PHO BIEN KHOA HOC VA CONG NGHE
KET QUA SAN XUA T Wi/NGH/EM
GidNG LdA X U A N TRUNG XT28, X33 VA XUAN MUON XT27
I. N g u o n gd^c, d a c d i e m , d a c t i n h c i i a c a c gid^ng l u a XT28, X33
Gid'ng XT28: XT28 drfdc chpn t a o r a t r o n g nrfdc b a n g phrfdng p h a p lai hffu t i n h tff mdt gidng lua thdm cd ngudn gdc Trung Qud'c vdi gid'ng lua lai tao ngudn gd'c Viet N a m cd sffc chd'ng chiu t d n g h d p vdi mdt so' sau b e n h chinh h a i lua va cac dieu k i e n b a t t h u a n .
XT28 thuoc loai Mnh t h a p cay (cao cay trung binh 100 cm), bdng to (trung binh 150 - 200 hat/bdng), n a n g h a t (trpng Irfdng 1.000 h a t : 26 gam).
T i l m n a n g suat cao (cd t h e dat t r e n 10 tan/ha/vu).
XT28 chdng chiu kha vdi cac loai sau benh: Bac la vi khuan (Xanthomonas Campestris PV Oryzea), benh dao dn (Pyricu- laria Oryzea), benh khd van (Rhizoctonia Solani) va ray nau (Nilaparvata Lugens). Chiu drfng td't vdi b e n h sinh ly dd dudi Irfdn do ddc sat, thieu lan.
XT28 la gid'ng lua thdm, vd t r a u nau, gao trong, cdm deo thdm, ngon.
Gid'ng X33: X33 la gid'ng lua xuan trung, lai t a o t r o n g nrfdc tff gid'ng lua n a n g suat cao vdi gid'ng lua chd'ng chiu tdng hdp vdi cac loai sau b e n h cua Vien Lua qud'c te^.
X33 la gidng lua gd'c tia, md h a t tim, thuoc loai h i n h t h a p
•2S. TA MINH SdN NGUYlN TH! CAM TU Vien Khoa hoc Ndng nghiep cay, to bdng (cao cay trung binh 100 - 105 cm). Trung binh 190 hat/bdng. N a n g h a t , trpng Irfdng 1.000 h a t 27 - 28 gam.
T i l m n a n g n a n g suat cao (cd the dat t r e n 10 tan/ha).
X33 chd'ng chiu cao vdi cac loai sau benh: Bac la vi khuan (Xanthomonas Campestris PV Oryzea), b e n h dao dn (Pyricu- laria Oryzea), b e n h khd van (Rhizoctonia Solani) va r i y nau (Nilaparvata Lugens). Ddi vdi cac loai sau b e n h t r e n , gid'ng l u a X33 k h d n g can p h a i sff d u n g d e n thud'c hda hpc. X33 la gid'ng lua chiu t h a m canh k h a , gao trong, cdm deo, ngon.
Ten giong
XT28 X33 Xi23
The he
FIO F l l Ft
Bdng 1: Ddc diem,
Bong hOu hieu /khom
6,1 5,7 5,5
So bong/m^
288 297 287,6
So hat/
bong
182,2 190,0 176,7
ddc tinh cua
So h a t chac/
bong 173,3 160,5 163,8
T y l e h a t chic
' ( % )
95,1 93,2 92,7
giong
P 1000 h a t
26 29,3 25,1
lua XT28,
Nang suat ly thuyet (tan/ha)
13,0 14,0 11,8
X33
Nang suat thiic thu vu X08 (ta'n/ha)
7,4 7,0 6,4
Nang suat thifc thu vu
M08 (ta'n/ha)
7,0 6,5 5,9 Ten
giong Thdi gian sinh trilofng
vu xuan (ngay)
Th&i gian sinh trtfdng vu
miia (ngay)
Chiu lanh (diem)
Cho'ng ray nau
(diem)
Dao on CO bong
(diem)
Dac diem sinh hoc chinh
Chat lifong nau com
XT28 160 115 1-3 1-3
Cay cao kha, cflng, de khoe, bong kha dai va to, hat bau dai, to, may, deu hat, mau nau sam, mo trang, gao rat trong, thotm, xep hat trung binh, xit, chac kha cao.
