Vol. 10, Issue 12 (2021)

Author(s):
AK Singh, Anand Kumar Pandey, Ankit Singh, Alok Kumar Singh, RK Yadav, Ashish Kumar Srivastava and Sudhanshu Singh

Abstract:
Crop productivity and quality are dependent on better availability of essential crop nutrients. However, application of nutrients at best optimum is essential depending on genotype for improved yield and quality. Field experiment was carried out to assess the influence of various levels of chemical and NPK fertilizers (F1: RDF-NPK Zn @ 80-60-40-5 kg N-P₂O₅-K₂0-Zn kg/ha), F2: F₁ + 70 kg CaSO₄ ha^-1, F3: F₂ + 1% KCl foliar spray at panicle initiation and F4: F₃ + Brown manuring with sesbania) on nitrogen uptake and yield components of drought tolerant rice variety under rainfed condition (Sahbhagi Dhan) at Instructional Farm, Acharya Narendra Deva University of Agriculture & Technology. Results revealed that application of (F4: F₃ + Brown manuring with sesbania) improved the nitrogen uptake, nitrogen use effciency and yield related traits viz. productive tillers ^m-2, panicle length, 1000 grain weight, grain yield, as compared to other NPK levels. Among treatments F4 performed better than treatments. Results conclude that drought tolerant variety can yield better, by applying NPK combination with 70 kg CaSO₄ ha^-1, 1% KCl and sesbania with acceptable characteristics as compared to other treatments.