Search Results       Your search for [author]Passatayangkul, Surasak returned 1 record.           Sunflower seed production as influenced by varying levels of fertilizer and plant population. by Passatayangkul, Surasak; Nueva Ecija: Central Luzon State University, 1972. Subject: Agriculture; Sunflower seeds -- Production; Fertilizers -- Effect on sunflower; Sunflower seeds -- Distances of planting; Fertilizers -- Application levels.          Add to Book Cart Relevance: 25.46%