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Content archived on 2024-05-21

Multipurpose nitrogen fixing trees and their associated microsymbionts for soil nutrient enrichment in sub saharan africa

Objective

We aim to reverse declining crop yield in dry land Africa by using N fixing trees to improve soil fertility in a novel agro forestry system. Wet season tree leaves will be used as mulch to improve soil fertility dry season leaves will be sold as dry season fodder to generate secondary income for the purchase and application frock P. N fixation will be maximised by matching tree and symbiotic genotypes. Availability will be increased by mycorrhizas. Success of the applied microsymbionts will be followed in the field using DNA techniques. Economics will be examined and laboratory microbiological procedures used to maximise N fixation and P availability. Water use will be assessed to ensure sustainability in terms of water balance. N fixing tree fodder sales and P application will provide appositive feedback to increase farm income generation. The high value indigenous Pterocarpus erinaceus and more promising exotic Gliricidia sepium will be compared.

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Funding Scheme

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Coordinator

NATURAL ENVIRONMENT RESEARCH COUNCIL
EU contribution
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Hill of Brathens
AB31 4BW BANCHORY(KINCARDINSHIRE)
United Kingdom

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Participants (5)

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