In arid and dry areas, soil moisture is the main environmental factor that restricts crop growth. Soil moisture meter is a scientific instrument that can always accurately measure soil moisture content and moisture content. When studying the water relationship of drought-resistant plants, leaf water potential has been widely used as an indicator of plant water status. 1. Effect of Soil Moisture on Wheat Water Characteristics In arid and dry areas, moisture is the dominant factor affecting crop water characteristics and growth characteristics. The water characteristics of plants are a structural response to environmental changes. It is an important indicator of plant tolerance to drought stress, such as water saturation loss, water content, leaf water potential, etc., and is basically consistent with the results of this study. The water retention capacity of the leaves is a reflection of the water holding capacity and the ability of drought resistance of the plant tissues. The results of this study show that the water retention capacity of wheat leaves increases with the decrease of soil moisture content. This feature shows that wheat is a kind of drought-resistant ability. Tree species, wheat can be cultivated in large areas in the northwest is a good proof. 2. Effect of soil moisture on water consumption of individual plants Studying the law of water consumption of plants has a very important practical significance for forest management in arid and semi-arid regions. At present, scholars at home and abroad mostly focus on the transpiration rate and focus on the instantaneous water consumption of plants. There are few quantitative studies on the actual water consumption of tree species. In this study, the water consumption per plant of wheat was studied by pot experiment. The results showed that the water consumption per plant of wheat decreased significantly with the decrease of soil moisture. The results of soil moisture measuring instrument showed that the soil moisture was sufficient and light. When drought occurs, the water consumption per plant decreases with the decrease of soil water content. When the drought is further aggravated, the water consumption is significantly reduced, which is basically consistent with the findings of Li Jiyue et al. 3. Effect of soil moisture on wheat growth characteristics Plant growth behavior is the ultimate manifestation of a combination of environmental factors. In arid and dry areas, soil moisture is the main environmental factor that restricts crop growth. Different soil moisture treatments had a significant effect on total wheat biomass, and total biomass decreased with decreasing soil moisture. To obtain larger biomass, the soil moisture content should not be less than 52% Hf. In each soil moisture treatment, the growth of wheat on loessial soil was greater than Shagai loess, which was due to the better physical and chemical properties of Loessian soil than Shagai Loess. This is consistent with Wang Naijiang et al.'s conclusion that the ability of drought resistance and growth of Daxing apricot is improved by improving soil physical and chemical properties through fertilization. Different soil moisture treatments had no significant effect on the distribution of wheat biomass. This is different from the results of literature research. The reason may be that there are differences in the growth characteristics of different tree species. Related equipment: Soil moisture temperature recorder Soil analyzer
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