Fertilizer management In the dry season, we must pay attention to strengthening the management of fertilizer and water, which can prevent leaves from falling and fruit and promote fruit expansion. Fertilization should be based on organic fertilizers, with a small amount of nitrogen fertilizer plus water. Generally, 50 kg of decomposed pig and manure is planted per adult fruit tree. At the same time, it is best to re-cast 15-20 kg of manure and manure, or use 0.5~0.25 kg of urea and 15-20 kg of water to mix and evenly pour into the fertilization ditch. In orchards lacking phosphorus, potassium and trace elements, phosphorus and potassium fertilizers and trace elements should be applied in an appropriate amount to increase the drought resistance of fruit trees and improve fruit yield and fruit quality.
The tree cover covers the grass and covers the grass, and the summer can prevent drought and temperature, and the winter can prevent freezing and warming. In the high temperature and drought, the grass can reduce the ground temperature by more than 7 °C, prevent the occurrence of sunburn and control the growth of weeds, and play the role of water retention, fertilizer conservation and soil conservation. The tree cover grass is usually cut into 10~15 cm long and covered with straw, wheat straw, dry weed, and silk grass, and the thickness is 10~15 cm. Cover grass can be covered along the range of 1.5 to 2.5 meters.
Note that when the water is hot and dry, the water evaporation is large, and it is not enough to lack water. In case of excessive drying of the soil, the leaves will appear curled and yellow, and should be watered or watered in time. Conditional orchards can be sprayed or micro-flooded to prevent high temperature and drought from harming the fruit trees. The irrigation should be completed in the evening to the morning, and the water should be permeated once every 7 to 10 days on sunny days. By watering or watering, the body temperature of the fruit tree and the temperature of the soil can be adjusted, which is beneficial to the fruit tree to absorb the water and nutrients in the soil, increase the vitamin C and sugar content of the fruit, and ensure the safety of the fruit trees over the high temperature season.
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