Rai, APBarwal, Aditya2023-12-012023-12-012023-11-23Barwal, A. 2023. Effect of Integrated Nutrient Management on Active Pool of Soil Organic Matter in Black Gram (Vigna mungo) under Dryland Subtropics of Jammu,M.Sc. Thesis, SKUAST-Jammu, India.37141https://krishikosh.egranth.ac.in/handle/1/5810202006The present investigation entitled “Effect of Integrated Nutrient Management on Active Pool of Soil Organic Matter in Black gram(Vigna mungo) under Dryland Subtropics of Jammu” was carried out during Kharif 2022 at the Research Farm of ACRA Dhiansar, Jammu. The experiment was laid out in an RBD with three replications and nine treatments which were T1-Control, T2-100% recommended NPK, T3-100% recommended NPK + Sulphur, T4-100% recommended NPK + Azophos, T5-100% recommended NPK + Sulphur + Azophos, T6-75% recommended NPK + 25% P through FYM + Sulphur + Azophos, T7-75% recommended NPK +25% P through Vermicompost + Sulphur + Azophos, T8-50% recommended NPK + 50% P through FYM + Sulphur + Azophos and T9-50% recommended NPK +50 % P through Vermicompost + Sulphur + Azophos. The variety ‘Uttara’ of black gram was sown in the first week of July at 30 cm × 10 cm spacing using the seed rate of 20 kg ha-1. The soil of the experimental plot was sandy loam in nature having pH value of 6.70 and EC of 0.21 dSm-1. It was moderately fertile being low in organic carbon (3.2 g kg-1) and available nitrogen (134.43 kg ha-1) whereas moderate in phosphorus (10.23 kg ha-1) and potassium (110.74 kg ha-1). The effect of treatments has been observed significantly higher in biological properties of soil including nutrient use efficiency, yield attributes and yield of black gram and non-significant effect was observed in physico-chemical properties except phosphorus and potassium. Non-significant differences were seen in case of active carbon pool except very labile carbon pool. Overall, the best treatments recorded were the treatments with the combination of inorganic and organic treatments and among them, the best one was treatment T7- 75 % recommended NPK + 25% P through Vermicompost + Sulphur + Azophos over control in black gram.EnglishThesis