2010-03-172010-03-171986https://hdl.handle.net/10365/8084The article concerns both the attrition of soil nutrients and the replacement thereof. Soils inherently contain only a finite quantity of nutrients. When more nutrients are removed than are being replaced, soil eventually becomes depleted. Data from a study in this paper indicated that in North Dakota, plant nutrients are not being replaced in quantities large enough to replace all of the nutrients being removed by crops.North Dakota State UniversitySoil fertilityFertilizersPlant nutritionArticle