Abstract
The immobility of phosphorus (P) and its precipitation in the soil is a major fact and remains in place where P fertilizer applied. Without organic amendments and beneficial microbes, P availability is limited in the current season crop. To increase crop productivity and P availability, field experiments were conducted at Agriculture Research Institute Mingora Swat (ARI) for two consecutive years in the summer season (2016 and 2017). The main objective of this research work was to evaluate the impact of peach based residues (partially decomposed, compost, and Nano-black carbon), three P levels (50, 75, 100 kg P ha−1), and two beneficial microbes, [phosphate solubilizing bacteria (PSB) and fungi (Trichoderma)] on soybean. Experimental outcomes revealed dry matter partitioning and dry weight in soybean stem, leaves, and pods amplified with peach organic amendments and carbon sequestration in soil. Dry weight and partitioning in leaf, stem, pods, and total plant considerably improved with combined application of peach Nano-black carbon, soil application of Trichoderma, and 100 kg P ha−1 in both stages combine over the two years. It is suggested to enhance P availability in soil, Nano-black carbon and soil application of Trichoderma might be effective with 100 kg P ha−1 for optimum plant growth, yield, and yield contributing traits.
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