Response of Rice Varieties at Varying Nitrogen Level
Mathi Venkata Vamsi Krishna *
Department of Agronomy, Faculty of Agriculture, Naini Agriculture Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj- 211007, Uttar Pradesh, India.
Shikha Singh
Department of Agronomy, Faculty of Agriculture, Naini Agriculture Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj- 211007, Uttar Pradesh, India.
Anu Nawhal
Department of Agronomy, Faculty of Agriculture, Naini Agriculture Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj- 211007, Uttar Pradesh, India.
Chalimadugu Sandeep Reddy
Department of Agricultural Technology, Royal Agricultural University, Criencester, United Kingdom.
Boyapati Vandana
Department of Agronomy, Faculty of Agriculture, Naini Agriculture Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj- 211007, Uttar Pradesh, India.
*Author to whom correspondence should be addressed.
Abstract
A field investigation to ascertain the response of rice varieties at varying nitrogen level was conducted at Crop Research Farm, Department of Agronomy, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, U.P, during the Kharif – 2022 with nine treatments replicated thrice in randomized block design, which consists of three rice varieties (NDR-359, Sahbhagi Dhan, BPT-5204) and three nitrogen levels (100, 120, 140 kg ha-1). The results revealed that application of nitrogen 120 kg ha-1 in Sahbhagi Dhan recorded significantly higher plant height (146.20 cm), dry weight (103.77 g hill-1), grain yield (4.27 t ha-1) and straw yield (7.23 t ha-1), maximum gross returns (1,00,166.70 INR ha-1), net returns (60,185.92 INR ha-1) and benefit cost ratio (1.52). However, number of tillers hill-1 (30.87), number of productive tillers hill-1 (8.93), number of grains panicle-1 (115.87) and harvest index (38.71%) were recorded significantly higher in BPT-5204 with nitrogen 120 kg ha-1.
Keywords: BPT-5204, NDR-359, nitrogen, rice, sahbhagi dhan, yield