Characteristics and Kinetics of Phosphorus Release from Formulated Fertilizer in Clay Loam Soil

  • Vernadette J. Soriano Department of Chemical Engineering, College of Engineering and Agro-Industrial Technology, University of the Philippines, Los Baños, Laguna 4031
  • Veronica P. Migo Department of Chemical Engineering, College of Engineering and Agro-Industrial Technology, University of the Philippines, Los Baños, Laguna 4031
  • Monet Concepcion Maguyon-Detras Department of Chemical Engineering, College of Engineering and Agro-Industrial Technology, University of the Philippines, Los Baños, Laguna 4031
  • Catalino G. Alfafara Department of Chemical Engineering, College of Engineering and Agro-Industrial Technology, University of the Philippines, Los Baños, Laguna 4031
Keywords: Nanofertilizer, Phosphorus, Kinetics, Release Behavior, Clay Loam Soil, Zeolite

Abstract

A kinetic study for the phosphorus release of a formulated CaHAP-Z fertilizer was done to observe its behavior when applied to clay loam soil. The study of release kinetics of CaHAP-Z was done along with CaHAP and the control fertilizer Solophos™ to determine whether the formulated fertilizer can be an alternative for the conventional fertilizer. Results showed that the formulated fertilizer CAHAP-Z contains 3.73% phosphorus with 513.10 nm particle (Dynamic Light Scattering) indicating that the formulated fertilizer can be classified as a nanofertilizer. The formulated CaHAP-Z fertilizer showed the slowest release kinetics compared to the controls. In addition, this study showed that the simple Elovich kinetic model is the general equation that best fits to describe the phosphorus release of fertilizers.

Published
2019-12-01
How to Cite
Soriano, V., Migo, V., Maguyon-Detras, M. C., & Alfafara, C. (2019). Characteristics and Kinetics of Phosphorus Release from Formulated Fertilizer in Clay Loam Soil. KIMIKA, 30(2), 1-4. https://doi.org/https://doi.org/10.26534/kimika.v30i2.1-4
Section
Research Articles