Soils

Principles and practice of agricultural analysis. Volume 3 (of 3), Agricultural products

by Wiley, Harvey Washington

English 3433h 55m read

Soils, their formation, properties, composition, and relations to climate and plant growth in the humid and arid regions

by Hilgard, Eugene W. (Eugene Woldemar)

English 3240h 49m read

Principles and practice of agricultural analysis. Volume 1 (of 3), Soils

by Wiley, Harvey Washington

English 3478h 31m read

Principles and practice of agricultural analysis. Volume 2 (of 3), Fertilizers

by Wiley, Harvey Washington

English 1920h 27m read

Crops and Methods for Soil Improvement

by Agee, Alva

English 926h 19m read

Lessons on Soil

by Russell, Edward J. (Edward John)

English 520h 1m read

The Story of the Soil; from the Basis of Absolute Science and Real Life

by Hopkins, Cyril G. (Cyril George)

English 1657h 21m read

The Farm That Won't Wear Out

by Hopkins, Cyril G. (Cyril George)

English 276h 22m read

The Formation of Vegetable Mould Through the Action of Worms - With Observations on Their Habits

by Darwin, Charles

English 1055h 54m read