Vol. 11, Issue 9 (2022)

Author(s):
Kamalkant Yadav, Rohitashav Singh, DK Shukla, Jitendra Kumar, Prayasi Nayak, Ram Naresh, Kumar Gaurav and Aishwarya Mangaraj

Abstract:
The field experiment was conducted to study the effects of different tillage and nutrient management practices on the initial population and SPAD value in wheat (Triticum aestivum L.) during the rabi season (2020–21 and 2021-22) at the D2 block of the Norman E. Borlaug crop research centre of G. B. Pant University of Agriculture and Technology, Pantnagar, Udham Singh Nagar, Uttarakhand. The experiment was laid out in a split plot design with three replications. The experiment consisted of two factors, i.e., different tillage practises and nutrient management practices. The main plot has three treatments, i.e., zero tillage (ZT), reduced tillage (RT) and conventional tillage (CT) and a sub-plot has five treatments, i.e., RDF (N 120: P2O5 60: K2O 40), RDF + FYM (5 tonnes/ha), RDF + Zinc sulphate (25 kg/ha), 75% RDF + FYM (10 tonnes/ha) and 75% RDF + FYM (5 tonnes/ha) + Zinc sulphate (12.5 kg/ha). The experiment consisted of 15 treatment combinations with different tillage practices and NMP. The result apparently indicated that the zero tillage with the 75% RDF + FYM (5 tonnes/ha) + Zinc sulphate (12.5 kg/ha) had a non-significant effect on the initial population and SPAD value. Zero tillage attains maximum value with respect to all the parameters, followed by reduced and conventional tillage. Different nutrient management practices were found to have a non-significant impact on the initial population and SPAD value. RDF + FYM (5 tonnes/ha) + Zinc sulphate (12.5 kg/ha) achieve higher values in all parameters in 75% of cases.