CHAPTER III. 

 MANURES AND FERTILIZING MATERIALS. 



By PROF. J. E. HALLIGAN, 

 Chemist in Charge, Louisiana State Experiment Station. 



SECTION XL FARM MANURES. 



There are two kinds of manures, natural manures and 

 artificial manures or commercial fertilizers. 



Natural Manures. Under this head come those 

 fertilizing materials which are not manufactured, but 

 occur naturally. Farm manure, marl, wood ashes, 

 muck, and gypsum are natural manures. 



Farm Manure. This fertilizer is of a variable 

 composition, the texture or the coarseness of which 

 depends upon the kind and amount of bedding used. 

 Farm manure is of two kinds: stable manure and barn- 

 yard manure. Manure which is collected or accumu- 

 lated in stables and which contains all the excrements 

 is called stable manure. This manure is protected 

 from the rain and the sun, and is free from losses of 

 fertilizer ingredients. Sufficient bedding is supplied 

 to absorb all the liquid portion of such a manure. 

 Manure which is allowed to be exposed to the action of 

 the rain and the sun is called barnyard manure. This 

 manure collects around barnyards and may consist of 

 pure excrements, or excrements and bedding in vary- 

 ing proportions. 



Conditions Affecting the Value of Farm Manure. 

 The method of handling and preserving manure, the 

 kind and amount of bedding used, the kind of animals 

 and their age, and the kind of food furnished the 

 animal all affect the value of farm manure. 



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