bio-products biofertiliser prof a kulasutriya
TRANSCRIPT
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BIOFERTILIZER BIOTECHNOLOGYBiofilm inoculants & Rhizobial Inoculants
S. A. Kulasooriya and Gamini SeneviratneNational Institute of Fundamental Studies, Hantane Road,
Kandy, Sri Lanka
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Control
50% CFs
100% CFs
BFBFs
BFBFs + 50% CFs
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100%N
Inoculation
Control
100%N+PM
Inoculation
Control
100%N+PM
Inoculation02468
101214161820
Hanguranketha
Rikillagaskada
Doragala
(ii) Vegetable Bean- Fresh pod yield (kg/m2)
Con N -fert Strain-1 Strain-2 Slurry165
170
175
180
185
190
195
200
205
210
FP RH BFBF140145150155160165170175180 14%
7%
N-Fertilizer Inoculant Cont0
500
1000
1500
2000
2500
3000
3500
4000
(i) Soya bean Seed yield (Kg/ha)
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CONCLUSIONS• Biofilm biofertilizers can replace 50% N, P
& K chemical fertilizers without any reduction in yield of tea, rice, maize, potato, carrot, tomato, capsicum and straw berry.
• Rhizobial biofertilizers can replace 100% chemical N-fertilizer without any reduction in yield of soybean, vegetable bean, cowpea, mung bean and the forage legume white clover.