D. iTng dung mo hinh bdn phan HCVSDK Polyfa.
CHUONG III: KET LUAN
1. Dii hoan thien cdng nghe san xuiil che phiim vi sinh vat dii khang gde qua hai cdng doan vdi ciic thdng sd ky thuat sau:
Ddi vdi cdng doan len men chim, 2 chiing vi khuan Serratia
marcescensTHlO vd Pseudomonas chlororaphis DC29 dugc dugc nuoi cay
trong mdi trudng MTl cd cac thdng sd:nhiet dp - 30-35 "C: pH-7,0-7,2: toe dp
canh khuii\ 150 \/pli: lugng khi nap 601/phut; thdi gian thu hdi 36-40 cho mat dp cao nhat Iu 2.10" 5.10''CFU/ml. Chting vi nam Chromocleista cinnaba CCS 10
dat duoc hieu qua nliit 4,3.10* CFU/ml khi len men vdi eac chi sd: nhiet do 35"C; pH6,5; tdc dp canh khuiylSO v/ph,lupng khi nap 701/; thdi gian thu hoi
40 Chiing xa xuin Sleplomyces nigrisceus VCM 1172 dat dugc hieu qua nhat
7././0'CFU/ml khi len men vdi cac chi sd: nhiet dp 45°C; pH6,8-7; tdc dp canh
khuiy200 v/ph,lugng khi nap 601/; thdi gian thu hdi 48-52h
Ddi vdi len men xdp 2 chting vi nim vii xa khuan: So sanh len men dan chting va len men chung 2 chting, thiy ring mac dti cd khac nhau ve nhiet dp vii thdi gian nudi eiy, nhung khi len men da chiing vdi cac thdng sd: dp i m - 40%; nhiet dp 40 "C, thdi gid 6501/ph, mdi trudng, cam, btin mia, vd ca phe (3:2:1) thu hdi sau 48-52 h cho hieu qua cao nhat
2. Da hoan thien cdng nghe len men ii cac loai ban thanh phim hiiu eo va ehl phim vi sinh ddi khang gde vdi thi tich khdi ti 90 m' - 100m' dl san xuit chl phim VSDK tren nin co chit khdng thanh trung vdi cac dilu kien: ngudn co chit la btin mia: than btin: vd ca phe theo ti le 1:1:1; do im ca chit 40 % - 50 %, pH tu 6-5 din 7, nhiet do ttr 35-C - 40°C, chl pham vi sinh vat gde 1kg/ Itan (mat dp 10' CFU/g). Thdi gian len men tir 4-10 ngay. Mat dp VSVDK d,t
Lien hiep KHSX CNSH & MT Du an san xuSt thu nghiem
3. Dii khao nghiem tren md hinh dien rdng va dien hep cho cay ca phe vii cay bdng ket qua cho thay:
Ddi vdi ciiv bdni^ vai:
Cae cdng thirc bdn phan huu co vi sinh ddi khang POLYFA c6 bd sung them phan don cho dii lugng (120 kg N + 60 kg P2O5 + 60 kg K20)/ha khong
thay xuat hien benh Id cd re do nam F. oxporum gay hai, cdn cac Id ddi chung
(khdng dugc bdn phiin) cd xuat hien benh re nhung ti le nho ttr 3,3% den 0,02%. Nang suat: Tiit ca cac viing khao nghiem vdi dien rdng deu cho nang suat cao ban so vdi khdng bdn tren 10%.
Hieu qua kinh le: phiin thu sau khi trtr chi phi bdn phan htru ca vi sinh doi khang Idn han cdng thtrc ddi chtrng bdn phan don va lai tren 743.000 ddng/ha.
Ddi vdi ca phe:
Khao nghiem dien hep cOng nhu dien rdng, nang suat ca phe nhan d cac Id bdn phan HCVS cao hon ttr 17 din 20% so vdi Id ddi chtrng. hieu qua trong phdng trtr nim benh cho cay ca phe cao.
4. Da dua ra quy trinh san xuit chl phim va phan bdn dii khang va quy trinh su dung phan bdn cho cay ca phe va cay bdng.
5. Da tham gia dao tao 1 nghien ciru sinh va mgt sl can bg ky thuat, edng nhan san xuit phuc vu Du an vii cac dan vi chuyen giao khac.
Lien hiep KHSX CNSH & MT Du an san xufit thii' nghiem