Conservation Evidence strives to be as useful to conservationists as possible. Please take our survey to help the team improve our resource.

Providing evidence to improve practice

Individual study: Soil physical properties affected by long-term fertilization

Published source details

Pernes-Debuyser a. & Tessier D. (2004) Soil physical properties affected by long-term fertilization. European Journal of Soil Science, 55, 505-512

This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Amend the soil with formulated chemical compounds Soil Fertility

A replicated experiment from 1929 to 1999 on clay soil in France (Pernes-Debuyser and Tessier, 2004) found the highest soil organic carbon levels under manure application (37.2 g/kg soil) compared to the control (7.1 g/kg). The remaining treatments had carbon levels similar to or less than the control. Water retention was highest under manure application under low and higher water potential (0.32 g/cm3 and 0.009 g/cm3 respectively), compared to nitrogen and potassium treatments (0.17 g/cm3) (control figures not presented). Manure also had higher soil stability (81.9 % large soil aggregates) compared to phosphorus (22.2%) and nitrogen and potassium treatments (33.8%). Treatments included: no application (control, 10 plots); nitrogen (150 kg/ha/year); potassium (150 kg/ha/year); phosphorus (1t/ha/year); calcium (1 t/ha/year), horse manure (100 t/ha/year). Each treatment was replicated twice in 5 x 5 m plots. Soils were sampled at the end of the experiment.