Effect of phosphate rich organic manure (PROM) on soil fertility and nutrient uptake of wheat

Abstract

Wheat, a carbohydrate-rich grain, provides 71% of its calories from carbohydrates and is a vital source of dietary fiber, protein (13% gluten), and essential nutrients like iron, magnesium, and zinc, contributing to human health. Phosphate Rich Organic Manure (PROM) enhances plant growth by releasing organic phosphorus slowly, improving soil health, and boosting microbial activity. Its environmentally friendly nature supports sustainable agriculture while maintaining soil fertility. A field investigation entitled “Effect of Phosphate Rich Organic Manure (PROM) on Soil Fertility and Nutrient Uptake of Wheat “was conducted in rabi season of 2023- 2024 at the Instructional Farm, Post -Graduate Institute, Mahatma Phule Krishi Vidyapeeth, Rahuri. The experiment was laid out in RBD with seven treatments replicated 3 times. The study evaluated the impact of Phosphate Rich Organic Manure (PROM) on soil properties in a wheat field after harvest. No significant changes were observed in pH, electrical conductivity, or organic carbon content, with mean values recorded as 8.14, 0.37 dS m⁻¹, and 0.59%, respectively. Maximum nutrient depletion and nitrogen uptake (grain: 84.79 kg ha⁻¹, straw: 23.60 kg ha⁻¹) were observed with 100% P₂O₅ through SSP, while minimum values occurred in the control plot, highlighting the impact of phosphorus sources on wheat productivity and soil fertility. Maximum nitrogen (108.39 kg ha⁻¹) and phosphorus (30.49 kg ha⁻¹) uptake were observed with 100% P₂O₅ through SSP, followed by 25% PROM + 75% SSP, while the lowest uptake occurred in the control, highlighting the effectiveness of integrated phosphorus management.