Research Applications
Organic amendments can serve as a low-cost source of nutrients for crop production and a conditioner that improves soil physical and chemical conditions. Studies have used PRS® Probes to determine the quantity and timing of nutrient release from manure and compost and the long-term impacts of repeated applications.
Examples
- Evaluating phosphorus loading from repeated manure applications to two Saskatchewan soils.
- Optimizing soil and plant responses to land-applied manure nutrients in the Great Plains of North America.
- Anionic resin-extractable phosphorus as an index of phosphorus availability in calcareous soils of Crete amended or not amended with pig manure compost.
- Effect of swine manure and urea on soil phosphorus supply to canola.
- Effects of beef cow winter feeding systems, pen manure and compost on soil nitrogen and phosphorous amounts and distribution, soil density, and crop biomass
- Greenhouse gas emissions and nutrient supply rates in soil amended with biofuel production by-products.
- Utilization of biosolids in production of bioenergy crops I: Impact of application rate on canola biomass, soil properties, and nutrient availability.
- Nitrogen availability in an organic potato crop following 3-year transition under contrasting farming systems.
- Nutrient supply from organic amendments applied to unvegetated soil, lettuce and orchardgrass.
- Evaluation of nitrogen supply rate measured by in situ placement of Plant Root Simulator® probes as a predictor of nitrogen supply from soil and organic amendments in potato crop.
- Integrated management of inorganic and organic nitrogen and efficiency in potato systems.