title: Phosphorus uptake by pigeon pea and its role in cropping systems of the Indian subcontinent.
abstract: Pigeon pea was shown to be more efficient at utilizing iron-bound phosphorus (Fe-P) than several other crop species. This ability is attributed to root exudates, in particular piscidic acid and its p-O-methyl derivative, which release phosphorus from Fe-P by chelating Fe(3+). Pigeon pea is normally intercropped with cereals under low-input conditions in the Indian subcontinent. Although pigeon pea can utilize the relatively insoluble Fe-P, intercropped cereals must rely on the more soluble calcium-bound phosphorus. This finding suggests that cultivation of pigeon pea increases total phosphorus availability in cropping systems with low available phosphorus.
authors.forename: N
authors.initials: N
authors.lastname: Ae
authors.forename: J
authors.initials: J
authors.lastname: Arihara
authors.forename: K
authors.initials: K
authors.lastname: Okada
authors.forename: T
authors.initials: T
authors.lastname: Yoshihara
authors.forename: C
authors.initials: C
authors.lastname: Johansen