e0o s\u1ea3n xu\u1ea5t l\u00e0 m\u1ed9t h\u01b0\u1edbng \u0111i h\u1ee3p y\u00eau c\u1ea7u c\u1ee7a s\u1ea3n xu\u1ea5t. \u0110\u1ea7u nh\u1eefng n\u0103m 1980, sau m\u1ed9t lo\u1ea1t c\u00e1c kh\u1ea3o nghi\u1ec7m, m\u1ed9t s\u1ed1 xu\u1ea5t x\u1ee9 b\u1ea1ch \u0111\u00e0n tr\u1eafng \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o s\u1ea3n xu\u1ea5t \u0111\u1ea1i tr\u00e0 m\u00e0 n\u1ed5i b\u1eadt l\u00e0 xu\u1ea5t x\u1ee9 Petford. Song t\u1eeb cu\u1ed1i nh\u1eefng n\u0103m 1980, n\u1ea5m b\u1ec7nh b\u1eaft \u0111\u1ea7u xu\u1ea5t hi\u1ec7n g\u00e2y h\u1ea1i cho xu\u1ea5t x\u1ee9 n\u00e0y \u1edf c\u00e1c t\u1ec9nh ph\u00eda Nam v\u00e0 mi\u1ec1n Trung. \u0110\u00e2y c\u0169ng l\u00e0 \u0111i\u1ec1u ngo\u00e0i mong \u0111\u1ee3i c\u1ee7a c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u m\u00e0 m\u1ed9t trong nh\u1eefng l\u00fd do ch\u00ednh l\u00e0 vi\u1ec7c ch\u00fang ta \u0111\u00e3 \u1ed3 \u1ea1t nh\u1eadp h\u1ea1t v\u00e0 \u0111\u01b0a tr\u1ed3ng tr\u00e0n lan ch\u1ec9 m\u1ed9t xu\u1ea5t x\u1ee9 tr\u00ean ph\u1ea1m vi c\u1ea3 n\u01b0\u1edbc, m\u1eb7c d\u00f9 nghi\u00ean c\u1ee9u \u0111\u00e3 \u0111\u01b0a ra danh s\u00e1ch c\u1ee7a \u00edt nh\u1ea5t 3 xu\u1ea5t x\u1ee9 c\u00f3 tri\u1ec3n v\u1ecdng c\u1ee7a lo\u00e0i n\u00e0y. Vi\u1ec7c quan t\u00e2m \u0111\u1ebfn s\u00e2u b\u1ec7nh h\u1ea1i khi m\u1edf r\u1ed9ng r\u1eebng tr\u1ed3ng t\u1edbi h\u00e0ng ch\u1ee5c, h\u00e0ng tr\u0103m ngh\u00eca ha l\u00e0 m\u1ed9t \u0111i\u1ec1u c\u1ea5p thi\u1ebft. Ngay \u0111\u1ed1i v\u1edbi tr\u00e1m tr\u1eafng (Canarium album), m\u1ed9t lo\u00e0i c\u00e2y b\u1ea3n \u0111\u1ecba c\u00f3 ti\u1ec1m n\u0103ng cho nguy\u00ean li\u1ec7u g\u1ed7 b\u00f3c l\u1ea1ng, c\u0169ng b\u1ecb h\u1ea1n ch\u1ebf b\u1edfi s\u00e2u \u0111\u1ee5c ng\u1ecdn khi \u0111\u01b0\u1ee3c tr\u1ed3ng t\u1eadp trung. Lo\u00e0i th\u00f4ng ba l\u00e1 (P. kesyia) b\u1ea3n \u0111\u1ecba \u1edf \u0110\u00e0 L\u1ea1t, L\u00e2m \u0110\u1ed3ng c\u0169ng \u0111ang \u0111\u1ee9ng tr\u01b0\u1edbc nguy c\u01a1 b\u1ecb tuy\u1ebfn tr\u00f9ng g\u00e2y h\u1ea1i nh\u01b0 \u0111ang x\u1ea3y ra n\u1eb7ng n\u1ec1 \u1edf Nh\u1eadt B\u1ea3n v\u00e0 Trung Qu\u1ed1c. \u0110i\u1ec1u \u0111\u00f3 ch\u1ec9 ch\u1ee9ng t\u1ecf ch\u1ecdn gi\u1ed1ng v\u00e0 kh\u1ea3o nghi\u1ec7m gi\u1ed1ng l\u00e0 c\u1ea7n thi\u1ebft v\u00e0 ph\u1ea3i \u0111\u01b0\u1ee3c coi l\u00e0 c\u00f4ng vi\u1ec7c li\u00ean t\u1ee5c, l\u00e2u d\u00e0i. <\/p>\n 3. Ngh\u1ecbch l\u00fd th\u1ee9 ba : Mu\u1ed1n r\u1eebng t\u1ed1t nh\u01b0ng kh\u00f4ng ch\u1ecbu \u0111\u1ea7u t\u01b0 l\u1edbn cho tr\u1ed3ng r\u1eebng.