Vol. 8, Issue 12, Part F (2025)
Abstract
A field experiment was conducted during kharif season of 2024 at the Zonal Agriculture Research Station, Pune (Maharashtra) to study the effect of Micronutrient application on growth and yield of soybean (Glycine max L.). The experiment was laid out in randomised block design having ten treatments with three replications. The treatments comprised T1 - RDF, T2 - GRDF, T3 - GRDF + Spraying of Phule Micronutrient Gr II @ 1% at 30 DAS and 45 DAS, T4 - GRDF + Spraying of Phule Micronutrient Gr II @ 2% at 30 DAS and 45 DAS, T5 - GRDF + Drenching of Phule Micronutrient Gr II @ 1% at 30 DAS and 45 DAS, T6 - GRDF + Drenching of Phule Micronutrient Gr II @ 1.5% at 30 DAS and 45 DAS, T7 - GRDF + Soil application of Micronutrient Gr I @ 10 kg ha-1 at the time of Sowing, T8 - GRDF + Soil application of Micronutrient Gr I @ 20 kg ha-1 at the time of Sowing, T9 - GRDF + Micronutrient Gr I @ 10 kg ha-1 at the time of sowing + Phule Micronutrient Gr II @ 1% spray at 30 DAS and 45 DAS, T10 - GRDF + Micronutrient Gr I @ 20 kg ha-1 at the time of sowing + Phule Micronutrient Gr II @ 1% spray at 30 DAS and 45 DAS. The soil of the experimental site was clay loam in texture. The findings of the present investigation revealed that the application of GRDF + Micronutrient Gr I @ 20 kg ha⁻¹ at the time of sowing + Phule Micronutrient Gr II @ 1% spray at 30 DAS and 45 DAS (T10) noted significantly highest uptake of N, P, K (187.83, 41.37 and 43.74 kg ha⁻¹, respectively) in seed and stover (21.60, 6.68, 31.85 N, P, K kg ha⁻¹, respectively) and higher uptake of Fe, Mn, Zn, Cu (545.19, 212.74, 250.09, 119.21 g ha⁻¹ respectively) in seed and also in stover (647.32, 118.60, 97.66,17.34 g ha⁻¹ of Fe, Mn, Zn, Cu respectively). In case of total uptake of macronutrients and micronutrients the application of GRDF + Micronutrient Gr I @ 20 kg ha⁻¹ at the time of sowing + Phule Micronutrient Gr II @ 1% spray at 30 DAS and 45 DAS (T10) recorded significantly higher total uptake of N, P, K (209.43, 48.05 and 75.60 kg ha⁻¹) and higher uptake of Fe, Mn, Zn, Cu (1192.52, 333.12, 341.75, 143.07 g ha⁻¹), respectively. Significantly the highest available macronutrients, viz., available nitrogen (296.30 kg ha⁻¹), available phosphorus (30.56 kg ha⁻¹), available potassium (316.03 kg ha⁻¹) and available micronutrients viz., available iron (6.34 mg kg⁻¹), available manganese (2.72 mg kg⁻¹), available zinc (2.62 mg kg⁻¹) and available copper (3.60 mg kg⁻¹), were found in treatment GRDF + Spraying of Phule Micronutrient Gr II @ 1% at 30 DAS and 45 DAS (T3). The chemical properties of soil (pH, EC and Organic carbon%) were non-significant at harvest of soybean.
