First, potassium dihydrogen phosphate. In the booting stage and the initial stage of grain filling, spray 0.2-0.3% potassium dihydrogen phosphate aqueous solution 50-75 kg per acre, which can promote grouting and increase dry weight. Note that you must first spray Miao Miao Tian excessive amount of nitrogen fertilizer, after the general spray field. If it is found to be harmful to aphids, add 40% of omethoate EC 50-75 grams to the aqueous solution of potassium dihydrogen phosphate. Second, urea. After wheat heading and flowering, on the dry and thin land or land with premature aging, urea 0.75-l kg/mu, watering 50-75 kg stem and leaf spray, can extend the functional period of the leaf, dry grain weight increased by more than 1 g. General field, with 150-200 grams of urea per acre, 100 grams of potassium dihydrogen phosphate, 50 kilograms of watered foliar spray, the effect of improving grain weight is also very obvious. Third, superphosphate. In late wheat growth, the ability to absorb phosphorus from the soil is weak. Generally used 2% concentration of calcium superphosphate leachate, the method is: per 100 kilograms of water, add 2 kg of superphosphate, fully stirred until the clear liquid can be removed after 24 hours. If 5-10% of ash leaching solution is added, the adverse effects of free acid in superphosphate can be eliminated, potassium nutrition can be improved, and the effect of increasing production can be better. Fourth, boron fertilizer. Spraying boron at wheat booting stage and flowering stage can accelerate floret development, increase seed setting rate and dry weight. Generally, 50-75 grams of boric acid or 75-125 grams of borax is used per acre, diluted with water to 50-75 kilograms, and foliar sprayed. Because borax dissolves slowly in cold water, it should be first dissolved in warm water at 40°C, and then diluted with water to the desired concentration. Fifth, zinc fertilizer. In calcareous soils, sandy soils, and wheat fields in which phosphate fertilizers are continuously applied in excess, zinc deficiency is prone to occur. In the jointing stage and filling stage, spray 0.1-0.2% of zinc sulfate solution, each 50-60 kilograms per acre, can enhance the ability to reverse the wheat pit, reduce the number of infertile spikelets, and increase grain plumpness. Spraying foliar fertilizer on wheat roots can effectively prevent premature aging of wheat, prevent and treat diseases and insect pests, promote grain filling and improve quality, and has the advantages of less dosage, quick effect and simple application. In particular, this year, small groups, weak individuals, heavy damage, and late spring return have been the worst years in recent years. Attention should be paid to spraying foliar fertilizers from the roots. However, the foliar spray must master the following methods: 1. Select the appropriate fertilizer type and spray concentration. Fertilizer suitable for foliar spraying on wheat with concentration of 1%-2% of urea, 0.2% of potassium dihydrogen phosphate, 10% of ash extract of botanical ash, 0.15%-0.2% of boric acid or borax, 0.2% of zinc sulphate, rare earth nitrate for agriculture 0.08%, 0.02% sodium bisulfite, 0.2% photosynthetic micro-fertilizer, 0.1% anti-drought agent No.1, etc., in addition to wheat special fertilizer, high-yielding treasure, spray Shibao, green wind 95, bamboo plant growth agent and other compound Nutritional agents. According to the purpose of use, the spray concentration should not be too large. Superphosphate and ash must be fully dissolved in water for a day or two, so that the effective ingredients can be completely dissolved in water to play its role in increasing production, should not be used with the bubble. 2. Choose to spray at the right time. Foliar fertilizer should be chosen on a cloudy day or sunny day after 4 pm, especially in the evening. 3. Try to stagger the flowering period so as not to affect the normal pollination and fertilization of wheat and reduce the seed setting rate. If it is necessary to spray fertilizer at the flowering stage, it should be advanced or delayed, staggered from 9 am to 11 pm and from 3 pm to 6 pm every day. 4. Reasonably mix spraying. Different kinds of foliar fertilizers can be mixed and sprayed, saving labor and labor and “a multi-effectâ€. If nitrogen, phosphorus mixed spray, nitrogen, phosphorus, potassium and trace element fertilizers, fertilizers and regulators or compound nutrient mixed spray, the effect of increasing production than spraying alone better. Adding pesticides on the road and preventing pests will be more effective when spraying fertilizers. 5. In the event of rain after spraying, it should be sprayed once fine. Foot and leg massager Foot and leg massager Shenzhen Jie Zhong Lian Investment Co., Ltd. , https://www.szmeizons.com