Potassium dihydrogen phosphate is a kind of quick-acting phosphorus and potassium compound fertilizer, containing 51.7% of phosphorus pentoxide and 34.6% of potassium oxide. The appearance of white crystals, acidic, non-toxic, odorless, non-volatile, non-deliquescent, stable, soluble in water, easily absorbed by plants. In production, it is mainly used for soaking, dressing and foliar spraying. Soaking, seed dressing: soaking or seed dressing of potassium dihydrogen phosphate, can stimulate seed germination and promote strong seedlings, strong stems, upright resistance. Soaking seeds, per 100 kg of seeds, with 200 grams of potassium dihydrogen phosphate, watered 50 kg, soaking seeds for 12-16 hours, remove and dry; seed dressing, per 100 kg of seeds, with 200 grams of potassium dihydrogen phosphate, watered 10 Kilograms, mix well with the seeds. Roots: Use 0.4-0.5 kg of potassium dihydrogen phosphate per acre, mix well with dry fine soil, add water to a slurry, transplant and plant roots when transplanting or transplanting. Foliar spraying: This is the most common method. Fertilizer is sprayed on the leaves to directly fill the crops to compensate for deficiency of phosphorus and potassium nutrients, enhance photosynthesis, prevent premature decline of crops, increase resistance to low temperature and high temperature, promote synthesis and accumulation of starch and sugar, and increase seed setting rate and grain weight. , reduce the shell, achieve the purpose of increasing production. Spraying method is: First, control the spraying period. Generally selected in the crop uptake of phosphorus and potassium nutrients peak period, such as wheat, rice and other cereal crops booting or heading flowering period; rape from the moss to the flowering period; before and after cotton flowering; tuber potato crop expansion period. In the rainy days, if there is no rain, it will not be applied in the morning and it will not be applied in the sunny hours. It should be selected before 10:00 in the morning and sprayed after 4 pm; it can be sprayed all day in cloudy days. The second is to control the amount and concentration of spray fertilizer. Rice-wheat and other cereal crops use 0.2-0.3% of fertilizer solution, that is, 100-150g of potassium dihydrogen phosphate per mu, and about 50kg of water, stir and dissolve the mixture (the following preparation methods are the same); The suitable concentration of cotton is 0.1-0.2%; 0.2% of potato, 50-75 kilograms of spray fertilizer liquid should be sprayed by the entire plant, uniform, and walking should not be too fast, so that both the positive and negative sides of the foliage can be coated with fertilizer. Promote chemical fertilizers and pesticides. Potassium dihydrogen phosphate and some nitrogen fertilizers, micro-fertilizers and pesticides, etc., can be reasonably matched and mixed application can save labor, increase fertilizer efficiency and drug efficacy. In the case of mixed crops with poor crop growth, nitrogen deficiency, phosphorus, and potassium, it is generally required that the suitable concentration of urea is 1-2%. In boron-deficient soils and crops that are markedly effective on boron fertilizers, such as cotton, rape, and wheat, the use of potassium dihydrogen phosphate and boron fertilizers combined to increase production yield is significant. The suitable concentration of boron fertilizer is 0.1-2%, and the amount of boron fertilizer for mu is generally 50-100 grams. When it is necessary to treat pests, potassium dihydrogen phosphate can be mixed with trichlorfon, dimethoate, phoxim and pseudo-pyrethrin vinegar pesticides to receive the effect of a few herbs.
Goji Berry,Goji Berry Plant ,Goji Berry Tea ,Goji Berry Extract
Dried Fruit,Herbal Extract Co., Ltd. , http://www.nbgoji.com