摘要
【目的】为控制土壤水分、提高水分生产率和实现节水与高效提供科学依据。【方法】利用彭曼-蒙太斯法对2年的气象资料间接计算出阿克苏地区全生育期红枣日平均耗水量，并分析其变化规律。【结果】试验区红枣树耗水规律：3月初．5月中旬日耗水量保持在2，4mill，从5月下旬～8月下旬日耗水量增加到4～6mm，从8月下旬～10月中旬日耗水量又下降到2—3mm。【结论】确定根渗灌红枣适宜的灌溉制度为：灌溉定额5865m^3／bm^2，灌水定额为255m^3／hm^2，整个生育期灌水21次。
[ Objective] To provide a scientific basis for controlling soil moisture content, improving moisture content efficiency, and realizing water- saving and high- efficiency. [ Method] In this paper, the evaporation of red- jujube in the Akesu irrigation area was indirectly gained from weather information of two years based on the equation of Penman - Monteith, and the laws of change has been analysed. [ Result]The water consumption pattern of the red jujube trees in the test area was obtained from the analysis：from the beginning of March till mid - May the daily consumption amount of water maintains between 2 - 4 mm, from the end of May till the end of August the daily consumption amount of water increased 4 - 6 mm, from the end of August till mid - October the daily consumption amount of water descended to 2- 3 mm. [ Conclusion] For rootirrigation by infiltration, the suitable irrigation schedule is the follwing：the irrigation quota is 5 865 m3/hm2, the irrigation water quota is 255 m3/hm2, and 23 times of irrigation during the whole growth period.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2010年第11期2189-2194,共6页
Xinjiang Agricultural Sciences
基金
国家"十一五"科技支撑项目"干旱区低压根渗灌和蓄水灌技术研究与示范"(2007BAD38B06)
关键词
彭曼-蒙太斯
红枣
根渗灌
灌溉制度
Penman - Monteith
red - jujube
root - irrigation by infilitration
irrigation schedule
