Inquiries: Can corn herbicides be used in potato fields? Is herbicide used in potato fields used for planting or during growing season?
Answer: 1. Herbicides in corn fields can be used in potato fields. 1. Acetochlor can be used alone. 2. Can not use a single agent or compound containing atrazine ingredient.
Second, the use of time
1. Soil treatment period. It is advocated that soil treatment before and after potato sowing can effectively control annual weeds and broad-leaved weeds. 2. Growth period. For grassy weeds, stems and leaves are sprayed with herbicides to control grass weeds; for broad-leaved weeds, directional spray is used to control, and herbicides to control broad-leaved weeds are used for stem and leaf spray. Can be sprayed on weeds and cannot be sprayed on potatoes.
Third, the potato field soil commonly used herbicide 1.50% acetochlor EC, 100 to 120 ml per mu planted in open field, 80 to 100 ml per mu covered plant; 80% acetochlor EC, 60 to 70 ml per mu planted in open field , Covered with 50-60 ml per acre. 2.48% trifluralin EC, 100 to 120 ml per mu planted in open field, and 80 to 100 ml per mu planted in film. 3.48% Dilacramide EC (Seuding Ding Ling); 100-120 ml per mu planted in open field, 80-100 ml per mu planted in film. 4.33% Pendimethalin EC (Shi Tianbu, weeding pass) EC, open field planting 150 to 180 ml per mu, covered planting 130 to 150 ml per mu.
Fourth, soil treatment methods
1. Trifluralin and Bilearnide have the property of photodegradation. They should be used before sowing and immediately after mixing. Acetochlor and pendimethalin do not decompose in the presence of light, and shallow soils can improve control efficiency. 2. Covered film planting. The pharmaceutical agent was selected and watered at a rate of 30 kilograms per mu. The ridges were evenly sprayed and potatoes were grown after the film was applied. 3. Planting in the open field. Use trifluralin or one of the agents of diretin, watering 30 kilograms per acre, premedicated before sowing, mixed soil 3 to 5 cm immediately after application, and planted plastic film after 3 to 5 days; Amine or pendimethalin, one of the agents, after the potato is grown, 30 kg per acre, evenly sprayed the ground, and then use 2 to 3 cm of shallow mixed soil.
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