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Synergistic effect of bio-inoculants on yield, nodulation and nutrient uptake of chickpea (Cicer arietinum L) under rainfed conditions

Sharma, Vivek, Sharma, Sandeep, Sharma, Sapana, Kumar, Vijay
Journal of plant nutrition 2019 v.42 no.4 pp. 374-383
Cicer arietinum, Rhizobium, agricultural colleges, chickpeas, field experimentation, grain yield, inoculum, mycorrhizal fungi, nodulation, phosphorus, pods, seed treatment, soil, soil quality, straw, synergism, India
The use of efficient bio-inoculants in chickpea is the best way to increase crop productivity under rainfed conditions. To assess the combined effect of bio-inoculants on crop yield, field experiments were conducted during Rabi seasons at Research Station, Punjab Agricultural University, Ballowal Saunkhri, Punjab, India. The application of different bio-inoculants significantly improved number of pods, grain and straw yield of chickpea over the un-inoculated treatment. The combined application of Rhizobium + PSB + AM fungi + azotobactor inoculums as seed treatment with 75% of recommended phosphorus produced highest grain yield. The nodule count, nodule weight, per cent root colonization of AM fungi and different enzymes activities in soil were also highest in combined bio-inoculants treatment. The present study concluded that combined application of bio-inoculants (Rhizobium, PSB, AM fungi and azotobactor) can save 25% of recommended phosphorus by sustaining the crop yield and improving the soil health.