摘要
以福建省6个县14个不同水稻田土壤为材料,通过常规方法测定其养分状况与微生物数量,比较冷浸田与非冷浸田土壤特征的差异。结果表明:(1)冷浸田与非冷浸田相比,有机质含量、有效P含量、0～20cm土层真菌数量差异均达显著水平,冷浸田有机质含量较高,有效P含量和0～20cm土层真菌数量较低。(2)冷浸田土壤中细菌、真菌和放线菌三者之间无显著相关性,而非冷浸田土壤三者间均呈明显的正相关。(3)土壤真菌与土壤有机质呈显著负相关,与有效P呈显著正相关;放线菌与有效P呈显著正相关;土壤真菌、放线菌数量随着土层的加深显著减少;与细菌相比,土壤真菌和放线菌更易受到土壤理化因子的影响。
The microorganism population and nutrient contents of 14 soil samle collected from different paddy fields in 6 counties of Fujian Province were examined based on classical methods.The differences of fundamental natures between cold-waterlogged paddy soil（CWPS） distinguished and non-cold-waterlogged paddy soil（NCWPS） were also investigated.The results showed that（1） significant differences in some soil properties were detected between CWPS and NCWPS,including organic matter（OM） content,available P（AP） content and fungus number in the 0-20 cm soil layer.Compared with NCWPS,CWPS had more OM content,less AP content and fungus number in the 0-20 cm soil layer;（2） there are significant and positive correlations between bacterium,fungus and antinomycete number in NCWPS,but not in CWPS;（3） fungus number were negatively correlated with organic matter content and positively correlated with available P content,and antinomycete number were positively correlated with available P content.The number of fungus and antinomycete in soil significantly decreased with increase of soil depth.Compared with bacterium,fungus and antinomycete were easily influenced by soil physicochemical factors.
出处
《福建农业学报》
CAS
2012年第3期278-282,共5页
Fujian Journal of Agricultural Sciences
基金
公益性行业(农业)科研专项(201003059)
福建省自然科学基金项目(2011J05058)
福建农业科学院博士科研启动基金(2010BS-6)
关键词
土壤
冷浸田
有机质
有效磷
微生物
soil
cold-waterlogged paddy field
organic matter
available P
microorganisms
