CONTENTS XI 



CHAPTER 5 

 MAINTAINING THE FERTILITY OF THE LAND 



PAGE 



ARE OUR CROP YIELDS DECREASING ? 183 



WAYS IN WHICH PRODUCTIVITY MAY BE DECREASED . . 184 

 MAINTAINING THE ORGANIC MATTER : 



Importance of Organic Matter ...... 186 



Crop Residues ......... 186 



Farm Manure as a Source of Organic Matter . . . 187 



Pasturing off Crops 188 



Green Manure 188 



MAINTAINING THE NITROGEN SUPPLY ...... 195 



MAINTAINING THE MINERAL MATTER ..... 196 



AMOUNT AND VALUE OF FARM MANURE PRODUCED: 



Fertilizing Value of Feed and of Manure .... 197 



Amount and Value of Manure Produced by Farm Animals 197 



METHODS OF HANDLING MANURE ...... 199 



BEST WAY OF MAINTAINING FERTILITY A BUSINESS QUESTION . 200 



CHAPTER 6 



THE FARM MANAGEMENT POINT OF VIEW ON 



SOME LIVE-STOCK PROBLEMS 

 AMOUNT OF LIVE-STOCK TO KEEP : 



Live-stock Largely Produced by Cheap Food . . . 203 



Live-stock Largely Produced by Cheap Time . . . 206 



Live-stock Produced on a Low Margin of Profit . . . 207 

 Keeping Stock Enough to Eat All the Hay and Grain vs. 



Always Having Feed Enough for the Stock . . . 207 



Animal Unit 209 



FEEDING ANIMALS : 



Balanced Rations 212 



Short Method of Balancing Rations for Cows . . . 212 



" Roughing " Animals through Winter .... 213 



Feed Units 216 



ANIMAL RECORDS : 



Milk Records 217 



Short Methods of Weighing Milk 219 



Butter Fat Tests 219 



Production Required for Profit 220 



Egg Records 221 



Animal Records 222 



