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A system for quantitative evaluation of soil fertility and the response to fertilizers.
A system for quantitative evaluation of soil fertility and the response to fertilizers.
1989
B.H. Janssen
F. C. T. Guiking
D. Van Der Eijk
E.M.A. Smaling
J. Wolf
H. Van Reuler
Keywords:
Soil science
Tropics
Soil fertility
Environmental science
Agronomy
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