Effect of inoculation with plant - growth promoting rhizobacteria (PGPR) on yield and uptake of nutrients by wheat grown on sandy soils

Amara, M.A.T.; Dahdoh, M.S.A.

Egyptian Journal of Soil Science 37(4): 467-484

1997


Accession: 003109022

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Abstract
A pot experiment studied the effect of wheat inoculation with plant-growth promoting rhizobacteria on yield and uptake of nutrients from sandy soil. All treatments with different genus (Azotobacter, Azospirilllum, Pseudomonas and Rhizobium) individually or in mixtures improved grain yield and total plant dry weight. Inoculation with Rhizobium showed the highest value of grain yield representing 106.1% over control, while inoculation with mixture of Azotobacter and Azospirillum showed the highest value of straw yield representing 157.0% over control. Inoculation with mixture of Azotobacter and Azospirillum increased the uptake of N, P, K, Na, Fe, Zn, Mn and Cu and inoculation with mixtures of Pseudomonas and Rhizobium increased the uptake of N, Na, Fe and Cu, while inoculation with Rhizobium increased the uptake of N, K, Na, Zn, Fe, and Cu and inoculation with Azotobacter increased the uptake of Mn.