Effects of nanofertilizer and nano-plant hormone on soil chemical properties and microbial community in two different soil types

Autor: PIDE, John Lester Viscara, ORGANO, Nolissa Delmo, CRUZ, Andre Freire, FERNANDO, Lilia M., VILLEGAS, Lucille C., DELFIN, Evelyn F., CALUBAQUIB, Michelle Ann Magat, MAdayAG, Roselle Estera, PATERNO, Erlinda S.
Zdroj: Pedosphere; 20220101, Issue: Preprints
Abstrakt: Application of nanotechnology in agriculture has expanded to improve crop production. This study was conducted to assess the effects of a nanofertilizer–FertiGroe® N (FG-N) and a nano-plant hormone–HormoGroe® Auxin (HG-A) on the chemical properties and microbial community of Lipa clay loam (CL) and Sariaya sandy loam (SL) soils over a 35-d incubation period in the laboratory. The bacterial and fungal communities were evaluated through amplicon sequencing analysis within the 16S and ITS regions, respectively. FG-N significantly decreased soil pH, but did not affect the total N and available P for both soil types. A significant increase in exchangeable K was observed only in Lipa CL. HG-A had no significant effect on the soil chemical properties. Concerning the bacterial community after incubation, the relative abundance of Acidobacteriia, Chthonomonadetes, and Saccharimonadidecreased with FG-N application in Lipa CL while Acidimicrobiia, Chloroflexia, and Gemmatimonadetesincreased. HG-A application increased the relative abundance of Rubrobacteria, Chthonomonadetes, and Chloroflexiain Lipa CL. For the fungal community, FG-N application increased the relative abundance of Sordariomycetes, Agaricomycetes, and Eurotiomycetesin Lipa CL after incubation while Dothideomycetesand Mortierellomycetesdecreased. In Sariaya SL, FG-N application increased the relative abundance of Dothideomycetes, Eurotiomycetes, and Mortierellomycetes, but decreased that of Sordariomycetesand Agaricomycetes.Fungal classes observed in the control samples were not detected in HG-A treatment but recovered after incubation in Lipa CL. Microbial diversity in both soil types revealed slight changes with FG-N and HG-A application. For bacteria and fungi, the Principal coordinate analysis (PCoA) illustrated clustering between Lipa CL and Sariaya SL. Pearson correlation analysis showed that several bacterial and fungal community were correlated positively or negatively with soil pH. Results showed that FG-N can be safely used in crop production. HG-A may be used mainly for vegetative propagation.
Databáze: Supplemental Index
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