Fertility was defined at the beginning of this study as the functioning of the biological system which, within a prescribed area at a given cost and with acceptable risk, ensures the transformation of solar energy into animal and vegetable biomass to supply the needs of the population.
Weitere Kapitel dieses Buchs durch Wischen aufrufen
- Evolution of Soil Fertility in the Savannah Area to the South of the Sahara
Professor Dr. Christian J. M. G. Pieri
- Springer Berlin Heidelberg
- Chapter 32