Abstract
A field experiment was carried out during 1998-99 and 1999-2000 using 'Ganga 2' maize (Zea mays L.) and 'Raj. 3077' wheat (Triticum aestivum L. emend. Fiori & Paol.) varieties in maize-wheat cropping system with 3 green-manuring treatment, viz. given-manuring with Sesbania cannabina, Sesbania rostrata and without green- manuring, in maize crop and 5 levels of nitrogen, viz. No, N,,, N,, N,, and N,,, in subplots. Green-manuring with S. cannabina and S. rostrata with 90 kg Nlha to maize crop increased grain yield by 10.69 and 10.49 qlha over the control respectively. Sesbania cannabina and S. rostrata alone increased maize grain yield by 2.87 and 2.77 qlha over the control respectively. Green-manuring either of the Sesbania species + 30 kg Nlha gave maize yield at par with 90 kg Nlha alone. It indicated that green-manuring was equivalent to 60 kg nitrogen. Green-ma- nuring with S. cannabina also increased the grain yield (30.27 qlha). Application of 90 kg Nlha with and without Sesbania species in maize crop also significantly increased the grain yield (29.07 qlha) of succeeding wheat crop over that of the control (24.69 qlha).
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