Intercropping sweet potato with varying maize population [in Bangladesh]
1993
Bask, N.C. | Karim, M.M.A. | Shah, W.A.
An experiment was conducted at Kalikapur, Pabna during the winter season of 1989-90 and 1990-91 to find out a suitable maize population (50, 33 and 25%) for intercropping with sweet potato (100%). The yield of sweet potato decreased with the increase of maize population in intercropped situation. Sweet potato yield in intercrops ranged from 65-79% of sole crop yield. The highest grain yield of maize (6.02 t/ha) and sweet potato (23.48 t/ha) were observed from their respective sole crop. The grain yield of maize decreased with the decrease of maize population. Averaged over the years, it revealed that the highest sweet potato equivalent yield (29.76 t/ha), Ler (1.21) and return above variable cost (Tk 43418/ha) were obtained from the intercrop of 100% sweet potato (55,555 plants/ha) + 50% maize (77,777 plants/ha) instead of highest BCR of 4.05 in sole maize.
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