新疆阿勒泰地区北屯灌区田间沟畦节水灌溉试验研究

Test Study on Reducing Expenditure Irrigation of the Furrow and Border in a Field at Beitun Irrigation Region of Altay in Xinjiang

通过 1998～ 2 0 0 0年田间节水灌溉试验 ,确定了北屯灌区戈壁土层畦灌春小麦最佳土壤平均含水率下限为 6 5 %～ 8 0 % ,灌水后土壤平均含水率为 17%～ 18% ,灌溉定额为 75 0 0m3·hm- 2 ;沟灌油葵最佳土壤平均含水率下限为 6 5 %～ 8 0 % ,灌水后土壤平均含水率为 14%～ 18% ,灌溉定额为 375 0m3·hm- 2 。

Reducing expenditure irrigation test of a field had developped at gobi soil of the Beitun irrigation region. Soil optimal medial water content of main cropduring different bear time and corresponding crop irrigation requirment had receved.Suitable irrigation procedure had formutated at this irrigation region. It had important meaning for practising water quantiry to reduce irrigation cost to increase output and to prevent soil secondary salt lick and to develop agriculture .