Vol. 11, Issue 5 (2022)

Author(s):
Rajesh Kumar, Sushil Dimree and Sumit Raj

Abstract:
An investigation entitled " Response of Sulphur, Zinc and biofertilizer on content, uptake and available of N, P, K, S, Zn and microbial population in Rice Mustard Cropping System was carried out at Student's Instructional Farm C.S. Azad University of Agriculture and Technology, Kanpur during 2017-18 and 2018-19. There were 11 treatments viz. T₁ = control, T₂ = 100% RDF, T₃ = 100% RDF+20kg S, T₄ =100% RDF+40kg S, T₅ =100% RDF+5kg Zn, T₆ =100% RDF+10 kg Zn, T₇ =100% RDF+20kg S+5 kg Zn, T₈ =100% RDF+40 kg S+10 kg Zn, T₉ =100% RDF+ Biofertilizer, T₁₀ =100% RDF+20kg S+5 kg Zn+ Biofertilizer and T₁₁ =100% RDF+40 kg S+10 kg Zn+ Biofertilizer applied in hybrid rice cv. PHB-71 to observe their effect on rice and their residual effect on succeeding crop mustard in cv. Rohini with fertilized uniformly 100% RDF in randomized block design with three replication. The soil of the experimental field was slightly alkaline in nature having pH (8.14), EC (0.46) dSm^-1, OC (0.40%), available N (195.92 kg ha^-1). In hybrid rice combination of sulphur, zinc and biofertilizer with 100% RDF improved content and nutrient uptake over 100% RDF alone. The residual effect of combined source applied in hybrid rice was found significant on succeeding mustard crop. Basis on pooled data of the both year highest nutrient content maximum content percent (1.46, 0.28, 0.25, 0.11and 35.16 & 0.5, 0.08,1.22, 0.88 and 21.37) of N, P, K, S and Zn in grain and straw of rice and maximum uptake (104.04 kg ha^-1, 19.84 kg ha^-1, 17.84 kg ha^-1, 8.05 kg ha^-1 and 2513.99 g/ha & 57.12 kg ha^-1, 8.75 kg ha^-1, 137.97 kg ha^-1, 99.40 kg ha^-1 and 2416.12g/ha) of N, P, K, S and Zn in grain and straw of rice was recorded with the application of T₁₁ (100% RDF+40 kg S+10 kg Zn+ Biofertilizer).