Effects of the legume catch crop Serradella on P mobilization and P release in problematic soils in a pot experiment

We identified problematic arable soils in northeastern Germany, which appeared to be characterized not only by severe P supply problems but also by severe P fixation problems. In a small-scale pot experiment, we investigated the influence of the legume catch crop Serradella on the P supply and P release in these soils. Three fertilization intensities (without phosphorus fertilization (P0), 50 kg TSP per hectare (P50) and 100 kg TSP per hectare (P100)) were tested with and without Serradella. Two samplings were performed during the experimental period: an intermediate harvest four weeks after sowing and a harvest eight weeks after sowing. P-mobilization and P-release in the soil were determined by measuring potential enzyme activities, total element concentration, plant-available phosphate concentrations, and dithionite and oxalate soluble element concentrations.

Dataset version 1.0