长期定位施肥对无石灰性潮土理化性质的影响  

Effects of Long-term Located Fertilization on the Physiochemical Properties of Non-calcareous Alluvial Soil

作　　者：赵秀芬[1] 李俊良[1] 

机构地区：[1]青岛农业大学资源与环境学院,山东青岛266109

出　　处：《安徽农业科学》2009年第21期10088-10089,10122,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(30771257)

摘　　要：[目的]为改善土壤理化性质和促进农业可持续发展提供理论依据。[方法]通过田间试验研究长期定位不同施肥对无石灰性潮土理化性质的影响。[结果]单施有机肥处理的土壤含水量最高,CK的土壤含水量最低。施用有机肥处理的土壤容重较小,CK和无机肥处理的土壤容重较大。施用有机肥处理的土壤孔隙度显著高于不施有机肥处理和CK。施用有机肥、化肥处理和CK的土壤有机质含量分别约为原始土样的7.5、2.8和2.3倍。施用有机肥处理的土壤pH值提高了0.62,施用无机肥处理的土壤pH值降低。长期定位不同施肥对土壤速效养分氮磷钾含量的影响为:有机—无机肥料配施>单施大量有机肥>无机肥配施>单施氮肥>不施肥。[结论]有机—无机肥料配施能有效改善无石灰性潮土的理化性质。[ Objective ] The purpose of the research was to supply theoretical basis for improving the physiochemical properties of soil and promoting agricultural sustainable development. [ Method ] The effects of applying different fertilizers in long-term located fertilization on the physiochcmical properties of non-calcareous alluvial soil were researched through field experiment. [ Result ] The soil water content in the treatment with organic fertilizer only was highest and that in CK was lowest. The soil bull density in the treatment with organic fertilizer was smaller and that in CK and the treatment with inorganic fertilizer were bigger. The soil porosity in the treatment with organic fertilizer was significantly higher than that in the treatment without organic fertilizer and CK. The soil organic matter contents in the treatments with organic fertilizer, chemical fertilizer and CK were about 7.5, 2.8 and 2.3 times of that in the original soil samples resp. The soil pH value in the treat- ment with organic fertilizer was enhanced by 0.62 and that in the treatment with inorganic fertilizer was decreased. The effects of applying different fertilizers in long-term located fertilization on the contents of soil available nutrients nitrogen, phosphorous and potassium were： combined application of organic and inorganic fertilizers 〉 applying enormous organic fertilizer individually 〉 combined application of inorganic fertilizers 〉 applying nitrogen fertilizer individually 〉 non-applying fertilizer. [ Conclusion] The combined application of organic and inorganic fertilizers could improve the physiochemical properties of non-calcareous alluvial soil effectively.

关 键 词：长期定位施肥 无石灰性潮土 理化性质 

分 类 号：S147.2[农业科学—肥料学]