Abstract

An experiment was conducted at Agronomy Instructional Farm, Chimanbhai Patel College of Agriculture, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar (Gujarat) to integrated weed management studies in mustard [Brassica juncea (L.) Czern and Coss.ex Coss. during rabi season of 2011–12. The experiment comprising 12 treatments viz., weedy check, interculturing+1 HW at 25 DAS, pendimethalin @ 0.5 and 0.75 kg/ha PE alone and along with HW at 25 DAS with each level, oxadiargyl @ 75 and 90 g/ha PE alone arid along with HW at 25 DAS with each level, oxyfluorfen @ 100 g/ha as PE and weed free was conducted in a randomized block design with three replications. The results of the experiment indicated that higher values of plant growth characters viz., dry matter production per plant (51.00 g) and yield attributing characters viz., number of siliquae per plant (280.37), number of seeds per siliqua (14.70) and test weight (4.25 g) were recorded under weed free treatment. Pendimethalin @ 0.5 kg/ha PE+1 HW at 25 DAS, oxadiargyl @ 75 g/ha PE+1 HW at 25 DAS and pendimethalin @ 0.5 kg/ha PE were found equally effective in respect to these characters which were significantly higher than rest of the treatments. Among the treatments, weed free treatment recorded significantly higher seed yield (1738 kg/ha), stover yield (4937 kg/ha) and harvest index (26.03%) of mustard than rest of the treatments. Among the treatments tried in this experiment, pendimethalin @ 0.5 kg/ha PE+1 HW at 25 DAS was found the best treatment by recording maximum net realization (Rs. 46,277/ha) and benefit: cost ratio (3.55). Besides weed free condition, pendimethalin @ 0.5 kg/ha PE+1 HW at 25 DAS was found more effective in reducing the total weed population resulting in less dry weight of weeds (147.67 kg/ha). Oxadiargyl @ 75 g/ha PE+1 HW at 25 DAS was found equally effective with this respect.