Department of Agronomy, CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India.
1 Professor of Weed Science, Cornell University, Ithaca, NY, U. S. A.
Diclofop, metsulfuron, 2, 4–0 Na, diflufenican, clodinafop, fenoxaprop, tralkoxydim and isoproturon applied in wheat did not exhibit any adverse effect on various kharif crops of mungbean, maize, cowpea, pigeon pea, pearl millet and cotton. Chlorsulfuron at 30 g ha−1 sprayed in wheat had no residual effect on mungbean but at 60 and 120 g ha−1 had residual toxicity to mungbean. Compared to mungbean and cotton, maize was more sensitive to chlorsulfuron. Sulfosulfuron at 25 g ha−1 and pendimethalin at 1500 g ha−1 applied in wheat also caused residual toxicity to maize but not to mungbean and cotton. Metribuzin at 300 and 400 g ha−1 caused significant residual toxicity to mungbean and maize, and at 400 g ha−1 to cotton. Chlorsulfuron, sulfosulfuron, metribuzin and pendimethalin significantly reduced the density and dry weight of Trianthema portulacastrum at 210 days after treatment.
