Africa

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Fruit trees and legumes combined with food crops

Carbon storage: what matters is the input!

After 15 years of climate smart agricultural practices in Madagascar, researchers are categorical: while these alternative methods help increase soil carbon storage, their effectiveness varies substantially. The assessment must therefore be carried out on the scale of the territory.
Root nodules of Discaria (Order: Rosales), a non-legume species capable of nitrogen-fixing symbiosis.

Nitrogen-fixing symbioses reveal themselves

Recent research has revealed the origin and evolution of symbiotic relationships between certain plants and soil bacteria in order to use atmospheric nitrogen. This knowledge could ultimately contribute to the development of sustainable agriculture minimising the use of chemical fertilisers.
The fruit clusters of Coccoloba uvifera give it its nickname of sea grape.

Unwavering symbiosis

Research conducted on the introduction of a tree from extreme environments into the sand dunes of Senegal shows its solid relationship with a fungus. This fungus naturally accompanies the tree from its environment of origin, on the other side of the Atlantic.

Cultivating land for carbon

Soils from cultivated areas in tropical regions constitute largely underused carbon sinks. Increasing carbon stocks in soil has become critical to mitigate the effects of climate change but also increase soil fertility. What are the options?
Cowpea roots bear nodules which contain nitrogen-fixing bacteria.

Lipids that boost symbiosis

Certain legumes form a symbiotic relationship with bacteria! Tucked into their roots, these bacteria increase the crop yield of these plants. These bacteria, capable of producing lipid molecules known as hopanoids, therefore seem to provide a distinct advantage.