The appearance of heavy superphosphate is similar to that of ordinary calcium, usually grayish white, dark gray or grayish black. The granulated fertilizer is usually a 1-5 granule with a bulk density of about 1100 kg / m. The main component of heavy superphosphate is monocalcium phosphate monohydrate. Since the raw material phosphoric acid and phosphate rock contain impurities, the product also contains a small amount of other components. The general grade of international heavy-duty calcium phosphate is N-P2o5-K2O: 0-46-0. China’s industry standard for heavy superphosphate products, HG2219-9l, stipulates that: effective P2O5 ≥ 38% in heavy superphosphate is qualified, and P2 ≥ 46% is superior.

Granular heavy superphosphate can be used directly or as a phosphorus raw material for admixing fertilizers. Powdered granular super-superphosphate can be used as an intermediate product and other nitrogen or potassium-based basic fertilizers or trace element raw materials to be processed into a compound fertilizer containing various nutrients to meet the needs of different soils and crops. .

The advantage of heavy superphosphate is the high concentration of nutrients, and most of them are water-soluble phosphorus, which saves packaging and transportation costs and reduces field costs. Therefore, the construction of a heavy superphosphate device in the phosphate rock producing area is more economical and reasonable. The other advantage of the product is that the P2O5 contained in the product is directly converted from low-cost phosphate rock. That is, more effective P2O5 can be obtained by producing a certain amount of phosphoric acid to produce heavy superphosphate than to produce ammonium phosphate.

Heavy calcium has obvious yield-increasing effects on most crops such as wheat, rice, soybean, corn, talented, etc., such as: can promote early maturity of rice, increase tillering, vigorous growth, thick stems, early heading, and reduce openness; Promote the growth and early maturity of maize seedlings, and promote the plant height, ear weight, grain number per spike, and 1000-grain weight; promote wheat growth in the flood season, robust plants, promote tillering, and have obvious yield-increasing effects; Not only does it maintain good nutrients in the soil, it also enhances root development, increases root numbers, and increases nitrogen supply. Yes, 1, centralized use, 2, mixed with organic fertilizer application, 3, layered application, 4, root external application.

Package: 50KG PP+PE/bag, jumbo bags or as buyers’ requirements

Specifications:

Specifications:

2.Mainly used as the raw material of BLENDING NPK.

3.Used as settling agent in glass industry.

4.Used as intermediate in dyeing industry.

5.Used for producing potassium sale, potassium carbonate, potassium persulphate

However, it also has some shortcomings, such as its nutrient ratio is always fixed, and the types, quantities and proportions of nutrients required for different soils and different crops are diverse. Therefore, it is best to conduct soil testing before use to understand the texture and nutritional status of the soil in the field, and also pay attention to the application with unit fertilizer to get better results.

nutrient

The total nutrient content of the compound fertilizer is generally high, and there are many nutrient elements. The compound fertilizer is applied at one time, and at least two main nutrients of the crop can be supplied at the same time.

Uniform structure

For example, ammonium phosphate does not contain any useless by-products, and its anion and cation are the main nutrients absorbed by crops. The nutrient distribution of this fertilizer is relatively uniform. Compared with the powdery or crystalline unit fertilizer, the structure is tight, the nutrient release is uniform, and the fertilizer effect is stable and long. Due to the small amount of sub-components, the adverse effect on the soil is small.

Good physical properties

The compound fertilizer is generally made into granules, has low hygroscopicity, is not easy to agglomerate, is convenient for storage and application, and is particularly convenient for mechanized fertilization.

Storage and packaging

Since the compound fertilizer has less side components and the active ingredient content is generally higher than that of the unit fertilizer, it can save packaging, storage and transportation costs. For example, each storage of 1 ton of ammonium phosphate is equivalent to about 4 tons of superphosphate and ammonium sulphate.

2.Magnesium sulfate used in the industrial
It can be used in printing and dyeing, Industry,monosodium glutamate and yeast fermentation and as accessory ingredient for ABS and PVC resin

3.Magnesium sulfate for stock raising
Magnesium is usually Fertilization among the early spring and the end of the year, until the grass can provide adequate magnesium ,it can also added in the feed and drinking water to meet growing demand of dairy cow’s sebum, in order to improve the quality and quantity of milk cows.

4.Magnesium sulfate
whitch contains a small amount of crystal water or non-crystalline water can be used for organic synthesis and the desiccant and dehydration agent of feed and fertilizer.