银杏生长的土壤肥力变化研究  

Changes of soil fertility upon ginkgo cultivation

作　　者：李庆康[1] 李群 袁子祥 褚生华 朱卫红 孙玉华[3] 

机构地区：[1]江苏省农业科学院土肥所,江苏南京210014 [2]泰兴市林业站,泰兴225400 [3]南京农业大学资环学院,南京210095

出　　处：《土壤通报》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

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.

关 键 词：银杏 土壤肥力 产量 施肥 生长发育 

分 类 号：S664.306.2[农业科学—果树学] S664.306.1[农业科学—园艺学]