CONTENTS 



CHAPTEA PAGI 



I. — Plant Growth , ,1 



II. — The Atmosphere and Soil . ^  ,19 



III.-^Manures 49 



IV.— Crops 71 



v.— Rotation of Crops 89 



VI. — Animal Nutritiojjj . 104 



VII. — Nutrition in Terms of Energy .... 118 



VIII.— Foods 129 



IX.— Relation of Food to Animal Requirements . 169 



X.— Relation o. Food to Manure . . . .210 



XI.— The Dairy 225 



APPENDIX— New Nitrogenous Manures . . . .244 

 INDEX 248 



