1National Agri-food Biotechnology Institute, Industrial Area Phase-8, Mohali
2International Maize and Wheat Improvement Center (CIMMYT)-India office, Pusa, New Delhi
Department of Agronomy, CCS Haryana Agricultural University, Hisar-125 001, India
*Corresponding authors e-mail: mainpal.mehla@gmail.com
Online published on 25 February, 2016.
Field studies were conducted during 2008–09 and 2009–10 at Hisar, India to assess the effect of weed competition on crop growth and yield of field pea. Weed density increased up to 60 days and then decreased at later stages of crop growth. Seed yield of field pea was decreased by 50% when weeds were allowed to compete for the entire season. The critical period for weed control was 21–63 days in year 1 and 20–70 days in year 2 to achieve 95% of weed-free yield. It is therefore concluded that, to minimize yield loss due to weed competition in field pea, weed control measures should be targeted to avoid weed competition between 20–70 days after sowing.
Critical period, Field pea, Seed yield, Weeds