Gao rat trong, com n&i kha dec va bong, dam, co mui thorn, an rat ngon (ngon hon P6 va ngon gan tifong dUOng vol BT7).
X33 170 121 3-5
Cay cao kha, dilng, cilng, de khoe, la lua hoi mong, bong to va dai, hat bau dai, mau vang sang, mo tim, xep xit, gao trong, may, deu hat, chic cao.
Gao trong, com deo a n nht Xi23.
S6 KHOA HOC VA CONG NGHE BAC NINH
m_ PHO BIEN KHOA HOC VA CONG NGHE
1. Ket qud ve ndng suat vd cdc yeu to cdu thdnh ndng suat ciia XT28 vd X33 tai xd Yen Loc, huyen Can Lpc vd xd Tnictng Sotn, huyen Diic Thp, tinh Hd Tinh. Vu dong xudn 2009 - 2010
Bdng 2: Ndng suat vd ye'u td cdu thdnh ndng suat cua XT28 d huyen Can Ldc vd huyen DUc Thg (Vu ddng xudn 2009 - 2010)
Ten gio'ng
XT28 XT28 P6
Dia diem
Can Loc Dilc Tho
"
Cao cay (cm)
110 100 77
Dai bong
(cm) 23 23,5 18,4
So khom/
m^
44 47 52
Bong/
khom 5,9 5,1 6,5
So hat/
bong 150 137 86
Hat chac/
bong 128 123 72
T y l e lep (%) 14,7 10,2 16,3
P 1000 h a t
27 27 24
Nang suat ly thuyet
89,71 79,60 58,40
Nang suat tho'ng ke
67,28 64.2 43,80
% t a n g so vdi d/cP6 153,6 146,5 100,0
Nhdn xet: XT28 d ca hai hdp tac xa thuoc huyen Can Ldc va huyen Dffc Thp d i u vrfdt d/c P 6 tff 46,5 - 53,6%. Cac gid'ng t r e n deu sach sau b e n h va h i u nhrf k h d n g dung thud'c h d a hpc.
Bdng 3: Ndng suat vd ye'u td cdu thdnh ndng suat cua X33 d huyen Can Ldc vd huyen BUc Thg (Vu ddng xudn 2009 - 2010)
Tgn giong
X33 Xi23 X33 Xi23
Dia diem
Can Lpc Can Loc Dilc Thp Dijfc T h p
Cao cay (cm)
111 98 107
95
Dai bong
(cm) 25 22.5 24,5 22
So khom/
m^
44 44 59 47
Bong/
khom 6,2 6,2 5,3 5,8
So hat/
bong 159 107 138 83
Hat chac/
bong 124
95 119
79
T y l e lep (%) 22,0 11,2 13,7 4,8
P 1000 h a t (gam)
28 25 28 25
Nang suat ly thuyet (ta/ha) 94,71 64,79 104,2 53,83
N a n g suat tho'ng ke
(ta/ha) 68,50 48,59 80,93 40,37
% tang so vOi d/cXi23
140,9 100,0 200,5 100,0
Ket ludn: XT28 va X33 la a p dung cac bien p h a p t h a m cd gid l a n h , mrfa p h u n nhrfng nhffng gidng lua t h u i n , n a n g canh t d n g h d p t h i h a i gid'ng y g ^ cho n a n g s u a t cao. D i l u suat cao, chat Irfdng td't, chd'ng t r e n chrfa c i n p h a i dung den . , , . . ^^m^o ^^or. -, • n- .-f 1 ^ i- ' 1 • - 1, -' 1,' u vrnoo - v o o n a y chrfng to XT2 8, X3 3 chiu emu tong hdp vdi cac loai sau m u o c h o a hpc. XT28 va X33 , , benh: dao dn, bac la vi khuan, cdn chiu drfng drfdc trd trong ^^^^ <5ieu k i e n b a t t h u a n cua khd v a n va sau r i y nau. Neu d i l u kien khi hau b a t thrfdng: H a Tinh.
