The present investigation was undertaken with objectives of studying the effect of phosphorus and biofertilizer treatments on symbiotic parameters, productivity and profitability of kabuli chickpea. The field experiment was conducted during 2017–2018 and 2018–2019 with five phosphorus levels (0, 20, 30, 40 and 50 kg P2O5 ha−1) and three biofertilizer treatments (uninoculated control, Mesorhizobium + RB-1 [Pseudomonas argentinensis] and Mesorhizobium + PSB-18 [Bacillus cereus]). Biofertilizers were used for inoculation of seed prior to sowing. Chlorophyll content index, number of nodules, nodule dry weight, leghaemoglobin content and nitrogen and phosphorus concentrations in shoot were recorded the highest with application of 50 kg P2O5 ha−1. The highest grain yield (2059 and 2196 kg ha−1 in 2017–2018 and 2018–2019, respectively) was obtained with the application of 50 kg P2O5 ha−1 which was statistically at par with 40 kg P2O5 ha−1 (2045 and 2183 kg ha−1). However, the highest net returns and benefit-cost ratio were obtained with the application of 40 kg P2O5 ha−1. Inoculations with Mesorhizobium + RB-1 and Mesorhizobium + PSB-18 proved superior over uninoculated control with respect to all parameters studied. Mesorhizobium + RB-1 and Mesorhizobium + PSB-18 enhanced the grain yield by 15.33 and 15.52% in 2017–2018 and by 13.82 and 14.27% in 2018–2019, respectively, over uninoculated control. For obtaining high productivity and net returns of kabuli chickpea, 40 kg P2O5 ha−1 and seed inoculation with Mesorhizobium + RB-1 (Pseudomonas argentinensis) or Mesorhizobium + PSB-18 (Bacillus cereus) are found to be the most efficient.

中文翻译：

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磷和生物肥料应用对喀布尔鹰嘴豆 (Cicer arietinum L.) 的共生参数、生产力和盈利能力的影响

本调查旨在研究磷和生物肥料处理对 kabuli 鹰嘴豆的共生参数、生产力和盈利能力的影响。田间试验于 2017-2018 年和 2018-2019 年进行，采用五种磷水平（0、20、30、40 和 50 kg P2O5 ha-1）和三种生物肥料处理（未接种对照、中根瘤菌 + RB-1 [阿根廷假单胞菌]）和中根瘤菌 + PSB-18 [蜡样芽孢杆菌]）。生物肥料用于在播种前接种种子。叶绿素含量指数、根瘤数、根瘤干重、豆血红蛋白含量和芽中氮和磷浓度在施用 50 kg P2O5 ha-1 时记录最高。粮食产量最高（2017-2018 年和 2018-2019 年分别为 2059 和 2196 kg ha−1，分别）是通过施用 50 kg P2O5 ha-1 获得的，这在统计上与 40 kg P2O5 ha-1（2045 和 2183 kg ha-1）相当。然而，使用 40 kg P2O5 ha-1 获得了最高的净回报和收益成本比。就研究的所有参数而言，用中生根瘤菌 + RB-1 和中生根瘤菌 + PSB-18 接种证明优于未接种的对照。与未接种对照相比，中生根瘤菌 + RB-1 和中生根瘤菌 + PSB-18 使 2017-2018 年的谷物产量分别提高了 15.33% 和 15.52%，2018-2019 年提高了 13.82% 和 14.27%。为了获得 kabuli 鹰嘴豆的高生产力和净回报，发现 40 kg P2O5 ha-1 和用中根瘤菌 + RB-1（阿根廷假单胞菌）或中根瘤菌 + PSB-18（蜡状芽孢杆菌）进行种子接种是最有效的。