1M.Sc. Scholar, Department of Agronomy, Odisha University of Agriculture and Technology, Bhubaneswar, Orissa751 003
2Professor, Department of Agronomy, Odisha University of Agriculture and Technology, Bhubaneswar, Orissa751 003
3Professor and Head, Department of Agronomy, Odisha University of Agriculture and Technology, Bhubaneswar, Orissa751 003
College of Agriculture, Odisha University of Agriculture and Technology, Bhubaneswar, Orissa751 003
*Corresponding author's Email: mrsouat@gmail.com
Online Published on 24 June, 2022.
A field experiment was conducted at Agronomy Main Research Farm, Bhubaneswar, Odisha, during pre-winter season of 2019, to optimize nutrient-management practices through foliar feeding in ‘Mahuri’ blackgram [Vigna mungo (L.) Hepper] cultivar. The treatments were soil test-based fertilizer recommendation (STBFR), STBFR + 2% NPK (19: 19: 19) once, STBFR + 2% NPK (19: 19: 19) twice, STBFR + 0.2% Borax spray, STBFR + 0.5% ZnSO4 spray, STBFR + 0.2% Borax + 0.5% ZnSO4 spray, STBFR + 2% NPK + 0.2% Borax spray, STBFR + 2% NPK + 0.5% ZnSO4 spray, STBFR + 2% NPK + 0.2% Borax + 0.5% ZnSO4 spray, water spray (control). Application of STBFR + 2% NPK (19: 19: 19) + 0.2% Borax + 0.5% ZnSO4 spray prior to anthesis resulted in the maximum seed yield (804 kg/ha) and stover yield (1,648 kg/ha). Maximum number of nodules/plant (12.2), pods/plant (33.4) and seeds/pod (7.73) were obtained from the same treatment. An uptake of 63.2 kg N, 6.25 kg P, 36.0 kg K, 0.75 kg Zn and 0.62 kg B/ha was recorded under the nutrient-management practice of STBFR + 2% NPK (19: 19: 19) + 0.2% Borax + 0.5% ZnSO4 spray. Similarly, the maximum net returns of ₹21,224/ha and benefit: cost ratio of 1.89 were obtained under the same treatment.
Blackgram, Economics, Foliar spray, Nutrient uptake, Seed yield, STBFR, Stover yield
