Observations and experiments on the fluctuations in the level and rate of movement of ground-water on the Wisconsin Agricultural Experiment Station Farm and at Whitewater, Wisconsin

Farmers of Forty Centuries

Farmers of Forty Centuries; Or, Permanent Agriculture in China, Korea and Japan

Principles and Conditions of the Movements of Ground Water

Investigations in Soil Management: Part I. Amount of Plant Food Readily Recoverable from Field Soils with Distilled Water. Part II. Relation of Crop Yields to the Amounts of Water-Soluble Plant-Food Materials Recovered from Soils. Part III. Relation

Farmers of Forty Centuries

Irrigation and Drainage: Principles and Practice of Their Cultural Phases

Farmers of Forty Centuries; Or, Permanent Agriculture in China, Korea and Japan

Farmers of Forty Centuries, or Permanent Agriculture in China, Korea and Japan (Classic Reprint)

Soil Management