Effect of zero tillage and nitrogen level on wheat (Triticum aestivum) after rice (Oryza sativa)

A field experiment was carried out during the winter seasons of 1999–2000 and 2000–2001 to assess the performance of zero tillage in wheat (Triticum aestivum L. emend. Fiori & Paol.) under varying levels of nitrogen. The pooled analysis of data revealed that grain yield and number of effective tillers/m row increased significantly by 7.7 and 6.6%, respectively, with zero tillage over conventional tillage. Significant reduction in dry weight of weeds was observed with zero tillage over conventional tillage. Application of 150 and 180 kg N/ha being at par resulted in significantly higher grain yield over 120 kg N/ha. The growth and yield parameters showed significant variation owing to N application. The dry weight of weeds was minimum with 120 kg N and it increased significantly up to 180 kg N/ha.