D. W. James

1929

• A Safe Place of Work
• Chase
• Modern irrigated soils
• Phosphorus fertility relationships of central Washington irrigated soils
• Soil fertility relationships of sugarbeets in central Washington
• Soil test index of plant-available potassium and the effects of cropping and fertilization in central Washington irrigated soils
• Sorption of NH ́in a dry system in relation to the chemical properties of clays and soils
• Source and degree of soil variation in the field