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土壤水环境系指作物根系生长层的土壤水分状况及其有关连的浅层地下水、降水、作物腾发量的变化。水是水、肥、气、热等环境因子中最活跃的因素,最终影响到作物的产量。因此,研究土壤水环境对棉麦及其腾发量的影响,不仅具有充实科学理论的内涵,而且对提高棉粮产量有指导生产实践的重要意义。地处长江口北岸的南通县农田水利试验站,土壤质地上层为轻壤土,下层为砂壤土,
Soil water environment refers to the soil moisture status of crop root growth and its associated shallow groundwater, precipitation, crop evapotranspiration. Water is the most active factor in environmental factors such as water, fertilizer, gas and heat, which will eventually affect the crop yield. Therefore, studying the influence of soil-water environment on cotton barley and its evapotranspiration not only has the connotation of enriching scientific theory, but also has the important significance of guiding the production practice to increase the yield of cotton. Nantong County farmland water conservancy experimental station is located in the north bank of the Yangtze River estuary, the upper soil texture is light loam, the lower is sandy loam,