干旱地区农业研究2017，Vol.35Issue(4)：39-44,6.DOI:10.7606/j.issn.1000-7601.2017.04.07
甜樱桃重茬土壤有效养分及酶活性的变化
The change of soil available nutrients and enzyme activity in sweet cherry replanted soil
摘要
Abstract
To investigate the change of soil available nutrients and enzyme activity in sweet cherry replanted soil,soil mineral elements content in (such like total N,nitrate N,ammonia N,available P and available K) and enzyme activity of (including urease,catalase,alkaline phosphatase and invertase) soil samples from NP (the plot never planted sweet cherry),FP (the plot first planted sweet cherry) and RP (the plot replanted sweet cherry)were measured.The resuits indicated that compared with FP,the content of nitrate N,available P,available K,available B,available Zn,available Fe,available Cu and exchangeable Mg significantly decreased,and the activities of urease and alkaline phosphatase also obviously decreased in RP;With soil depth increasing,the content of mineral elements (except for the content of available Mn,available Fe and exchangeable Ca) and soil enzyme activity including urease and alkaline phosphatase and invertase from in RP significantly decreased,while the exchangeable Ca content increased;Ca/P,Ca/K,Ca/Zn,Zn/Mn and Zn/Mg were imbalanced in RP.Additionally,correhtion analysis showed that the cultivating times was positively correlated with the content of available Mn;Urease and alkaline phosphatase were positively correlated with available K (r =0.848 and 0.880),available P(r =0.856 and 0.932),available B(r =0.744 and 0.761),available Zn(r =0.767 and 0.852) and Cu(r =0.788 and 0.852);Invertase was positively correhted with available K,P and Cu (0.626,0.71 and 0.656);urease,alkaline phosphatase and invertase were negatively correlated with the exchangeable Ca (0.784,0.866 and 0.854).In brief,soil available nutrient contents and enzyme activity significandy decreased by replanted sweet cherry seedlings,and the nutrient proportion was imbalanced.关键词
甜樱桃重茬土壤/土壤酶活性/土壤有效养分Key words
sweet cherry replanted soil/soil enzyme activity/soil available nutrients/correlation analysis分类
农业科技引用本文复制引用
司鹏,邵微,于会丽,杨晓静,乔宪生,高登涛,王志强..甜樱桃重茬土壤有效养分及酶活性的变化[J].干旱地区农业研究,2017,35(4):39-44,6.基金项目
中国农业科学院科技创新工程专项经费项目(CAAS-ASTIP-2016-ZFRI) （CAAS-ASTIP-2016-ZFRI）