<\/strong><\/em> <\/p>\n Do c\u00f3 s\u1ee9c s\u1ea3n xu\u1ea5t tr\u00ean m\u1ed9t \u0111\u01a1n v\u1ecb di\u1ec7n t\u00edch cao h\u01a1n n\u00ean gi\u1ed1ng t\u1ed1t \u0111\u00f2i h\u1ecfi l\u1eadp \u0111\u1ecba cung c\u1ea5p ch\u1ea5t dinh d\u01b0\u1ee1ng v\u00e0 n\u01b0\u1edbc nhi\u1ec1u h\u01a1n \u0111\u1ec3 tho\u1ea3 m\u00e3n nhu c\u1ea7u. Th\u00e2m canh cao h\u01a1n \u0111\u1ed3ng ngh\u0129a v\u1edbi chu k\u1ef3 ng\u1eafn l\u1ea1i, \u0111\u1ea5t \u0111ai b\u1ecb quay v\u00f2ng nhanh h\u01a1n, l\u01b0\u1ee3ng sinh kh\u1ed1i b\u1ecb khai th\u00e1c h\u1ebft l\u00e0m cho dinh d\u01b0\u1ee1ng trong \u0111\u1ea5t b\u1ecb m\u1ea5t nhi\u1ec1u h\u01a1n v.v. C\u00e1c nghi\u00ean c\u1ee9u \u1edf Braxin cho th\u1ea5y khi khai th\u00e1c, con ng\u01b0\u1eddi \u0111\u00e3 mang \u0111i m\u1ed9t l\u01b0\u1ee3ng ch\u1ea5t dinh d\u01b0\u1ee1ng m\u00e0 c\u00e2y h\u00fat t\u1eeb \u0111\u1ea5t, n\u00ean v\u1edbi chu k\u1ef3 8 – 12 n\u0103m cho b\u1ea1ch \u0111\u00e0n, ri\u00eang l\u01b0\u1ee3ng Kali \u0111\u00e3 \u0111\u01b0\u1ee3c h\u1ecd b\u00f3n \u0111\u1ebfn 100 kg\/ha \u1edf lu\u00e2n k\u1ef3 th\u1ee9 nh\u1ea5t. M\u1eb7c d\u1ea7u th\u1ebf, l\u01b0\u1ee3ng Kali v\u1eabn b\u1ecb thi\u1ebfu tr\u1ea7m tr\u1ecdng \u1edf lu\u00e2n k\u1ef3 hai. C\u00e1c th\u00f4ng b\u00e1o khoa h\u1ecdc g\u1ea7n \u0111\u00e2y cho bi\u1ebft ch\u00ednh v\u00ec v\u1eady m\u00e0 \u1edf Braxin, c\u00e1c c\u00f4ng ty tr\u1ed3ng r\u1eebng th\u01b0\u1eddng chuy\u1ec3n m\u00f9n c\u01b0a, l\u00e2m s\u1ea3n th\u1eeba \u0111em tr\u1ea3 l\u1ea1i cho r\u1eebng khi khai th\u00e1c v\u00e0 khi thi\u1ebft k\u1ebf tr\u1ed3ng r\u1eebng th\u01b0\u1eddng \u0111\u1ec3 l\u1ea1i 25% di\u1ec7n t\u00edch \u1edf nh\u1eefng ch\u1ed7 quan tr\u1ecdng \u0111\u00e3 \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh (ven khe, d\u1ecdc s\u00f4ng su\u1ed1i, \u0111\u1ea7u ngu\u1ed3n v.v.) nh\u1eb1m duy tr\u00ec \u0111a d\u1ea1ng sinh h\u1ecdc v\u00e0 b\u1ea3o v\u1ec7 ngu\u1ed3n n\u01b0\u1edbc. Nh\u1eefng nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n c\u1ea7n n\u1eafm v\u1eefng l\u00e0 : <\/p>\n \u00b7 L\u1eadp \u0111\u1ecba