Mathematical model of the relationship between nitrogen-fixation by black locust and soil conditions

The relationship between black locust ( Robinia pseudoacacia L.) nitrogen fixation capacity and soil physico-chemical properties can be expressed by a multi-variale regression equation. The optimal equation formed through a stepwise regression method indicated that acidity and available P were the m...

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Bibliographic Details
Published in:Soil biology & biochemistry 1991, Vol.23 (1), p.1-7
Main Authors: Liu, Guofan, Deng, Tingxiu
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
analysis
Biological and medical sciences
correlation
forest soils
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
mathematical models
multivariate analysis
nitrogen fixation
nodulation
physicochemical properties
regression analysis
Robinia pseudoacacia
Soil-plant relationships. Soil fertility
Soil-plant relationships. Soil fertility. Fertilization. Amendments
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Summary:The relationship between black locust ( Robinia pseudoacacia L.) nitrogen fixation capacity and soil physico-chemical properties can be expressed by a multi-variale regression equation. The optimal equation formed through a stepwise regression method indicated that acidity and available P were the main factors that affect N 2 fixation, next were CaCO 3 and available K. Interaction of available Mo with available P, available K and CO 2 respectively had a pronounced cooperative effect. The symbiont had a higher N 2-fixing capacity in neutral, low calcium and weak acidic soils.
ISSN:0038-0717
1879-3428
DOI:10.1016/0038-0717(91)90155-D