Improving the nutrient storage of fruit trees Five measures Nutritious storage of fruit trees in winter The successful completion of the process of sprouting, flowering, drawing, spreading, rooting, fruit setting and fruit formation during overwintering and the next growing season and its quantity and quality Significant influence. Therefore, improving the nutrient storage of the tree has an extremely important effect on the quality, high yield, and high efficiency of the fruit tree. The period from harvesting to defoliation is a critical period for tree nutrient storage. During this period of time, the management of the tree must not be relaxed. The following production techniques must be taken care of. 1, in the early autumn Shizu base Fertilizer to organic fertilizer, such as compost, ring fertilizer, green manure and crop stalks. In mid-September, according to the standard of 1 kg of fruit 1-2 kg of soil miscellaneous fertilizer or 1 kg of fruit 0.5 kg of chicken and sheep manure, it is applied into a radial groove of 30-40 cm depth. When applying basal fertilizer, it is advisable to mix appropriate amounts of available nitrogen, phosphorus, potash, and trace fertilizers such as boron, iron, and zinc to increase fertilizer utilization and comprehensive nutrient levels. 2. After harvesting fruits of early-maturing and early-maturing nitrogen fertilizers in the autumn, before the fruits of the late-maturing varieties are harvested, urea is sprinkled in the tree trays according to the standard for producing 1 kg of urea per 100 kg of fruit. More than 60% of the nitrogen applied this time can be stored in the roots, which is important for improving the nutritional storage level. 3, timely harvesting, pouring fruit to be harvested properly, harvesting too late, affecting the tree nutrient storage. After the fruit is harvested, it should be properly watered in case of drought. Watering at this time helps the decomposition of the fertilizer and the absorption of the roots, promotes the growth and development of fruit trees in the later period, and improves the nutrient storage level. 4. Spraying urea before defoliation before defoliation is very important for increasing the nutrition of the tree. It has been proved that about 1% of the urea solution sprayed on the leaves in the first half of the fall leaves can prolong the life span of the leaves, enhance the function of the leaves, and increase the photosynthetic intensity by 0.5-1 times. It can also improve the nutritional status of the roots, promote the development of the root system, and increase the absorption capacity. The overall metabolic process of fruit trees. The most important is to promote the reflux of nitrogen from the leaves to the tree and roots, thereby increasing the content of organic nitrogen in the tree. 5. Strengthen the protection of the leaves After the fruit is harvested, immediately spray a fungicide with eradicating effect and an insecticide against the leafworm and leafminer to control the pests that damage leaves, extend the life span of leaves, and enhance the photosynthetic activity of leaves. Efficiency, to achieve the purpose of increasing the nutrient accumulation of the tree.
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