Yield Equations for Moisture

Standard corn yields equal 15.5 percent or 56 pounds per bushel moisture.

Flag this photo

Whether making cheese or planting corn, it is important to have an idea of how much product or crop will be produced. Yield equations provide a means for that calculation. One factor in an equation that computes yield is moisture. Use either a standard moisture number or calculate moisture. Either method provides the necessary information for yield equations.

Related Searches: Van Slyke Equation

If you need to calculate cheddar cheese production; use the Van Slyke equation. The equation calculates cheese yield by multiplying 0.93 times the percentage of fat in milk. That number is then added to the number obtained by taking the percentage of casein, or dairy protein, in milk and subtracting 0.1. Multiply 109 by the sum of those two numbers. The resulting number is divided by 100 minus the percentage of moisture in the cheese and the answer is the predicted yield.


The resulting yield from the Van Slyke equation is a number equal to kilograms of cheese per 100kg of milk. It can also be shown as a percentage. The equation uses 0.93 times the percentage of fat in milk based upon the assumption that 93 percent of the milk fat stays in the cheese. Use of 0.1 in the casein part of the equation compensates for a loss of some of the casein in the process. The number 109 represents an allowance for lactose, retention of whey protein and milk salts.

Corn Moisture

The greater the moisture in corn the more pounds you need to equal one bushel. The Ohio State University Extension provides a table entitled "Corn Moisture Corrections," which illustrates the point. According to the table, corn with 10 percent moisture requires 63.49 pounds of ear corn to equal one bushel. The figure for shell corn is 52.58 pounds. Increase the moisture to 15 percent and the figure rises to 67.89 pounds for ear corn and 55.67 pounds for shell corn to equal one bushel.

Soil Moisture

Moisture in soil affects yield equations for crops. Measure subsoil moisture with a soil moisture probe. The government of Saskatchewan provides yield equations for various crops that require a figure for water usage which includes subsoil moisture and predicted rainfall levels. The yield equation provides a good estimate as to crop production.

ReferencesUniversity of Wisconsin Agronomy Department; Methods For Calculating Corn Yield; Joe Lauer; Jan 2002Government of Saskatchewan: Measuring Stubble Subsoil Moisture To Determine Stored WaterOhio State University Extension: Useful Tables: Adjustments And Conversions On Corn And Soybean ParametersDairy Science: Van Slyke EquationPhoto Credit Jupiterimages/Photos.com/Getty ImagesRead Next:

Print this articleCommentsFollow eHowFollow

View the Original article

No comments:

Post a Comment