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Foliar fertilizer is not the same as pesticide; the difference between the two must be clearly distinguished
I. Why are medium-element water-soluble fertilizers used for fertilizing fruit trees? 1. The soil is not lacking in calcium fertilizer; what is lacking is mobile ionic calcium, so when choosing fertilizer, be sure to choose a calcium fertilizer that dissolves quickly in water. Research shows that crops such as ginger, watermelon, chili pepper, eggplant, tomato, and grape absorb calcium far...