According to many years of practice, the timely and effective implementation of the “three sprays†is a technical measure with disasters and disasters, without disasters, and with low input and high efficiency. In particular, the warm winter weather, the foothills of the wheat field, and some wheat fields are mad, long and prosperous. In addition, the spring rains are timely and the seedlings are well. If there are no major natural disasters, it is estimated to be a big harvest year. Wheat from heading, flowering to maturity is called the late post-harvest period of wheat. The late period of wheat is a crucial period for graininess, grain filling, grain weight, and production. Therefore, doing a good job of "three sprays" can not only greatly improve the quality of wheat, but also add about 25-40% of production. The specific method of operation is:
Spray fertilizer 1, urea. The use of urea 750-1000 grams per acre, add water 50 kilograms, in the wheat booting to the filling phase of the spray, the defermented plots, can enhance photosynthesis through nitrogen supplementation, and promote the second and third types of wheat fields to catch the team. 2, potassium dihydrogen phosphate. During the period of wheat flowering to grain filling, 100-200 g of potassium dihydrogen phosphate and 75 kg of water are sprayed per acre to increase photosynthetic capacity, promote nutrient conversion and transportation, and accelerate grouting speed. It can resist wind and fall, prevent dry hot air, increase output and quality, and increase grain weight. 3, multi-element fertilizer. In wheat heading grouting, about 100 grams of trace elements such as phosphorus, zinc, copper, potassium, and magnesium are used per acre, and 50 kg of water is added to spray, which can supplement nutritional ingredients, increase photosynthesis, increase seed-setting rate, and increase grain weight. 4, spray amino acid compound fertilizer. It is an amino acid-based high-efficiency nutrient organic compound fertilizer with full nutrition, high fertilizer efficiency, quick effect, drought resistance, lodging resistance, good yellowing, grain fullness, increased grain weight, increased production, and high yield. In the jointing, booting and filling stages of wheat, 300-400 times of fluid was sprayed again. 5, vinegar. 300 grams of water for 40-50 kilograms of mu can be sprayed in the late stage of wheat flowering to the early stage of grain filling, and it can prevent dry hot wind of wheat, which can increase production by 9%.
Spraying hormones to increase production, in the jointing of wheat to flowering period with 25 ml per mu with 50 kg of water spray, can promote the development of wheat seedlings from weak to strong, enhance disease resistance, improve yield and quality.
Spraying pesticides "three sprays" must be matched with pest control. Midplasma, red spider mites, wheat bran, rust, and powdery mildew are the major enemies of wheat production. Do not ignore pest control in heavy water and heavy fertilizers. The control of midge, during the flood season, is applied on the surface every morning or afternoon with insecticide or mixed soil; the aphids can be sprayed with 40% omethoate 1000 times. Two diseases can be sprayed with 20% triadimefon EC or 25% triadimefon glue suspension 20-40 ml water 40-80 kg when the upper trifoliate leaf is 10%.
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