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(2007) Evaluation of Soybean Varieties Resistant to Soybean Cyst Nematode in Iowa, 2007. Iowa State University Extension
(2007) Managing Soybean Cyst Nematode, 2007. Iowa State University Extension
(2007) Managing Soybean for High Yield, 2007. Iowa State University Extension
(2007) Optimum Plant Population in Iowa, 2007. Iowa State University Extension
(2007) Optimum Plant Population in Iowa, 2007. Iowa State University Extension
(2007) Optimum Plant Population in Iowa, 2007. Iowa State University Extension
(2007) Soybean Planting Date, 2007. Iowa State University Extension
(2007) Soybean Planting Date, 2007. Iowa State University Extension
(1985) How a soybean plant develops,1985. Iowa State University
(1984) Iowa 1983 Corn and Soybean Data compiled and issued by Iowa Crop and Livestock Reporting Service, 1984. Agriculture and Land Stewardship
(1983) Sulfur--an essential nutrient, 1983. Iowa State University Extension
(1982) How a soybean plant develops,1982. Iowa State University
(1978) Iowa Fruit Grower's Market Report, 1978. Agriculture and Land Stewardship
(1971) Response in Yield and Leaf Composition of Soybean Varieties to Phosphorus, Potassium, and Calcium Carbonate Materials, August 1971. Iowa State University
(1967) How a Soybean Plant Develops: Special Report 53, November 1967. Iowa State University
(1967) Acreage Response and Production Supply Functions for Soybeans, September 1967. Iowa State University
(1966) Feasibility of Soybean Oil Refining in Iowa, 1966. Iowa State University
(1958) Research on Irrigation of Corn and Soybeans at Conesville and Ankeny, Iowa, 1951-1955 by G.O. Schwab, March 1958. Iowa State University
(1958) Seasonal Changes in Soil Moisture as related to Rainfall, Soil Type and Crop Growth by R.H. Shaw, J.R. Runkles and G.L. Barger, February 1958. Iowa State University
(1935) Processing the Soybean, 1935. Iowa State University
(1949) Extraction of Soybean Oil By Trichloroethylene, 1949. Education, Department of
