http://orgprints.org/6680/ Henry Doubleday Research Association (HDRA): Long-term crop experiments/ field studies Hunts Mill Warwick HRI Wellesbourne – 13 hectares, since 1996, investigating the performance of three cropping strategies contrasting in terms of cropping and fertility building regimes (vegetable/arable systems). Organic Unit Warwick HRI Kirton – 3.2 hectares, since 1997, investigating the performance of a field vegetable cropping strategy (DEFRA). 7plantbreed 5vegetables 4plant uk-hdra uk_defra Henry Doubleday Research Association (HDRA): Long-term crop experiments/ field studies 2006-01-17 {Facility} HDRA: Henry Doubleday Research Association (HDRA): Long-term crop experiments/ field studies. Facility Leader(s): Rayns, F and Collier, R, Henry Doubleday Research Association. More information online at <http://www.hdra.org.uk <http://www.hdra.org.uk>>.