2. Ket qud ddnh gid nhanh XT28 vd X33 vu xudn 2010
Bdng 4: Ndng suat vd yeu td cdu thdnh ndng suat cua XT28 vd X33 tai xd Phu Ldm, huyen Tien Bu, tinh Bdc Ninh (Vu ddng xudn 2009 - 2010)
Dia diem
Phu Lam
Ten gio'ng XT28 (Cay 8/2) XT28 (Cay 21/2) C70
X33
So' bong/
khom 6,4 6,8 6,8 6,2
So h a t chac/
bong 157 160 123 157
T y l e lep %
13,7 8,6 12,1
7,1
P 1000 h a t (gam)
26 26 23 28
Nang suat ly thuyet
(ta/ha) 96,6 96,1 76,9 98,1
Nang suat dif tinh
(ta/ha) 67,7 67,3 53,9 68,7
% n a n g suat thifc thu so d/c
125,6 124,9 100 127,5
tdc lua.
3. Ky thuat canh giong lua XT28 vd X33
a. Bdt: C h a n d a t 2 chan v a n hoac van t h a p .
b. Thdi vu gieo cdy Vu ddng xudn
- Gidng X33: Gieo ma drfdc tff 5 - 15/12. Cay 20 - 25/1 se
thu hoach vao 20 - 25/5 (drfdng lich). Xa Phu Lam, huyen Tien Du, t i n h Bac Ninh: Gieo:
18/12/2009. Cay: 8/2/2010.
- Gidng XT28: Gieo, cay sau 1 tuan. Gieo ma drfdc trf ngay 10 - 20/12. Cay tff n g a y 20 - 25/1 se thu hoach vao ngay 20
- 25/5 (drfdng lich). Xa Phu Lam, huyen Tien Du, t i n h Bac N i n h . Gieo: 20/12/2009. Cay:
8/2/2010 va 21/2/2010.
Vu mua
- Gidng X33 cd t h e t h a y t h e X23 dd'i vdi vung chuyen 2 lua.
De dat n a n g s u i t cao hdn Xi23
THONG TIN KHOA HQC & CONG NGHE - SO 4 / 2 0 1 0 o]Q
•:s..Fs;:^»iii.iS'a;."ft
PHO BIEN KHOA HOC VA CONG NGHE
m a it c i n den thud'c trrf sau benh. Gieo cay nhrf Xi23.
- Giong XT28: Gieo cud'i thang 5, cay trrfdc 176. Thu hoach trrfdc 15/10. (Thdi gian XT28 sinh trrfdng 118 - 120 ngay).
c. Mat do cdy: 45 - 50 khdm/m^. Mdi k h o m 2 - 3 d a n h cd b a n .
d. Phdn bdn: Bdn nhrf cac gidng lua xuan chinh vu X21, X23, P6, C70. L i l u Irfdng bdn:
5 - 1 0 t a n p h a n chuong, N:P:K: 100: 90: 100.
Bdn ldt t o a n bd p h a n chuong, p h a n l a n . Bdn t h u c 1/3 dam, 1/3 kali khi lua ben
rd hdi x a n h k h i t h d i t i e t a m (vu ddng xuan). Vu m u a b d n trrfdc brfa cay l a n cud'i 1/3 p h a n d a m va 1/3 kali.
Toan bd so' p h a n cdn lai t a p trung vao thuc de va bdn nudi ddng. Chu y n h i n cay m a bdn.
(Bdn thuc de sau cay 7 - 10 ngay, 2/3 sd' d a m cdn lai va kali 1/3. 1/3 p h a n kali cdn lai bdn vao giai doan ddn ddng va nudi ddng).
De t a n g sffc k h d e cho lua, chd'ng chiu lai cac loai sau b e n h khac lam t a n g n a n g suat va chat Irfdng cd t h e a p dung b i e n p h a p t h a m c a n h t d n g hdp theo quy t r i n h .
n . G i o n g l u a x u a n m u o n , m u a s d m XT27
1. Nguon goc
XT27 drfdc chpn lpc r a tff q u i n t h e H T l dang p h a n ly tff vu xuan 2005, mua 2005 va vu x u a n 2006. Ddng t h u i n H T I cd vd t r a u t r a n g , m a n g ky h i e u 54 H T l t r a n g 3 drfdc chon ra, giff lai, p h a t t r i e n va d a t t e n la XT27. X la t e n gid'ng cd k h a n a n g chd'ng benh bac la vi k h u a n (Xanthomonas C a m p e s t r i s PV Oryze). T la gid'ng lua drfdc chpn r a vi gidng lua t h d m H T l . 27 la sd thrf trf t e n gid'ng.
