Weed Management Programs in Grain Sorghum (Sorghum bicolor) Academic Article uri icon

abstract

  • A field study was conducted in Arkansas over three years to evaluate various herbicide treatments, including sequential and tank-mix applications for weed control in grain sorghum (Sorghum bicolor). The herbicide treatments used were quinclorac, atrazine + dimethenamid-p, S-metolachlor followed by (fb) atrazine + dicamba, dimethenamid-p fb atrazine, S-metolachlor + atrazine fb atrazine, S-metolachlor + mesotrione, and S-metolachlor fb prosulfuron. All herbicide treatments provided excellent (90% to 100%) control of Ipomoea lacunosa, Ipomoea hederacea var. integriuscula, and Sida spinosa by 12 weeks after emergence. Quinclorac and S-metolachlor fb prosulfuron provided the lowest control of Ipomoea lacunosa, Urochloa platyphylla, Amaranthus palmeri, and Ipomoea hederacea var. integriuscula. Weed interference in the non-treated control reduced grain sorghum yield by 50% as compared to the weed-free control. S-metolachlor + mesotrione and S-metolachlor fb prosulfuron reduced sorghum yields by 1009 to 1121 kg ha1 compared to other herbicide treatments. The five best herbicide treatments in terms of weed control and grain sorghum yield were quinclorac, atrazine + dimethenamid-p, S-metolachlor fb atrazine + dicamba, dimethenamid-p fb atrazine, and the standard treatment of S-metolachlor + atrazine fb atrazine.

published proceedings

  • AGRICULTURE-BASEL

author list (cited authors)

  • Bararpour, T., Hale, R. R., Kaur, G., Singh, B., Tseng, T., Wilkerson, T. H., & Willett, C. D.

citation count

  • 4

complete list of authors

  • Bararpour, Taghi||Hale, Ralph R||Kaur, Gurpreet||Singh, Bhupinder||Tseng, Te-Ming P||Wilkerson, Tessie H||Willett, Cammy D

publication date

  • 2019

publisher