秸秆还田对土壤理化参数及冬小麦形态特征和光合性能的影响  

Effects of Straw-return on Soil Physicochemical Parameters, Morphological Characteristics and Photosynthetic Performance of Winter Wheat

作　　者：张茜茜 王海峰[1,2] ZHANG Xi-xi;WANG Hai-feng(School of Water Conservancy and Hydropower,Hebei University of Engineering,Handan 056038,Hebei,China;Department of Landscape Architecture and Urban Design,Woosuk University,Jeonju 565701,Korea)

机构地区：[1]河北工程大学水利水电学院,河北邯郸056038 [2]韩国又石大学风景园林与城市设计系,韩国全州565701

出　　处：《节水灌溉》2019年第12期18-22,26,共6页Water Saving Irrigation

基　　金：国家重点研发计划项目(2017YFD0300905)

摘　　要：为研究秸秆还田处理对土壤理化参数和冬小麦的影响,通过大田试验对黄淮海平原区的冬小麦进行秸秆覆盖处理,探讨秸秆还田对土壤理化参数及冬小麦形态特征和光合性能的影响机理。结果显示,秸秆还田导致土壤含水量显著增加,但土壤N和P含量显著降低,而对土壤K含量没有产生显著影响;秸秆还田显著增加冬小麦的叶面积,且使气孔的空间分布更加规则,从而有效提高叶片的净光合速率,最终增加冬小麦的穗粒数和千粒重。In order to understand the effect mechanism of straw-return on the growth parameters of winter wheat,the straw mulching treatment was conducted on wheat in the Huang-Huai-Hai plain through field experiment,and its soil physicochemical parameters,morphological characteristics,and photosynthetic performance were observed.The results showed that straw mulching resulted in a significant increase in soil water content,but the N and P contents in the soil were significantly reduced,while the K content in the soil was not significantly affected.Straw mulching can significantly increase the leaf area of winter wheat and make the stomatal spatial distribution more regular,so as to effectively improve the net photosynthetic rate of leaves and finally increase the panicle grain number and 1000-grain weight of winter wheat.

关 键 词：秸秆还田 冬小麦 土壤理化参数 形态特征 光合性能 

分 类 号：S27[农业科学—农业水土工程]