摘要
通过12年的肥料长期定位试验,观察了施用不同量有机肥、氮肥以及二者配合施用对土壤微形态的影响。结果表明:施肥对土壤颜色、粗骨颗粒大小没有影响,而对土壤基质比略有影响,对土壤基底胶结形式,孔隙发育状况、结构体和新鲜植物残体量均有明显影响,以单施高、低量有机肥以及与高、低量氮肥配合的处理为显著。
With the long-period fertilizer located ecperiment of 9 different treatments of applying organic manure,nitrogen fertilizer and the two combined respectively for 12 years,the soil micromorphologica observation was carried out.The results were as follows:Application of fertilizers had no influence on the soil colour and soil granule,but had little influence on the soil substrate and the substrate ratio and had significant iufluence on the soil substrate cemented form,soil porosity,soil structure and fresh plant residue.The results were much morw significant in the treatments of applying organic manure only with high or low amounts and those combined with nitrogen fertilizers with high or low amounts.
出处
《莱阳农学院学报》
1990年第3期186-191,共6页
Journal of Laiyang Agricultural College
基金
国家科技资助项目
关键词
施肥
土壤微形态
fertilizer application
soil micromorphology
soil porosity
soil structure
