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近年来利用高泥沙含量的水质进行淤灌试验已有成果并在生产中开始应用。但泥水用于喷灌农作物的研究资料缺乏,故本站于1978——1979年进行了不同含泥量水质喷灌对棉花生育影响的试验,以解决适宜于棉花的喷灌水质最大含泥量指标及有关应用技术问题。一、试验条件和方法试验地力中等偏上,地下水深4——7米,土壤有机质含量1.35％,全氮量0.1386％,全磷量0.1443％,土壤容重1.42,一米内田间最大持水率24.5％。棉花喷灌供试泥沙样本均自泾惠渠中游耕地的淤泥池中采得,经过晒干、碾碎过筛(孔径1毫米)的风干样本,测定土壤含水率6.67％,据此计
In recent years, the use of high sediment content of water quality silt irrigation test has been successful and started production. However, there is a lack of research data on the use of muddy water for sprinkling crops. Therefore, the experiment on the effects of sprinkling with different amounts of muddy water on cotton production was carried out in 1978-1979 in order to solve the problem of the maximum mud content suitable for sprinkling of cotton, Applied technical issues. First, the test conditions and methods The test ground force is moderately upper, groundwater depth 4 - 7 meters, soil organic matter content 1.35%, total nitrogen 0.1386%, total phosphorus 0.1443%, soil bulk density 1.42, one meter maximum field water holding capacity 24.5%. Cotton sprinkler samples were collected from silt ponds in the mid-stream of Jinghuiqu. After drying, the screened samples (1 mm in diameter) were air-dried to determine the soil moisture content of 6.67%