Key points of cultivation techniques of Tengli
Teng pear is an excellent pear variety with the characteristics of early production, strong high yield, excellent fruit quality, strong disease resistance, storage and transportation resistance and so on.
First, wide adaptability: it is suitable to grow in wasteland with good drainage conditions, and wet fields can also be planted after high box and deep trench treatment.
2. Planting specifications: 1, planting 222 plants according to 3 feet × 9 feet mu; 2, planting 136 plants according to 5 feet × 9 acres. In the same year of planting, more than 60% of the pear trees bloomed (in order to facilitate the growth of young trees, all the first flowers should be removed). In the second year, 90% of pear trees bloomed, depending on their tree potential, properly thinning fruit and leaving fruit, and the yield per mu could reach more than 500 jin. In the third year, all the pears blossomed and hung fruit, and the yield per mu could reach 2000, 000 jin. 3, high yield can be achieved year after year under conventional management.
Third, close planting adopts the method of building frame: the output can be increased by more than twice, and the time of setting up and pulling branches will be completed in late September.
Fourth, the use of compound bag bagging method: can make the fruit quality better, mature 10 days earlier, and can prevent a variety of diseases and insect pests, reduce pesticide residues. The bagging time was completed in mid-June.
Fifth, pruning method: adopt the way of thinning branches and not cutting short.
6. Fertilizer and water management: pig manure is mainly used in young tree period, a small amount of water is mixed with water, twice a month, more than two years old trees are still dominated by pig manure, urea, phosphorus and potassium fertilizer are properly applied.
7. Prevention and control of diseases and insect pests: 1. Black heart disease and carbon gangrene are prevented and treated with Dasheng mMel 45 or Lixingtai pesticide, which is operated according to the concentration of pesticide. 2. For pear stem wasps, aphids, skin spot insects and red caterpillars, it is mainly to check frequently, purchase drugs for symptoms, and control them in time. 3. Pay attention to the application of boron fertilizer at flowering stage.
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Management of early Spring in Taoyuan
The main results are as follows: 1. the topography of gully drainage is low-lying, and soil viscosity and waterlogging are the main factors restricting the high yield and quality of peach trees. if the drainage of Taoyuan ditch system is not smooth, the tree will be weakened due to wet damage to roots. Therefore, the outlet ditch of Taoyuan should be cleaned thoroughly to ensure that the drainage is smooth, and the ditch should be deepened if possible. Second, depending on the tree potential, spring fertilizer should be applied early for medium-ripe varieties with more fruit, such as Baifeng, Fenglu, Taqiao and other peach trees, as well as weak trees that have not been fertilized since the beginning of winter. Fertilizer application rate: imported compound fertilizer 0.5: 1 per plant
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Pear fruit appearance grade index
The first-class and second-class basic requirements of the pear appearance grade specification project are fully developed, mature, the fruit is complete and good, fresh and clean, no peculiar smell, abnormal external moisture, stinging, insect fruit and disease. The color and lustre of this variety should be the same as that of this variety at maturity. (G) the single fruit weight of the main varieties of pear is required in Appendix A (Standard Appendix). There may be defects in the shape of the fruit, but there are no defects on the fruit surface. 1) there is no slight crush injury without permission, the area is less than 0.5 cm and the allowable area of abrasion is less than 0.5%.
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