Indian Journal of Weed Science
  • Year: 1989
  • Volume: 21
  • Issue: 3and4

Studies on Critical Stage of weed Removal in Soybean

  • Author:
  • Jay G. Varshney
  • Total Page Count: 4
  • Page Number: 49 to 52

*Present Adress: Directorate of Pulses Research (ICAR), Kalyanpur, Kanpur-208 024

1Contribution from ICAR Reasearch Complex for NEH region, Shillong

Abstract

In a two year study conducted during 1983 and 1984 at ICAR Research Complex for NEH Region, Shillong recorded a drastic reductions in grain yield due to delay in weeding beyond 40 days of sowing. Weeding at 40 DAS reduced weed density and biomass by 46 and 60% and saved 100.6, 3.8, 81.9 kg N, P, K/ha per year (on two years mean basis) in comparison of unweeded check.