Fertilizers — Audiobooks
Principles and practice of agricultural analysis. Volume 2 (of 3), Fertilizers
by Harvey Washington Wiley
Crops and Methods for Soil Improvement
by Alva Agee
The Farm That Won't Wear Out
by Cyril G. (Cyril George) Hopkins
Principles and practice of agricultural analysis. Volume 1 (of 3), Soils
by Harvey Washington Wiley
Manures and the principles of manuring
by Charles Morton Aikman
Peat and its Uses as Fertilizer and Fuel
by Samuel W. (Samuel William) Johnson
Talks on Manures A Series of Familiar and Practical Talks Between the Author and the Deacon, the Doctor, and Other Neighbors, on the Whole Subject
by Joseph Harris
Principles and practice of agricultural analysis. Volume 3 (of 3), Agricultural products
by Harvey Washington Wiley