1, a solid product of water-soluble fertilizer with a large number of elements (medium element type). The main technical indicators are that the content of large elements is ≥50.0%, and the content of medium elements is ≥ 1.0%. The main technical indexes of the liquid product of water-soluble fertilizer with large elements (medium element type) are that the content of large elements is ≥500g/L, and the content of medium elements is ≥ 10 g/L, in which the content of large elements refers to the sum of total N, P2O5 and K2O. The product should contain at least two kinds of large elements, and the content of a single large element should not be less than 4.0%(40g/L). The content of medium elements refers to the sum of calcium and magnesium. This product contains at least one medium element, and the medium element content should include a single medium element with a content of not less than 0. 1%( 1g/L).
2. According to the standard NY1107-2010 of China People's Ministry of Agriculture, the main technical indexes of water-soluble fertilizer with large elements (medium element type) are ≥50.0%, and the content of medium elements is ≥ 1.0%. The main technical indexes of liquid products of water-soluble fertilizer with large elements (medium element type) are that the content of large elements is ≥500g/L, and the content of medium elements is ≥10 g/L.