Wheat field management technology
1. Press the young seedlings at the 3-leaf stage of the green shoots, and use the roller compactor to suppress 1 or 2 times according to the soil moisture and seedling conditions. The ridge-and-ridge method is adopted to prohibit high-speed operation.
2. Chemical weeding to control broadleaf weeds can use 72% 2,4-D butyl emulsifiable concentrate 900ml per hectare at 3 leaf stage, or 10.05g~19.5g per hectare with 75% superstar dry suspension agent, choose sunny, no wind When spraying without dew, apply evenly to prevent monocotyledonous wild oats, valerian with 6.9% hummus concentrated emulsion of 750ml per hectare, or 10% éª åŸ emulsifiable concentrate of 525ml per hectare, or 65% of wild yan with 1.5kg per hectare. Spray with water.
3. Prevention and control of pests and diseases In the wheat field, there are 30 armyworms per square meter. At the age of 3 to 4 years of larvae, spray pyrethroid insecticides from 300ml to 450ml per hectare. For the prevention and control of scab, 50% carbendazim or 50% Dover mixture 1.5kg~2.25kg per hectare, sprayed with water. When there are 800 aphids per hundred ears, 50% anti-converse WP can be sprayed with 30kg to 40g per hectare and 30kg to 60kg with water.
4. Before the topdressing stage and the flowering stage, use 2.25kg of potassium dihydrogen phosphate per hectare, add 5kg of urea, add 2kg of 50% Dufu mixture, spray on water. If selenium-enriched flour is produced, 1.5 kg of selenium fertilizer can be used per hectare, and 100 kg of water can be sprayed. In order to save operating costs, pesticides can also be mixed with potassium dihydrogen phosphate and selenium fertilizer and then sprayed with water.
5. Where there is irrigation condition during the growth period, if there is spring drought, water is irrigated once from the 3rd leaf stage to the tillering stage of wheat. 0.5kg of urea per acre from the total amount of fertilizer is better with water.
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