Li Shu is planted in many places. How should Li Shu apply fertilizer? Next, I want to introduce Li Shu's fertilizer technology.
1. Basic fertilizer: Plum tree is a kind of deciduous fruit tree. Early spring flower buds, flowering and fruiting require a lot of nutrients, including mineral elements. Since the root growth of the cycle is very small, the absorption function is very weak and can only be satisfied from the nutrition of the root, the storage of the root system.
Traditionally, the fertilizer application period of Li Shu was arranged in the agricultural off-season in January (December December), before the plum tree sprouted. As mentioned above, the early spring root failure recovery function, with the base early spring tree nutritional supplements is limited, but played an important role in the vegetative growth of trees in April, to some extent, leading to vegetative growth and reproduction The contradiction between growth and physiological decline. Basal, if the application time advances to the second growth peak of plum roots throughout the year of fertilization, the active root physiological activity in September continues the morphological aspects of the aerial part (late) and flower bud differentiation of photosynthesis, after roots absorb nutrients Timely promotion of the tree system to build more organic matter stored in the tree and meet the nutritional needs of the second year of spring germination, flowering, while improving the quality of flower bud differentiation. Therefore, application of base fertilizer is applied by applying base fertilizer from early September to early October each year.
In the year after fertilization, according to the different age of plum trees and the estimated yield of the year, the former fertilizer, fat fruit, and fruit fertilizer.
2. Pre-flowering fertilizer: Traditional production attaches great importance to raw fertilizer, but it often uses chemical fertilizer before and after flowering. According to the physiology of Li Shu, the following methods can be used: on the basis of the application of the basic fertilizer in September, a small amount of quick-acting fertilizer is used to supplement the yield and tree potential of the year 20 days before flowering.
3. Sturdy fruit fertilizer: applied during the hardening period of plum trees, and the fruit is applied to quick-acting fertilizer 7 days before the second rapid growth. From late May to June, it will determine the number of flower buds in the second year. Therefore, the application of chemical fertilizers can not only directly promote the increase of current production, but also become the material basis for the bumper harvest next year. In a wide range of publicity and promotion, the application of Zhuangguo has attracted the attention of Yongtai fruit farmers.
4. Picking fruit fat: In July, before the fruit picking of plum trees, during this period, as the beginning of flower bud differentiation, especially for the supply of fresh fruit orchards, the relative consumption of nutrients will increase due to later harvest. Therefore, in order to ensure high yield and stable production in the second year, it is necessary to fertilize the orchard with higher annual output value.
In summary, fertilization should be concentrated on the basic fertilizer for one year, accounting for 60% of the annual fertilization amount, mainly organic fertilizer, and the deep conversion rate in autumn. It must be ensured that the application of fertilizer and fruit fertilizer can achieve stable yield and high yield.
The above is the introduction of Li Shu fertilization technology. Friends who plant Li Shu can refer to the above fertilization methods, combined with the actual planting situation, and rational fertilization.
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