Impacts of organic and conventional crop management on diversity and activity of free-living nitrogen fixing bacteria and total bacteria are subsidiary to temporal effects.

por Caroline H Orr, Carlo Leifert, Stephen P Cummings, Julia M Cooper
Publicado 2012

Organic production enhances milk nutritional quality by shifting fatty acid composition: a United States-wide, 18-month study.

por Charles M Benbrook, Gillian Butler, Maged A Latif, Carlo Leifert, Donald R Davis
Publicado 2013