2. Seedling planting: The spacing between pistachios should be 3m× 4m or 4m× 5m, and 33~55 plants should be planted per mu. The close planting garden can plant 83 ~11plant per mu, and both finished seedlings and sprouts can be used for fixed planting. Before planting, dig a planting pit with a depth of 60 cm and a diameter of 60 cm. When planting, the roots should be flush with the ground, stabilize the soil while planting, and then water and irrigate. ?
3. Fertilizer and water management: young trees should apply base fertilizer 1 time every year, and each plant should apply about 20 kilograms of fertilizer. The fruiting period is 2~3 years 1 time. Fertilization is generally divided into three times a year, and the first time should be in early spring or autumn and winter, mainly with available nitrogen fertilizer. The second time, during the fruit expansion period, nitrogen and potassium fertilizer were mainly applied. The third time, after the fruit is harvested, compost, manure and other organic fertilizers are mainly used, usually combined with deep ploughing in autumn.
Fourth, plastic pruning: pistachios like light and dry. In high-density cultivation orchards, it is mainly free spindle, while in low-density cultivation orchards, it is mainly nature and happiness.
Free spindle shape: characterized by the central trunk, 10~ 15 main branches are scattered in different parts of the central trunk, and the main branches keep 80~90 degrees with the trunk, and small and medium-sized fruit branches are directly planted on the main branches. ?
5. Flower and fruit management: promote flower bud differentiation, apply more organic fertilizer and rationally allocate pollination trees. Pistachios are self-flowering, but they do not bear fruit. Generally, 1 pollinated variety is arranged in every two rows, which creates conditions for normal pollination of pistachio and is conducive to improving fruit setting rate. ?
Extended data Happy fruit trees have strong adaptability to soil, and can grow on almost all types of soil, especially deep, light or dry calcareous sandy loam and yellow loam, in clay loam, sandy loam, light chestnut soil, light loam and lightly salinized soil. Soil pH7.7-8.0. It can also grow and bear fruit in mountainous and semi-desert areas with poor gravel.
Pistachio nuts are drought-tolerant, light-loving, shade-intolerant, moisture-tolerant, summer waterlogging-resistant and drought-resistant. The taproot is 7-8 meters deep into the soil layer, and the horizontal root is developed, which can extend to more than 10 meters. It is the most drought-resistant fruit tree in the world and an excellent tree species for soil and water conservation. Pistachio nuts have strong adaptability to temperature, and can withstand the high temperature of 42 degrees Celsius and the low temperature of -26 degrees Celsius in Shufu County, Xinjiang.
Strong, healthy and happy fruit trees begin to bear fruit after six years of planting. Each tree can harvest fresh fruit 100-200 kg per year, and ordinary happy fruit trees can produce fresh fruit 70- 130 kg per year.
References:
Baidu encyclopedia? Xinkai fruit tree