In five localities in the State of São Paulo the interplanting of Dolichos lablab L. var. 697 with corn was studied. The effects of time and methods of planting of Dolichos and interplanting at different proportions of Dolichosand corn on the production of corn was investigated. Interplanting Dolichosand corn and the incorporation of Dolichosdid not have any influence on corn production. Dolichos can be planted from October to February and it produces more green matter when planted in October that is at the same time as corn, than later.