Open Access
ARTICLE
Preparation of a Slow Release Biofertilizer From a Polymeric Urea-Formaldehyde Matrix (PUFM)
Laura Siverio Martínez1, Mayra González Hurtado1,*, Laura M. Castro González2, Jacques Rieumont Briones3, Ariel Martínez García1, María I. Hernández Díaz4
1 Institute of Materials Science and Technology, Polymer Laboratory, University of Havana, Zapata and G, C.P. 10400, C. Havana City, Cuba.
2 National Autonomous University of Mexico, Department of Physical and Theoretical Chemistry Coyoacan, Distrito Federal, MX.
3 Faculty of Chemistry, University of Havana, Department of Physical Chemistry, Zapata and G, C.P. 10400, Havana City, Cuba.
4 Institute of Horticultural Research Liliana Dimitrova, Quivicán, km 33½. Havana City, Cuba.
* Corresponding Author: Mayra González Hurtado. Email: .
Phyton-International Journal of Experimental Botany 2019, 88(4), 459-470. https://doi.org/10.32604/phyton.2019.07719
Abstract
Fertilizers industry faces the challenge of improving the efficiency of its
products either by optimizing the fertilizers in use or by developing new types of
them. During the last decade, controlled and slow release technologies have
become more important. These technologies aim to increase the efficiency of the
applied substance by increasing its action over time and avoiding losses of all kinds
(leaching, volatilization). The main purpose of the current study was to obtain a
slow release biofertilizer by incorporating microalgae into a polymeric ureaformaldehyde
matrix (PUFM). The quantitative analysis of macronutrients and
micronutrients in the microalgae was determined using different techniques
including titration, UV and Atomic Adsorption Spectroscopy. The matrix and the
formulation obtained (PUFM + CHLO) were also characterized by Infrared
Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). The “in vitro”
study showed a typical slow release behavior of nitrogen (N), phosphorus (P) and
potassium (K) macronutrients. It was also shown that (PUFM+CHLO) formulation
has the slowest macronutrients release time with a maximum release of 28%, 26%
y 46% for (N-P-K) macronutrients respectively during a period of 30 days. The "in
vivo" study exposed the benefits of the biofertilizer formulation (PUFM + CHLO)
from conventional commercial fertilizer (CF) (NPK-14-5-12). Due to the presence
of nutrients of natural origin in microalgae, (PUFM + CHLO) shows ecological
effects which could also developing sustainable agriculture systems.
Keywords
Cite This Article
Martínez, L. S., Hurtado, M. G., M., L., Briones, J. R., García, A. M. et al. (2019). Preparation of a Slow Release Biofertilizer From a Polymeric Urea-Formaldehyde Matrix (PUFM).
Phyton-International Journal of Experimental Botany, 88(4), 459–470. https://doi.org/10.32604/phyton.2019.07719
Citations