XT27 cdn cd t e n k h a c la SH2 (Sdng Hong 2).
Bdng 5. Bdc tinh, ddc diem ndng - sinh hgc gidng lua XT27 (SH2)
Ten giong XT27 KD18 H T l
TGST (ngay) Xuan mupn 183 130 134
Miia 107 105 108
Cao cay (cm)
99 90 100
Hat/
bong 122 119 120
Bong/
m^
267 259 253
P 1000 h a t (g) 22.5 19.3 23.3
Nang s u a t l y thuyet ta/ha
73.3 59,5 70.7
Chong chiu sau benh (diem) Bac la
3 3-5
5
Dao on 3 3 3
Kho v i n 3 3 3
Ray nau 3 3 3
Cho'ng do
3 5 3
Chat lifpng com Mem, dam Cling Mem, nhat
2. Ket qud mdrong dien tich sdn xuat vu xudn muon 2009 tai Hd Tinh
Bdng 6: Ndng sudt, yeu td cdu thdnh ndng suat, khd ndng chdng chiu sdu benh vd dieu kien bdt thuan cua XT27 tai xd BUc Ldm, huyen BUc Thg, tinh Hd Tinh. (Trd xudn mudn 2009
dien tich 25 ha)
Ten giong XT27 KD18 H T l
Dp thuan
dong rupng kha kha kha
So' bong/
m- 390 440 370
So h a t chac/
bong
157,2 102,8 86,8
P 1000 h a t (gam)
24,91 21,68 25,90
Nang suat ly thuyet (ta/ha) 152,71 98,06 83,18
Nang suat thifc thu
(ta/ha) 54,66 50,00 52,00
% nang suat t a n g so vOi doi chijfng
(%) 109,3 100,0 104,0
Benh dao on CO bong
(diem) 1-3 1-3 1-3
Benh bac la vi khuan
(diem) 1-3 1-3 1-3
Benh sinh ly do duoilUOn
(diem) 1 1 1-3
Bang 7: Ndng sudt vd yeu td cdu thdnh ndng sudt gidng xudn mupn XT27
(Trung tdm Khdo nghiem sdn xuat tai xd Thien Ldc, huyen Can Loc trd xudn muon, vu xudn 2009)
Ten giong XT27 KD18 (d/c) HTl(d/c)
So khom/
m- 60 60 60
So bong/
khom 5,7 6,0 5,6
So hat/
bong 126 111 104
So hat chac/
bong 99 94 88
Ty le lep (%) 21,4 15,3 15,4
P 1000 h a t (gam)
23,0 19,8 22,4
Nang suat ly thuyet
(ta/ha) 77,87 67,00 66,23
Nang suat thifc tliu
(ta/ha) 65,50 58,00 56,00
% nang suat thifc thu so d/c 112,93 100,00 96,55
jMs S6 KHOA HOC VA CONG NGHE BAC NINH
I PHO BIEN KHOA HOC VA CONG NGHE
3. Ket qud sdn xuat thvC giong Ida XT27 tai Vinh Phuc vu xudn muQn 2009 Bdng 8. Yeu td cdu thdnh ndng sudt vd ndng sudt thUc thu cua lua XT27
d cdc diem thUc nghiem, vu xudn mudn 2009 tai Vinh Phuc
Dia phifong Giong Ilia
20 ha XT27 6 3 xa So~'bong/kh6m So'hat/bong Ty le h a t chac (%) Khoi lifpng 1000 h a t (g) Nang suat ly thuyet (ta/ha) Nang suat thifc thu (ta/ha)
Xa Minh Quang, huyen Tam Dao XT27
8 ha 6-8 110-130
86.4 21.0 69,4 56,0
KD18 (d/c) 8 ha
6-8 110-125
76.4 20.0 57,1 45,9
Xa Hpp Chau, huyen Tam Dao XT27
2 ha 6-8 115-130
85.0 21.0 68,2 63,9
KD18 (d/c) 2 ha
