Effect of tillage and irrigation on yield and soil properties under rice (Oryza sutiva)-wheat (Triticumz aestivum) system on a sandy clay loam soil of Uttaranchal

A field experiment was conducted for 2 years (2001-02 to 2002-03) to study the tillage (conventional and zero) and irrigations effects on direct seeded rice (Oryza Sativa L.) wheat (Triticulil aestivunl L. emend. Fiori & Paol.)productivity and soil physical conditions after ricc and wheat harvest. Tl~crew as a reduction up to 6% in soil organic carbon with conventional tillage both aftcr rice and wheat halvest. Soil organic carbon increased...