This document provides technical knowledge and procedures for irrigation and drainage management in rice cultivation. Regular drainage through furrows 3-4 times from planting to harvesting is important to control weeds and keep the soil loose. Proper irrigation and drainage systems are needed, not just regular irrigation. The first weeding of rice seedlings should be done two weeks after planting, followed by weeding every 15-15 days. Irrigation needs to be managed properly according to rainfall levels to ensure good yield and healthy plants.

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