Vol. 11, Issue 6 (2022)

Weed count was significantly less in intercropping of cowpea (pendimethalin 0.75 kg/ha, pre-em) f.b. earthing up treatment, which was at par with two hand weeding, atrazine 1kg per ha^-1,pre-em f.b straw mulching, intercropping of cowpea f.b earthing up, atrazine band plus one interculture and plastic mulch treatments. Periodic weed dry matter accumulation was significantly less in intercropping of cowpea (pendimethalin 0.75 kg/ha^-1, pre-em) f.b. earthing up, and two hand weedings (3 and 5 WAS), atrazine 1kg per ha^-1, pre-em f.b. straw mulching and intercropping of cowpea (pendimethalin 0.75 kg/ha^-1, pre-em) f.b. earthing up as compared to atrazine + pendimethalin (1.0 + 0.75 kg/ha^-1), atrazine 1.0 kg/ha^-1 f.b earthing up, atrazine 1.0 kg f.b 2,4-D and ridge planting treatments. However significantly high weed count and weed dry matter accumulation was recorded in unweeded (control) plot as compared to other treatments.

All growth attributes along with yield parameters were significantly better in intercropping of cowpea (Pendimethalin 0.75 kg/ha^-1, pre-em) f.b. earthing up which were at par with two hand weedings (3 and 5 WAS) and atrazine 1kg per ha^-1, pre-em f.b. straw mulching. Highest seed yield was obtained in in intercropping of cowpea (pendimethalin 0.75 kg/ha^-1, pre-em) f.b. earthing up (58.33 q/ha^-1) which were at par with with two hand weedings (58.10 q/ha^-1) and atrazine 1kg per ha^-1, pre-em f.b. straw mulching (57.63 q/ha^-1) which was 46.19%, 45.61% and 44.43%. However significantly less yield was recorded in weedy check (39.90 q/ha^-1) as compared to all other treatments.