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PREFACE ftGRio.^ 



LIBRARY 



This is the twelfth edition of Food for Plants and, after 

 repeated and extended revisions, the work has come to 

 have a standard place in our American farm literature. 

 It nows includes results of original investigations and 

 experiments on Highlands Experimental Farms, made 

 under the personal direction of the late Professor E. B. 

 Voorhees. 



The main purpose of all the within recorded experi- 

 ments has been to demonstrate the value of Nitrate of 

 Soda in the scheme of rational fertilization on a practical 

 scale. The investigations have covered more particu- 

 larly the questions of amount of Nitrate and other chemi- 

 cals to be employed, time of application for most profit- 

 able results and practical methods for the preparation 

 of grass lands and the harvesting of the hay crop. 



These recorded experiments set forth the field work 

 intended as demonstrations in farm practice of what may 

 be accomplished by the rational use of Nitrate of Soda 

 under average farm conditions in a typical dairy section 

 of New York State. 



The earlier results have appeared from time to time 

 in former editions of " Food for Plants," '' Grass Grow- 

 ing for Profit," and " Growing Timothy Hay for 

 Market ' ' — all practical farm books of value, based on 

 actual scientific and sound practical data. Studies hav- 

 ing been made of methods of crop growing, from the 

 preparation of the land to handling and marketing the 

 crops, it is believed that these volumes have unique and 

 unusual value. 



WILLIAM S. MYERS. 



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