The demand for calcium varies at different growth stages of crops. Generally, during key growth stages such as the early transplanting stage, flowering stage, and fruit enlargement stage, crops have a higher demand for calcium. Appropriate supplementation with calcium fertilizers during these periods can help crops develop healthy tissue structures and support normal growth and development.

Under abiotic stress conditions, such as high temperatures or drought, the plant’s ability to absorb nutrients may be affected. In such cases, proper calcium supplementation can help crops maintain stable growth. Appropriate timing and application methods of calcium fertilizers are essential to achieving optimal results.