EDTA chelates calcium, calcium sugar alcohol and other five mainstream calcium hypertrophy PK, so that crops grow faster and healthier. In the process of crop production, in addition to the three elements of nitrogen, phosphorus and potassium, medium and trace elements play an irreplaceable role, which is of great significance to the quality and growth of crops. And with the rapid increase in the use of large fertilizers, the demand for medium elements has gradually increased. After the recent years of agricultural practice, I have some personal views on the medium element. Today, this article will introduce you to the important role of medium element calcium fertilizer in the crop production process, and introduce you to five kinds of calcium fertilizer in the market. Medium and trace elements include calcium, magnesium and sulfur, and calcium is the largest and most widely used among the three. In the previous agricultural production, farmers mostly used lime, gypsum, bone meal, plant ash and so on to supplement calcium fertilizer for crops, and some areas are still continuing this method.

Physiological function of calcium
Calcium is an important component of the cell wall and exists between cells in the form of calcium pectinate, which enhances cell stability.
Calcium is a component and activator of enzymes in plants, which plays an important role in promoting physiological metabolism and nutrient accumulation of crops.
Calcium can be combined with excessive organic acids in crops to form calcium oxalate, which can reduce or reduce the toxic effect of organic acids on crops.
Calcium can enhance the strength of cells and delay the aging of cells.