a f** F FF
4.6.De xuat mot so bien phop ky thuat de xay dung quy trinh ky thuat san xuat bong nang suat cao tai Phong Tho Lai Chaụ
F F t '
Tren ca sd nhiing ket qui nghien ciiu tren v i thuc te trien khai sin xuat bdng trong cic nam qua, chiing tdi de mot sd bien phip ky thuit de xay dung qui trmh sin xuat bdng nang suat cao phii hgp vdi dilu kien miln niii vimg Phong Tho - Lai Chau nhu sau :
1. Sir duns thudc trie cd Irons khau chudn bi đt: t F
* Chuan bi dat:
- Phit bd tin du ciy trdng vu trudc ngay sau khi thu hoach xong. Trudc thdi vu gieo trdng 3 5 - 4 5 ngay thi đt v i thu dgn.
- Phun thudc trir cd Gramoxone 20SL vdi lugng thuoc 2,5 lit/ha, phun 10 ngay trudc khi gieo bdng.
2. Thai vu sieo:
- Thdi vu gieo bdng thich hgp nhit hi 10/5 - 20/5. 3. Gions vd luoms sieo:
- Gidng bdng : VNOl-2 ; Lugng gidng gieo: 6 kg/hạ 4. Mdt đ. khodng cdch sieo:
- Mat do gieo: 5,5 van cay/ha
- Khoing cich gieo: Gieo so le vdi khoing cich 40 - 45cm .
- Gieo khi dit du am. Kilm tra do siu ngam im trong dat dat hi 15 cm trd len thi tien hinh gieọ
c. Bdn phdn
- Lugng phin bdn: 100kg Ure + 300kg N P K (5:10:3)/hạ - Cich bdn:
+ Bdn Idt: Bdn trudc khi gieo lugng phin 300kg NPK/hạ
Dat bang rach hing sau 15cm rii deu phin v i lip kin dit. Dit đc dimg cudc
F r F
hoc sau 8 - 1 0 cm, bdn phin, lip dit vun. + Bdn thiic:
- Bdn thiic lin 1: Sau gieo khoing 25-30 ngiy kit hgp vdi lim cd, xdi xiọ Lugng bdn 50% Ure + 50%) KCl. Lim sach cd v i rii diu phin cich gdc ciy bdng 1 0 - 1 2 cm, sau đ vun dit lap kin phin. Bdn phin khi dit cdn im.
- Bdn thiic lan 2: Sau gieo khoing 5 0 - 5 5 ngiy kit hgp xdi xio, lim cd bd sung. Bdn lugng phin cdn laị
PHAN 5
KET LUAN VA DE NGffl 5.1. Ket luan
1. Thdi vu gieo trdng bdng VNO 1-2 tai vimg Phong Thd Lai Chiu thich hgp nhit hr 10/5 din 20/5 duong lich, cho ning suat cao 16,3-17 ta/hạ
2. Gidng bdng lai VNO 1-2 tren dit vimg Phong Thd Lai Chiu trdng vdi mat do 5,5 van ciy/ha cho ning suit cao nhit. Phuang phip gieo so le (khoing cich gieo 40 - 45 cm) cd xu hudng cho ning suit cao hon so vdi phuang phip gieo hing (khoing cich 70cm x 26cm ).
3. Bdn phin cho bdng VNO 1-2 vdi lugng 100kg Ure + 300kg NPK/ha (61N + 3OP2O5 + 9K20/ha) cho ning suit bdng dat 15,6 ta/ha v i cho hieu qui kinh tl cao nhit (lai thuin thu dugc 3,642 trieu đng/ha).
