The nitrogen effect of peat addition in clay soil

Authors

• Martti Salonen Agricultural Research Centre, Department of Agricultural Chemistry and Physics SF-01300 Vantaa 30
• Jorma Kähäri Agricultural Research Centre, Department of Agricultural Chemistry and Physics SF-01300 Vantaa 30

DOI: https://doi.org/10.23986/afsci.71961

Abstract

The nitrogen effect of ligno Carex peat addition to heavy clay with a low content of organic matter was investigated in a pot experiment of eight years. The test plant was oats. The nitrogen effect proved to be very small. It was evident that the positive effect of an addition of peat to mineral soil, which in some cases can be very marked in field conditions, is mainly physical. Primarily it may be due to improved soil moisture conditions.