ICIAGRO-LITORAL   28228
INSTITUTO DE CIENCIAS AGROPECUARIAS DEL LITORAL
Unidad Ejecutora - UE
artículos
Título:
Biological activity of soils cultivated with yacón (Smallanthus sonchifolius Poep. & Endl) H. Robinson, inoculated with Azospirillum brasilense and native mycorrhizal fungi
Autor/es:
DEL VALLE, ELEODORO EDUARDO; ANDRADA, HORACIO ENRIQUE; DI BARBARO, MARÍA GABRIELA; BRANDÁN, CELIA INÉS
Revista:
Revista de Ciencias Agrícolas
Editorial:
Universidad de Nariño
Referencias:
Año: 2021 vol. 38 p. 125 - 133
ISSN:
0120-0135
Resumen:
The soil is influenced by the roots of plants because the exudate radicalsaffect its physical, chemical, and biological processes. The aim of thisresearch was to evaluate the microbial activity of soils cultivated with yacón(Smallanthus sonchifolius Poep. & Endl) H. Robinson and inoculated withmicroorganisms which promote plant growth. The experimental designused was randomized blocks with three repetitions per treatment. Eachrepetition corresponded to a 3 x 3m plot with 25 plants, in 5 cultivationlines with a distance of 70 cm apart. Four treatments were applied atthe time of plantation. These consisted of yacón propagules inoculatedwith Azospirillum brasilense (T1) and native mycorrhizal fungi (T2)inoculated with the microbial consortium (T3). In the control treatments,the propagules were not inoculated with these microorganisms (T0).Soil samples were collected in lots cultivated with yacón located in theProvince of Catamarca, in the northwest of Argentina. The samples werecollected at the time of implantation and harvest during three agriculturalcycles. The total Biological Activity (TBA) of the collected samples wasdetermined by Fluorescein Diacetate Hydrolysis. The TBA of the soil wasaffected by the different crop treatments, which rose in the analyzed soilsand was statistically different from the control treatments. Significantdifferences were also observed between the TBA of the soils at thebeginning of the crops in comparison with the recorded values of thecrop at the time of harvest. The inoculation of yacón propagules with A.brasilense and native mycorrhizal fungi affects the TBA of the cultivatedsoils marking a significant increase.