6-8 110-125
85.5 20.0 63,8 48,4
4. Ket qud sdn xuat thU XT27 tai Vinh Phiic, vu miia 2009
Bdng 9. Cdc yeu td cdu thdnh ndng sudt vd ndng sudt thUc thu cua gidng lua XT27 d cdc diem tg,i Vinh PhUc, vu mua sdm 2009
Dia phuong Gio'ng Ilia
Dien tich khao nghiem 20 ha So bong/khom
So hat/bong Ty le h a t chac (%) Khoi lupng 1000 hat(g) Nang suat ly thuyet (ta/ha) Nang suat thUc thu (ta/ha) So sanh nang suat cua XT27 vdti doi chiing KD18 (%)
Xa Bo Ly, huyen Tam Dao XT27
5 ha 5-7 115-130
75.4 21.0 56.2 45,3 114,9
KD18 (d/c)
-
5-6 110-120
70,4 20.0 52.7 39,4 100
Xa Yen Duong, huyen Tam Dao XT27
5 ha 5-7 110-150
78.0 21.0 58.4 40,6 122,6
KD18 (d/c)
-
5-6 100-120
70.5 20.0 53,8 33,1 100
Tdm lai: Qua s a n xua't cac k e t qua n g h i e n cffu t r e n , 5. Ket qud khdo nghiem thff 40 h a n a m 2009 t a i 5 Sd Khoa hpc va C d n g n g h e gidng XT27 vu xudn muon, HTX cua V m h P h u c cho t i n h V m h P h u c da cho thrfc mua sdm 2009
t h a y : XT27 t h e h i e n t h i c h h i e n drf a n s a n xua't m d (Trung t a m Khao kiem h d p v d i viec drfa v a o s a n r o n g h d n 100 h a t a i t i n h nghiem gid'ng cay trong va phan x u a t r o n g d V i n h P h u c . Vdi V i n h P h u c n a m 2010. bdn qud'c gia vu xuan mupn 2009)
Bdng 10: Ndng sudt thUc thu cua cdc gid'ng khdo nghiem vu xudn mudn 2009 (Trung tdm Khdo kiem nghiem gid'ng cdy trong vd phdn bdn qud'c gia vu xudn mudn 2009)
Diem khao nghiem KD18 (d/c) XT27 KN2 DT122 (d/c) C V % LSD 0,05
Hung Yen 54,21 53,67 61,67 48,67 6,7 5,35
Hai Duong
46,73 57,33 49,77 51,27 4,6 3,85
Hai Phong
52,30
51,03 63,70 5,3 5,37
Thai Binh 66,50 57,50
57,50 4,6 4,77
Thanh Hoa 62,30 63,90
60,77 5,2 3,20
Nghe An 57,00 59,00 48,00 53,00 6,3 6,16
Hoa Binh 62,00 65,00 53,00 58,67 6,9 6,92
Ha Tinh 42,43 34,97
46,63 5,8 5,36
Bac Giang
42,43 49,73
38,30 5,5 4,11
Vinh Phuc 62,30 64,30 50,00 59,30 4,7 4,68
Phii Thp 57,67 59,33 55,33 54,00 4,4 4,30
Tuyen Quang 44,70 53,27
51,50 6,7 5,52
Trung binh 54,21 56,18 52,69 53,64
THONG TIN KHOA HOC & CONG NGHE - SO 4 / 2 0 1 0
u PHO BIEN KHOA HOC VA CONG NGHE
J>Nhdn xet: B a n g 10 cho dia phrfdng n a n g s u i t trung (KD18: 54,21 ta/ha). XT27 cdn t h a y : Trong vu xuan mudn binh 56,18 ta/ha cao hdn KD18 cho gia t r i thrfdng p h a m cao 2009, XT27 khao n g h i e m d 12 gia t r i tuyet dd'i 1,97 t a / h a hdn h a n KD18.
