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 · Peerford