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- Powell, J Mark
- Journal of soil and water conservation 2014 v.9 no.11 pp. 55-64
- ammonia; animal manure management; barns; biomass; body weight; case studies; cattle production; crop yield; cropland; dairy animals; dairy cattle; emissions; excretion; feces; feeds; fertilizers; food grains; forage; forage production; heifers; milk production; millets; nitrous oxide; nutrient use efficiency; people; production technology; recycling; sheep; soil conservation; Niger; Wisconsin
- ... In most parts of Sub-Saharan Africa fertilizers and feeds are costly, not readily available and used sparingly in agricultural production. In many parts of Western Europe, North America, and Oceania fertilizers and feeds are relatively inexpensive, readily available and used abundantly to maximize profitable agricultural production. A case study, dairy systems approach was used to illustrate how d ...