Nutrient Availability, Removal and Yield of Mung bean (Vigna radiata L.) under different Integrated Nutrient Management Practices in Western Uttar Pradesh

Abstract

A study entitled “Nutrient Availability, Removal and Yield of Mung bean (Vigna radiata L.) under different Integrated Nutrient Management Practices in Western Uttar Pradesh” was carried out during 2022 & 2023, at CRC farm, SVPUAT campus, Meerut. The experimental field was uniform and leveled, sandy loam in texture, low in available nitrogen (193.3 kg ha-1), medium in available phosphorus (12.4 kg ha-1) and potassium (138.2 kg ha-1) with slightly alkaline in reaction (pH 7.82). The experiment was carried out in Randomized Block Design with four replications and 11 treatments. The treatments comprised of T1 (control), T2 100% NPK, T3 100% NPK + Rhizobium + PSB, T4 75% NPK + Vermicompost @ 0.34 t ha-1 + Rhizobium + PSB, T5 75% NPK + Poultry manure @ 0.17 t ha-1 + Rhizobium + PSB, T6 50% NPK + Vermicompost @ 0.34 t ha-1 + Poultry manure @ 0.17 t ha-1 + Rhizobium + PSB, T7 50% NPK + Vermicompost @ 0.66 t ha-1, T8 50% NPK + Poultry manure @ 0.34 t ha-1, T9 50% NPK + Vermicompost @ 0.66 t ha-1 + Rhizobium + PSB, T10 50% NPK + Poultry manure @ 0.34 t ha-1+ Rhizobium + PSB and T11 125% NPK. Treatments effects of integrated nutrient management were evaluated in terms of growth and yield of mung bean. The results also revealed that among the different integrated nutrient management treatments the highest grain yield (13.9 & 14.5 q ha-1) was obtained under 75% NPK + Vermicompost @ 0.34 t ha-1 + Rhizobium + PSB which were at par (13.2 & 14.2 q ha-1) with the application of 75% NPK + Poultry manure @ 0.17 t ha-1 + Rhizobium + PSB during both the years. The highest total NPK content and uptake by grain and straw found with 75% NPK + Vermicompost @ 0.34 t ha-1 + Rhizobium + PSB was at par with 75% NPK + Poultry manure @ 0.17 t ha-1 + Rhizobium + PSB. The results revealed that the highest net monetary return (₹88083 & 92627 ha-1) and B: C ratio (2.61 & 2.82) was obtained with 75% NPK + Vermicompost @ 0.34 t ha-1 + Rhizobium + PSB, which was found at par with 75% NPK + Poultry manure @ 0.17 t ha-1 + Rhizobium + PSB during both the years. On the basis of two year experiment it can be concluded that application of 75% NPK + Vermicompost @ 0.34 t ha-1 + Rhizobium + PSB may be recommended for achieving higher yield and net return from mung bean crop and maintaining soil sustainability.