Phosphate fertilizers are not necessarily suitable for all acidic soils and must not be ignored

Published:

2022-08-31

Which phosphate fertilizer should be suitable for acidic soil? Do all acidic soils need phosphate fertilizer? In recent years, the cultivation of greenhouse crops has caused a lot of soil to become more acidic, so when we use fertilizer, we must choose carefully Which phosphate fertilizer to use is more effective and can allow crops to absorb better.

　　There are three common types of phosphate fertilizers: calcium superphosphate, calcium magnesium phosphate fertilizer, and rock phosphate. Calcium magnesium phosphate fertilizer is only soluble in a weak acid state, and it is suitable for acid soil with good effect. Phosphate rock powder is a poorly soluble fertilizer and is not recommended for use.

　　Once the soil is acidic, after the soil is determined to be acidic soil, only calcium and magnesium phosphate fertilizers are recommended when using phosphate fertilizers. If the soil is alkaline soil or neutral soil, it is recommended to use superphosphate. .

　　Before using phosphate fertilizer, you must first determine the characteristics of the land, and choose the matching fertilizer according to the characteristics of the land, so as to be worth the money, let the fertilizer have good benefits, avoid blind fertilization, and the crops you plant cannot be very good. The growth also cannot better absorb nutrients, resulting in reduced yield and reduced income.

　　When buying potassium dihydrogen phosphate, I was afraid of buying fake products, and I don’t know how to distinguish the authenticity of potassium dihydrogen phosphate. Today, I will tell you a little trick to distinguish the authenticity of potassium dihydrogen phosphate. The purity of potassium dihydrogen phosphate that is usually used in large quantities It is 99%, it is true potassium dihydrogen phosphate. The materials prepared for identification are: potassium dihydrogen phosphate, soda ash, cup, add a little water to the cup, pour a little alkali surface and shake it evenly, then pour potassium dihydrogen phosphate and shake it a little , You can see through the cup in the cup that the solution in the cup is a little turbid, and there are bubbles coming out of the bottom of the cup, so as long as there are bubbles coming out all the time, it is the real potassium dihydrogen phosphate. If the potassium dihydrogen phosphate added to the alkaline water is shaken, a lot of flocs are produced without bubbling, which proves that the potassium dihydrogen phosphate is fake.

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