After entering the summer, the high temperature and drought shed environment has become the norm. Once the vegetables have dry calcium, umbilical rot and other symptoms of calcium deficiency, the vegetable farmers should timely add calcium fertilizer. Because of the poor mobility of calcium ions, it is not easy to be absorbed and utilized by crops. Therefore, many vegetable farmers report that calcium supplementation is very poor regardless of whether it is applied or sprayed. Here, remind the vegetable farmers to master certain skills when supplementing calcium.
Lowering temperature and moisturizing degree promotes calcium absorption
Under the premise of widening the air outlet, the vegetable farmers should reduce the temperature in the shed by setting the sunshade net, spraying the cooling agent, operating the crop straw or watering in the row, and watering should be balanced when watering. After a few days of drought, it should be poured in small water, keep the ground dry and see wet, only to maintain proper soil moisture, can promote the absorption of calcium. Irrigation water contains some calcium fertilizer. Reasonable watering is the most important measure to reduce the symptoms of calcium deficiency. Especially in areas with high water hardness, sometimes water can solve the problem of calcium deficiency. After the symptoms of calcium deficiency, it is also necessary to pay attention to the maintenance of the root system to ensure that the root system is robust and functional, in order to supplement the calcium fertilizer.
Calcium fertilizer spraying site should be accurate
Calcium fertilizer spraying is different from other foliar fertilizers. When spraying with common foliar fertilizer, it is only necessary to spray the leaves evenly. After the nutrient absorption, the plants will transfer, but for calcium fertilizer, the leaf absorption is absorbed, no Will come out of the leaves and transport them to the really lacking parts. The vegetable growers should focus on spraying the mature leaves according to the way of spraying the pesticides, and of course they can not play the role of calcium supplementation. The young part is prone to calcium deficiency, and the vegetable farmers should focus on spraying the young parts of the plant when carrying out leaf calcium supplementation. For example, when foliar calcium is added, the focus should be on the distance of 30 cm below the growth point of the shoot tip. At the same time, the key application of young fruit can increase the formation of young fruit.
Pay attention to the bottom of the application of calcium fertilizer
The demand for calcium fertilizer is large. It is difficult to meet the growth of vegetables by foliar fertilizer alone. Foliar spray can only be used as an emergency measure or an auxiliary measure, but not by foliar fertilizer alone. For areas with severe calcium deficiency, it is also necessary to pay attention to the application of various calcium-containing fertilizers, such as calcium nitrate, calcium magnesium phosphate fertilizer, and superphosphate.
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