METHOD FOR ESTIMATING THE SOIL CAPACITY OF ATMOSPHERIC DINITROGEN FIXATION

被引：0

作者：

Stefanic, Gheorghe ^{[1
]}

Oprea, Georgeta ^{[1
]}

机构：

[1] Natl Agr Res & Dev Inst Fundulea, Fundulea 915200, Calarasi County, Romania

来源：

ROMANIAN AGRICULTURAL RESEARCH | 2010年 / 27卷

关键词：

unsymbiotic fixation of atmospheric dinitrogen; method for quantitative estimation; interdependence fixation - nitrification of nitrogen;

D O I：

暂无

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Importance of nitrogen in the nutrition of all living on earth, made the scientists to study the extent of the atmospheric nitrogen fixation by unsymbiotic microflora in soil. The methods of quantitative estimation, used in the 20(th) century, have not been entirely satisfactory, because they overlooked the nitrification processes, testing fixed nitrogen by the Kjeldahl method only. This paper suggests a more complete method for determining the natural contribution of atmospheric nitrogen fixation to the soil. This method takes into account both the N-organic and N-NH(4)(+) as quantified by the Kjeldahl method and the nitric N produced by mineralization of the N compounds resulting from dinitrogen fixation during the soil incubation period.

引用

页码：89 / 93

页数：5