Author(s): D. K. SHUKLA, K. KUMAR, Y. PAL AND A. K. PRABHAKAR

Abstract: A field experiment was conducted at Instructional Dairy Farm, Nagla, G. B. Pant University of Agriculture & Technology Pantnagar during kharif 2018 to 2020 (3 years) to study the performance of various sources of nutrition on fodder yield and quality of sorghum and their continuous use effect on soil fertility. Experiment in fixed plot was laid out in Factorial Randomised Block Design replicated thrice. Forage sorghum varieties did not vary significantly in terms of fodder yields and B : C ratio. However, higher values of green and dry fodder yield and B : C ratio was under multicut varieties. Protein content was significantly higher in multicut variety over single cut while HCN content was significantly higher in single cut variety. Soil fertility parameters viz. pH, EC, Organic carbon, available phosphorus and available potash were not increased significantly by different varieties. Sources of nutrition significantly influenced the soil pH, organic carbon, available phosphorus, and available potash. Recommended dose of fertilisers (RDF) increased the soil pH significantly compared to organic sources of nutrition. Organic carbon content was significantly higher under vermicompost 10t/ha and FYM 20t/ha. Higher available phosphorus was under organic sources compared to recommended dose of fertilisers. Potassium content was higher under RDF and lowest under jeevamrit. Multicut forage sorghum variety can give higher fodder yield under organic nutrition. Vermicompost 10 t/ha may be good option for producing higher sorghum fodder yield and also improve the soil health.

DOI: 10.22271/09746315.2023.v19.i2.1715

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