2000 Projects
Project: 172-99
Title: Effect of Tillage and Timing on Legume N Mineralization and N Credit to Small Grain Principle Invstigator: K. A. Kelling / UW–Madison, Soil Science
Objective: To determine if sufficient N is available to winter wheat from alfalfa if alfalfa is harvested around the 1st of Sept. and wheat planted around the 15th of Sept; determine if the tillage system influences N availability; determine if a small amount of fall N will be adequate until N Mineralization occurs, but not so much that wheat lodges.
Funding Level: $9,700, $9,800, $9,900
Duration: 3 years
Project: 173-99
Title: Characterization of Nitrogen Uptake Efficiency of New and Commercial Apple Rootstocks and Scions
Principle Investigator: T. R. Roper / UW–Madison, Horticulture
Objective: To determine if rootstocks or scions have a greater effect on nitrogen efficiency in apple; determine if different rootstocks or different scions have a differential effect on nitrogen uptake efficiency.
Funding Level: $4,000
Duration: 1 year
Project: 175-99
Title: Nitrogen Application Effects on Residue Decomposition and No-till Corn Yields
Principle Investigator: L.G. Bundy / UW–Madison, Soil Science
Objective: To determine the influence of pre-season N fertilization at low rates (30 lb N/acre) on corn residue decomposition in no-till corn production; monitor the effects of pre-season N treatments and residue chopping on quantity, carbon and nitrogen composition, and soil temperature.
Funding Level: $9,400, $9,700, $10,000
Duration: 3 years
Project: 177-99
Title: Phosphorus Losses in Runoff from Wisconsin Soils
Principle Investigator: L.G. Bundy / UW–Madison, Soil Science
Objective: To determine the relationships between P soil test values from several methods and soluble P concentrations in runoff for three major soil groups in Wisconsin; evaluate P test methods for their ability to predict soluble P concentrations in runoff; identify soil P test threshold values for three major land resource areas (MLRA’s) in WI.
Funding Level: $8,200, $8,320, $8,650
Duration: 3 years
Project: 178-99
Title: Using Airborne Remote Sensing to Evaluate Nutrient Stress and Crop Performance in Large Crop Production Fields
Principle Investigator: R.T. Schuler / UW–Madison, Biological Systems Eng.
Objective: To determine the relationships between plant tissue nutrient concentrations and remotely sensed aerial digital imagery, between soil nutrient concentrations and remotely sensed aerial digital imagery, to quantify the percent of corn field under nutrient stress, compare nutrient crop stress to performance over the growing season.
Funding Level: $7,800, $7,800, $7,800
Duration: 1 year (actual) 3 years (proposed)
Project: 180-99
Title: Evaluation of Soil Test Levels in Grid-sampled Fields Treated with Variable-rate Fertilizer Applications
Principle Investigator: R.P. Wolkowski / UW–Madison, Soil Science
Objective: To evaluate the effectiveness of variable-rate fertilization for adjusting soil test levels within fields; combine estimated crop nutrient removal for selected fields with soil test and fertilization records to develop a nutrient budget; develop recommendations for the resampling of previously grid sampled fields.
Funding Level: $6,325
Duration: 1 year
Project: 183-99
Title: Evaluating a Standard Field Method for Measuring Nitrogen Mineralization
Principle Investigator: J.M. Norman / UW–Madison, Soil Science
Objective: To compare the standard in-situ-soil-core/exchange-resin technique to a new method that replaces the resin bag with a variable-tension micro-lysimeter that will simulate natural drainage conditions in 3 agroecosystems.
Funding Level: $8,875
Duration: 1 year
Project: 184-99
Title: Interaction of Soil pH and Rate of Topdressed K on Alfalfa Forage Mineral Levels, Yield and Quality
Principle Investigator: K.A. Kelling and J.B. Peters / UW–Madison, Soil Science and UW Soil and Forage Lab, Marshfield
Objective: To evaluate the effects of several K2O rates on alfalfa tissue mineral balance; evaluate the effects of lime source; evaluate the estimation of tissue mineral levels by NIR in comparison to measured ICP values.
Funding Level: $10,416, $10,500, $11,000
Duration: 3 years
Project: 185-99
Title: Investigations into Improved N Use Efficiency of Potatoes
Principle Investigator: K.A. Kelling / UW–Madison, Soil Science
Objective: Study ammonium sulfate and fumigation in a variety of ways.