The aim of this work was to assess the impact of a novel P nanofertilizer (P-NF) on P solubility, microbial toxicity, soil respiration rate, soil enzyme activity and soil microbial community composition of two soils with contrasting properties in a laboratory incubation study. From the comparison with a commercial triple superphosphate (TSP), the P-NF induced lower release of soluble P, did not cause microbial toxicity, nor reduced soil respiration. Among the measured enzyme activities involved in C, N, P and S mineralization, only the protease activity was significantly inhibited by the P-NF in both the studied soils. Analysis of soil microbial communities showed no significant impacts on bacteria, fungi and archaea, after 1 and 7 d of incubation. We concluded that the tested novel P-NF could be safely used in agriculture.
Ciurli, A., Giagnoni, L., Pastorelli, R., Sega, D., Zamboni, A., Renella, G., et al. (2022). A novel P nanofertilizer has no impacts on soil microbial communities and soil microbial activity. APPLIED SOIL ECOLOGY, 178(104570), 1-6 [10.1016/j.apsoil.2022.104570].
A novel P nanofertilizer has no impacts on soil microbial communities and soil microbial activity
Ciurli, A;
2022
Abstract
The aim of this work was to assess the impact of a novel P nanofertilizer (P-NF) on P solubility, microbial toxicity, soil respiration rate, soil enzyme activity and soil microbial community composition of two soils with contrasting properties in a laboratory incubation study. From the comparison with a commercial triple superphosphate (TSP), the P-NF induced lower release of soluble P, did not cause microbial toxicity, nor reduced soil respiration. Among the measured enzyme activities involved in C, N, P and S mineralization, only the protease activity was significantly inhibited by the P-NF in both the studied soils. Analysis of soil microbial communities showed no significant impacts on bacteria, fungi and archaea, after 1 and 7 d of incubation. We concluded that the tested novel P-NF could be safely used in agriculture.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
