Effect of sowing time, nitrogen and zinc management on growth, yield and grain zinc concentration in wheat (Triticumaestivum L.).
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Date
2022
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Department of Agronomy Institute of Agricultural Sciences Banaras Hindu University Varanasi
Abstract
The present investigation entitled “Effect of sowing time, nitrogen and zinc management on growth, yield and grain zinc concentration in wheat (Triticumaestivum L.)” was conducted during the 2018-19 and 2019-20 at the Agriculture Research Farm, Banaras Hindu University. The field experiment was laid out in a split plot design assigning two sowing times and two nitrogen management in the main plot. Sowing time iscomprised of(i) D1 (Sowing in the second fortnight of November) and D2 (Sowing in the first fortnight of December) and Nitrogen management is comprised of N1(150 kg ha-1 Nitrogen [ 75 kg basal + 37.5 kg at Z20 (main shoot only) + 37.5 kg at Z37 (flag leaf visible)]) and N2(150 kg ha-1 Nitrogen [ 70 kg basal + 35.4 kg at Z20 (main shoot only) + 35.4 kg at Z37 (flag leaf visible) + 9.2 kg as 2% urea application at Z60 (beginning of anthesis stage)]).Fourzinc management in subplots are comprised ofi.e., (i) Z1(No zinc) (ii) Z2(Zinc @ 5kg ha-1), (iii) Z3(1.7 kg ha-1 Zinc as basal + 0.50% ZnSO4 spray at Z31(stem elongation) + 0.50% at Z75 (milking)), and (iv) Z4(1.7 kg ha-1 Zinc as basal + 0.50% ZnSO4 spray at Z60 (Anthesis) + 0.50% ZnSO4 spray at Z85 (Dough stage)).Significantly higher growth attributes, yield and yield attributing character, nutrient content of plant and grain after harvest, and economics of wheat(gross return, the net return, and B:C ratio) were recorded with sowing in the second fortnight of November, N2 (150 kg ha-1 Nitrogen [ 70 kg basal + 35.4 kg at Z20 (main shoot only) + 35.4 kg at Z37 (flag leaf visible) + 9.2 kg as 2% urea application at Z60 (beginning of anthesis stage)) and Z3 (1.7 kg ha-1 Zinc as basal + 0.50% ZnSO4 spray at Z31(stem elongation) + 0.50% at Z75 (milking)). While zinc concentration was more in Z4 treatment and protein content was more in D2. The nitrogen effect remained nonsignificant in most of the parameters.
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Nitrogen management