Effect of bio-fertilizers and organic manures on growth and yield of groundnut (Arachis hypogea L.)

Abstract

The field experiment titled “Effect of bio-fertilizers and organic manures on growth and yield of Groundnut.” was conducted during Zaid season of 2023 at the Crop Research Farm, Department of Agronomy, Naini Agricultural Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India. The experiment was done under Randomized Block Design with nine treatments and replicated thrice. The treatments combinations are T1: Rhizobium + Vermicompost – 1.3 t/ha, T2: VAM + Vermicompost – 1.3 t/ha, T3: PSB + Vermicompost – 1.3 t/ha, T4: Rhizobium + FYM – 8.0 t/ha, T5 VAM + FYM – 8.0 t/ha, T6: PSB + FYM – 8.0 t/ha, T7: Rhizobium + Poultry manure – 1.3 t/ha, T8: VAM + Poultry manure – 1.3 t/ha, T9: PSB + Poultry manure – 1.3 t/ha, are used. The result showed that treatment nine (T9) [PSB + Poultry manure –(1.3t/ha] recorded significantly higher plant height (41.43 cm), maximum number of root nodules/plant (64.07), higher plant dry weight (53.90 g/plant), maximum number of pods/plant (30.00), maximum number of kernels/pod (2.00), higher seed yield (2.56 t/ha), higher haulm yield (4.62 t/ha) compared to other treatment combinations. The maximum gross return (134006.00 INR/ha), maximum net returns (87156.00 INR/ha), highest benefit cost ratio (1.86) was also recorded in treatment 9 [PSB + Poultry manure – (1.3 t/ha)].