Abstract:

The objective of this study was to evaluate the effect of pendimethalin 450 g/L CS on barnyardgrass and Eclipta prostrate in the direct seeding rice field. The rice safety and control efficacy of barnyardgrass and Eclipta prostrate with pendimethalin 450 g/L CS was researched in direct seeding rice field. The results indicated that barnyardgrass and Eclipta prostrate were controlled effectively with the pre-emergence application of pendimethalin 450 g/L CS (the effective application 1085-1294 g/hm2), but the seedling emergence, leaf color, plant height and shoot fresh weight of rice was not affect in greenhouse. The rice safety with pendimethalin 450 g/L CS is much better than butachlor 50% EC after treatment by keeping the seedbed moist, but not be irrigation directly. The effect of pendimethalin 450 g/L CS on barnyardgrass and Eclipta prostrate were studied in the direct seeding rice field to provide the theoretical basis.