21 0 0 24 fertilizer

Ammonium sulfate 21 0 0 24 fertilizer: colorless crystals or white granules. Odorless. Decompose above 280°C. Solubility in water: 70.6g at 0°C, 103.8g at 100°C. Insoluble in ethanol and acetone. The pH of 0.1mol/L aqueous solution is 5.5. The relative density is 1.77. The refractive index is 1.521. Ammonium sulfate is mainly used as a fertilizer for various soils and crops. It can also be used in textile, leather, medicine and other aspects.

Ammonium sulfate, 21 0 0 24 fertilizer, the appearance is white crystal, nitrogen content 18%-21%, soluble in water, not easy to absorb moisture, easy to store and use, but it often absorbs moisture and agglomerates in wet and rainy seasons, so it needs to be ventilated and dry when storing. Ammonium sulfate is a physiologically acidic fertilizer, so frequent application of ammonium sulfate will increase soil acidity.

Therefore, the application of ammonium sulfate on acidic soil should be combined with organic fertilizer and lime application to neutralize the acidity, supplement calcium and enhance the buffering capacity of the soil. Ammonium sulfate can be used as base fertilizer, topdressing fertilizer, and also as seed fertilizer. The amount of application depends on the crop yield and the nitrogen content of the soil. The amount of ammonium sulfate per mu is generally 20-30 kg. When applying this ammonium sulfate fertilizer on calcareous soil, it should be applied deeply and covered immediately, otherwise it will cause the volatilization of ammonia and a large loss of nitrogen.

When we use ammonium fertilizers, 21 0 0 24 fertilizer, we should pay attention that ammonium sulfate cannot be applied for a long time, because ammonium sulfate is a physiologically acidic fertilizer, and long-term application on the same soil will increase its acidity and destroy the aggregate structure; in alkaline soil, the ammonium ions of ammonium sulfate Absorbed, while acid radical ions remain in the soil to react with calcium, making the soil harden.