Variations of soil structure and microbial population in a compost amended soil |
| |
Authors: | G Guidi A Pera M Giovannetti G Poggio M Bertoldi |
| |
Institution: | (1) Institute for Soil Chemistry, C.N.R., Via Corridoni 78, I-56100 Pisa, Italy;(2) Soil Microbiology Center, C.N.R., Via Del Borghetto 80, I-56100 Pisa, Italy |
| |
Abstract: | Changes in soil structure and in microbial population were recorded in a long term field experiment over the growing season
of maize (June–November). Determinations were made on samples from plots which had received, for two years, the following
treatments: mineral fertilizers, farmyard manure and three rates of compost. Seasonal variations were observed for the stability
of soil aggregates, total porosity, pore size distribution, mycorrhizal infection and aerobic cellulolytic microorganisms.
The stability of the soil aggregates changed in a similar way to that found for both mycorrhizal infection and the number
of aerobic cellulolytic microorganisms. Physical characteristics were not affected in any instance by the organic dressings
and microbiological populations were generally influenced only by the higher doses of compost. |
| |
Keywords: | cellulolytic microorganisms compost field trials maize mycorrhizae pore-size distribution porosity soil stability |
本文献已被 SpringerLink 等数据库收录! |
|