Organic marketers and anti-GMO activists exaggerate these efforts, making claims that organics are «pesticide - free» and don't use «harmful» chemicals that they claim are the
mainstay of conventional agriculture, and often linked in their campaigns to genetically modified crops.
Supplements are called for especially if all ingredients are not organically certified, because the
soils of conventional agriculture are nutrient deficient, and almost toxic with synthetic agrichemical fertilizers and pesticides which also contaminate crops.
However, because of the convenience and labor - saving
methods of conventional agriculture, organic farming has taken a back seat since the technological breakthroughs that led to significant yields beginning in the 1940s, called the green revolution (not to be confused with today's «green» practices designed to minimize environmental impacts).
Practitioners of conventional agriculture are now borrowing «organic» techniques to reduce the use of pesticides, artificial fertilizers and excessive tillage, and to increase on - farm biodiversity, beneficial insects and soil conservation.
More important, although once dismissed as clownish, negligent farming, the organic movement is now seen as an innovative standard setter that is pulling
all of conventional agriculture toward higher environmental standards and more sustainable practices.