Research Projects
United States of America
IPNI-1991-USA-KS23Effect of Long-term Nitrogen, Phosphorus and Potassium Fertilization of Irrigated Corn and Grain SorghumNorth America
IPNI-2004-USA-GA26Loblolly Pine Stand Fertilization at Mid-rotation to Increase Small and Large Sawtimber VolumeNorth America
IPNI-2016-USA-AZ10Improving Nitrogen Fertilizer Management in Subsurface Drip-Irrigated CottonNorth America
IPNI-2013-USA-GM65Advancing Intensive Management of Corn Systems in Minnesota (Irrigated)
This project is focused on high-yield continuous corn systems - Irrigated.
North AmericaIPNI-2014-GBL-644R N Management Science Consensus to Modify Nitrous Oxide Estimation in the Field to Market Fieldprint CalculatorNorth American Programs
IPNI-2013-USA-ID13Measuring the Nutrient Accumulation Rates of High-Yielding Potatoes and Sugar BeetsNorth America
IPNI-2016-USA-UT10Measuring Potato Nutrient Accumulation Rates and Documenting Nutrient Deficiency SymptomsNorth America
IPNI-2013-USA-IA20Improving the Reliability of Soil Potassium Testing and RecommendationsNorth America
IPNI-2016-USA-KY13Do Critical Soil Phosphorus Concentrations Vary in Space and if so, Why?North America
IPNI-2015-USA-101Evaluation of Cotton Yield, Quality, and Plant Growth Response to Soil-Applied Potassium
The frequency and severity of potassium (K) deficiency symptoms in cotton have increased in some soi ...
North AmericaIPNI-2013-USA-GM51Advancing Intensive Management of Corn Systems in Minnesota (Rainfed)
This project is focused on high-yield continuous corn systems - Rainfed
North AmericaIPNI-2014-USA-4RN09Evaluating the 4R Nutrient Stewardship Concept and Certification Program in the Western Lake Erie BasinNorth America
IPNI-2012-USA-TN20Documenting Nutrient Deficiency and Accumulation Rate in Vegetables
Greenhouse hydroponic study to document nutrient deficiency symptoms in various annual and perennial ...
North America
IPNI-2017-USA-4RF01Nutri-Net: Coordinated Site Network for Studying the Impacts of 4R Nutrient Management on Crop Production and Nutrient LossNorth AmericaIPNI-2016-USA-MT19Pushing the limits of fertilizer N recovery in a semiarid climate with improved N management
A common goal of N fertility programs should be to provide for the highest recovery of applied ferti ...
North AmericaIPNI-2014-USA-4RN16Impacts of 4R Nitrogen Management on Crop Production and Nitrate-Nitrogen Loss in Tile DrainageNorth America
IPNI-2015-USA-4RN28Relationships of Nitrous Oxide Emissions to Fertilizer Nitrogen Recovery Efficiencies in Rain-fed Corn Systems: Research Foundation BuildingNorth America
IPNI-2014-USA-4RN25Supplemental Late-Vegetative Nitrogen Applications for High-Yield Corn: Agronomic, Economic and Environmental Implications with Modern Versus Older HybridsNorth America
IPNI-2014-GBL-62Breaking Soybean Yield Barriers: Integrating Crop Production Practices & Comprehensive Fertilization Strategies – a Cropping System ApproachThis project is studying the effects of different farming systems on soybean yield in major producti ...
Latin America - Southern Cone