4. Xii ly thudc trir cd Gramoxone 20SL lugng 2,5 lit/ha, Bravo 480 SL lugng 2,5 lit (pha vdi lugng nude 360 lit) phun diet cd trudc liic gieo bdng 10 ngiy hieu qui tuong duong lim cd bing tay (tinh theo ning suit 15,6 ta/ha v i 15.7 ta/ha). Thudc Gramoxone 20 SL cd chi phi tien thudc/1 lin phun thip hon Bravo 480 SL (thip hon 112.500 đng/ha) nhung tic dung diet cd nhanh (sau 4,3 ngiy), kip thdi cho cdng tic chuin bi dit, đng thdi khdng inh hudng den ty le mgc cua ciy bdng con.
5.2. De nghi
- Bh tii can dugc triln khai nghien ciiu tiep de cd ket luan diy du hon. Hd ndi, ngdy 25 thdng 01 ndm 2010
Chu nhiem de tai
K.S. Phan Quoc Hien
Hd ndi, ngdy 25 thdng 01 ndm 2010 (adsbygoogle = window.adsbygoogle || []).push({});
Thii trirdng co quan chu tri de tai
g Giam đc
PHAN 6
TAI LIEU THAM KHAO Ạ Tai lieu tieng viet
1. Bio cio khoa hgc hdi nghi khoa hgc ky thuit bio ve thuc vat toin qudc lin thir 2, N h i xuit bin Ndng nghiep H i Ndi, 2005, 400 trang.
2. Ly Van Binh, Phan Dai Luc (1991), Ky thudt trong bdng thdng dung mdi,
Vien Khoa hgc Ndng nghiep tinh Son Ddng - Trung Qudc, Nxb Khoa hgc ky thuat tinh Son Ddng - Trung Qudc (GS. Vii Cdng Hau dich).
3. Cdng ty Cd phin Bdng Mien Bic, Xdc dinh cdc gidi phdp cdng nghe nhdm ndng cao hieu qud kinh te ciia cdy bdng d cdc viing nui Tdy Bdc vd cdc tinh trung du (Bdc Giang, Vinh Phuc), Bio cio tdng ket de tii 3 nam (2003 - 2005),
thing 12 nam 2005.
4. De Geus J.G. (1983), " Cdy bdng", Hudng dan bdn phin cho ciy trong nhiet
đi v i A nhiet đi, tip II - ciy Cdng nghiep, Nxb. Ndng nghiep. H i Ndi (ngudi dich: Nguyln Xuin Hiln, Nguyen Mdng Huy, Le Trudng, Vii Hum Yem), trang 50-137
5. Duong Xuin Dieu (2003), Nghien ciru dnh hudng cua mat do vd chdt dieu F F ' ^
hod sinh trudng PDC den mot sd chi tieu sinh ly vd ndng sudt bdng gidng VNOl- 2 tai Duyen hdi Nam Trung Bd, Luan van Thac sy Ndng Nghiep, Trudng Dai
hgc Ndng Nghiep I, H i Ndị
6. Tran Thanh Dung (2002), "Xdy dung guy trinh phdng trir cd dgi cho viing trong bdng Ddng Nai", luan in tiln sy khoa hgc Ndng nghiep.
7. Vu Cdng Hau (1978), Ky thudt trong bdng, Nxb Ndng nghiep H i Ndi, 239
trang.
8. Le Kim Hy, Le Cdng Ndng, Trin Anh Hio v i ctv., Ket qud nghien cieu mot sd ky thudt canh tdc chinh cho bdng lai nhd nude trai d cdc viing mua dn dinh.
Bao cio nghiem thu tai Hdi đng khoa hgc Bd NN & PTNT nim 1997. Nha Hd, thing 8 nam 1997.
9. Nien giim thdng kẹ Cue Thong ke tinh Lai Chiu, thing 3/2009..
10. Hoing Diic Phuang, Gido trinh Cdy bdng, Nxb Ndng nghiep. H i Ndi, 1983,
75 trang.
11. Nguyln Khic Trung (1962), Ddi song cdy bdng, Nxb Khoa hgc. H i Ndi, 99
trang.
12. Vien Khio cuu Ndng Lam - Bd Ndng Lam, Ky thudt tdng ndng sudt bdng,
HiNgi, 1956, 5Itrang.