Kiln ash potash is a by-product of the cement industry and it is cement kiln ash that is enriched by air separation. The appearance of this fertilizer is grayish yellow or brown powder, generally containing 8% to 12% of potassium oxide (K2O), 35% to 40% of calcium oxide (CaO), and containing magnesium, sulfur, Iron and other elements.
Potassium in kiln is rich in calcium, and it can release many energy after being applied into the soil. It is a kind of hot fertilizer, and it is a kind of alkaline fertilizer with strong hygroscopicity mainly containing potassium. The pH of the aqueous solution is between 8.9 and 12. Therefore, the fertilizer is suitable for application on the acidic calcium-depleted soil. In addition, the kiln-ash potash also has good effects on legumes, rice, cotton, peanuts and other crops.
Kiln ash potash application method and matters needing attention:
(1) Used as base fertilizer. When kiln ash is used as a basal fertilizer in dry land, the fertilizer should be scattered before the cultivated land, or it can be used after being mixed with organic fertilizer, which is not only convenient to use, but also can promote the maturity of organic fertilizer.
(2) used as top dressing. Potassium kiln potassium should be applied to the soil before the first tillage in the crop, but care should be taken not to spread it in the morning when there is dew, so that the kiln ash will stick to the leaves and cause burning of leaves. In the event of strong winds, it should be wetted. Subsequent application to reduce various injuries to people, animals and crops.
(3) Not suitable for seed fertilizer. Because this fertilizer contains more calcium, it has strong hygroscopicity, and it turns into mature lime after absorbing water. It releases a lot of heat and easily burns the young root of the seed.
When potassium kiln is used, care should be taken not to mix it with water-soluble fertilizers such as ammonium nitrogen and superphosphate. In addition, some nitrogenous fertilizers and phosphate fertilizers should be properly formulated to increase the utilization of fertilizers. The general amount of 50 ~ 70kg per mu.
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Ulipristal Acetate Intermediates
Gestadienol Acetate,Ulipristal Acetate Intermediates,Cas 33300-19-5
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