Start / Crops and productivity / Crop yield
Measure the grain fallen on 1 m² right after the combine and see how much that represents in bags and reais per hectare.
Pre-sizing and estimating tool: the results do not replace a design, calculation, or report signed by a qualified professional, nor verification against the applicable standards.
Loss per hectare in kg, compared with the tolerance you entered.
Reais lost per hectare for each possible measure of fallen grain; the dot is your measurement.
Drag the controls to simulate data different from what you entered (from 30% less to 30% more) and watch the result change instantly.
Loss in kilos, bags and reais per hectare for different amounts of fallen grain per square meter, with the bag price you entered.
The calculation done in steps, with the values you entered.
The calculation memo gathers this page's inputs, results, equations, assumptions, and references, with fields for project, responsible person, and review. The full report also includes the charts and interpretations, in color. In the print window, choose Save as PDF.
Average of 4 g/m² of fallen grain, soybean at R$ 120/bag, yield of 70 bags/ha.
Loss = 4 × 10 = 40 kg/ha, or 40 ÷ 60 = 0.67 bags/ha. In reais: 0.67 × 120 = R$ 80/ha, about 1% of production.
Throw a 1 m² frame on the ground right behind the combine, collect all the grains and shattered pods inside it, and weigh the grains. Repeat at several points.
Because 1 g/m² equals 10 kg/ha. This conversion is direct and avoids unit errors.
Depends on the crop and the region. The editable tolerance in the calculator is only a starting point; confirm the reference value with your technical adviser.
Review the harvesting speed, cylinder speed, concave opening and cutter bar height, and measure again after the adjustment.
Important notice: the Agrocalcs tools make estimates and preliminary sizing based on the data entered and on published engineering methods. They do not replace a design, a calculation report or a report signed by a qualified professional (CREA/ART), nor verification against the applicable technical standards and legislation, such as the Regulatory Standards of the Ministry of Labor. Material and fuel properties vary: check with the manufacturer or with analyses of your process before deciding. By using the site, you agree to the Terms of Use.
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