N2 fixation, grain mineral accumulation, and water-use efficiency in 30 field-grown groundnut (Arachis hypogaea L.) genotypes in Mpumalanga, South Africa, measured using 15N and 13C natural abundance techniques

N2 fixation, grain mineral accumulation, and water-use efficiency in 30 field-grown groundnut (Arachis hypogaea L.) genotypes in Mpumalanga, South Africa, measured using 15N and 13C natural abundance techniques

African soils are inherently low in mineral nutrients. Incorporating N2-fixing legumes into cropping systems can improve soil fertility and increase crop yields. This study assessed N2 fixation, carbon assimilation, grain mineral accumulation and water-use efficiency of 30 groundnut genotypes grown...

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Bibliographic Details
Main Authors: Titus Y. Ngmenzuma, Richard Oteng-Frimpong, Felix Dapare Dakora
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-06-01
Series:Frontiers in Agronomy
Subjects:
N2-fixation
grain yield
soil N uptake
seed protein content
grain mineral content
Online Access:https://www.frontiersin.org/articles/10.3389/fagro.2025.1483741/full
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