Bdng 11: Ndng sudt thUc thu ciia cdc giong tham gia khdo nghiem vu mua 2009 (Trung tdm Khdo, kiem nghiem gidng cdy trong vd phdn bdn quoc gia vu mua 2009)
Diem khao nghiem KD18 (d/c) XT27 CV%
LSD 0,05 Hung
Yen 53,30 64,13 5,80 5,75
Hai Duong
53,00 54,87 5,10 4,79
Hai Phong
51,33 46,13 5,30 4,26
Thai Binh 55,50 53,37 5,10 4,89
Thanh Hoa 59,20 54,00 4,90 4,66
Nghe A n ' 43,00
8,70 6,61
Hoa Binh 47,27 50,07 5,60 4,71
Ha Tinh 40,27 49,80 6,50 4,07
Bac Giang
52,03 49,77 6,10 5,05
Vinh Phuc 54,00 57,00 4,50 3,88
Phu Thp 55,60 43,03 5,60 4,38
Tuyen Quang 54,87 59,60 7,40 6,47
Trung binh 51,61 52,89
Nhdn xet: B a n g 15 cho gia tri tuyet dd'i cao hdn KD18 6. Ket qud ddnh gid t h a y trong vu mua XT27 v a n d 12 diem k h a o nghiep t a i cac nhanh XT27 vu xudn muon cho n a n g s u a t b i n h quan ve dia phrfdng. 2010
Bdng 12: Ndng sudt vd yeu td cdu thdnh ndng sudt cua XT27 tai xd Viet Bodn vd xd Tri Phuang, huyen Tien Bu, tinh Bdc Ninh, vu ddng xudn 2009 - 2010
Dia diem
Viet Doan
Tri Phuong Ten giong XT27 KD18 XT27 KD18
ThiJi gian sinh trudng (ngay) 134 133 134 133
So' bong/
khom 6,5 6,2 6,8 6,1
So hat chac/
bong 145 153 155 146
Ty le lep % 10,5
8,9 8,8 8,7
P 1000 hat (gam)
21,2 20,0 21,2 20,0
Nang suat ly thuyet
(ta/ha) 89,9 79,7 89,4 80,2
Nang suat dif tinh
(ta/ha) 62,9 55,8 62,6 56,1
% nang suat thifc thu so d/c
112,8 100,0 111,5 100,0
7. Ky thudt canh tdc gidng lua XT27
a. Bdt: C h a n d a t 2 lua 1 mau (cay vu ddng). C h a n v a n hoac v a n cao.
b. Thdi vu gieo cdy
Trd xudn mudn: Gieo m a day sue, m a s a n xung q u a n h 15 - 20/1. C i y xung quanh lap xuan 5/2 (Cay k h i m a 3 - 4 la hoac tudi m a 12 - 15 n g a y ) . C u ' t h e :
Xd Viet Bodn: Gieo m a drfdc 22/1/ 2 0 i 0 , cay: 21/2/2010. Xa Tri Phrfdng: Gieo m a drfdc:
24/1/2010, cay: 21/2/2010
Vu mua sdm (mien Bdc):
Gieo cudi t h a n g 5 d i u t h i n g 6, m a s a n hoac m a day, sffc tudi m a 12 - 15 ngay.
c. Mat do cdy: 40 - 50 khdm/m^. Mdi k h o m 2 - 3 d a n h cd b a n .
d. Phdn bdn: Ap dung nhrf cac gid'ng lua n g a n n g a y KD18, H T l , Q5... k h a c . Lrfdng p h a n cd the bdn: 10 t a n p h a n chuong, 90 kg N, 60 kg P2O5, 60 kg K2O.
Nguyen tdc bdn phdn: La bdn n a n g d i u n h e cud'i. Tdy theo loai d a t cd t h e chia r a 2 - 3 l a n de bdn, n h i n cay m a bdn. Cu t h e : Bdn ldt t o a n bd p h a n chuong va p h a n lan. Bdn thuc sau cay lua b e n c h a n 1/3 p h a n dam, 1/3 p h a n kali. Bdn thuc de 2/3 p h a n d a m va 1/3 p h a n kali. Sd p h a n kali cdn lai bdn thuc ddng.
III. Q u y t r i n h svL d u n g c a c c h e p h a m d i e u h o a s i n h tri:fdtng d e n a n g c a o STjfc k h o e c a y l u a , n a n g cao k h a n a n g p h o n g chd^ng b e n h h a i l i i a
1. Cdch sU dung cdc che pham
a. Xd ly ddt trUdc khi gieo ma vd cdy: L o a i thud'c:
S u l p h a t d d n g
- Lieu Irfdng: 0,5 kg/sao cay (360 m^) hoac 1 sao ma.
- Cach sff dung: Trpn thud'c vdi cat r a c deu m a t rupng trrfdc l i n l a m d a t l i n cud'i cung cua gieo m a va cay (hoac lua gieo t h i n g ) .