x\u1ea5u kh\u00f4ng th\u1ec3 cho n\u0103ng su\u1ea5t cao ngay c\u1ea3 khi d\u00f9ng gi\u1ed1ng cao s\u1ea3n. Ph\u1ea3i \u00e1p d\u1ee5ng \u0111\u1ed3ng b\u1ed9 c\u00e1c bi\u1ec7n ph\u00e1p th\u00e2m canh cao m\u1edbi hy v\u1ecdng c\u00f3 \u0111\u01b0\u1ee3c c\u00e1c r\u1eebng tr\u1ed3ng nh\u01b0 mong mu\u1ed1n, song ph\u1ea3i t\u00ednh \u0111\u1ebfn kh\u1ea3 n\u0103ng sinh l\u1eddi v\u00e0 thu h\u1ed3i v\u1ed1n h\u1ee3p l\u00fd. <\/p>\n \u00b7 Gi\u1ed1ng t\u1ed1t m\u00e0 \u0111\u1ea7u t\u01b0 th\u1ea5p th\u00ec l\u00e3ng ph\u00ed v\u1ed1n \u0111\u1ea7u t\u01b0 m\u00e0 hi\u1ec7u qu\u1ea3 kh\u00f4ng cao, l\u00e0m h\u1ea1i \u0111\u1ebfn ti\u1ec1m n\u0103ng s\u1ea3n xu\u1ea5t c\u1ee7a gi\u1ed1ng v\u00e0 l\u00e0m h\u1ea1i \u0111\u1ea5t. Khi gi\u1ed1ng t\u1ed1t \u0111\u00e3 v\u1eaft s\u1ea1ch ngu\u1ed3n dinh d\u01b0\u1ee1ng c\u1ee7a \u0111\u1ea5t th\u00ec lu\u00e2n k\u1ef3 sau ta \u0111\u1ecbnh tr\u1ed3ng g\u00ec ? C\u00e1c nghi\u00ean c\u1ee9u cho th\u1ea5y, t\u0103ng tr\u01b0\u1edfng c\u1ee7a lo\u00e0i \u1edf lu\u00e2n k\u1ef3 hai gi\u1ea3m t\u1eeb 30% \u0111\u1ebfn 60% n\u1ebfu kh\u00f4ng c\u00f3 bi\u1ec7n ph\u00e1p \u0111\u1ea7u t\u01b0 th\u00edch h\u1ee3p nh\u01b0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ea5y \u1edf c\u00e1c r\u1eebng tr\u1ed3ng b\u1ed3 \u0111\u1ec1 (Styrax tonkinensis) lu\u00e2n k\u1ef3 hai v\u00e0 ba. <\/p>\n \u00b7 S\u1eed d\u1ee5ng gi\u1ed1ng t\u1ed1t, n\u0103ng su\u1ea5t cao th\u00ec di\u1ec7n t\u00edch tr\u1ed3ng thu h\u1eb9p l\u1ea1i, \u0111\u1ea7u t\u01b0 t\u1eadp trung, b\u1ea3o v\u1ec7 d\u1ec5 d\u00e0ng h\u01a1n. Vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang gi\u1ed1ng cho \u0111\u00fang l\u1eadp \u0111\u1ecba l\u00e0 \u0111i\u1ec1u c\u1ed1t y\u1ebfu c\u1ee7a t\u0103ng n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng. Kh\u00f4ng n\u00ean cho r\u1eb1ng ch\u1ec9 c\u1ea7n gi\u1ed1ng t\u1ed1t l\u00e0 c\u00f3 t\u1ea5t c\u1ea3. <\/p>\n C\u00e1c nh\u00e0 khoa h\u1ecdc \u1edf \u00d4xtr\u00e2ylia \u0111\u00e3 ch\u1ee9ng minh \u0111\u01b0\u1ee3c r\u1eb1ng v\u1edbi th\u00f4ng P. radiata, b\u1eb1ng qu\u1ea3n l\u00fd h\u1ee3p l\u00fd r\u1eebng tr\u1ed3ng m\u00e0 n\u0103ng su\u1ea5t t\u0103ng l\u00ean t\u1eeb 16 m3\/ha\/n\u0103m l\u00ean 33 m3\/ha\/n\u0103m. C\u00e1c nguy\u00ean t\u1eafc m\u00e0 h\u1ecd tu\u00e2n th\u1ee7 l\u00e0 : \u00e1p