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Calcium superphosphate
Calcium superphosphate (SSP)
Executive Standard：：GB20413一2006
Features：powder,granular
Application and dosage: It can be used as base fertilizer, top dressing, seed fertilizer and raw material for producing compound fertilizer. It is widely used in rice, wheat, corn, sorghum, cotton, fruits, vegetables and other food crops. It is one of the three major nutrients required for crops, especially for root crops such as potatoes, peanuts, garlic, and sweet potatoes. After application, the crops have thick roots, neat heading, and full grains, and are widely used in various soils. It is especially suitable for phosphorus-deficient areas and alkaline soil areas in North China, Northeast my country, Northwest China, etc., and has a significant improvement effect on the soil. According to different soils and crops, the dosage is 15-50 kg per mu.
Package：Plastic woven bag (lined with inner film), net weight: 50kg (±1kg) or 40kg (±0.8kg) can be customized customer marks.
Storage and transportation：Store tightly in a cool, dry warehouse. The packaging must be sealed and protected from moisture. During the transportation, it is necessary to prevent rain and sun exposure
Specification：
Main content： Ca(H₂PO₄)₂• H₂0
Other ingredients: Contain trace elements such as calcium, magnesium, sulfur, silicon, iron, sodium, potassium, manganese and other crops. Product properties and storage: Calcium superphosphate is a water-soluble phosphate fertilizer, generally off-white or light gray powder, has a special acidic mildew, acid reaction, will not burn, explode, non-toxic, non-hazardous. In the storage process, it will absorb moisture and agglomerate when it is wet, and corrode the packaging container. After moisture absorption, it will also cause a series of chemical changes, which will make the water-soluble phosphate fertilizer become water-soluble and reduce the fertilizer efficiency. This change is generally called degradation. Therefore, we must be tired and moisture-proof during storage.
|
Item |
|
Unit |
High-Class |
First-Class |
Qualified |
QualifiedⅡ |
|
Ⅰ |
||||||
|
available phosphorus （based on P₂O₃）content |
≥ |
% |
18 |
16 |
14 |
12 |
|
Free phosphorus（based on P₂O₃）content |
≤ |
% |
5 |
5.5 |
5.5 |
5.5 |
|
Moisture content |
≤ |
% |
12 |
14 |
14 |
15 |
|
Granular size（2-4mm） |
≥ |
% |
90 |
90 |
90 |
90 |
|
Granular average compression |
≥ |
N |
10 |
10 |
10 |
10 |
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