First, planting It is suitable for planting in the middle of October or in the spring of the next year after thawing in the spring. It can be planted at a row spacing of 2m3m and 111 plants at 667m2. The depth of the planting hole is 80cm deep and 1m wide. The bottom layer of the hole is layered with organic fertilizer, and the soil is covered with soil, which can be planted. When planting, be practical, pour enough water, and cover a layer of fine soil. Second, soil management 2.1 deep renovation soil Li tree roots have strong absorption and soil aeration is the basic requirement of orchard. Deep turning can improve soil aeration and water permeability, regulate soil temperature and promote microbial activities, thus fundamentally improving soil physical and chemical properties. Good soil conditions are conducive to root growth and enlargement of the absorption area. In the deep turn between the row spacing, it is necessary to dig a trench of 40cm deep and 100cm wide, which should be shallow near the root and gradually deepen outward, preferably 10~40cm. 2.2 cultivating weeding Each time deep watering or raining, cultivating should be carried out to loosen and ventilate the soil, prevent knotting, protect the fertilizer, weed, and reduce the storage and breeding sites of pests and diseases. The depth of cultivating can vary according to different seasons. It should be 5~10cm in early spring and 3~5cm in 4~8 months. Try not to damage the root system. The depth of cultivating in November is above 10cm. 2.3 Reasonable intercropping In order to make full use of the land space in the park, the forest economy will be developed. Chickens, ducks, etc. can be raised under the forest, and dwarf crops such as strawberries, peanuts and sweet potatoes can be planted at the forest spacing. Third, timely and appropriate fertilization In the course of one year's growth and development, in addition to the normal growth results, Li Shu also needs to form the flower buds required for the second year of results. Therefore, fertilization must be carried out in a timely and appropriate amount to ensure a bumper harvest and stable production. 1 fertilization period 1.1 base fertilizer: mainly compost, poultry fertilizer, animal fat, suitable period is from early October to mid-November, combined with deep tillage and fertilization in autumn. 1.2 topdressing. Mainly based on the needs of the growth and development of pear trees, mainly available nitrogen fertilizer. Generally, it is applied in stages before flowering, after the growth of new shoots is basically stopped, and during rapid expansion of fruit, and it is carried out 2 to 4 times a year. 2 fertilization amount The amount of fertilization of plum trees is carried out by soil fertility, tree strength, different varieties and fertilizer requirements. 2.11~3 years old plum tree. According to the 667m2 fertilization amount of 5000kg or more, the base fertilizer is applied to 667m2, 30~60kg urea, human feces and urine 1000kg, and nitrophosphate fertilizer 25kg. 2.24 years old and above Li Shu. The base fertilizer is about 667m2, the amount of fertilizer is about 7000kg, the topdressing fertilizer is 667m2, the urea is more than 60kg, the human waste is about 2000kg, the potassium dihydrogen phosphate is about 30kg, and the nitrophosphate is 40kg. 3. Fertilization method 3.1 base fertilizer. Generally, starting from the main trunk 30cm, centering on the trunk, it is radially outward, digging 3~7 grooves with a depth of 30~50cm, and the length is centered on the outer edge of the canopy vertical projection. After filling the soil with fertilizer, the soil is covered. Sealing the trench. Or dig 4~8 holes of 30~60cm wide, long and deep around the trunk, and fill it after fertilization. Note that the location of the excavation should be replaced every year. When applying the base fertilizer, the depth and width of the trench should be determined according to the distribution of the root system and the amount of fertilizer. In plots with high groundwater levels, fertilization should be shallow to prevent rotten roots. Generally, the crown is small, close to the trunk, the main root can be shallower, and the fertilizer can be less. 3.2 topdressing. Ground fertilization is more often used. That is, under the canopy, according to the size of the canopy, 4~8 holes with a diameter of about 30cm are dug, and the fertilizer is evenly applied, watered and filled. Foliar fertilization commonly used 0.3% ~ 0.4% urea, 0.3% ~ 0.5% potassium dihydrogen phosphate, 0.5% ~ 1.0% superphosphate, 0.1% ~ 0.2% iron, zinc and other trace elements, 20% grass ash leaching solution. Note that foliar fertilization can be carried out simultaneously with spraying. In order to prevent the new shoots from being contaminated by fertilizer poisoning, it can be sprayed on cloudy or sunny afternoons. The concentration of young trees should be low, and the concentration of mature trees can be high. Fourth, timely irrigation, drainage According to the growth characteristics of plum trees, the amount of water required in the early stage is large and the latter is small. In the middle of the year, the spring rain is not too sloppy, and it is beneficial to growth, flowering and fruiting. After the summer and autumn, there is less rain, as long as it is not excessively dry, it will help Li Shu improve its quality. 4.1 Drainage Li Shu is a drought-tolerant and flood-tolerant tree species. It is most likely to drown in places where water is stored for 2 to 3 days. Pay attention to drainage, especially in summer and autumn. 4.2 irrigation Although Lishu is drought-tolerant, long-term drought will also affect the results, so watering should be timely to ensure high yield. Use the method of pulling branches to open the angle; for the varieties with less hair branches, it is necessary to lightly cut and promote branching so as to cultivate the side branches; for the weaker branches, the angle of the branches should be raised and the branches should be properly re-cut. . Leave more branches to enhance its growth potential. Disclaimer: Some articles on this website are transferred from the Internet. 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