The root is an organ that fixes plants and absorbs and transports water and nutrients from the soil. It is an important contributor to the direct use of soil resources and production. As early as the beginning of the eighteenth century, Germany's Hells began to study the root system of plants, but due to various conditions, the research for more than 100 years has been very slow, and the research carried out was less until the 1930s. The root growth process of more than a dozen crops was systematically studied, and it was pointed out that in order to understand crop production scientifically, it is necessary to fully understand the development of crop root systems, distribution of root groups, and the vitality of roots to absorb water and nutrients at different growth stages, and under different circumstances. The change of the root system 0, the research of the root system is getting more and more attention; at present, the root research has been used as a basic scientific research subject with great potential for further improving crop productivity. In recent decades, researchers at home and abroad have reported many reports on the morphological structure, physiological characteristics, ecological types, and differences in root systems among varieties. The morphology and root groups of root development are, to a large extent, a response to soil conditions (HA Kaczynski, 1931), and there are few such studies. Taking the newly promoted rice crop of upland rice in arid and semi-arid regions as the research object, we tracked, measured, and recorded the whole process of root growth using root analyzers, and carried out studies on the growth and development of root systems of upland rice in different soils, aiming at the development of root systems. Ecological research and large-scale extension of rice planting provide a theoretical reference, so as to establish a high-yielding cultivation technology system of upland rice and improve soil water use efficiency. The differences in growth and development of rice root systems under different soil types are determined by the soil environment and are mainly affected by soil texture, soil water content, and soil permeability. 1. For sandy soil, the upper layer contains many sand grains, very few clay particles, mostly large pores between the grains, good soil permeability, fast drainage and drainage, and more capillary water at the same soil moisture content. Root growth and development of a good environment, resulting in the upper roots of the growth resistance, rapid elongation, long roots, root water content, cell swelling, root thick (smaller than the root length), less secondary roots, root volume, root Heavy and root density; The underlying soil is dominated by clay, sticky and heavy, poor permeability, impeded root development, resulting in a sharp decline in a variety of root parameters: Therefore, the root distribution parameters between 0 and 30 cm are better than the other two soils. . 2. For red soils, there are few soil sand grains, high clay particles, heavy cementation, well-developed soil capillary pores, less large pores, weak water permeability, small water capacity, rapid evaporation and loss of water in the dry season, and lack of nutrients. Thick layers and shallow plough layers result in slow root growth; however, the root system is water-repellent, and with the increase of the vertical depth of the soil and the rise of the groundwater level, the root system will overcome the viscous soil compaction in the form of multi-level branching roots, increasing Absorption area in order to meet the needs of growth and development of fertilizer and water, so the red soil in the deep root distribution parameters better than the other two kinds of soil. 3. For paddy soil, where the soil layer is thick and the plough layer is deep, the hydrothermal fertilizer conditions in each layer decrease with the vertical distribution of the soil, so the growth and development parameters of the root system also decreases. However, because we are planting dryland crops, Rice, so high water, fertilizer, and heat have inhibitory effects on root growth and development, so the land rice in paddy soil is not as developed as the other two soils. Related equipment: Soil grinder Electric constant temperature incubator Round Trampoline,Toys Trampoline,Foot Trampoline,Recreational Trampoline Jiangsu Baoxiang Sports Equipment Co., Ltd , https://www.skyboundus.com