Yield and Economics of Transplanted Rice as Influenced by Crop Establishment Methods, Weed and Nutrient Management Practices

Abstract

Field experiments were conducted in clay loam soil of Tamil Nadu Agricultural University, Coimbatore during rabi, 2009 and 2010 to evaluate the different crop establishment methods, weed and nutrient management practices in transplanted rice. The treatments consisted of four crop establishment methods and weed management practices in main plot and four nutrient management practices in sub plot. The results revealed that SRI planting (25 cm x 25 cm) and weeding with two way rotary weeder thrice at weekly interval starting from 15 DAT along with recommended dose of fertilizer (150:50:50 kg NPK ha-1 ) + 12.5 t FYM ha-1 + Azophosmet (seed and soil application) + PPFM (foliar spray) at active tillering, panicle initiation and 50 per cent flowering stage registered higher grain yield and net return. However, B:C ratio was higher with SRI planting and weeding with two way rotary weeder thrice at weekly interval starting from 15 DAT and application of recommended dose of fertilizer (150:50:50 kg NPK ha -1).