CHAPTER XV

CROP-ROTATIONS 149-158

The farm scheme 149

Value of rotation 150

Selection of crops 151

An old succession of crops 152

Corn two years 153

The oat crop 154

Two crops of wheat 154

The clover and timothy 154

Two legumes in the rotation 155

Potatoes after corn 156

A three-years' rotation 157

Grain and clover 158

Potatoes and crimson clover 158

Crops and Methods for Soil Improvement · 第 15 / 25 章