A field experiment conducted during the rainy (kharif) season of 1992
and 1993 revealed that blackgram (Phaseolus mungo L.) and soybean [Gly
cine max (L.) Merr.] were suitable substitutes Tol niger (Guizotia aby
ssinica Coss) with regard to benefit : cost ratio, profit and producti
on. Intercropping of blackgram with niger (2 : 2 rows, 30 cm apart) pr
oved more advantageous over pure niger for production, niger equivalen
t, land-equivalent ratio (LER), gross returns and benefit : cost ratio
. Intercropping of soybean with niger (2 : 2 rous, 30 rm apart) was al
so found better than pure niger, but next best to niger; blackgram int
ercropping system.