It is as good as applying potassium fertilizer, potassium, potassium and potassium.

At present, the peak season of various field crop topdressing is coming. The topdressing is mainly to supplement nitrogen and potash. In the current fertilizer market, agricultural potassium chloride has red and white colors. Many farmers and dealers ask in the hotline consultation. I used to use red potassium. Now I buy white potassium. How about the quality of this white potassium? Some people even suspect that white potassium is fake.

In fact, white potassium is as good as red potassium in terms of the active ingredient content and the fertilizer effect after application. In order to help consumers understand the reasons for the difference in the color difference between the two potassium fertilizers , we systematically elaborated on the product characteristics and traits of agricultural potassium chloride fertilizer, including color differences.

Color of Agricultural Potassium Chloride Fertilizer The quality standards for Chinese agricultural potassium chloride stipulate that the product is white or red, depending on the method of mining and recovery, there is no difference in agricultural application. Friends of farmers to buy the product can also be red color can be white, do not rely on color to distinguish between true and false and shoddy products. People have to ask, why are potassium chloride products available in different colors such as red and white? This is due to different manufacturing methods. When the potassium chloride crystals were dissolved using plant and flotation method is prepared, typically granular powder, pale yellow product may be potassium chloride, brick red or white. In the past, potassium chloride produced in Canada was light brick red, which people used to call "red potassium", and red was due to about 0.05% iron and other metal oxides. In addition to red potassium, there are many white potassium chloride products produced by potash companies at home and abroad. There is no essential difference in actual application.

Shape and particle size Potassium chloride is in the form of small crystals or granules with a particle size ranging from 0.8 to 4.7 mm or from 0.6 to 3.3 mm . Granular potassium chloride, mainly used for bulk blending fertilizer, blended with the same grade of phosphodiammonium, urea and other blends to produce blended fertilizer, also known as BB fertilizer. The powdered fertilizer can be directly applied, or can be mixed with other powdery nitrogen and phosphorus fertilizers, and then processed into a 3 yuan compound fertilizer by secondary granulation by agglomeration method or extrusion method .

Potassium chloride content of potassium chloride potassium ( K ) 50% ~ 52% ; potassium oxide ( K2O ) 60% ~ 63% , while chlorine 47.6% . In addition, it contains a small amount of sub-components such as sodium, calcium, magnesium, bromine and sulfate.

Hygroscopicity and agrochemical traits Potassium chloride is slightly hygroscopic and generally has little agglomeration in the north. In the south, especially in the rainy season, the weather will be severely hygroscopic and begin to deliquesce. After a long time, it will agglomerate. Potassium chloride is easily soluble in water and is a quick-acting fertilizer, although it is chemically neutral in water . However, after application to the soil, potassium chloride is a physiologically acidic fertilizer.

Potassium is easily retained by soil colloidal particles and is largely absorbed by crop roots. The soil can not be chlorine sorption micelles, and very little absorption by plant roots, the residual chlorine is eluted down rain or irrigation water, generally will not cause harm. However, if there is more chlorine residue, it will have an impact on the soil. In acidic soils, soil acidity enhanced by the addition of aluminum in the soil and iron solubility, activity increased toxic effects of aluminum, should be administered in combination with an organic fertilizer and lime. On neutral and calcareous soils, calcium chloride is formed and leached downwards, which may cause changes or even deterioration of physical properties of the soil. It should be applied with calcium-containing fertilizers and organic fertilizers.

In short, as long as it is agricultural potassium chloride, white potassium and red potassium are as good. The authenticity of the potash fertilizer is judged by the fact that only the color is not acceptable . Farmers friends must go to the regular sales outlets when purchasing fertilizer products, so as not to be deceived. There is a saying that is right, "cheap is not good." To buy potash, you should pay attention to quality and look for the brand.

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