The study was conducted at the PPO Lelystad experimental farm of Applied Plant Research Wageningen UR, in the Netherlands, in a polder reclaimed in 1957 (52° 31′N, 5° 29′E). The daily mean temperature ranged from 2 °C in winter to 17 °C in summer months, and mean rainfall was 794 mm per year during the study (Royal Netherlands Meteorological Institute, 2013). The soil type is a calcareous marine clay loam with 23% clay, 12% silt, and 66% sand. Soil pH is 7.9, and soil organic matter is 3.2% averaged across fields at the experimental farm.