土壤2017，Vol.49Issue(5)：897-902,6.DOI:10.13758/j.cnki.tr.2017.05.007
重庆市柑橘园土壤养分现状研究
Study on Nutrient Status of Citrus Orchard Soil in Chongqing
摘要
Abstract
Top soil (0—30 cm) samples were collected from 104 citrus orchards in Chongqing, and pH, SOM content and available nutrient contents were measured. The results showed that, for citrus growth, pH values of 90.5% samples were suitable, SOM contents of 87.5% samples were low, and the deficiency rates of available N and P were 77.9% and 55.8%, respectively, the deficiency rates of available S, Ca, Mg, B, Mn, Cu, Fe and Zn were 24.0%, 13.5%, 44.2%, 92.4%, 35.6%, 45.2%, 41.3% and 72.1%, respectively. Meanwhile 54.8%, 6.7%, 21.2%, 16.4% and 4.8% of samples were excessive in available Ca, Mg, Fe, Mn and Cu contents, respectively. Except soil pH and available B, SOM and other nutrient contents of agricultural soil were higher than those of background soil in most citrus orchards. Therefore, more B and Zn fertilizers but less fungicide containing microelements should be used in the citrus orchards.关键词
重庆/柑橘园/土壤pH/有机质/有效养分Key words
Chongqing/Citrus orchard/Soil pH/SOM/Available nutrients分类
农业科技引用本文复制引用
苏婷婷,周鑫斌,徐墨赤,吴桃红,高阿祥,石孝均..重庆市柑橘园土壤养分现状研究[J].土壤,2017,49(5):897-902,6.基金项目
国家重点研发计划项目(2017YFD0200200/2017YFD0200208)和国家自然科学基金项目(31372141、31672238)资助. （2017YFD0200200/2017YFD0200208）
