1. Spray the blade surface accurately.Calcium fertilizer spraying is different from other leaf fertilizer. When common leaf fertilizer spraying, it only needs to spray the leaves evenly, and the plants will be transferred after nutrition absorption.But for calcium fertilizers, when the leaves are absorbed, they will not come out of the leaves and be transported to the parts that are really lacking.Vegetable farmers spray pesticides according to the way, the focus on spraying mature leaves, of course, do not play the role of calcium.The young plant is vulnerable to calcium deficiency, and the young plant should be sprayed in the process of leaf calcium supplement.For example, when the leaves are supplemented with calcium, spray the distance below the growing point of the stem tip 30cm, and at the same time spray the young fruit emphatically. The appropriate calcium application period is after the young fruit is formed.When supplementing calcium to leaves, choose good calcium fertilizer products, as far as possible, small molecules, plants easy to absorb products.
2. Water properly and maintain proper soil moisture.The absorption of calcium fertilizer is closely related to water, and the absorption of calcium fertilizer should be promoted by maintaining appropriate soil moisture.When watering should be balanced water, can not suddenly a large irrigation, and dry for a few days, should be irrigated with small water, keep the ground dry and wet, to ensure that the root system normal absorption of mineral characteristics elements.The occurrence is short of calcareous symptom should pay attention to root to maintain, make sure root is healthy, function is good, ability draws up calcium fertilizer.When washing calcium fertilizer, want to avoid to use at the same time with phosphate fertilizer, can produce precipitate otherwise, wait for use reducing potash fertilizer even.
Pay attention to calcium in base fertilizer.Calcium fertilizer demand is large, leaf fertilizer alone is difficult to meet the growth needs of vegetables, leaf spray can only be used as emergency measures or auxiliary measures.Calcium fertilizer is varied and easy to use.Pay attention to calcium supplements in advance.First, lime, lime and nitrogen, etc. can be spread into the soil together with organic fertilizers. Combined with high temperature and smothering shed, it can not only regulate soil acidity, but also kill pathogenic bacteria and nematodes, but also supplement calcium fertilizer.Second, the bottom application of a variety of calcium fertilizer, such as calcium nitrate, calcium magnesium phosphate fertilizer, calcium superphosphate.At present, the calcium fertilizer on the market is mainly calcium nitrate, which can be used both in the bottom and in the wash.
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