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甜瓜是新疆对外(区外、国外)贸易的拳头产品.已往的试验表明,甜瓜采用滴灌对节约用水、抑制病害、增进瓜的品质均有明显效果.为了使甜瓜滴灌建立在更加可靠的基础上,我们于1985—1987年进行了甜瓜需水规律的研究.一、试验概况试验设在本院安宁渠试验场林业站,试验地土质为粘壤,土层厚约1米,田间最大持水量为25—28%,土壤干容重1.4—1.5吨/米~3,含有机质1%左右,地下水埋深18米以下,灌溉水为井水,滴灌系统季节固定.试验区甜瓜生育期间(5月下旬至9月上旬)的气象条件是:1985年降雨71.6毫米,蒸发1543.8毫米,平均气温23.0℃,极端最高气温36.0℃;1986年则分别为38.9毫米、1355.0毫米、24.1℃和36.0℃,1987年分别为53.2毫米、1172.5毫米、23.6℃和37.7℃.
Melon is the leading product of Xinjiang’s foreign trade (outside the region, foreign countries) .Past experiments have shown that the use of drip irrigation melon to water conservation, disease suppression, improve the quality of melon have a significant effect.In order to make the melon drip irrigation on a more reliable basis , We conducted a study of watermelon law from 1985 to 1987. First, the test profile The test is located in our hospital Anningqu Experimental Site Forestry Station, test soil is clay, soil thickness of about 1 m, the maximum field capacity Is 25-28%, soil dry weight is 1.4-1.5 t / m ~ 3, organic matter is about 1%, groundwater depth is 18 meters, irrigated water is well water, drip irrigation system is fixed in season. From late October to early September), the weather conditions were: rainfall of 71.6 mm in 1985, evaporation of 1543.8 mm, mean temperature of 23.0 ° C and extreme maximum temperature of 36.0 ° C; in 1986 it was 38.9 mm, 1355.0 mm, 24.1 ° C and 36.0 ° C, respectively The years were 53.2 mm, 1172.5 mm, 23.6 ° C and 37.7 ° C, respectively.