La description

Manufactured by chemical methods contain one or several crop growth and nutrient elements needed fertilizer. The chemical fertilizer, referred to as. Contains only a marked content of nutrient element fertilizer units called fertilizer, such as nitrogen fertilizer, phosphate fertilizer, potash fertilizer and secondary constant element fertilizer and trace element fertilizer. Containing two or three and can be marked on the content of three kinds of nutrient element fertilizer nitrogen, phosphorus, potassium in the compound, known as manure or compost. The effective group fertilizer solubility in water is usually measure the fertilizer effectiveness standard. Grade is the main index of fertilizer quality, it refers to the percentage, effective nutrient element fertilizer products or their oxides such as: percentage of nitrogen, phosphorus, potassium, calcium, sodium, manganese, sulfur, boron, copper, iron, molybdenum, zinc.

磷肥、氮肥、钾肥是植物需求量较大的化学肥料。

Phosphate fertilizer, nitrogen fertilizer, potash fertilizer is greater demand for chemical fertilizer plant.