Potash Market Variety Gets Clear Concept Anti-Confusion

At present, some farmers have become accustomed to using diammonium with potassium fertilizer as wheat base fertilizer. However, according to the author's investigation, the farmers purchased potassium potash mixed with potassium and potassium chloride, potassium humate, potassium fulvic acid and bio-potassium. In the market, potassium, potassium, potassium, potassium, potassium, potassium, potassium, potassium, etc., have a wide range of "potassium", and their implementation standards are not the same. Farmers said that distributors recommend diammonium to be formulated with potash, and specific potassium does not know. The dealer said that diammonium can only make money with “potash” if it does not make money. It goes without saying that the distribution of such "potash" is tricky, that is, there is little or no potassium. The author suggests that the peasants would rather use ternary compound fertilizer instead of diammonium and potash fertilizer, or save the purchase of fancy “potash” money to buy real potash. The concept of “potash fertilizer” that farmers are apt to confuse is introduced.

The National Standard for Potassium for Agricultural Use is GB20406-2006, generally in the form of powder, granules, and crystals. It is odorless, bitter, hard, and stable in the air. Potassium content is generally 45%-52%, with *18% at the same time, chlorine ion content ≤ 3%, long-lasting fertilizer effect. Widely used in vegetables, fruit trees, **, tea trees and other chlorine-sensitive crops, is a more expensive one with * Potash.

The national standard for agricultural potassium chloride is GB6549-1996. It will be replaced by GB6549-2011 as of June 1, 2012. It is a colorless or red slender rhombus or cubic crystal, and also has white or red crystallized small particle powder, odorless and salty. . The potassium content is generally 50-60%. After application, the potassium ions are easily adsorbed by the soil colloid. The mobility is small, and the moisture in the lower layer of the soil can be increased, which has the effect of drought resistance. Faster fertilizer, stronger straw, significant potassium chloride for base fertilizer, topdressing, can not do seed fertilizer, because a lot of chloride ions will harm the seed germination and seedling growth. Widely used in non-eligible fruit trees, vegetables and field crops, in the saline-alkali land and on the **, tea, sweet potatoes, potatoes, grapes, beets and other crops should not be applied. The price is slightly lower than **potassium, and it is a kind of high quality and efficient agricultural potash.

Agricultural ***

National standard is GB/T 20784-2006, white or light-colored crystalline powder. The potassium content is generally 44.5%, while the nitrogen content is 13.5%, and the chloride ion content is ≤ 1.5%. *** In the past, only industrial raw materials were used in our country, and it was applied to agriculture after the mid-1990s. It can be applied topdressing, it can also be used as liquid fertilizer for foliar spray, drip irrigation and so on. The market is mostly imported products, the price is more expensive than potassium and potassium chloride, and it is a high-quality and high-efficiency nitrate-potassium fertilizer.

There is no national standard for potassium dihydrogen phosphate, the industry standard is HG2321-92, the appearance of white crystal or powder, chemically stable, odorless, tasteless, non-toxic, soluble in water, no caking, suitable for all kinds of soil And crops. The general phosphorus content is 52%, potassium content is 34%, nitrogen fertilizer is not included, and the total content of NPK is as high as 86%. With less application, it is widely used in soaking, immersing roots, dressing seedlings, irrigating, foliar spraying and drip irrigation. It has significant effects on accelerating grouting, promoting metabolism, resisting dry hot wind, preventing lodging, and increasing production of crops. Its price is much more expensive than **potassium, potassium chloride, and cesium, and the current ex-factory price is about 10,000 yuan/ton of potassium fulvic acid. There are no national standards and industry standards, and all production plants have only enterprise standards, and generally fulvic acid. Content ≥ 50%, potassium oxide content of about 11%, mostly tan powder, non-toxic, sweet odor. It is a kind of humic acid. The short carbon chain molecular structure material extracted from natural humic acid belongs to the smallest molecular weight and the most active component in humic acid. It is the essence of humic acid active ingredient.