Impact of Bio-NPK Consortia and Zinc on Nutrient Uptake and Quality of Soybean [Glycine max (L.) Merrill] in Inceptisol

Abstract

Soybean is known as the “golden bean” of the 21st century. Though soybean is a legume crop, yet it is widely used as an oilseed. It is the third largest oilseed crop of India after rapeseed, mustard and groundnut and ranks first in edible oil in the world. A field experiment was conducted to investigate the impact of bio-NPK along with zinc on nutrient uptake and quality of soybean in kharif  2023 at Krishi Vigyan Kendra, Dhule. The field experiment consisted of eight treatments viz., T1 (Absolute control), T2 [GRDF (50:75:45 N: P2O5: K2O kg ha-1  + 10 t FYM  ha-1)], T3 (GRDF 100% + ZnSO4 @ 20 kg ha-1 and 4 ml bio-NPK consortia), T4 (GRDF 100% + ZnSO4 @ 20 kg ha-1 and 6 ml bio-NPK consortia), T5 (GRDF 100% + ZnSO4 @ 20 kg ha-1and 8 ml bio-NPK consortia), T6 (GRDF 75% + ZnSO4 @ 20 kg ha-1and 4 ml bio-NPK consortia), T7 (GRDF 75% + ZnSO4 @ 20 kg ha-1and 6 ml bio-NPK consortia), T8 (GRDF 75% + ZnSO4 @ 20 kg ha-1 and 8 ml bio-NPK consortia) were replicated thrice under randomized block design. The application of bio-NPK consortia and ZnSO4.Significantly highest N, P, K and Zn uptake in grain (159.48, 13.97, 31.95 kg ha-1 and 79.54 g ha-1, respectively) were recorded in treatment (T5), which received GRDF 100% + ZnSO4 @ 20 kg ha-1and 8 ml bio-NPK consortia, while at par with, GRDF 100% + ZnSO4 @ 20 kg ha-1 and 6 ml bio-NPK consortia (T4) noted the higher uptake of N, P, K and Zn. The significantly highest protein content (33.68%) in the treatment T5 and followed by T4) i.e., 33.65%.