A study from The Netherlands, published in Agriculture, Ecosystems & Environment, explored a 13-year comparison of organic and conventional farming. The study found that although organic farming is considered less productive than conventional farming, the yield gap diminished over time. In this study, yields from the organic system approached those of both conventional systems in the comparison after 10 to 13 years, while requiring lower nitrogen inputs. Over time, the soil structure and quality in the organic system improved. Furthermore, the authors of the study concluded that, after time, organic farming may result in greater spatial stability of soil biotic and abiotic properties and soil processes.