Proceedings
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| Filter results6 paper(s) found. |
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1. Effect of NBPT-Amended Urea and UAN on No-till Corn in Northern IllinoisField evaluations of the urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT) have been extensively conducted across the USA with encouraging results. Most response data collected to date has been with corn. In this report results from 7 'years of experiments at two southern Illinois locations (Belleville and Carbondale) are presented. NBPT addition to broadcast-placed urea, when evaluated across N rates and locations, gave no- till corn yield increases averaging 8.4 bulac in 13 experiments.... |
2. Nitrogen Placement in No-till CornPlacement of nitrogen (N) fartilizers on no-till corn was evaluated in various single and multiple N rate experiments at the Belleville and Carbondale Research Centers of Southern Illinois University from 1983 to 1993. In 15 experiments in which granular urea placement was compared, ear leaf N and grain yield were essentially the same whether urea was broadcast or concentrated in surface bands near corn rows. Only a 2 bu/ac average yield advantage was observed for banding versus broadcasting urea... |
3. Soil Electrical Conductivity Map Quality- Impact of Interpolation Search Neighborhood ParametersSpatial predictions of soil electrical conductivity (EC) measurements may be improved by adjusting the search neighborhood criteria. The objective of this study was to investigate how varying search parameters impacted the quality of soil EC maps. The three fields cl~osen for this study were from the Inner and Outer Blue Grass physiographic regions of Kentucky. Soil EC was measured by direct contact at all locations. The prediction datasets included EC measurements along transects that were separated... |
4. iPhone Apps: Corn Nitrogen Fertilizer Rate Calculator and Nitrogen Fertilizer Price Comparison CalculatorAs communications technology advances, there is a need for Extension to deliver information and decision- making tools that leverage these new technologies to engage existing and new clientele groups in new wa ys. Smart technologies allow ac cess to pertinent information on-the- go and out in the field, right when it's needed. ... |
5. Soil Mineral Nitrogen Response to Nitrogen Fertilizer Application in Corn Early Growth SeasonSoil Mineral Nitrogen (SMN) plays a crucial role for the growth and productivity of crops such as corn, this crop is very demanding of nitrogen (N) in early growth stages. Maintaining the highest amount of N in the form of ammonium (NH4+) or nitrate (NO3-) can be key to obtaining high yields. Substances such as nitrification inhibitors (NI) were created to avoid losses of N from the soil. This study was carried out in 8 site year locations across... P. Morinigo, D. Ruiz diaz |
6. Assessing the Impact of the 4R Nutrient Management on Nitrogen Use Efficiency in CornDetermining the best management practices for nitrogen (N) fertilizer application to corn is crucial to achieving the objectives of the 4 r's of nutrient stewardship. Although producers have a wide range of options regarding N fertilization, identifying the right rate, source, placement, and timing can significantly impact productivity and nitrogen use efficiency. Our objectives were to evaluate the agronomic efficiency (AE), and the corn grain yields as afected by different rates, sources,... D. Ruiz diaz, P. Morinigo |