Vol. 12 No. 1
Response of phosphorus levels to chickpea (Cicer arietinum L.) cultivars and soil microbial activity in an Alfisol
Author(s): S. DAS, A. LAHA, S. BHATTACHARYAAND A. CHAKRABORTY
Abstract:
A field experiment was carried out during winter seasons of 2012-13 and 2013-14 to study the effect of application of different levels of phosphorus (P) on the yield attributing characters, yield of chickpea (Cicer arietinum L.) and soil microbial diversity in an Alfisol at the Bidhan Chandra Krishi Viswavidyalaya, West Bengal, India. There were 15 treatments in the combination of 3 chickpea cultivars (Anuradha, Pusa1003 and DCP-92-3) and 5 rates of P2O5 (0, 20, 40, 60 and 80 kg P2O5 ha-1) arranged in a split plot design. The cultivar DCP-92-3 showed the highest yield attributing characters and yield. Higher application of P significantly increased the seed yield and total P uptake but P recovery and agronomic efficiency decreased. The optimum and economic levels of P2O5 were 70.59 and 66.54 kg ha-1 respectively. Higher P fertilization increased the total bacterial population and microbial biomass carbon but had no effect on the diversity of ribotypes in the soil samples.
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