Planting jujube without organic fertilizer suffered losses.

This year, the price of jujube varies greatly. The main reason for the price difference is the difference between sweetness and brittleness, and the difference between sweetness and brittleness is mainly due to the different kinds of fertilization besides the characteristics of varieties.

At present, it is the second root development period of jujube, the first peak period is from late May to early June after the new shoot stops growing, and the second peak period is from fruit picking to early November. From the survey of jujube farmers, many farmers are only used to fertilizing fruit trees in spring, ignoring the application of base fertilizer in autumn. In fact, there are many advantages of applying base fertilizer in autumn. first, it is beneficial to the full decomposition and utilization of organic matter fertilizer, so that the injured roots can heal as soon as possible, and a large number of absorbed roots can occur. Second, the new absorbing root is very beneficial to promote the photosynthesis of autumn leaves, improve the level of storage nutrition, improve the quality of flower buds, the plumpness of branches and buds and their cold resistance. Third, the rooting activity and fertilizer absorption in autumn is earlier than that in spring, which is very beneficial to the first peak of branch and leaf growth and flowering, leaf expansion and fruit setting in spring, and can significantly improve the photosynthetic efficiency of early leaves. Fourth, the application of base fertilizer in autumn can supplement the nutrients of fruit trees in the critical period of nutrition in the coming year, avoid fertilizing too late in spring, resulting in excessive growth of autumn shoots, decrease of fruit rate, and possible freezing injury.

In order to improve the effect of applying base fertilizer to jujube trees in autumn, one is to deep ploughing the empty rows between the rows of fruit trees and fine soil preparation. Second, it is necessary to apply fertilizer deeply on the basis of finishing, with a depth of 40cm to 50cm. Third, we should look at the sky and the earth to fertilize, and be sure to fertilize when the moisture is sufficient after the rain. Fourth, in case of drought after fertilization, irrigation should be carried out in a timely manner so as to adjust fertilizer with water. Fifth, we should apply fertilizer with formula. Each adult jujube tree should apply 50 kg of rotten soil fertilizer or fence manure, or 2.5 kg of yeast bio-organic compound fertilizer, 1 kg of phosphate fertilizer and 0.5 kg of nitrogen fertilizer. The amount of base fertilizer generally accounts for 60% to 70% of the total fertilizer in the whole year.