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一、试验概况: 1977—1980年,我们对滴灌技术进行了试验研究。其项目有滴灌效益、滴灌系统的设计、施工和管理、滴灌制度与作物耗水规律等。其中滴灌效益对比试验是在石河子分五个点进行的。当地绝对最高气温42℃,绝对最低气温-39.8℃,作物生育期间(4—10月)蒸发量为1372毫米,降水量为144毫米,相对湿度为53％,试验地为非盐化土壤,质地分别为砂壤、中壤和重壤,地下水位8米以下,滴灌水源为井水,水质良好,水温12℃左右。试验作
First, the test profile: 1977-1980, we conducted a pilot study of drip irrigation technology. The project has drip irrigation benefits, drip irrigation system design, construction and management, drip irrigation system and crop water consumption law. Drip irrigation benefit comparison test is carried out in Shihezi five points. The local maximum absolute temperature of 42 ℃, the absolute minimum temperature of -39.8 ℃, during crop growth (April-October) evaporation of 1372 mm, the precipitation is 144 mm, the relative humidity of 53%, non-saline soil test sites, texture Sandy soil, mid-soil and heavy soil respectively. The underground water level is below 8 meters and the drip irrigation water source is well water. The water quality is good and the water temperature is about 12 ℃. Test made