Tracking Nutrient Applications
Forms for recording nutrient applications and worksheets and spreadsheets for calculating how much nitrogen, phosphorus and potassium was applied.
Aptrak Spreadsheet
Download the ApTrack N application management spreadsheet and instructions
Articles and Publications
information on choosing a flow meter, lagoons, nitrogen application, groundwater quality, and forage crop studies.
Growing Degree Units
Corn Growing Degree Unit Calculators
Reference Charts
conversion formulas, estimating soil moisture, mineralization table, corn silage nitrogen uptake, and charts to calculate GPM needed to achieve target nitrogen application rates.
Worksheets
blank irrigation data sheets, pond drop calculation worksheets, N application from GPM calculations, and manure nutrient calculation problem sets.
Spreadsheets
downloadable spreadsheets for nitrogen application, electrical conductivity, pond drop, and the NPK Spreadsheet 4.5.2
Quick Test
ordering information and data sheet