Minimizing weed competition through waterlogging in rice (Oryza sativa) under various soil types

National rice production continues to be increased meet the needs of food security in Indonesia. But reality, every cultivation always raises problem weed disturbances. One way control weeds can through waterlogging. Waterlogging suppress growth and increase yields. This study was conducted from August 2019-January 2020 at greenhouse conditions, Faulty Agriculture, Universitas PGRI Yogyakarta. The aimed knowing waterlogging period minimize competition yield. arranged a completely randomized design (CRD) factorial with three replications. first factor period, which consisted levels : without waterlogging, 1-15 days after planting (DAP) 1-30 DAP. second soil types, four kinds latosol, coastal sandy, volcanic regosol soil. observation carried out 60 DAP, done 104 results showed that could fields. Furthermore, DAP inhibit dry weight (WDW) leaf area index (LAI), shoot root ratio (SRR), grain (GDW) harvest (HI) different types. gave highest GDW latosol (7.5 t/ha), then decreased (6.0 (5.9 t/ha) lowest sandy (4.8 t/ha). research findings Thus, it highly recommended practised as cultural cultivation. In future research, types are tolerant treatment need combined weeding treatment.