Orchard sowing grass is an artificial whole garden planting grass or a ribbon-like planting line between fruit trees, most of which are excellent perennial grasses, or natural grasses. Because the type of grass is selected by hand, it can control the harmful effects of bad weeds on fruit trees and orchard soils. It is an advanced, practical, and efficient soil management method. The benefits of grass in orchards:
Improve the soil and increase soil fertility. Poor soil and low soil fertility in orchards in mountainous areas seriously affect the growth of fruit trees. After planting grasses, the soil fertility can be significantly improved, and the growth of fruit trees can be ensured. In particular, root nodules of leguminous species can easily accumulate organic nutrients and fix nitrogen. Covering the ground for one year, rhizobia per acre can fix 10-13 kg of nitrogen, equivalent to 22-29 kg of urea, coupled with a well-developed root system, and rot and root dead leaves can accumulate large amounts of organic nutrients in the soil.
Effectively prevent soil erosion. Saplings in orchards can significantly reduce soil erosion and enhance the ability of soils to retain water and drought. After planting grass, dense vegetation and well-developed root systems can effectively prevent wind erosion and water erosion, thereby effectively protecting the soil.
Adjust the ground temperature to improve the growth environment of fruit trees. Under the grass conditions, the seasonal changes of surface soil layer and the day-night temperature of the orchard were small, the humidity in the orchard was relatively high, and the photosynthetic efficiency of the leaves was high. The warm winter and cool summer is conducive to the growth and development of fruit trees.
Effectively suppress the growth of weeds and reduce the occurrence and harm of pests and diseases. Orchard grass grows vigorously, can effectively compete with weeds, and inhibit the spread of weeds. Except for the prevention of field weeds in the early stage of growth, grass weeds do not need manual weeding and chemical weed control, and weeds can inhibit the rate of weeds. Up to 55%-70%. Orchard grass can improve the growth environment and nutritional conditions of fruit trees, so that the disease resistance of fruit trees is enhanced. At the same time, it is beneficial to the survival and breeding of natural enemies of pests and reduce the occurrence of pests and diseases.
Improve fruit tree yield and fruit quality. Studies have shown that the above factors can increase the inflorescence number of fruit trees by 3%-6%, inflorescence fruit setting rate by 6%-15%, single fruit weight by 2%-4%, and increase production by 15%-30%. Fruit color, sugar content, VC content, soluble solids increased, nitrate content decreased.
Grass, animal husbandry and compound development, improve the overall economic benefits. Most of the grass planted in the orchard is high-quality forage grass, which is a good feed for herbivorous livestock and poultry. It has high yield, good nutrition, good palatability, and can be cast many times. Orchard grass cultivation is not only conducive to fruit tree production, but also to the development of animal husbandry and aquaculture, greatly improving the comprehensive benefits of orchards.
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