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Index
The Farm That Won't Wear Out
Preface
CONTENTS
CHAPTER I: What Goes To Make Up Permanent Fertility CHAPTER II: The Nitrogen Problem And Its Economical Solution CHAPTER III: Phosphorus: The Master Key To Permanent Agriculture CHAPTER IV: Permanent Soil Fertility: Its Relation to Profits and Future Values
CHAPTER I
WHAT GOES TO MAKE UP PERMANENT FERTILITY
Foods That Plants Live On
England's Best Lesson in Farming
Fertility in Normal Soils
Measuring Fertility Losses
The Liberation of Fertility
The Renewal of Fertility
Thirty Bushels for Potassium
Liming the Soil
CHAPTER II
THE NITROGEN PROBLEM AND ITS ECONOMICAL SOLUTION
200 Per Cent for Nitrogen
Where Is Nitrogen?
Six Facts and a Question
How to Supply Nitrogen
Live-Stock or Grain Farming
CHAPTER III
PHOSPHORUS: THE MASTER KEY TO PERMANENT AGRICULTURE
Potato Yield Twice Doubled
Phosphorus Helps Good Farming
The Form of Phosphorus to Use
More Bushels and Tons
Making Phosphate Available
CHAPTER IV
PERMANENT SOIL FERTILITY
Its Relation to Profits and Future Values
Is Land a Safe Investment?
Some Broad Facts
The Value of Land
What Phosphorus Did on One Farm
"Working" the Land
Is the Soil Inexhaustible?
The Values in Land
Working Mind and Muscle
AUTHOR'S NOTE
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