22 resultados para Epibiotic, field experiment
Resumo:
At head of title: War Dept., Corps of Engineers, Mississippi River Commission.
Resumo:
Issued in cooperation with Iowa State University of Science and Technology, Agriculture and Home Economics Experiment Station, and the Center for Agricultural and Economic Development.
Resumo:
"May 1981."
Resumo:
"United States Department of Agriculture in cooperation with Alaska, Minnesota, Montana, North Dakota, and Texas Agricultural Experiment Stations."
Resumo:
Saline Valley Farms was an experiment in cooperative farming and living begun in 1932 by Harold S. Gray.
Resumo:
Saline Valley Farms was an experiment in cooperative farming and living begun in 1932 by Harold S. Gray.
Resumo:
Saline Valley Farms was an experiment in cooperative farming and living begun in 1932 by Harold S. Gray.