 | Better Farming Series 10 - The Farm Business Survey (FAO - INADES, 1976, 38 p.) |
 |  | Part 2 - The farm business survey |
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How to reckon the yield per hectare
To find out if the harvest has been good, you often need to reckon how many kilogrammes you would have harvested if you had a field of one hectare.
When you have worked out this Figure, you have reckoned the yield per hectare. Example:
I have a field of groundnuts that is 54 metres long and 22 metres wide. The area is: 54 m x 22 m = 1188 m². I harvested 94 kg of groundnuts from this field.
What is the yield per hectare?
To work this out, I use what is called the rule of three, thus:
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From an area of 1 188 m² I harvested |
94 kg |
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For 1 m² I would have harvested |
94 kg/1188 |
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For 1 ha (or 10000) m² I would have harvested |
94 x 10000/1188= 791 kg |
Another example:
I have a field of maize which is 165 metres long and 74 metres
wide.
Its area is 165m x 74m= 12210 m².
I harvested 924 kg of maize
on this field.
What is the yield per hectare?
I use the rule of three:
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On an area of 12 210 m² I harvested |
924 kg |
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On 1 m² / would have harvested |
924/12210 |
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On 10 000 m² for 1 ha) I would have harvested |
924 x 10000/12210 = 756.7 kg |
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