RT Journal Article
T1 Utilization of phosphogypsum and red mud in alfalfa cultivation
A1 Palencia García, Pedro
A1 Guerrero Márquez, José Luis
A1 Millán, Rebeca
A1 Mosqueda Peña, Fernando
A1 Bolívar Raya, Juan Pedro
AB In this work, the utilization of phosphogypsum (PG), a waste coming from the manufacture of phosphate fertilizers, as fertilizer for alfalfa (Medicago sativa L.) crops was investigated using pot experiments. The objective of this study was to evaluate the effects of both phosphogypsum and red mud (RM) in two soils representative of the pasture production area in Southern Spain. The morpho-physiological parameters of biomass, plant height, number of stems and number of leaves, as well as the chemical parameters of soil content, were measured. High doses of PG inhibited seed germination in some treatments. In addition, the treatment substrate (2550 g soil + 50 g kg-1 PG + 100 g kg-1 RM) also affected seed germination, possibly due to the large amount of RM. The application of PG and RM to the soil increased the availability of important nutrients for alfalfa, such as phosphorus (P), calcium (Ca2+) and magnesium (Mg2+). The results demonstrate that the treatment with PG significantly improved the uptake of P in alfalfa.
PB Elsevier
SN 2405-8440 (electrónico)
YR 2024
FD 2024-03
LK https://hdl.handle.net/10272/23816
UL https://hdl.handle.net/10272/23816
LA eng
NO Palencia, P., Luis Guerrero, J., Millán, R., Mosqueda, F., & Pedro Bolívar, J. (2024). Utilization of phosphogypsum and red mud in alfalfa cultivation. In Heliyon (Vol. 10, Issue 7, p. e28751). Elsevier BV. https://doi.org/10.1016/j.heliyon.2024.e28751
NO This work has been partially funded by: 1) Operative FEDER Program-Andalucía 2014-2020 (Ref.: UHU-202020); 2) PID2020-116461RB-C21/AEI/10.13039/501100011033; 3) TED2021-130361B-I00/AEI/10.13039/501100011033/Unión Europea NextGenerationEU/PRTR; 4) European Union Next Generation EU grant to Professor Dr. Pedro Palencia (BDNS (Identif.): 571952) and the Margarita Salas research grant funded from the Spanish Ministry of Universities to Professor Dr. José Luis Guerrero.
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026