Field control efficacy of different herbicide dosages and their effects on maize safety
In order to screen the efficient and safe herbicide dosage and synergistic effect of additives in maize field,and improve maize production efficiency,the effect of field soil spraying on weed control in maize fields and its impact on safety and yield of maize was investigated,in Jiamusi City,acetochlor(81.5％emulsifiable concentrate),atrazine(38％suspension)and two herbicide additives were selected,and each herbicide combination was set with two concentrations of low and high,and each additive was set with three concentrations of low,medium and high.The results showed that pre-emergence weeding had a control effect on all field weeds,and the weed control rate in the field was also reduced with the reduction of herbicide dosage,and the weed control rate could be increased by adding additives.In general,1 472 g·hm-2 acetochlor+11 482 g·hm-2 atrazine+225 mL·hm-2 additives 2 had the best control effect.
万方数据
维普
