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What are the identification methods of potash fertilizer?

Published: 2024-11-06 Author: mysheen
Last Updated: 2024/11/06, How to use irrigating fertilizer in greenhouse? Is there any way to learn from it? First, the combination of topdressing and flushing fertilization to select high-quality fertilizer, mainly multi-component compound fertilizer, the combination of topdressing and flushing application can not only solve the problem of surface root fertilizer, but also activate the soil layer through topdressing, increase root activity and slow down.

What are the identification methods of potash fertilizer? How to distinguish the true and false potash fertilizer method: the first is the iron sheet combustion method: put a little fertilizer particles (large or small) on the red-hot iron sheet to burn, and those who do not melt, odorless or heated can be roughly defined as potash fertilizer. If the iron sheet is tilted and the fat particles are directly burned by high temperature, there will be a colored flame, the golden shining flame is sodium, and the light yellow with lavender flame is potassium. Potash fertilizer also has a kind of powder, the color can be brick red, light red or white, its identification method is also burning on the iron sheet, potash fertilizer is non-melting, no odor, while phosphate fertilizer is light gray, although it is not melted, but it has a smell. Add: if the fertilizer particles on the iron sheet are melted by high temperature and there is thick smoke, those with ammonia odor are ammonium nitrogen fertilizer, and those without ammonia smell may be nitrate; if the fertilizer particles on the iron sheet do not melt and do not beat, and those who smell sour or bone smell, it may be phosphate fertilizer. The second is to dip the saturated potash solution on the wire ring and burn on the high temperature flame to observe the flame color, but it is difficult to distinguish the flame color between potassium and sodium. However, if inferior potash fertilizers other than conventional ones are encountered in the market, such as the small blocks or powdered forms of unrefined potash feldspar, the content of soluble potassium can only be determined by means of laboratory tests. Only rely on the combustion method can only be qualitative, not quantitative, that is to say, can only distinguish between true and false, can not be superior or inferior. So when farmers choose to buy chemical fertilizer, they should go to the regular sales outlets to avoid being deceived. Click to get more nitrogen, phosphorus, potassium application techniques click to get more fertilizer application techniques

 
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