Impact of Multi-micronutrient Mixture Grades on Yield and Chemical Composition of Soybean (Glycine max)

A field experiment was conducted during the Kharif seasons of 2022, 2023, and 2024 at the Tribal Research cum Training Center Farm, Anand Agricultural University, Devgadh Baria, Gujarat, to evaluate the effect of multi-micronutrient fertilizer grades on soybean productivity and economics under loamy sand soil conditions. Eight treatments comprising RDF (45:60:00 NPK kg ha⁻¹) alone and in combination with foliar and soil application of different multi-micronutrient grades were tested in a randomized block design with four replications. Results revealed that application of RDF along with foliar spray of 1.0% multi-micronutrient mixture Grade-III or Grade-IV at 30 and 60 DAS significantly improved seed yield, straw yield, and net returns compared to RDF alone. The study highlights the importance of multi-micronutrient fertilization in correcting hidden nutrient deficiencies and enhancing soybean productivity under intensive cropping systems.