CHAIRERK SUWANNARAT; WIROJ WAJANANAWAT. Effects of Sources of Phosphorus Fertilizer on Crop Yields in Rice-Soybean Double Cropping. Agriculture and Natural Resources, Bangkok, Thailand, v. 21, n. 1, p. 93–101, 1987. Disponível em: https://li01.tci-thaijo.org/index.php/anres/article/view/242587. Acesso em: 18 sep. 2026.