Search Results       Your search for [author]Silveira Filho, Austrelino. returned 1 record.           Persistence in the soil and weed control efficacy of oxadiazon in lowland rice (Oryza sativa L.), 1980. by Silveira Filho, Austrelino.; 1980. Subject: Herbicides on; Plants, Effect of herbicides on; Rice - Weed control - Philippines.          Add to Book Cart Relevance: 36.84%