relation: http://oar.icrisat.org/4979/ title: Phosphorus Uptake by Pigeon Pea and Its Role in Cropping Systems of the Indian Subcontinent creator: Noriharu, Ae creator: Arihara, J creator: Okada, K creator: Yoshihara, T creator: Johansen, C subject: Pigeonpea description: 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 Fe3+. 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. publisher: Science date: 1990 type: Article type: PeerReviewed format: application/pdf language: en identifier: http://oar.icrisat.org/4979/1/JA%20962.pdf identifier: Noriharu, Ae and Arihara, J and Okada, K and Yoshihara, T and Johansen, C (1990) Phosphorus Uptake by Pigeon Pea and Its Role in Cropping Systems of the Indian Subcontinent. Science, 248 (4954). pp. 477-480. ISSN 0036-8075 relation: http://dx.doi.org/10.1126/science.248.4954.477