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Promiscuously nodulating varieties of soyabean have been developed which nodulate abundantly and effectively in most soils in southern Africa. Bred from genotypes collected in East Asia these promiscuous varieties nodulate with fast and slow-growing rhizobia representing several different genera. The symbiotic interaction between different soyabean genotypes and different rhizobial isolates varies...
Legume dinitrogen (N 2 ) fixation is a variable, but nonetheless valuable process in world agriculture, contributing almost 20% of the nitrogen (N) needed for world grain and oilseed production. For all crop legumes, there is great potential to increase the percentage of legume N derived from N 2 fixation as well to enhance the total N 2 fixed through improved management and...
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