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Bdi vdi liia cdy (ma sue, ma dugc):
- Lieu Irfdng: 3 gdi/sao cay (360 m^) tff n g a m den sau cay 5 - 7 ngay.
- Cach sff dung: H d a 1/3 gdi vdi 3 lit nrfdc n g a m 2 - 2,5 kg thdc gid'ng/sao. N g a m t h d c 18 - 24 t i e n g , v d t t h d c rffa s a c h dem u b i n h thrfdng.
Khi h a t t h d c nfft n a n h t r p n deu vdi 1/3 gdi (pha t h e m it nrfdc) sau dd dem gieo. Sau gieo 3 - 7 n g a y (ma m u i chdng) neu m a xau t h i phun Irfdng 1/3 cdn l a i , neu m a td't t h i k h d n g p h u n nffa. Trrfdc k h i cay h d a 1 gdi vdi 16 lit nrfdc de n h u n g re m a cua 1 sao cay sau dd m a n g di cay.
Sau cay 3 - 7 n g a y , h d a 1 gdi vdi 16 lit nrfdc trfdi (phun) cho 1 sao cay.
Bdi vdi lua gieo thdng:
- Lieu Irfdng: 3 gdi/sao lua gieo t h i n g . Trf n g a m h a t den m a mui chdng (sau gieo t h i n g 3 - 7 ngay).
- Cach sff dung: Hda 1/3 gdi vdi 3 lit nrfdc n g a m 2 - 2,5 kg thdc gid'ng/sao (360 m^). Ngam thdc 18 - 24 tieng, vdt ra rffa sach sau u nhrf b i n h thrfdng.
Khi h a t thdc nrft n a n h l i y r a trpn deu vdi 2/3 gdi thud'c cdn lai sau dd dem gieo. Sau gieo 3 - 7 ngay (ma mui chdng), hda 1 gdi vdi 16 lit nrfdc trfdi (phun) cd t h e phun cung vdi thud'c trrf cd. 7 ngay sau, hda 1 gdi vdi 16 lit nrfdc trfdi (phun) l i n cud'i cung.
c. Cdch sd dung che pham Landkinh lUa kich thich de nhdnh
Ddi vdi lua cay
- Lieu Irfdng: 80 ml/sao, chia l a m 4 l a n phun (20 ml/lan/sao. Bat d i u sau cay trf 7 - 10 n g a y den k h i Ida de n h a n h td'i da).
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- Cach sff dung: Hda 20 ml che p h a m vdi 16 lit nrfdc (2 binh phun thud'c sau) de phun:
L i n 1: P h u n khi Ida hdi x a n h (sau cay 7 - 1 0 ngay) cung vdi l i n dung che p h a m kich thich r a r i J a n g k i n s u l i n cud'i cung.
L i n 2 t r d di: Cach 5 - 7 ngay phun 1 l i n .
Bdi vdi lUa gieo thdng - Lieu Irfdng: 80 ml/sao, chia l a m 4 l a n phun (20 m l / l i n / sao. B a t d i u tff sau gieo 3 - 7 ngay den khi lua de n h a n h td'i da).
- Cach sff dung: Hda 20 ml che p h a m vdi 16 lit nrfdc (2 binh phun thud'c sau) de phun cho 1 sao. L a n 1: Sau gieo 3 - 7 ngay, p h u n cung vdi l i n
d u n g c h e p h a m kich r a r e J a n g k i n s u l i n cud'i cung. L i n 2 t r d di: Cach 7 - 10 n g a y phun 1 l i n .
d. Cdch sU dung che pham Sum sieu lua kich thich phdt trien ddng, trd thoat nhanh vd hatchac
- L i e u Irfdng: 2 g d i / s a o (360 m^), cho ca lua cay va gieo t h i n g . Thdi gian: Thdi ky lua dffng cai (sau cay 35 - 40 ngay).
- Cach sff dung: L a n 1: Lua dffng cai. Hda 1 gdi vdi 16 lit nrfdc (2 binh) p h u n 1 sao. L a n 2: Sau l i n 1 trf 7 - 10 n g a y , h d a 1 gdi vdi 16 lit nrfdc phun cho 1 sao.B
T H O N G TIN K H O A H Q C & C O N G N G H E - S O 4 / 2 0 1 0
