Although the determination of remaining phosphorus (Prem) is simple, accurate values could also be estimated with a pedotransfer function (PTF) aiming at the additional use of soil analysis data and/or Prem replacement by an even simpler determination. The purpose of this paper was to develop a pedotransfer function to estimate Prem values of soils of the State of São Paulo based on properties with easier or routine laboratory determination. A pedotransfer function was developed by artificial neural networks (ANN) from […]

Functional relations between soil attributes may be used to associate different physical soil properties with soil characteristics. The objective of this work was to determine the relationships between some soil physical properties, namely bulk density (BD), particle density (PD), field capacity (θFC), permanent wilting point (θPWP) and available water capacity(θAD) with soil attributes measured in routine soil surveys. Eighteen representative soil profiles from Rio Grande do Sul and Santa Catarina State, Southern Brazil, were used in this study. Disturbed and […]