A MADHAVI; P SURENDRA BABU; P VENKATA REDDY. Requirement of phosphorus and its use efficiency by sunflower (Helianthus annuus L.) in high phosphorus soils: REQUIREMENT OF PHOSPHORUS AND ITS EFFICIENCY BY SUNFLOWER IN HIGH PHOSPHORUS SOILS. Journal of Oilseeds Research, India, v. 32, n. 2, 2015. DOI: 10.56739/jor.v32i1.141816. Disponível em: https://epubs.icar.org.in/index.php/JOR/article/view/141816. Acesso em: 3 nov. 2025.