Ginkgo four seasons fertilization points
Ginkgo biloba is a fertile and fat-tolerant tree species. Scientific fertilization is an important part of ginkgo management. Therefore, the time, quantity and frequency of fertilization should be determined according to the growth condition of Ginkgo biloba tree, and fertilization should be carried out 3-4 times a year.
First, spring long leaf fertilizer. The young year of the sapling or adult result tree should be fertilized one month before the rain, which can increase the fruit setting rate. If it is an adult tree, fertilization should be conducted within half a month after the rain, and the amount of fruiting can be appropriately reduced. Fertilization is mainly quick-acting fertilizer, supplemented by organic fertilizer, and the general result is 50 kg of trees, and 200 kg of human fecal urea fertilizer is needed. If chemical fertilizer is applied, NPK fertilizer is the best, and each plant applies 2.5-5 kg. Big trees are more used and small trees are used to reduce the amount.
Second, Xiashi long fruit fertilizer. In early July, it is better not to be late. During this period, the fruit grows, roots grow vigorously, and flower buds differentiate. Whether or not nutrients can be supplied in a timely manner is not only related to the output of the year but also to the formation of flower buds and the output of the second year. Long fruit fertilizer is best applied as fertilizer, each tree can be poured 0.5 kg of urea, be sure to add water poured pouring, the concentration of control at about 0.1%, definitely not more than 0.2%. Due to the high temperature and dry season, it is generally not suitable to open the ditch because the ditching will cut off the roots of the ginkgo tree and cause serious fruit drop. The concentration of fertilization must also be taken seriously, and too high a concentration can easily cause damage. If you encounter continuous dry weather after fertilization, you should also water it properly.
Third, autumn fertilizer body. Ginkgo biloba seed is generally mature from late September to mid-October after harvest to deciduous, and there are 1-2 months of growing season. After the Ginkgo biloba seedlings are harvested, the second peak of the root growth can be generally seen. The flower buds that have been bred are also continuing to develop. Therefore, the post-harvest fertilization can make up for the nutrient consumed by the tree results and restore the tree vigor to ensure the second Annual yield. Before the root growth peak application, the absorption and utilization of fertilizers are also relatively high. The body-fertilizer is preferably applied to the farmyard manure, and it is better to use the ditch. The digging direction and depth can be appropriately changed. Even if some of the root systems are cut off, the plant growth will not be affected. The amount of fertilizing can be 3-4 times the annual production of heavy bar fertilizer, that is, the production of 100 kilograms of white fruit plants, you can apply 300-400 kg bar fertilizer.
Fourth, in the winter basal fertilizer. Before and after the Spring Festival every year, deep trenches should be opened and basal fertilizers should be re-applied once. Basal fertilizers are soil fertilizers and cake fats as ideal fertilizers, and sufficient ginkgo trees for body-building fertilizers can be used. At this time, even less basal fertilizer can be applied.
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