黑龙江农业科学Issue(4)：109-113,5.DOI:10.11942/j.issn1002-2767.2017.04.0109
不同复配土比例对苜蓿幼苗光合特性的影响
Effects of Compound Soil Ratio on Photosynthesis of Medicago sativa Seedlings
摘要
Abstract
In order to efficiently use aeolian sandy soil,the aeolian sand and loess soil ratio was set as 0%,25%,50%,75% and 100% respectively for observation and analysis,the effect of different compound soil ratio on photosynthesis of Medicago sativa seedlings was studied.The results showed that photosynthetic rate (Pn),stomatal conductance (Gs),intercellular CO2 concentration (Ci) and water use efficiency (WUE) of Medicago sativawere increased at first and then decreased,while transpiration rate (Tr) showed a rising trend with the loess soil ratio increased gradually.Each index was at significant level compared with CK.The maximum photosynthetic rate(Pn),stomatal conductance(Gs),intercellular CO2 concentration(Ci) and water use efficiency(WUE) were occurred in 25% treatment.However,transpiration rate(Tr) was at maximum in 100% treatment.Using subordinate function to evaluate comprehensively,it was showed that comprehensive evaluation index of Medicago sativa was at the highest in 25% treatment,indicating that the aeolian sand and loess soil at 25% ratio was better to promote the growth of Medicago sativa seedlings.关键词
复配土/苜蓿/光合特性/隶属函数法Key words
compound soil/Medicago sativa/photosynthesis/subordinate function分类
农业科技引用本文复制引用
潘霞,高永,刘宗奇,任昱..不同复配土比例对苜蓿幼苗光合特性的影响[J].黑龙江农业科学,2017,(4):109-113,5.基金项目
国家科技支撑计划资助项目(2015BAC06B01-03) （2015BAC06B01-03）
