Author(s):

Chhote Lal Rawat, S Dimree, RK Pathak, US Tiwari and Raj Kumar

Abstract: As investigation was carried out during 2018-19 and 2019-20 at Student Instructional Farm, Department of Agronomy, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur with main objective to find out the technically feasible, qualitative, productive and economically viable effect of Sulphur and Zinc maize-wheat cropping rotation and to evaluate the response of these treatments on maize-wheat cropping system. The soil of university research farm is an Entisol with sandy loam texture, deficient in organic carbon available N and available Zn but medium in case of available P, K and available S. The pH and EC of soil are in normal range and responsive to macro and micro nutrients applied in balanced manner in view of the deficiency of these nutrients and vital metabolic role of the above nutrients in maize-wheat cropping system and studied in respective manners. Effect of different inorganic sources as 9 treatments comprises of viz., T₁ - Control, T₂- 50% NPK, T₃- 100% NPK, T₄- 50% NPK + S, T₅- 100% NPK + S, T₆- 50% NPK + Zn, T₇ -100% NPK + Zn, T₈ - 50% NPK + S + Zn and T₉ - 100% NPK + S + Zn. Results recorded significantly highest N content was in T₉ whilst lowest in T₁ (control) during course of investigation. The maximum protein content was noted with the application of T₉ (100% RDF+S+Zn) respectively. The data clearly indicated that addition of Sulphur and Zinc significantly enhanced the protein content during first and second year respectively. However the maximum content was noted with the application of T₉ (100% RDF+S+Zn) but remained at par with T₅ (100% RDF+S) and T₇ (100% RDF+Zn) and significantly superior over rest of the treatments on pooled mean basis. The graded application of RDF from 50 to 100% has further increased the concentration of protein. The maximum protein value content was noted with the application of T₉ (100% RDF+S+Zn). The data clearly indicated that addition of Sulphur and Zinc enhances the protein content significantly the first and second year respectively. But remained at par with T₅ (100% RDF+S) and T₇ (100% RDF+Zn) and significantly superior over rest of the treatments on pooled mean basis during course of investigation.

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