Applying Zeolite to sandy loam soil increased rice yield by 11% compared to standard cultivation. Positive correlations were found between grain yield per plant and panicle weight or average panicle weight. However, negative correlations were observed between rough grain weight and internode length ratio. Path analysis showed that ripened grains and spikelets per panicle had a direct impact on grain yield. After heading, organic matter production increased in leaves, stem, and panicle. The majority of spikelets settled at the top of the primary rachis-branch, indicating a strong effect of Zeolite on rice production.