EM菌结合有机物料还田对桃园土壤理化性质及桃叶片光合特性的影响  

Influences of EM application with organic material input on soil physicochemical properties and peach photosynthetic characteristics

作　　者：王志远 张广娜 于军香 郑亚琴 陈修会 管恩桦 WANG Zhi-yuan;ZHANG Guang-na;YU Jun-xiang;ZHENG Ya-qin;CHEN Xiu-hui;GUAN En-hua(Linyi Branch,Shandong Agricultural Broadcasting and Television School,Linyi 276000,Shandong,China;College of Agriculture and Forestry Science,Linyi University,Linyi 276005,Shandong,China;Fruit and Tea Technology Extension Service Center of Linyi City,Linyi 276000,Shandong,China）.)

机构地区：[1]山东省农业广播电视学校临沂市分校,山东临沂276000 [2]临沂大学农林科学学院,山东临沂276005 [3]临沂市果茶技术推广服务中心,山东临沂276000

出　　处：《生态学杂志》2018年第9期2657-2662,共6页Chinese Journal of Ecology

基　　金：囯家自然科学基金项目(41301320);山东省现代农业产业技术体系果品产业创新团队岗位专家建设专项(SDAIT-06-08)资助

摘　　要：为研究EM菌肥结合有机肥与秸秆覆草施用对桃园土壤理化性质及桃叶片光合特性的影响,在山东省临沂市一晚熟品种蜜桃桃园设置有机肥配施EM菌肥(EM-O)、秸秆配施EM菌肥(EM-S)和对照(CK)三个处理,测定不同处理土壤容重、孔隙度、有机质含量、有效养分含量,分析各处理间桃叶片叶绿素a、叶绿素b及总叶绿素含量的差异。结果表明:EM-O和EM-S处理显著提高了土壤有效氮、磷、钾及有机质含量,且EM-S处理显著增加土壤毛管孔隙度;EM-S处理显著提高桃叶片叶绿素a的含量;对土壤指标和植物光合特征指标间的多元逐步线性回归分析发现,桃叶片叶绿素a含量、总叶绿素含量与土壤有效钾含量呈显著正相关。综上,有机物料配施EM菌肥显著提高桃园土壤有效养分含量,尤其是10~20 cm土层养分含量;相对于有机质、有效氮和有效磷等养分,有效钾含量对桃叶片光合特性影响更大。To examine the effects of effective microorganisms（ EM） application with straw cover and organic fertilizer on soil physicochemical properties and peach photosynthetic characteristics,three treatments including EM-organic fertilizer（ EM-O）,EM-straw cover（ EM-S） and control（ CK） were employed in a late-maturing peach orchard in Linyi City,Shandong Province. Soil physicochemical properties（ soil bulk density,porosity,organic matter content,and available nutrient content） and chlorophyll content were measured. Results showed that EM-O and EM-S treatments significantly increased soil NH4＋-N,NO3--N,resin-P,available K and soil organic matter contents. Higher soil capillary porosity was found under EM-S treatment. EM-S treatment significantly increased chlorophyll a content in peach leaves. Results of stepwise multiple linear regression analysis between peach photosynthetic characteristics and soil properties showed that soil available K content was positively related with chlorophyll a content and total chlorophyll content. In conclusion,application of organic materials with EM substantially enhanced the contents of soil available nutrients,especially in 10-20 cm layer. Soil available K content had greater effects on chlorophyll content than soil organic matter,available N and available P contents.

关 键 词：覆草 有机肥 EM菌肥 提质增效 

分 类 号：S662.1[农业科学—果树学]