Drought orchard
First, farming security
1. After the soil is thawed in spring, the soil will be ploughed in time. After cultivating, the moisture will not evaporate if the soil moves upwards. At the same time, it can also improve the temperature and soil ventilation performance, promote microbial activity, and accelerate soil nitrification, which is extremely beneficial to root growth and nutrient absorption. After each rainfall, the cultivator is suitable for cultivating, cutting knots, cutting off the capillary, reducing evaporation area, and reducing water loss.
2. In the dry season (from April to June), loose soil weeds, the number of which depends on the degree of drought and the number of weeds. The weeding effect is better during the emergence and weeding stage of weeds. The weeding depth is generally 6-10 cm.
3. Before the advent of the rainy season (July-September), the ploughing of the soil will remain stable, so as to accumulate more rainwater, reduce water and soil loss, cut off some root systems, and promote spring stop in time, which is conducive to flower bud differentiation. However, in the year when there is less rain, it should be levelled in time.
4. After the fruit is harvested, combine with the base fertilizer to plow the soil, accumulate rainwater, increase soil permeability, and eliminate pests. Immediately after the end of the rainy season, protect the dragons wintering.
Second, cover security
1. After the biological coverage, the amount of evaporation is significantly reduced, soil moisture is maintained (soil moisture is often 13-16%), and runoff does not occur in case of heavy rainfall, preventing soil erosion and salt, increasing organic matter content of soil, and preventing weeds. Grow. The specific approach is: in the orchard used as straw, weeds, green manure cut, cover 5-20 cm of grass cover, cover all year round does not fall into the ground. In areas where grass is abundant, we will strive to cover the whole park. As far as possible, the straw, weeds, etc. are crushed and mixed to cover the entire park. The grass source is different from the world, but it can only be used to steal the tree disk, but the thickness must meet the requirements. Weeds cover all seasons, all seasons can be carried out. Coverage process and grass cover consequences The park should be protected against fire. After covering the grass, sprinkle the strips around the edge of the canopy to prevent wind blows. Once a fire breaks out, it can also prevent the spread. But can not be soiled on the grass, otherwise it will affect the coverage of air permeability.
2. After the mulching film is covered, the effect of reducing the evaporation of soil moisture is significant. At the same time, the deep layer of soil moisture can be referred to the tillage layer. Generally, the soil moisture content can be increased by 1 to 4%, which will improve the physical and chemical properties of the soil in the early stage. Big. Since the reflected light and scattered light are increased after the coating, the light between the strains is improved, which is extremely favorable for photosynthesis and fruit coloring. After the spring rain, the trees were covered with trees and the membranes were uncovered and cleaned up in the autumn fertilization to prevent the waste film from penetrating the soil and affecting the root growth.
Three, snow cover
Snow accumulation can increase the soil moisture of the tree tray, and can also protect the root system from freezing injury and reduce the sticking of branches. It is an important measure to increase the soil moisture content in arid regions. During heavy snowfall in winter, the snow collected on the road TianTian and ChuangJi etc. is transported to the orchard, piled under a tree tray and leveled and compacted along the tree line, and then covered with soil or straw to ensure the infiltration of snow.
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