Effect of VA-mycorrhiza and phosphate dissolving microorganisms on the yield and phosphorus uptake of wheat (Triticum vulagare) [in Bangladesh]
1989
Sattar, M.A. | Gaur, A.C.
The response of wheat (var. BD 2204) to VA-mycorrhiza (Glomus fasciculatus) and four phosphate dissolving microorganisms (Aspergillus awamori, A. niger, Pseudomonas striata and Bacillus pulvifaciens) were investigated in presence and absence of rock phosphate and super phosphate at 0.30 and 60 kg P2O5/ha) in a 4 replicate pot culture experiment. In case of grain and straw production, A. awamori performed better amongst the cultures, the increase being 22 and 17% over uninoculated control respectively. P. striata recorded 41% higher phosphate uptake when applied with G. fasciculatus. The combined application of rock phosphate and super phosphate at 30 kg P2O5/ha each with FYM yielded 131% more grain, 79% more straw and 183% more phosphate uptake than their respective controls. The gain was further increased when microbial inoculants were used with fertilizer treatments. Cultures with higher dose of super phosphate recorded reduced effect on yield (3-40%) and phosphate uptake (6-38%). Mixed inoculation was also found inferior to other cultural treatments.
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