SHORT COMMUNICATION: Soil microbial biomass C, N mineralization, and N uptake by corn in dairy cattle slurry- and urea-amended soils
SHORT COMMUNICATION: Soil microbial biomass C, N mineralization, and N uptake by corn in dairy cattle slurry- and urea-amended soils
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DOI：
10.4141/cjss96-058
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发表时间：
1996-11
影响因子：
1.7
通讯作者：
J. Paul;E. Beauchamp
中科院分区：
文献类型：
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作者：
J. Paul;E. Beauchamp
春季在高肥力和低肥力土壤上施用奶牛泥浆（300 kg总N ha−1），与对照土壤或接受100 kg N ha−1尿素的土壤相比，在生长季节期间产生更高的微生物生物量C。微生物生物量C也显着较高的高肥力网站，并反映在更大的氮矿化和氮吸收玉米。有没有更大的净氮矿化的施肥土壤中比在控制或施肥土壤中预期作为一个结果，更高的微生物生物量C和显着的有机N的贡献，从粪肥。关键词：畜禽粪便，氮矿化，玉米，粮食产量，土壤肥力
A spring application of dairy cattle slurry (300 kg total N ha−1) on high- and low-fertility sites resulted in higher microbial biomass C during the growing season than on a control soil or a soil receiving 100 kg N ha−1 as urea. Microbial biomass C was also significantly higher on the high-fertility site and was reflected in greater N mineralization and N uptake by corn. There was no greater net N mineralization in the manured soil than in the control or fertilized soil as would be expected as a result of higher microbial biomass C and significant organic N contribution from the manure. Key words: Animal manure, nitrogen mineralization, corn, grain yields, soil fertility