Author: Dr Ken E Giller

Feeding the world: a contribution to the debate

Dr Ken E Giller,
Professor Keith WT Goulding,
Professor Anthony Trewavas
Summary It is often claimed by proponents of organic farming that, if used worldwide, it would provide sufficient food for a growing world population. Here we make a critical assessment of this claim for wheat, a major cereal crop and source of food throughout the world. We have compared organic and conventional systems, examined some of the publications and claims in detail, and found a typical ratio of organic:conventional wheat yields of 0.65. Nitrogen (N) fixation by …