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# Corn Grain Yield Estimator with Moisture Correction

KurtHeckman.Corn Grain Yield Estimator with Moisture Correction

The **Corn Yield** formula estimates the amount of corn (maise) produced based on the size of the area planted and a sample of corn. The result is the approximate number of bushels of corn (yield) for the field.

**INSTRUCTIONS:** Enter the following information from your 1000th acre sample:

- (
**E**) The number of ears of corn in your 1000^{th}acre sample. - (
**KPE**) The average number of kernels per ear in your sample - (
**S**) The size of kernels (see Kernel Size Guide below) - (
**CMC**) The corn moisture correction factor (see Corn Moisture Correction below) - (
**A**) The number of acres of corn

**Estimated Corn Yield:** This calculator will return an estimate of the bushels of dried (15.5%) corn that your land may yield. This function is part of the Corn Yield Estimation Calculator.

Note: the rounded ends of the head are not considered since the combine will often not collect those kernels.

#### Sample Size

This calculator uses a standard sample size for corn yield, the 1,000^{th} of an acre. This makes the math easy and is a reasonable amount to measure. To compute the length of a thousandth (1/1000^{th}) acre row,

- Measure the distance between your rows of corn and CLICK HERE. This will tell you how far down the row will constitute 1/1,000th of an acre.
- Then walk that length of the row counting the heads of corn and pick a reasonable sample of the ears, at least three that look pretty average to you.
- Then shuck the corn and count the number of kernels of corn and compute the average (CLICK HERE).

You now have your sample, and there are only few more steps.* Kernel Sizes Guide - Ruler is in inches. *

#### Kernel Size Guide

This formula uses the default of average sized kernels of corn in a bushel. The ratios are as follows:

**small**- small kernels require 120,000 kernels in a bushel**medium**- medium (average) sized kernels require 90,000 kernels in a bushel.**large**- large kernels only require 80,000 kernels for a bushel.

#### Corn Moisture Correction

This formula uses a Corn Moisture Correction. This takes into account that corn will shrink in volume as it dries. A default of .89 is provided. This is the approximate correction for corn that is harvested at 25% moisture and dried to the commercial level of 15.5% moisture.

Corn is fully mature at about 35% moisture. However, most farmers will allow drying to occur in the field to at least 28%, perhaps as low as 20%. If you do not test your moisture level, you're answer will be off, but the default of 0.89 is a good start under normal conditions.

**Corn Grain Yield Estimator with Moisture Correction**, references 3 equations/constants.

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**Corn Grain Yield Estimator with Moisture Correction**, is used in 1 calculator.

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**Corn Grain Yield Estimator with Moisture Correction**, is listed in 1 Collection.