Long-term effects of phosphate management on crop yields, phosphate fractions in the soil, organic matter content of soil and phosphate leaching.
Effects of different phosphate fertilization levels on crop yield, phosphate levels of phosphate soil fractions and risks of phosphate leaching. Levels of fertilization are monitored: 0, 70, 140 and 280 kg P2O5/ha. Since 2005, half of the fields are not fertilized any more. Measured soil phosphorus fractions are P-CaCl2, Pw, P-Al, P-ox and total P.
Data Access Statement
Janjo de Haan
Project leader & researcher Soil Water Fertilization
Design period: Current period from start of experiment in 1990 (1990—)
Long-term effects of phosphate fertilization on crop yields, soil and leaching. Part of larger project with other long-term grassland and arable experiments. Four P-levels with yearly fertilization (TSP). Since 2005 plots split in two with one half no fertilization.
phosphate fertilizer exposure
P0 (0 kgP/ha)
P70 (70 kgP/ha)
P140 (140 kgP/ha)
P280 (280 kgP/ha)
Soil phosphorous fractions
P-CaCl2, Pw, P-Al, P-ox and total P
Long-term effects of phosphate fertilization on crop yields, soil and leaching: Phosphate trial Lelystad Haan, J.J. de; Geel, W.C.A. van; Ehlert, P.A.I.
PowerPoint Presentation: Long-term effects of phosphate fertilization on crop yields, soil and leaching: Phosphate trial Lelystad LTE conference Rothamsted, 21 May 2018 Janjo de Haan, Willem van Geel, Phillip Ehlert