home    about    browse    search    latest    help 
Login | Create Account

Soil properties under different orchard floor management systems for organic apple production

Zoppolo, Roberto J.; Stefanelli, Dario; Bird, George W.; Perry, Ronald L. and Weibel, Franco (2011) Soil properties under different orchard floor management systems for organic apple production. Organic Agriculture, 3, pp. 11-18.

[img] PDF
Limited to [Depositor and staff only]

1488Kb

Summary

Orchard floor management impacts soil conditions and thus tree performance. This research was initiated to investigate the effects of alternative orchard floor management systems compatible with organic production on soil parameters using the“Pacific Gala” apple cultivar (Malus × domestica Borkh.) on three rootstocks of varying vigor. Alfalfa hay mulch, propane flame burner, and Swiss sandwich system(combination of resident vegetation and tilled strips)were compared from 2001 to 2005. These treatments were applied to tree rows which provided different vegetation-free areas. Contrasting additions of organic matter were evaluated for their effect on soil organic matter (SOM), C content, nitrate and ammonium availability, moisture, and soil food web through nematode
populations. Laboratory incubations to determine C and N mineralization potentials were performed. During this time period, SOM increased under the mulched soil and slightly less under the Swiss sandwich system (SSS) but in this last case without external inputs. Carbon and N pools were not impacted by flame burning (FL) but were enhanced by alfalfa hay mulch (MU) and to a lesser extent by SSS. Nitrate-N content in soil under MU increased between five and ten times compared to SSS and FL. Total number of nematodes was
higher for SSS and MU compared with FL treatment; however, SSS had the most structured soil food web, an important sustainability trait, while MU had the least


EPrint Type:Journal paper
Keywords:Soil organic matter, Swiss sandwich system, Hay mulch, Propane flaming, Bioobstbau mineralization, Soil food web
Subjects: Crop husbandry > Soil tillage
Soil
Crop husbandry > Production systems > Fruit and berries
Research affiliation: Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Crop Production > Fruit Production
Related Links:http://www.springer.com/life+sciences/agriculture/journal/13165
Deposited By: Winter, Carmen
ID Code:20305
Deposited On:05 Jan 2012 08:16
Last Modified:05 Jan 2012 08:16
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

Repository Staff Only: item control page