Document Type : Original Article


TIRUMALA KHEDALE ROAD Bramhini tal Rahuri Dist Ahmednagar


An experiment entitled "Effect of pre and post emengence herbicides on weed management in Sweet corn (Zea mays saccharata sturt.)" was conducted during the 2019 curriculum at Post Graduate Research Farm, Agronomy Section, College of Agriculture, Dhule. The trial consists of ten treatments that are randomly placed in blocks of three meanings. The results of experiment revealed that the experimental site was infested with broad leaved weeds, grasses and sedges. Amongst broad leaved weeds, Comelina benghalensis was the dominant while in grasses, Cynodon dactylon was most prevalent and sedge weed Cyprus rotundus occurred. From the results, it is concluded that sequential application of pendimethalin 1000 g a.i ha-1 (PE) fb tembotrione 120 g a.i ha-1 (30 DAS)(T6) not only reduced the total weed population, weed dry weight at different crop growth stages and weed index but also increased the weed control efficiency and grain yield and was found at par with pendimethalin 1000 g a.i ha-1 (PE) fb 2,4-D dimethyl amine 1000 g a.i ha-1 (PoE)(T7). The highest net returns of 117368 ha-1 was obtained with the treatment pendimethalin 1000 g a.i ha-1 (PE) fb tembotrione 120 g a.i ha-1 (30 DAS) (T6) and BC ratio of 2.97 was obtained with the treatment pendimethalin 1.00 kg a.i ha-1 (PE) fb 2,4-D dimethyl amine 1.00 kg a.i ha-1 (PoE) (T7) (2.97) followed by the treatment pendimethalin 1000 g a.i ha-1 (PE) fb tembotrione 120 g a.i ha-1 (30 DAS) (T6) (2.92) weed free check (T2) (2.71).


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