Arent organic foods better, because theyre grown without fertilizer?
Actually, most organic growers use fertilizer too. Its made from different ingredients though, such as livestock manure or sewage sludge. However, these natural fertilizers are not available in sufficient quantities to meet the demands of todays high-yield farming, nor do they provide nutrients in the fine-tuned combinations possible with commercial fertilizers. For example, using enough manure to provide an adequate supply of nitrogen would mean adding four to five times more potassium and phosphorus than a crop needs. So its easy to over- or under-fertilize in this type of farming. As well, organic crop yields are only one-third to one-half as high as those from farms using conventional fertilizers. So wed need to turn millions more acres of land over to farming, and still end up with less food. As for the notion that organically grown foods are better for you, there is simply no proof. Even leaders of groups such as the Organic Trade Association and knowledgeable organic growers the