Small Grains WSU Extension
Straw Removal Calculator
* denotes required input fields
Estimate Grain and Straw Yield From Available Moisture |   | Summary | |||||
Available Water (in) | * |   | Net $/A | ||||
Variety | * |   | CCE removed per acre | ||||
Straw Harvest (%) | * |   | SOC status | ||||
Grain Yield (bu/A) |   |   |   | ||||
Straw Produced (Ton/A) |   |   |   | ||||
Straw Yield (Ton/A) |   |   |   | ||||
Estimate Nutrient Removal | |||||||
  | nutrient concentration (lb/lb) | nutrient removed (lb/acre) | price nutrient ($/lb) | nutrient removal cost ($/acre) | |||
N Removal | * | * | |||||
P2O5 Removal | * | * | |||||
S Removal | * | * | |||||
Zn Removal | * | * | |||||
B Removal | * | * | |||||
  |   |   | Total nutrient removal cost ($/acre) | ||||
Base Cation Removal | |||||||
  | nutrient concentration (lb/lb) | nutrient removed (lb/acre) | CCE of base cations removed (lb/acre) | liming material | CCE of liming material | price liming material ($/ton) | base cation removal cost ($/acre) |
K2O Removal | * | * | * | ||||
Ca Removal | * |   |   |   | $10 included for application cost per acre (WSU extension) | ||
Mg Removal | * |   |   |   |   | ||
  |   | Total CCE of Base Cations Removed |   |   |   |   | |
Soil Organic Carbon Removal | |||||||
Cropping System | * | ||||||
C Concentration | * | ||||||
C Removed with Straw (lb/A) | |||||||
C Not Removed (lb/A) | |||||||
SOC Status | |||||||
Partial Budget | |||||||
Straw Price ($/ton) | * | ||||||
Straw Revenue ($/A) | |||||||
Operating Costs ($/A) | * | ||||||
Reduced Revenue ($/A) | |||||||
Net (profit/loss) ($/A) | |||||||
Contact Isaac Madsen (isaac_madsen@wsu.edu) 360-448-9081 with questions Schillinger, W. F., Schofstoll, S. E., & Alldredge, J. R. (n.d.). Available water and wheat grain yield relations in a Mediterranean climate. https://doi.org/10.1016/j.fcr.2008.06.008 McClellan, R.C., McCool, D.K., & Rickman, R. W., 2012 Grain Yield and Biomass Relationship for Crops in the Inland Pacific Northwest Unitested States. J. of Soil and Water Conservation 67:42-50 Lafond, Stumborg, M., Lemke, R., May, W.E., Holzapfel, C.B., and Campbell, C.A., 2009, Quantifying Straw Removal through Baling and Measuring the the Longer Term Effects on Soil Quality and Wheat Production https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2134/agronj2008.0118x El-Nashaar, H. M., Banowetz, G. M., Peterson, C. J., & Griffith, S. M. (2010). Genetic variability of elemental concentration in winter wheat straw. Energy and Fuels, 24(3), 2020–2027. https://doi.org/10.1021/ef901181h Johnson, J. M. F., Allmaras, R. R., & Reicosky, D. C. (2006). Estimating source carbon from crop residues, roots and rhizodeposits using the national grain-yield database. Agron J. 98:622-636 Tarkalson, D.D., Brown, B., Kok, H., & Bjorneberg, D.L. (2009). Impact of removing straw from wheat and barley fields: a literature review. Better Crops Vol. 3