Influence of Twin Rows on Yield and Weed Control in Peanuts1

Abstract

Abstract Fresh weed weights and yields were compared between Florunner peanuts (Arachis hypogaea L.) grown in twin 18 cm rows and conventional 91 cm rows when subjected to a series of weed control systems ranging from none to intense. Reductions in grasses in the twin row spacing were evident in 2 out of 3 years in the untreated check, where grass infestations were at a maximum. Comparable reductions in broadleaves, and increases in yield were sporatic. While the twin row spacing affected weeds and yield in a favorable manner, the consistency was insufficient to premit any reduction in herbicide inputs.