摘要
通过 1 994～ 1 997年对江苏泰兴市的银杏生长土壤与自然土壤性质进行比较 .显示出银杏生长和施肥管理对土壤上部 ( 0～ 4 0cm) pH值下降 ,而中、下部 ( 40～ 1 0 0cm) pH值上升 ,全土层有机质数量增多 .土壤氮素、磷素和钾素总量及有效性均不同程度增加 ,特别是磷和钾的增加更为明显 ,反映出银杏生长(根系和落叶 )及施用农家肥 (特别是灰肥 )导致土壤肥力向良性化方向发展的趋势 .
We studied ginkgo-cultivated soils in Taixing,Jiangsu.It was foung that the pH values in the soil horizon of 0 to 40 cm declined,while that in the soils of 40 to 100 cm increased.Besides,soil organic matter accumulation became larger,and the contents and availability of N,P,and K were also increased significantly.The results indicated that the soil fertility was improved due to cultivation of ginkgo.
出处
《土壤通报》
CAS
CSCD
北大核心
2000年第2期73-75,共3页
Chinese Journal of Soil Science
基金
浙江省农业科学院1994~ 1997年科研基金
