摘要
根据番茄的生长发育特点,分别以50%、60%、75%田间持水量作为苗期、花期、结果期的土壤水分下限,按照不同的土壤水分上限设置不同的灌水量处理。对番茄不同生育期的灌水量、耗水量、产量、水分利用效率及其关系进行了研究。结果表明,灌水控制上限和下限之间存在交互效应,番茄灌水量、耗水量与其具有显著的正相关性;当灌水控制下限一定时,耗水强度和耗水模数随灌水控制上限的减小呈降低趋势;番茄苗期、花期和结果期的灌水控制上、下限(占田持)分别控制在50%～65%、60%～75%和75%～85%为宜。
Based on the growth and development rule of tomato, the lower limits of soil moisture in its seedling stage, flowering and fruit setting stage and fruiting bearing stage were respectively set as 50%, 60% and 75% of the field maintaining water quantity, different irrigation water amount was controlled according to different soil irrigation maximum. The relationship between irrigation water and water consumption amount, yield and water use efficiency were studied.Results indicate that, the irrigation requirement and water consumption amount were significantly correlated with the upper and low irrigation limits that have interactive effect. Along with the increase of water stress degree, the modulus and intensity of water-consumption decreased when the low irrigation limit was the same, it is advantageous to gain high yield and water production efficieney when the upper and low irrigation limits（ the percent comparing to the field water capacity）in seeding stage, flowering and fruit stage and fruit setting stage is 50% -65%, 60% -75% and 75% - 85%.
出处
《自然资源学报》
CSCD
北大核心
2009年第1期50-57,共8页
Journal of Natural Resources
基金
中国科学院知识创新工程重要方向项目“半干旱地区农业高效用水的生物学原理及其应用”(KZCX3-SW-444)
关键词
西北地区
温室番茄
不同土壤水分处理
产量
耗水
Northwest China
tomato in greenhouse
different soil moisture
yield
water consumption
