Book cover for The Farm That Won't Wear Out

The Farm That Won't Wear Out

Verified Public Domain

Author: Cyril G. Hopkins
Language: English
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Tags:

Agriculture
Soils
Fertilizers
Index
What Goes To Make Up Permanent Fertility
The Nitrogen Problem And Its Economical Solution
Phosphorus: The Master Key To Permanent Agriculture
Permanent Soil Fertility: Its Relation to Profits and Future Values

All books are sourced from Project Gutenberg