Strong Small-Scale Farming Systems
2C.2 Productivity Gap
Calculation Based on Available Data
This indicator measures the difference between the actual and potential yield of the primary or most significant crop(s) in a given country. We leave it up to the respondent to determine which crops are included.
For this indicator, you will need two datasets for a minimum of one crop.
1: Actual yield (Ya) of crop per unit of measurement
2: Potential yield (Yp) of crop per [same, or convertible] unit of measurement
Actual yield (Ya): Crop yields are the harvested production per unit of harvested area for crop products. Actual (Ya) reflects the current state of soils and climate, average skills of the farmers, and their average use of technology. In the future, we hope to accommodate more granular datasets that reflect major climate regions, inputs available and scale of the farming. For this exercise it will be enough to know the average actual yield of the crops on the national level.
Potential Yield (Yp): Potential yield is the yield of a crop when it is grown in an environment to which it is adapted, where nutrients and water are not limited, and where pests, diseases, weeds, and other stresses are effectively controlled. Potential yield (Yp) depends on location as it relates to weather but is independent of soil, which is assumed to be physically and chemically favorable for crop growth. For this exercise it will be enough to know the average potential yield of the crops on the national level.