Journal of FARM SCIENCES, Vol 30, No 2 (2017)

Font Size:  Small  Medium  Large

Nitrogen management for optimum productivity of dry direct seeded rice (Oryza sativa, L.) under medium deep black soils

B. G. MASTHANA REDDY, G. S. GURUPRASAD, D. PRAMESH, K. MAHANTASHIVAYOGAYYA, MOHAMMED IBRAHIM

Abstract


Field experiment was conducted at Agricultural Research Station, Gangavathi, Karnataka during the rainy season of2013 and 2014 to study the effect of two nitrogen levels,viz., 120:60:50 and 150:60:50 kg, N, P2O5 and K2O/ha and four splitsand application timings on the performance of dry direct seeded rice. The data revealed that application of 150:60:50 kgN,P2O5 & K2O/ha with full P and K applied as basal and nitrogen in three equal splits at sowing, active tillering and panicleinitiation recorded significantly higher grain yield (46.62 q/ha) than other treatment combinations and resulted in higher netreturns (` 43495/ha) and benefit-cost ratio (2.09). Improved yield parameters like higher number of panicles per squaremeter and higher panicle weight have contributed for higher grain yield in the above treatments

Full Text: PDF