info:oai:icrisat:8063info:ofi/fmt:xml:xsd:journalSivakumarM V KSivakumar, M V KVirmaniS MVirmani, S MGrowth and Resource Use of Maize, Pigeonpea and Maize/Pigeonpea Intercrop in an Operational Research WatershedExperimental Agriculture0014-4797198016377-3864article