Artículo de acceso restringido. Disponible sólo para la Comunidad FAUBA.

Fernández, P. L.; Behrends Kraemer, F.; Sabatté, M. L.; Guiroy, J. F.; & Gutiérrez Boem, F. H. (2022)"Superabsorbent polyacrylamide effects on hydrophysical soil properties and plant biomass in a sandy loam soil". Communications in soil science and plant analysis,15p.

Solo
Usuarios
FAUBA

Registro:

Documento:
Artículo
Título en inglés:
Superabsorbent polyacrylamide effects on hydrophysical soil properties and plant biomass in a sandy loam soil
Autor/es:
Fernández, Patricia Lilia; Behrends Kraemer, Filipe; Sabatté, María Leticia; Guiroy, Juan Francisco; Gutiérrez Boem, Flavio Hernán
Filiación:
Fernández, Patricia Lilia. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.
Fernández, Patricia Lilia. CONICET. Buenos Aires, Argentina.
Behrends Kraemer, Filipe. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.
Behrends Kraemer, Filipe. CONICET. Buenos Aires, Argentina.
Sabatté, María Leticia. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.
Guiroy, Juan Francisco. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.
Gutiérrez Boem, Flavio Hernán. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.
Gutiérrez Boem, Flavio Hernán. CONICET. Buenos Aires, Argentina.
Año:
2022
Título revista:
Communications in soil science and plant analysis
ISSN:
0010-3624
Páginas:
15
Temas:
STRUCTURAL STABILITY; AGGREGATION MECHANISM; SWELLING – SHRINKAGE PROCESS
Idioma:
Inglés

Resumen:

There is a complicated relationship between land degradation, water efficiency, and crop yield in arid and semiarid regions. In the Semiarid Pampa region, Argentina, land use changes that affected fragile lands (high content of fine sands plus silt and low organic carbon) have decreased soil quality, thus endangering agricultural activities. The use of polyacrylamide (PAM) is an option for increasing productivity and protecting soil resources. However, there is scarce information about superabsorbent PAM on water storage linked to aggregate stability mechanisms in this fragile land. Hydrophysical variables and plant biomass were evaluated in a greenhouse pot experiment. Three factors were analyzed: 1) PAM rates (doses): D0 = 0%, D1 = 0.04%, and D2 = 0.08%; 2) vegetation presence (Festuca arundinacea ssp.): vegetation (+) and vegetation (–) and; 3) water regime: field capacity (FC) and half field capacity (FC/2). After 5 months, the incorporation of superabsorbent PAM had a strong effect on most hydrophysical variables. Storage variables (available water content and easily available water content) were improved mainly by increasing water retention at lower suctions (i.e. large pores). Dose increments regardless of the water regime led to higher plant biomass (P minor to .05). PAM incorporation enhanced abiotic mechanisms (swelling–shrinkage, cracks formation) and biotic mechanisms (root activity – direct, increment water retention – indirect) acting synergically to increase aggregate stability and water storage. Aggregate stability tests (fast wetting test – FW, slow wetting test – SW, and stirring aggregates after ethanol submersion – Stir) proved to be useful in discriminating stabilization mechanisms of soils, highlighting the effect of PAM incorporation on soil cohesion (Stir). Finally, superabsorbent PAM may contribute to maintain crop yields, leading to soil quality amelioration.

Citación:

---------- APA ----------

Fernández, P. L.; Behrends Kraemer, F.; Sabatté, M. L.; Guiroy, J. F.; & Gutiérrez Boem, F. H. (2022). Superabsorbent polyacrylamide effects on hydrophysical soil properties and plant biomass in a sandy loam soil. Communications in soil science and plant analysis,15p.
10.1080/00103624.2022.2096233

---------- CHICAGO ----------

Fernández, Patricia Lilia, Behrends Kraemer, Filipe, Sabatté, María Leticia, Guiroy, Juan Francisco, Gutiérrez Boem, Flavio Hernán. 2022. "Superabsorbent polyacrylamide effects on hydrophysical soil properties and plant biomass in a sandy loam soil". Communications in soil science and plant analysis:15.
Recuperado de  
http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2022fernandezpatricialilia