Effectiveness of Split Nitrogen Applications in the Midwestern U.S.
Document Type
Article
Publication Date
2018
Abstract
- Nitrogen (N) fertilizers are used to supplement the soil’s natural N supply to increase corn grain yield and maximize economic profit.
- However, the use of N fertilizer has been associated with increased nitrate levels of ground and surface waters. High nitrate levels can cause negative environmental, human, and animal health effects.
- Splitting N fertilizer across multiple application timings during the growing season is a suggested method to lower the risk of N loss by applying N fertilizer in amounts and at timings that more closely match corn N uptake.
- The objectives of this study were:
- Determine the effects of split N application on soil nitrate (NO3-N) at VT, N uptake at maturity, and corn grain yield.
- Classify environmental conditions in which split N application is likely to increase corn yield.
- Compare the effect of split N application when a low or high N rate is applied near planting on soil N concentrations, corn N uptake, and corn yield.
Publication Title
Pioneer Company Website
Recommended Citation
Clark, Jason and Fernandez, Fabian, "Effectiveness of Split Nitrogen Applications in the Midwestern U.S." (2018). Agronomy, Horticulture and Plant Science Faculty Publications. 304.
https://openprairie.sdstate.edu/plant_faculty_pubs/304
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