中国稻米2018，Vol.24Issue(3)：10-15,6.DOI:10.3969/j.issn.1006-8082.2018.03.003
不同土壤类型下灌溉方式对水稻产量形成及水分利用效率的影响
Effects of Different Irrigation Methods on Yield and Water Use Efficiency of Rice in Differ-ent Soil Types
摘要
Abstract
In order to discuss the influence of different irrigation methods on yield and water use efficiency of rice, an experiment was conducted in loam, clay, sand, using japonica rice Nangeng 9108 as material. The results showed that compared with the water layer irrigation treatment(CK), mild water saving irrigation treatment(soil water potential -15kPa)and severe water saving irrigation treat-ment (soil water potential -25 kPa) significantly improved rice yield and water use efficiency in the condition of loam and clay, the grain yield of mild water saving irrigation treatment were increased by 13.89%and 10.96%, the grain yield of severe water saving irri-gation treatment were increased by 7.02%and 6.61%, the water use efficiency of mild water saving irrigation treatment were increased by 32.0%and 26.0%, the water use efficiency of severe water saving irrigation treatment were increased by 29.0%and 26.0%, respec-tively; in the condition of sand, the yield of mild saving irrigation treatment and severe water saving irrigation treatment were signifi-cantly lower than CK, but the water use efficiency was improved, the yield of mild water-saving irrigation treatment was reduced by 5.67% compared with CK, water use efficiency was increased by 18.0%; the yield of severe water saving irrigation treatment was re-duced by 11.22%, water use efficiency was increased by 21.0%. The results showed that in the condition of loam and clay, the mild water saving irrigation could increase the dry matter accumulation, photosynthetic potential, population growth rate and net assimila-tion rate of the aboveground population, eventually increase the grain yield.关键词
水稻/土壤类型/节水灌溉/产量/水分利用效率Key words
rice/soil type/water saving irrigation/grain yield/water use efficiency分类
农业科技引用本文复制引用
陈梦云,李晓峰,陈雨霏,任红茹,汪伟,荆培培,霍中洋..不同土壤类型下灌溉方式对水稻产量形成及水分利用效率的影响[J].中国稻米,2018,24(3):10-15,6.基金项目
国家重点研发计划项目(2016YFD0200805) （2016YFD0200805）
江苏"农业三新"工程项目(SXGC[2016]321) （SXGC[2016]321）
江苏农业科技攻关(BE2015340,BE2016351) （BE2015340,BE2016351）
江苏省农业科技自主创新项目(CX[15]1002) （CX[15]1002）
