Plant-soil relationships in the surface soil layer affect other processes in agroecosystems,
including crop productivity, nitrate leaching and plant-pest interactions. This study investigated …

This paper examines differences in the management styles of a purposive sample of almond
and winegrape growers in California’s Central Valley, including participants and non-…

We compared the crop yields and economic performance of organic, lowinput, and conventional
farming systems over an eight-year period based on research from the Sustainable …

The beginnings of modern organic agriculture are generally attributed to the writings in the
1940s of Sir Albert Howard and Lady Eve Balfour, which espoused that the health of plants, …

In intensive vegetable production, low organic matter (OM) inputs and leaching of nitrate (NO
3 − -N) decrease soil quality with time. Four management regimes were compared for their …

Roughly 20 percent of organic cropland wasdevoted to produce compared to only 3 percent
forconventional agriculture in 1995. At the otherextreme, only 6 percent of organic cropland …

Although hedgerows, windbreaks, and other biodiversity-enhancing farm edge features
offer the potential for ecosystem benefits without occupying much crop space, relatively few …

The USDA established the National Organic Program (NOP) to develop national standards
for organically produced agricultural products and establish an organic certification program …

Governments, nonprofit organizations, and grower groups have expended considerable
resources on agricultural extension and education programs, even though the evidence …

With increasing consumer awareness of its health, environmental, and social benefits, the
US organic sector has been growing by a vigorous 15-20% annually in recent years. …