Therefore, when choosing calcium fertilizer, we should choose high-activity foliar boron-calcium fertilizer, because high-activity calcium has got rid of the characteristics of plants absorbing calcium through transpiration, and can move freely in plants through boron movement and related technologies. As we all know, the absorption effect of boron is not good, so we can also promote the absorption of boron with the help of calcium absorption ability, which can solve the problems of calcium movement and boron absorption at the same time and play the role of supplementing calcium and boron.