d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p qu\u1ea3n l\u00fd sao cho \u00edt g\u00e2y h\u1ea1i cho \u0111\u1ea5t nh\u1ea5t, b\u1ed3i ho\u00e0n c\u00e1c ch\u1ea5t dinh d\u01b0\u1ee1ng \u0111\u00e3 b\u1ecb c\u00e2y l\u1ea5y m\u1ea5t \u1edf lu\u00e2n k\u1ef3 th\u1ee9 nh\u1ea5t, duy tr\u00ec l\u01b0\u1ee3ng n\u01b0\u1edbc t\u1ed1i \u0111a trong \u0111\u1ea5t, gi\u1ea3m b\u1ed1c h\u01a1i n\u01b0\u1edbc, qu\u1ea3n l\u00fd b\u1ea3o v\u1ec7 trong su\u1ed1t qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t. <\/p>\n 4. Ngh\u1ecbch l\u00fd th\u1ee9 t\u01b0 : T\u00e2m l\u00fd m\u00ec \u0103n li\u1ec1n.<\/strong><\/em> <\/p>\n Nhi\u1ec1u ng\u01b0\u1eddi khi n\u00f3i \u0111\u1ebfn gi\u1ed1ng c\u00e2y r\u1eebng th\u01b0\u1eddng k\u00eau r\u1eb1ng ch\u01b0a nh\u00ecn th\u1ea5y \u0111i\u1ec1u g\u00ec m\u1edbi, r\u1eb1ng c\u00f4ng vi\u1ec7c g\u00ec m\u00e0 ch\u1eadm th\u1ebf, nh\u01b0ng h\u1ecd kh\u00f4ng hi\u1ec3u r\u1eb1ng h\u00e0ng ch\u1ee5c gi\u1ed1ng m\u1edbi hi\u1ec7n \u0111ang \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o s\u1ea3n xu\u1ea5t \u0111\u1ea1i tr\u00e0 ch\u00ednh l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a qu\u00e1 tr\u00ecnh kh\u1ea3o nghi\u1ec7m l\u00e2u d\u00e0i. C\u00e1c lo\u00e0i b\u1ea1ch \u0111\u00e0n kh\u00e1ng b\u1ec7nh, c\u00e1c gi\u1ed1ng keo \u0111\u01b0\u1ee3c tr\u1ed3ng kh\u1eafp c\u1ea3 n\u01b0\u1edbc, c\u00e1c gi\u1ed1ng keo \u0111\u01b0\u1ee3c tr\u1ed3ng \u1edf v\u00f9ng kh\u00f4 ven bi\u1ec3n v\u00e0 v\u00f9ng cao \u0110\u00e0 L\u1ea1t kh\u00f4ng ph\u1ea3i t\u1ef1 n\u00f3 \u0111\u1ebfn t\u1eeb n\u01b0\u1edbc \u00d4xtr\u00e2ylia ho\u1eb7c Papua New Guinea m\u00e0 \u0111\u00e3 ph\u1ea3i qua h\u00e0ng ch\u1ee5c n\u0103m th\u1eed nghi\u1ec7m tr\u00ean to\u00e0n qu\u1ed1c. N\u1ebfu gi\u1ed1ng c\u00e2y r\u1eebng m\u00e0 c\u0169ng \u0111\u01b0a ra nhanh nh\u01b0 gi\u1ed1ng c\u00e2y n\u00f4ng nghi\u1ec7p th\u00ec \u0111\u00f4i khi g\u00e2y n\u00ean h\u1eadu qu\u1ea3 kh\u00f3 l\u01b0\u1eddng. Nh\u00ecn th\u00e0nh qu\u1ea3 40 n\u0103m ch\u1ecdn gi\u1ed1ng c\u1ee7a Braxin m\u1edbi c\u00e0ng th\u1ea5y vai tr\u00f2 quy\u1ebft \u0111\u1ecbnh c\u1ee7a gi\u1ed1ng cao s\u1ea3n v\u00e0 m\u1ee9c \u0111\u00f3ng g\u00f3p tr\u00ed tu\u1ec7 ng\u00e0y c\u00e0ng cao c\u1ee7a c\u00f4ng t\u00e1c ch\u1ecdn gi\u1ed1ng v\u00e0o c\u00e1c gi\u1ed1ng m\u1edbi. V\u00e0o nh\u1eefng n\u0103m 