What is potash fertilizer? What kinds do you have?

Potash fertilizer is a kind of fertilizer that farmers can not do without in their daily work, but in fact, many friends do not know what potash fertilizer is. What kinds do you have? Next, let's have a brief understanding.

What is potash fertilizer?

Potash fertilizer, the full name of potassium fertilizer. For fertilizers with potassium as the main nutrient, potassium in plants generally accounts for 0.2%-4.1% of the dry matter weight, second only to nitrogen. In the process of plant growth and development, potassium is involved in the activation of more than 60 enzyme systems, photosynthesis, transport of assimilates, carbohydrate metabolism and protein synthesis.

What kinds of potash fertilizer are there?

There are two kinds of potash fertilizer, one is simple potash fertilizer, the other is compound fertilizer containing potassium. Common elemental potash fertilizers include potassium chloride, potassium sulfate and potassium silicate.

Potassium chloride: divided by origin, there are red and white; shape can be divided into block, powder and irregular granules; potassium oxide, domestic 57% or 60%.

Potassium sulfate: generally white crystalline particles or powder. Some products are slightly variegated because of the impurity. Domestic potassium sulfate includes Lop Nur or Taiwan, generally containing 50% of K2O and 54% of German production.

Potassium silicate: dark gray powder, an industrial by-product, the content can only be confirmed by laboratory tests, generally K2O is 10% 14%, alkaline.

The potassium content of common potassium compound fertilizer and ternary compound fertilizer can be explained from the packing bag: N-P2O5-K2O. Binary compound fertilizer-potassium nitrate: White crystalline particles, rare in the market.

Pit ash potash fertilizer is a by-product of cement industry. Different cement manufacturers, cellar ash potassium fertilizer potassium oxide content is also different, the low content of about 8%, high up to more than 20%. Pit ash potash fertilizer also contains calcium, magnesium, sulfur, iron and other trace elements, which is an alkaline quick-acting chemical fertilizer, which can be used as base fertilizer and topdressing fertilizer, especially in acidic and slightly acidic soil. It should not be mixed with ammonium nitrogen fertilizer and calcium superphosphate, so as not to cause the loss of ammonium nitrogen and decrease the availability of phosphorus.

Plant ash contains a variety of ash elements, such as potassium, calcium, magnesium, sulfur, iron, silicon and so on. Among them, there are more potassium and calcium, followed by phosphorus. Plant ash can be used as base fertilizer and topdressing fertilizer, and the effect of spreading in early spring can not only meet the needs of growth and development of fruit trees, but also increase soil temperature and benefit root growth. Plant ash is alkaline and can not be mixed with ammonium nitrogen fertilizer to avoid ammonia volatilization.

To sum up, that's all for today. What else do you want to know about potash? Come and leave a message for the editor.

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