By calcium and magnesium elements in according to the required proportion suitable for plant growth, or add to suitable amount of copper, iron, manganese, zinc, boron, molybdenum trace elements made of liquid or solid water soluble fertilizer. Product standard for the NY 2266-2012. The product technical indicators are: liquid product Ca 100 g/L or higher, or Mg 100 g/L or higher, or Ca + Mg 100 g/L or higher. Solid product Ca 10.0% or higher, or Mg 10.0% or higher, or Ca + Mg 10.0% or higher. This standard in June 1, 2013 formally implemented.
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