Maize rabi prices drifted lower by Rs 20 per quintal in futures trading after speculators shrank their holdings amid a weak trend at the physical markets on subdued demand. Tracking a weak trend at the spot markets on low demand from poultry feed makers, led to the fall in maize prices at futures trade. NCDEX maize for delivery this month dipped by 1.51 per cent per quintal, in an open interest of 170 lots. Maize for delivery for most-active June contracts fell by 0.76 per cent per quintal, having an open interest of 8,220 lots.