Effect of different doses of phosphorus and sulphur application on growth and yield of dwarf wheat (Triticum aestivum L.)

The present investigation entitled "Effect of Different Doses of Phosphorus and Sulphur application on growth and yield of Dwarf Wheat (Triticum aestivum L.)." was conducted at Crop Research Form of National Post Graduate college, Barhalganj, Gorakhpur, U. P. during Rabi season of 2020-21 and 2021-22 with an objective to study the effect of Phosphorous and Sulphur on growth, yield and economics of wheat (Triticum aestivum L.). The soil of the experimental filled was silty loom in texture with low, medium and high in N. P. and K., respectively. The experimental site is situated in sub-tropical zone in Indo-gangetic plains. The experiment was laid out in Randomized Black Design (Factorial) and sown dated on 16-11-2020 and 18-11-2021 with two factors viz-A-Phosphorus i.e. 0, 30, 60 and 90 kg ha⁻¹ and B-Sulphur i. e. 0, 15, 30 and 45 kg S ha⁻¹ with three replication and harvested dated on 05-04-2021 and 07-04-2022, respectively. The result indicated that the Phosphorus-90 kg ha⁻¹ proved significantly superior over other Phosphorus level in terms of viz-plant height, number of tillers, leaf area index and dry matter acumulation and yield parameters viz-length of spike, number of grains spike⁻¹ and test weight and grain yield, straw yield, harvest index, gross return (Rs ha ⁻¹), net return (Rs ha ⁻¹) and B:C ratio. respectively, while Sulphur-45 kg ha⁻¹ gave significantly highest value in terms of plant height, number of tillers, leaf area index and dry matter acumulation and yield parameters viz-length of spike, number of grains spike⁻¹ and test weight and grain yield, straw yield, harvest index, gross return (Rs ha ⁻¹), net return (Rs ha ⁻¹) and B:C ratio over rest of the treatment during both the years, respectively. Phosphorous (90 kg ha⁻¹) and Sulphur (45 kg ha⁻¹) increased significantly the growth parameters, yield attributes and yield of wheat crop during both the years of experiment.