60 – 70, c\u1ee9 5 n\u0103m n\u0103ng su\u1ea5t ch\u1ec9 t\u0103ng l\u00ean \u0111\u01b0\u1ee3c 4 – 5 m3\/ha\/n\u0103m trong khi v\u00e0o giai \u0111o\u1ea1n sau, l\u01b0\u1ee3ng t\u0103ng tr\u01b0\u1edfng n\u00e0y l\u00e0 tr\u00ean 10 m3\/ha\/n\u0103m. \u0110\u1ea7u t\u01b0 cho nghi\u00ean c\u1ee9u gi\u1ed1ng l\u00e0 \u0111\u1ea7u t\u01b0 li\u00ean t\u1ee5c, l\u00e2u d\u00e0i song r\u1ea5t c\u00f3 hi\u1ec7u qu\u1ea3. Ng\u01b0\u1eddi ch\u1ecdn gi\u1ed1ng kh\u00f4ng ch\u1ec9 l\u00e0m vi\u1ec7c v\u1edbi ri\u00eang m\u00ecnh m\u00e0 ph\u1ea3i c\u00f3 hi\u1ec3u bi\u1ebft v\u00e0 h\u1ee3p t\u00e1c \u0111a ng\u00e0nh v\u1ec1 th\u00e2m canh, k\u1ef9 thu\u1eadt l\u00e2m sinh, s\u00e2u b\u1ec7nh h\u1ea1i. M\u1ed9t gi\u1ed1ng m\u1edbi ch\u1ec9 t\u1ed3n t\u1ea1i trong m\u1ed9t giai \u0111o\u1ea1n nh\u1ea5t \u0111\u1ecbnh cho \u0111\u1ebfn khi n\u00f3 b\u1ecb tho\u00e1i ho\u00e1, b\u1ecb s\u00e2u b\u1ec7nh v.v. do v\u1eady ch\u1ecdn gi\u1ed1ng c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1ea7u t\u01b0 ti\u1ebfp t\u1ee5c \u0111\u1ec3 \u0111\u00f3n \u0111\u1ea7u c\u0169ng nh\u01b0 \u0111\u1ec3 gi\u1ea3i quy\u1ebft h\u1eadu qu\u1ea3, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi c\u00e2y r\u1eebng v\u00ec ch\u00fang c\u00f3 \u0111\u1eddi s\u1ed1ng d\u00e0i ng\u00e0y v\u00e0 s\u1ed1ng trong m\u00f4i tr\u01b0\u1eddng s\u1ed1ng t\u1ef1 nhi\u00ean. <\/p>\n III. H\u00e3y qu\u00ean \u0111i ngh\u1ecbch l\u00fd.<\/strong> <\/p>\n Gi\u1ea3i ph\u00e1p h\u1eefu hi\u1ec7u nh\u1ea5t c\u1ee7a hi\u1ec7n t\u1ea1i l\u00e0 h\u00e3y qu\u00ean \u0111i nh\u1eefng ngh\u1ecbch l\u00fd, nh\u01b0ng qu\u00ean \u0111i nh\u01b0 th\u1ebf n\u00e0o v\u00e0 b\u1eb1ng c\u00e1ch n\u00e0o m\u1edbi l\u00e0 \u0111i\u1ec1u c\u1ea7n b\u00e0n. T\u00e2m l\u00fd “\u0103n s\u1ed5i \u1edf th\u00ec”, kh\u00f4ng ch\u1ecbu \u0111\u1ea7u t\u01b0 m\u00e0 c\u1ee9 \u0111\u00f2i h\u1ecfi ho\u1eb7c b\u00e0ng quang v\u1edbi gi\u1ed1ng t\u1ed1t ch\u1ec9 l\u00e0m cho gi\u1ed1ng t\u1ed1t tr\u1edf th\u00e0nh v\u00f4 t\u00e1c d\u1ee5ng. Ng\u01b0\u1ee3c l\u1ea1i quan ni\u1ec7m cho r\u1eb1ng ch\u1ec9 c\u1ea7n gi\u1ed1ng t\u1ed1t l\u00e0 \u0111\u1ee7 m\u00e0 b\u1ecf \u0111i m\u1ecdi th\u1ee9 kh\u00e1c, qu\u00e1 \u0111\u1ec1 cao gi\u1ed1ng, ph\u00f4 tr\u01b0\u01a1ng h\u01a1n m\u1ee9c hi\u1ec7n c\u00f3, \u0111\u00f2i h\u1ecfi \u0111\u1ea7u t\u01b0 l\u1edbn