Dear Mr. Ibrahim,
In general, I think that it is not possible to assess sustainability of anything with one single indicator neither monetary nor biogeophysical. So, the answer would be NO.
To helping you with the next question about other sustainability indicators, we probably need more information about the context in which you are assessing sustainability.
Good luck.
Dear Mr. Ibrahim,
In general, I think that it is not possible to assess sustainability of anything with one single indicator neither monetary nor biogeophysical. So, the answer would be NO.
To helping you with the next question about other sustainability indicators, we probably need more information about the context in which you are assessing sustainability.
Good luck.
From your research papers I take you imply sustainability in terms of input and off-take of nutrients in low-input cereal cropping under semi-arid conditions. And testing the "balance" of the nutrients by in the crop (e.g. ratio of P and N in the leaf).
Another sustainability component would be the manure supply chain, amount and transport costs. The Sahelian smallholder mixed-farming of livestock and grain with its nutrient concentration and transfer from pasture to field is very similar to the pre-industrial peasant farming in NW Europe. The latter lead to pasture degradation over extensive areas and was abandoned rapidly as inorganic fertiliser (NPK plus location- specific micro-nutrients) became available at affordable costs in a more market-oriented farming. In cost, transport of fertiliser and cereals from and to the industrial heartland were essential.
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