Contents 



IX 



The Use of Lime Do soils need lime ? The appli- 

 cation of lime When and how to apply lime The 

 form of lime to use Distribution of lime Analysis 

 and guarantee 



CHAPTER IX 



146-152 



PURCHASE OF FERTILIZERS 153-174 



Standard High-grade Materials 154-156 



Fertilizing Materials Variable in Composition . . 155-156 

 High-grade and Low-grade Fertilizers The "unit" 

 basis of purchase The " ton " basis of purchase The 

 necessity of a guarantee Laws alone do not fully pro- 

 tect Method of statement of guarantee sometimes mis- 

 leading Discussion of guarantees Kaw materials 

 Mixed fertilizers The advantages and disadvantages 

 of purchasing raw materials and mixed fertilizers . . 166-167 

 Home Mixtures Formulas The cost of handling 



" make-weight " 167-173 



General Advice . 173-174 



CHAPTER X 



CHEMICAL ANALYSES OP FERTILIZERS . 

 The Interpretation of an Analysis 

 The Agricultural Value of a Fertilizer 

 The Commercial Value of a Fertilizer 

 Calculation of Commercial Values 

 The Uniformity of Manufactured Brands 



CHAPTER XI 

 METHODS OF USE OF FERTILIZERS 



175-190 

 175-178 

 178-179 

 179-187 

 187-188 

 188-190 



. 191-211 



Conditions which Modify the Usefulness of Fertilizers 



Derivation of soil a guide as to its possible deficiencies 



Physical imperfections of sandy soils Physical im- 

 perfections of clay soils The influence of previous 

 treatment and cropping The influence of character of 

 crop The kind of farming, whether "extensive" or 

 "intensive" . 



191-199 



