|
|
Turtola, Eila; Alakukku, Laura; Uusitalo, Risto; Kaseva, Antti. |
Conservation tillage practices were tested against autumn mouldboard ploughing for differences in physical properties of soil, surface runoff, subsurface drainflow and soil erosion. The study (1991 -2001) was performed on a gently (2%) sloping clayey soil of southern Finland, with two replicates of the tillage treatments on 0.5 ha plots. The annual shares of surface runoff of the total flow (surface runoff + subsurface drainflow) were 8–42% for ploughing (depth 20–23 cm), 36–66% for shallow autumn stubble cultivation (depth 5–8 cm) and 36–82% for soil left untilled over winter. Surface runoff increased with decrease in the tillage intensity, and in line with the values of depressional water storage, macroporosity and saturated hydraulic conductivity.... |
Tipo: Journal paper |
Palavras-chave: Environmental aspects; Soil. |
Ano: 2007 |
URL: http://orgprints.org/16898/1/turtola.pdf |
| |