基于水分上限的灌溉控制对黄瓜水分利用效率的影响  

The Effect of Controlling Irrigation Maximum on Water Use Efficiency of Cucumber

作　　者：廖凯[1,2] 范兴科[1,3] 

机构地区：[1]中国科学院水利部水土保持研究所,陕西杨凌712100 [2]中国科学院研究生院,北京100049 [3]西北农林科技大学,陕西杨凌712100

出　　处：《灌溉排水学报》2011年第1期54-56,60,共4页Journal of Irrigation and Drainage

基　　金：国家高技术研究发展计划(2006AA100208)

摘　　要：在盆栽条件下,以相同灌水下限和不同灌水上限为控制条件,研究了黄瓜在整个生育期内不同灌水量处理对其生长、产量、品质和水分利用效率的影响。结果表明,灌水上限为90%田间持水率的非充分灌溉处理效果较好,相比以田间持水率为灌溉控制上限的充分灌溉和以80%田间持水率为灌水上限的非充分灌溉处理,茎杆直径、根干质量、根冠比和黄瓜品质均呈明显优势;单株黄瓜产量与充分灌水处理相比仅减少0.9%,水分利用效率达到39.69 g/kg,提高16.84%。Growth dynamics,yield,fruit quality and water use efficiency of cucumber,under different soil irrigation maximums during whole growth stages,were studied in pot experiment.And the results showed that the treatment under irrigation maximum of 90% field water capacity was more reasonable than other treatments.And the outcomes of stem diameter,dry root weight,root-top ratio and fruit quality of the treatment under 90% field water capacity irrigation maximum were significant better than those under 100% and 80%.Although the yield of per-plant of the treatment under 90% field water capacity irrigation maximum decreased by 0.9% compared with that under 100%,the water use efficiency,which was 39.69 g/kg,increased by 16.84%.

关 键 词：黄瓜 灌溉上限 根冠比 品质 产量 水分利用效率 

分 类 号：S642.2[农业科学—蔬菜学]