Estimate crop yield using yield components: plant population, grains/ear, and test weight (1000-grain weight).
Estimate crop yield before harvest using yield components: plants per hectare, grains per ear/head, and 1000-grain weight. Get yield in kg/ha, tons/ha, bushels/acre, and total production. Works for corn, wheat, rice, and soybean. Essential for marketing, storage planning, and harvest logistics.
You looked at your corn field in August and thought "this looks like a 200-bushel crop." At harvest, you got 145 bushels. The plants looked great, but ears had only 350 kernels instead of the 500 you assumed — hot weather during pollination reduced kernel set. A 5-minute yield estimate in late August would have told you 150 bushels, and you could have arranged less storage and sold forward at the August price premium instead of taking the harvest-time price dip.
Enter the number of plants per hectare (or measure and calculate from spacing), average grains per head or ear, and thousand-grain weight in grams. Click calculate to see estimated yield in kilograms and tons per hectare.
The yield estimator helps you predict crop yield before harvest based on plant density, grains per head/ear, and thousand-grain weight. This is useful for planning harvest logistics, storage, and marketing. Yield estimation also helps identify problem areas in the field.
A: Yield estimates from plant counts and grain counts are typically within 10-15% of actual yield. Accuracy improves with more sampling points (take at least 5-10 representative samples across the field). Weather events after estimation (lodging, disease, drought) can reduce actual yield.
A: Select representative ears from multiple plants. Count grains in the middle rows of the ear, then multiply by the number of rows. For wheat, count grains in 5 representative heads and average. For corn, count kernels in 3 representative ears.
A: TGW varies by crop: wheat 35-55g, barley 35-50g, corn 250-400g, rice 20-30g, soybeans 150-250g. Higher TGW generally indicates better grain filling and higher yield potential.