CSES 5023/6026 Nutrient Management
ABOUT THE COURSE:
Students will learn advanced concepts of soil fertility, fertilizer use and plant response to fertilizers.
In this course students will learn about:
- Cation exchange capacity – in depth. Methods for measurement, effects on soil fertility and crop response. Base saturation. The relationship between base saturation and crop yield. Anion exchange.
- Nutrient up take by plants. Ion exchange. Root versus foliar.
- Liming and pH. Buffering. The role of aluminum. Lime quality – calculations.
- Soil pH and effects on nutrient availability.
- Liming materials. Snake-oils in the lime industry, such as liquid lime. Materials for lowering pH.
- Nitrogen – the N cycle
- Phosphorus and start of Potassium. Potassium and clay mineralogy.
- Calcium, Magnesium, Sulfur. Micronutrients.
- Fertilizer sources, placement and rates.
- Fertilizer calculations and environmental effects of fertilizers.
- Leaching, run-off, state regulations about fertilizer use.
- Soil testing and the role of soil testing in fertilizer recommendations. Calibration curves and soil tests.
- Legumes. Green manures. Cover crops. Free living N fixing organisms. Yet more snake oils.
Soil Fertility and Fertilizers. Havlin et al. 8th edition. It is a really expensive text and thus is not required. It is an excellent reference, however, and if you are considering a career in this area you should consider purchase of this text.