CHAPTER IX; 



TIT 10 DIFFERENT KINDS OF MANURE NOTES ON VEGETABLE MA- 

 NURES ANIMAL PRODUCTS THEIR ANNUAL RECKLESS 



WASTE ESTIMATE OF THE LOSS TO AGRICULTURE 



HINTS ON THEIR PRESERVATION AND UTILIZATION GUANOS 



DESCRIBED AND ANALYZED THEIR VARIABLE QUALITY 



FISH MANURES TABLE OF NITROGENOUS SUBSTANCES. 



A complete description and analysis of all the substances used as 

 manure would of itself fill a considerable volume, but we doubt 

 whether the advantage of such a treatise would be proportionate to 

 the labor of its compilation. 



We shall therefore confine our remarks to those of generally recog- 

 nized utility, classing them as vegetable, animal, mixed (or farm- 

 yard), and mineral manures. 



VEGETABLE MANURE. 



Every description of plant roots, stalks, leaves and seeds 

 becomes, when plowed into the soil, a valuable fertilizing agent. 



The most important, however, are those of the leguminous species, 

 thanks to their long and trailing roots, by means of which they pen- 

 etrate to a considerable depth into the earth, and thus acquire from 

 below, elements which other plants are unable to attain. 



From this reason the benefit of rotatory crops becomes manifest, 

 and we understand at once why wheat crops are so much more 

 plentiful, when following two or three crops of clover or luzerne. 



The quantity of roots and stubble, or waste, from a crop of clover 

 has been estimated to weigh, when dried at a normal temperature, 

 one thousand pounds per acre. This would contain about fifteen 



