This product can be directly absorbed and utilized by crops in soil; Increased photosynthesis in crops; The application in soil will not cause compaction, regulate soil pH and promote the uptake of nitrogen, phosphorus and potassium in soil by crops. Increase crop resistance; Can effectively prevent crop due to lack of calcium caused by tomato umbilical rot, cucumber growing point necrosis, cabbage dry heartburn, hollow cracking, softening disease, apple bitter pox disease, pear black spot disease, brown spot disease and many other physiological diseases.