A Complete Guide to Weed Control Methods in Summer Soybean Fields
How to control weeds in summer soybean? Please provide methods. After summer soybean sowing, soil and climatic conditions favor weed germination and growth, and if chemical control is not carried out in time, it can easily lead to a weed infestation. In production, herbicides should be applied early for control based on the weed occurrence characteristics in summer soybean fields and the properties of the herbicides. Soil-incorporated treatment: after land preparation,...
How to control weeds in summer soybean? Please provide methods
After summer soybean sowing, soil and climatic conditions favor weed germination and growth, and if chemical control is not carried out in time, it can easily lead to a weed infestation. In production, herbicides should be applied early for control based on the weed occurrence characteristics in summer soybean fields and the properties of the herbicides.
Soil-incorporated treatment: after land preparation, apply 100-150 ml of 48% trifluralin emulsifiable concentrate or 200-150 ml of 33% pendimethalin emulsifiable concentrate per mu, add 30 kg of water and spray on the soil surface, then incorporate into the top 3-5 cm soil layer. It has good control efficacy against annual grass weeds.
Soil treatment: after sowing and before emergence, apply 100-150 ml of 50% acetochlor emulsifiable concentrate or 200-250 ml of 48% alachlor emulsifiable concentrate per mu, add 30-40 kg of water and spray. To broaden the weed control spectrum, you can apply 100-150 ml of 50% acetochlor emulsifiable concentrate plus 50 ml of 48% clomazone emulsifiable concentrate per mu, or 100 ml of 50% acetochlor emulsifiable concentrate plus 35-45 ml of 48% clomazone emulsifiable concentrate plus 4 g of 10% chlorimuron, add 40-50 kg of water and spray.
Foliar treatment: for fields with many grass weeds, at the 2-4 leaf stage of soybean and the 2-5 leaf stage of weeds, select per mu 40-70 ml of 15% fluazifop-p-butyl emulsifiable concentrate or 40-60 ml of 12.5% haloxyfop emulsifiable concentrate, 60-100 ml of 10% quizalofop emulsifiable concentrate, 40-70 ml of 5% quizalofop-p-ethyl emulsifiable concentrate (choose one) and spray. For fields with many broadleaf weeds, at the 1-3 leaf stage of soybean and the 3-4 leaf stage of weeds, apply 40-50 ml of 25% fomesafen aqueous solution per mu and spray.
When both types of weeds occur heavily, fomesafen can be mixed with fluazifop-p-butyl, haloxyfop, quizalofop-p-ethyl, or quizalofop to control both types of weeds. Application should be carried out at noon on a windless sunny day, with no less than 40 kg of water added per mu.
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