Frequently Asked Questions
What is crop yield?
Crop yield is the harvested production per unit area of land. It is expressed in tonnes/hectare (t/ha), kg/ha, bushels/acre, or quintals/ha and is used to measure agricultural productivity.
How do I convert tonnes/ha to bushels/acre?
The conversion depends on the crop because bushels have different weights for each grain. For wheat: 1 t/ha ≈ 14.87 bu/acre (60 lb/bu). For corn: 1 t/ha ≈ 15.93 bu/acre (56 lb/bu). For soybeans: 1 t/ha ≈ 14.87 bu/acre (60 lb/bu).
What is a quintal?
A quintal equals 100 kg. It is the most common yield unit used in South Asian and European agricultural reporting. 1 quintal/ha = 100 kg/ha.
What are average world grain yields?
Global average wheat yield is about 3.4 t/ha. Rice averages 4.7 t/ha. Maize averages 5.7 t/ha. High-yielding varieties and intensive management can achieve 8–12 t/ha for these crops.
What is grain vs. straw yield?
Grain yield refers only to the harvestable grain. The harvest index (HI) is grain yield divided by total above-ground biomass. Modern varieties typically have HI of 0.45–0.55. At an HI of 0.5, a 5 t/ha grain yield implies 10 t/ha total biomass.