Better Methods of Potato Production for Iowa: Results of Three Years' Investigations at Iowa Agricultural Experiment Station, Volumes 145-155

Effects of Certain Alkali Salts on Ammonification: Volumes 44-60

Rural Social Survey of Hudson, Orange and Jesup Consolidated School Districts, Black Hawk and Buchanan Counties, Iowa: Volumes 217-230

Influence of Humus Forming Materials of Different Nitrogen-carbon Ratios on Bacterial Activities: Volumes 34-43

The Iowa Soil Survey and Field Experiments

Testing Soils in the Laboratory and Field

The Use of Fertilizers on Iowa Soils

The Iowa System of Soil Management

Soil Surveys, Field Experiments and Soil Management in Iowa

Rotation and Manure Experiments on the Wisconsin Drift Soil Area

Determination of Amino Acids and Nitrates in Soils: Amino Acids, Ammonia and Nitrates in Manured and Limed Soil, Volumes 22-33

Maintaining Fertility in the Wisconsin Drift Soil Area in Iowa

The Pasture Problem in Iowa

The Economic Value of Farm Manure as a Fertilizer on Iowa Soils: Volumes 229-241

Crop Returns Under Various Rotations in the Wisconsin Drift Soil Area

Crop Returns Under Various Rotations in the Wisconsin Drift Soil Area

Crop Yields on Soil Experiment Fields in Iowa

The Economic Value of Farm Manure as a Fertilizer on Iowa Soils

Raising Orphan Pigs: Protein modifications of cow's whole milk, frequency of feeding, nutritive ratio studies. I, Volumes 74-86

Supplemental Specialty Feeds for Making 225 Pound Pigs on Pasture: Volumes 82-100