Browse on keywords: weed row spacing
Search results on 12/12/13
7264. Veseth, Roger. 1990. Fertilizer placement-row spacing effects on wild oat.. STEEP Conservation Farming Update, Winter 1990, p. 13-16..
Researchers examined the effect of deep-banding N fertilizer versus a broadcast application, and also a paired-row configuration (15" between pairs) versus an 8" single-row pattern, on wild oats and the yield of spring barley. Deep-banding the N significantly increased barley yields, and reduced wild oat growth and competition, compared to broadcasting N. Banding was more effective in the paired row system than the single rows during a normal moisture year. With broadcast N, wider row spacing led to more wild oat growth.
10020. Koscelny, J.A., T.F. Peeper, J.B. Solie, and S.G. Solomon. 1990. Effect of wheat (Triticum aestivum) row spacing, seeding rate, and cultivar on yield loss from cheat (Bromus secalinus).. Weed Technology 4:487-492.
Field experiments were conducted in Oklahoma to detemine the effects of row spacing, cultivar, seeding rate and water or ammonium fertilizer injection in the row at seeding, on the competitiveness of hard red winter wheat with cheatgrass. All treatments were planted with either weed-free wheat or cheat-infested wheat seed. Decreasing row spacing from 23 to 8 cm increased yield of weed-free wheat at two of three locations and cheat-infested wheat in six of ten experiments. Increasing seeding rate from 265 to 530 seeds/m increased wheat yield. Injecting water at 20 ml/m of row at seeding did not increase wheat emergence or yield. Cheat seed production was not consistently suppressed by any one cultivar.