A non-computerized version of BOLLMAN will be helpful to facilitate the use of COTMAN for crop monitoring on a small scale without a large investment, and to help users learn the mechanics of the BOLLMAN system, appreciate the power of the computer-based version, and develop confidence in rule bases. BOLLMAN utilizes three sets of information: 1) sequential counts of nodes-above-white-flower (NAWF), 2) determination of the latest possible cutout (LPC) date, and 3) calculation and accumulation of heat units after cutout for each field.