m\u00e0 ch\u1eb3ng l\u00e0m \u0111\u01b0\u1ee3c g\u00ec nhi\u1ec1u c\u0169ng s\u1ebd mau ch\u00f3ng ph\u00e1 ho\u1ea1i uy t\u00edn c\u1ee7a c\u00f4ng t\u00e1c \u0111\u1ea7y kh\u00f3 kh\u0103n gian kh\u1ed5 n\u00e0y. B\u00ean c\u1ea1nh chi\u1ebfn l\u01b0\u1ee3c v\u00e0 \u0111\u1ecbnh h\u01b0\u1edbng nghi\u00ean c\u1ee9u ch\u1ecdn gi\u1ed1ng \u0111\u00fang, th\u00ec th\u00f4ng tin, h\u1ee3p t\u00e1c tri\u1ec3n khai, b\u1ea3o v\u1ec7 t\u1ed1t c\u00e1c kh\u1ea3o nghi\u1ec7m v\u1edbi c\u00e1c c\u01a1 s\u1edf trong c\u1ea3 n\u01b0\u1edbc; \u0111\u1ea7u t\u01b0 li\u00ean t\u1ee5c v\u00e0 l\u00e2u d\u00e0i cho nghi\u00ean c\u1ee9u gi\u1ed1ng, \u0111\u1ed9i ng\u0169 c\u00e1n b\u1ed9 c\u00f3 \u0111\u1ee7 tr\u00ecnh \u0111\u1ed9 v\u00e0 m\u1ea1ng l\u01b0\u1edbi c\u00e1n b\u1ed9 l\u00e0m c\u00f4ng t\u00e1c gi\u1ed1ng t\u1eeb trung \u01b0\u01a1ng \u0111\u1ebfn c\u00e1c \u0111\u1ecba ph\u01b0\u01a1ng ph\u1ea3i \u0111\u01b0\u1ee3c coi l\u00e0 nh\u1eefng v\u1ea5n \u0111\u1ec1 s\u1ed1ng c\u00f2n. <\/p>\n","protected":false},"excerpt":{"rendered":" V\u1edbi nh\u1eefng c\u1ed1 g\u1eafng l\u1edbn lao v\u1ec1 ch\u1ecdn gi\u1ed1ng và các bi\u1ec7n pháp thâm canh mà n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng \u0111ã t\u0103ng lên v\u01b0\u1ee3t b\u1ef1c, nh\u1ea5t là \u0111\u1ed1i v\u1edbi b\u1ea1ch \u0111àn (Eucalyptus<\/em>) \u1edf nhi\u1ec1u n\u01b0\u1edbc trên th\u1ebf gi\u1edbi trong nh\u1eefng n\u0103m v\u1eeba qua. Qua các s\u1ed1 li\u1ec7u t\u1ed5ng k\u1ebft c\u1ee7a Braxin thì có th\u1ec3 th\u1ea5y n\u0103ng su\u1ea5t ti\u1ec1m n\u0103ng c\u1ee7a các r\u1eebng tr\u1ed3ng b\u1ea1ch \u0111àn \u0111ã t\u0103ng trên 5% m\u1ed7i n\u0103m qua m\u1ed9t chu k\u1ef3 dài 30 n\u0103m \u1edf n\u01b0\u1edbc này.<\/font><\/span> <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[13],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8947"}],"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=8947"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8947\/revisions"}],"predecessor-version":[{"id":10403,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8947\/revisions\/10403"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=8947"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=8947"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=8947"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}