158 



AGRICULTURE. 



PROPORTION OF PLANT FOOT> RECOMMENDED 

 FOR CROPS. (Virginia Exp. Station.) 



VALUATION OF MANURES AND FERTILIZERS. 



The valuation of fertilizing ingredients shown below (see 

 p. 159) is the one agreed upon by a number of Eastern experi- 

 ment and fertihzer control stations after a careful study of the 

 retail prices of crude products of fertilizers during the six months 

 prior to March i, 1908. It expresses the commercial value of 

 the fertilizers, and not thei« agricultural value; the latter will 

 vary according to the requirements of the land and the character 

 of the crops grown. Fertilizers are sold in States having fer- 

 tilizer control, on the basis of a guarantee of a minimum con- 

 tent of potash, phosphoric acid, and nitrogen, singly or com- 

 bined, and it is the oflfice of the fertilizer control stations to 

 watch that goods offered for sale in their respective States are up 

 to the guarantee. Farmers living in States where fertilizer laws 

 have been enacted (Alabama, Arkansas, California, Connecticut, 

 Delaware, Florida, Georgia, Illinois, Indiana, Kansas, Kentucky, 

 Loui.siana, Maine, Maryland, Massachusetts, Michigan, Mis- 

 sissippi, Missouri, New Hampshire, New Jersey, New York, 

 North Carolina, North Dakota, Ohio, Pennsylvania, Rhode 

 Island, South Carolina, Tennessee, Texas, Vermont, Virginia, 

 West Virginia, Wisconsin) should only buy fertilizers on guar- 

 antee, and should examine the fertilizer bulletins published by 

 their respective stations to ascertain that the goods put on the 

 market are not below the guarantee, and that the valuation 

 price is not below the selling price of the article. Where a reason- 

 able suspicion of fraud exists, apply to the director of the experi- 

 ment station for information concerning the goods offered for 

 sale or the firm placing them on the market. 



