A MADHAVI, P SURENDRA BABU, & P VENKATA REDDY. (2015). 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, 32(2). https://doi.org/10.56739/jor.v32i1.141816