The effects of adverse economic conditions in U.S. agriculture upon the structure of farming have been given wide publicity. At the same time but less widely noted, a quiet revolution has taken hold of the ancillary industries supporting agriculture as they struggle to adapt to the changed...

The world's population in the last half of the 21 st century will be huge, likely double the current 5.5 billion, entailing a tremendous increase in food needs. However, due to past degradation of resources, unpredictability of technological progress, vicissitudes of climate, and inadequate...