Agroecology is a better alternative than large-scale agriculture, both for the climate and for small farmers in Sub-Saharan Africa, according to researcher Ellinor Isgren from Lund University in Sweden. This agricultural model preserves biodiversity and safeguards food supply while avoiding soil depletion.
She maintains that today's intensive, large-scale agriculture brings a major environmental impact in the form of soil depletion, high use of pesticides, high energy and water consumption and reduced biodiversity. Large areas are often cultivated with one or only a few different crops, making this type of agriculture vulnerable to pests, diseases and climate change.
Large-scale agriculture also requires major investments in the form of machinery, grains and seed, while utilising little labour. This means that poorer farmers in many African countries are excluded from the advantages of intensive agriculture: technological development, increased food production, access to the agricultural market and general economic growth.
Ellinor Isgren proposes agroecology as a possible alternative for small farmers in Sub-Saharan Africa. The model is based on each farm being an integrated ecosystem, in which crops, plants and animals interact to create favourable conditions for cultivation. This alternative is knowledge-intensive, requiring farmers to have a lot of knowledge about the functioning of various components in the ecological system, as well as an ability to create synergies between plants, insects, crops and soil fertility. The model also rests on traditional farming methods.
"If farmers use the model correctly, they can increase their yields and ensure their food supply while preserving biodiversity and reducing their impact on the climate and soil depletion. They also become less vulnerable to climate change as they grow many different crops and improve the soil structure," she says.
Further benefits are that the system does not require major resources in the form of machinery, pesticides and fertiliser, as the cultivation model is mainly organic, so even poor small-holders can farm in this way.
There are also good conditions for scaling up the model for sale to domestic and international markets. This would require more research and better collaboration between various agricultural institutions to develop knowledge of how different ecosystems function together and how local conditions affect the fertility of plants and crops. Initiatives are also needed to train farmers in how to apply an agroecological model.
"There is currently no political will in Uganda to push development of the agricultural sector. This has left the market open to private investors and strong financial interests in the form of seed and pesticide companies." she says.
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