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The oxalic acid secreted by the glandular hair of the phosphate fertilizer 1 has an attractive effect on the cotton bollworm moth; in the adult period of the cotton bollworm, the 1-2% superphosphate leaching solution is used for foliar spraying, which can change the oxalic acid into calcium oxalate and lose it. The lure of cotton bollworm. In this way, the amount of eggs in the cotton field can be reduced by 33.3-73.4%, with an average of 55%; the duration of each spraying of phosphorus is generally 2-3 days. 2 Tomato umbilical rot is a physiological disease caused by calcium deficiency in plants. Starting from the initial flowering stage of tomato, the leaching solution of 1% superphosphate is sprayed once every half month, even spraying 2-3 times, the effect of disease prevention is obvious.
Potassium fertilizer can enhance the stress resistance of crops, and increasing potassium fertilizer can inhibit various crop diseases and insect pests. According to reports, among the 740 fungal diseases and 68 bacterial diseases, 71% and 75% were reduced by potassium, respectively, and 59% of the 230 pests (螨) were mitigated. In production, the potash fertilizer that is directly used to control crop diseases and insect pests is grass ash. Grass ash is a kind of high-quality potash, and also contains phosphorus, calcium, magnesium, sulfur and boron, manganese, copper, zinc, molybdenum and other nutrients; 10 kg of plant ash, 50 kg of water, soaked for 24 hours, filtered, taken The filtrate spray can effectively kill the aphids on the crops; in the cotton seedling stage, 20-25 kg per mu of plant ash, spreading along the ridge can increase the ground temperature and reduce the occurrence of cotton blight, anthracnose, red rot, etc. Before planting onions, garlic or leeks, use 20 kg of grass ash per acre, apply to the bottom of the ditch, or in the seedling stage of onions, garlic, alfalfa and other vegetables, apply 15 kg of grass ash per acre, and then draw the soil. It can significantly reduce the damage of root mites and increase the yield of vegetables by 15-20%. When wheat sheath blight occurs, 30-40 kg of ash is used per acre. When the dew is not dry in the morning, the ridge is removed at the base of the wheat stalk. Controlling the spread of disease has a certain effect; for fruit trees with root rot, first dig the root soil, scrape off the root bark of the disease, dry it slightly, and then embed 2.5-5 kg ​​of plant ash per plant, about 1-2 months, sick The tree will emit a new root.
Li Dongxia
Customer: How can we conserve water?
Handy: We have the Touch control faucet help you satisfy your desires. Dural brass gravity casting main body, polished chrome color, resisting corrosion and tarnishing. Male thread water saving aerator, touching control, 4 kinds of outlet water: shower water, bubbler water, self closing, Omni – directional aerator. The working pressure of the product is 0.05MPa to 0.9MPa. Water saving rate reach to 48%.
Nitrogen fertilizer 1 ammonium bicarbonate, ammonia and other ammonium nitrogen fertilizers have strong volatility, have certain stimulation, corrosion and fumigation effects on pests, especially for red spiders, aphids, thrips and other small body, weak endurance pests, the effect is even more it is good. Method of application: Spray evenly with 1% ammonium bicarbonate or 0.5% aqueous ammonia solution, spray once every 5-7 days, and spray 2-3 times. 2 Urea has the function of destroying chitin of insects, and is mixed with urea, washing powder and water in a ratio of 4:1:400. It is a mixture of aphids and cabbage caterpillars that harm cotton, vegetables and flowers. Various pests such as spider mites have good control effects. 3 When wheat rust occurs sporadically, it is sprayed with 50% fresh urine or 3% ammonium sulfate aqueous solution, and the effect is good.
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