Planting. Planting was conducted in dry season,December 1987 - March 1988 and early rain season, June - September 1988. Growing by corn planter (jab), planting 2 seeds per hill.
Thining were conducted 21 days after planting. Plant stand was
one plant per hill. And top dressing with 21-0-0 fertilizer about
30 kg./rai.