1Ph.D. Scholar, Department of Agronomy
2Professor and Campus Head of ARS
3Director of Research and Professor of Agronomy
4Assistant Professor, Main Agriculture Research Station, Gangavathi583227KarnatakaIndia
5Professor, Department of Soil Science and Agricultural Chemistry
6Scientist (Agricultural Entomology), AICRP on Rice Scheme, ARS, Gangavathi583227KarnatakaIndia
7Assistant Professor (Soil and Water Engineering), University of Agricultural Sciences, Raichur584104KarnatakaIndia
Agricultural Research Station, Gangavathi, University of Agricultural Sciences, Raichur, Karnataka583227India
*Corresponding author's Email: keertiprevankar@gmail.com
Online published on 11 February, 2021.
A field experiment was conducted at Gangavathi, Karnataka, during the rainy (kharif) season of 2017 and 2018, to know the response of genotypes to nutrient management under drip irrigation in dry direct-seeded rice. The pooled mean of 2 years indicated that, drip fertigation with water-soluble nitrogen fertilizer (WSNF) in 8 splits at 10 days interval recorded 23% higher grain (5,197 kg/ha) and 20% higher straw yield (5,637 kg/ha) than soil application with 100% NPK fertilizer. 'GNV 10– 89′ variety recorded higher grain (5,244 kg/ha) and straw yield (5,696 kg/ha) than 'BPT 52– 04′. Drip fertigation of WSNF applied in 8 splits at 10 days interval, recorded significantly higher nitrogen uptake (170.1 kg/ha) and nitrogen-use efficiency (34.6 kg/ha) than soil application with 100% NPK fertilizer.
Direct-seeded rice, Fertigation, Rice genotypes, Split application
