1. What is the Corn Yield Calculator?
Definition: This calculator estimates the total corn yield and yield per acre based on a 1/1000 acre sample, considering the number of ears, kernels per ear, and kernel size.
Purpose: It helps farmers predict corn production before harvest and assess productivity per acre, aiding in planning for storage, marketing, and crop management.
2. How Does the Calculator Work?
The calculator uses the following equations:
- \( \text{Total Yield} = \text{Field Size} \times \left( \frac{\text{Kernels per Ear} \times \text{Ears} \times 1000}{\text{Kernels per Bushel}} \right) \)
- \( \text{Yield per Acre} = \frac{\text{Kernels per Ear} \times \text{Ears} \times 1000}{\text{Kernels per Bushel}} \)
Where:
- \( \text{Field Size} \): Size of the field (converted to acres: acres, hectares, sq ft, sq m);
- \( \text{Ears} \): Number of ears in a 1/1000 acre sample;
- \( \text{Kernels per Ear} \): Average number of kernels per ear (default 800);
- \( \text{Kernels per Bushel} \): Depends on kernel size (small: 120,000; medium: 90,000; large: 80,000);
- \( \text{Total Yield} \): Total corn yield, initially in bushels, convertible to metric tons, kg, or lb;
- \( \text{Yield per Acre} \): Corn yield per acre, in the same unit as total yield (bushels/acre, metric tons/acre, kg/acre, lb/acre).
Steps:
- Enter the field size and its unit (acres, hectares, sq ft, sq m).
- Enter the number of ears in a 1/1000 acre sample.
- Enter the average number of kernels per ear (default 800).
- Select the kernel size (small, medium, large).
- Convert field size to acres for calculation.
- Calculate yield per acre: \( \text{Yield per Acre} = \left( \frac{\text{Kernels per Ear} \times \text{Ears} \times 1000}{\text{Kernels per Bushel}} \right) \).
- Calculate total yield: \( \text{Total Yield} = \text{Field Size} \times \text{Yield per Acre} \).
- Convert both total yield and yield per acre to the selected unit (bushels, metric tons, kg, lb).
- Display results as numeric values, with the unit shown in the dropdown.
3. Importance of Corn Yield Calculation
Estimating corn yield is crucial for:
- Harvest Planning: Helps farmers prepare for storage and transportation needs based on total yield.
- Market Decisions: Allows for better pricing and sales strategies based on expected production.
- Crop Management: Provides insights into field productivity per acre, guiding future planting and management decisions.
4. Using the Calculator
Example 1 (Imperial Units, Medium Kernels): Estimate the corn yield for a field:
- Field Size: 100 acres;
- Number of Ears (1/1000 acre sample): 30;
- Kernels per Ear: 800;
- Kernel Size: Medium (90,000 kernels/bushel);
- Yield per Acre: \( \left( \frac{800 \times 30 \times 1000}{90000} \right) \);
- \( \text{Yield per Acre} = \frac{24000000}{90000} \approx 266.6667 \, \text{bushels/acre} \);
- Total Yield: \( 100 \times 266.6667 \approx 26666.6667 \, \text{bushels} \);
- Result: Total Corn Yield = 26666.6667, Yield per Acre = 266.6667 (unit: bushels).
Example 2 (Metric Units, Large Kernels): Estimate the corn yield for a field:
- Field Size: 40 hectares, convert to acres: \( 40 \times 2.47105 \approx 98.842 \, \text{acres} \);
- Number of Ears (1/1000 acre sample): 34;
- Kernels per Ear: 750;
- Kernel Size: Large (80,000 kernels/bushel);
- Yield per Acre: \( \left( \frac{750 \times 34 \times 1000}{80000} \right) \);
- \( \text{Yield per Acre} = \frac{25500000}{80000} = 318.75 \, \text{bushels/acre} \);
- Total Yield: \( 98.842 \times 318.75 \approx 31506.0375 \, \text{bushels} \);
- Convert to kg: Total Yield = \( 31506.0375 \times 25.4 \approx 800253.3525 \), Yield per Acre = \( 318.75 \times 25.4 \approx 8096.25 \);
- Result: Total Corn Yield = 800253.3525, Yield per Acre = 8096.2500 (unit: kg).
5. Frequently Asked Questions (FAQ)
Q: What is the difference between Total Yield and Yield per Acre?
A: Total Yield is the overall corn production for the entire field, while Yield per Acre is the productivity per acre, calculated as Total Yield divided by the field size in acres (or directly from the sample as shown in the formula).
Q: How many kernels are typically on an ear of corn?
A: A typical ear has around 800 kernels, though this can vary based on hybrid and growing conditions [Web ID: 0].
Q: How do I convert bushels to kilograms?
A: Multiply the number of bushels by 25.4, as one bushel of corn weighs approximately 25.4 kg (56 lb) [Web ID: 0].
Home
Back
