1182 



EARLE V. HARDENBURG 



Manure and fertilizer used in the four regions 



There is considerable variation in the amount of manure and fertilizer 

 used in the four regions surveyed. On Long Island, where the crop is 

 grown successively on the same land, it is necessary to use large amounts of 

 fertilizer in order to maintain the yields. In table 23 are given data 

 concerning the use of manure and fertilizer in the four areas surveyed. It is 

 obvious from this table that the use of manure on potatoes is closely asso- 

 ciated with, and largely dependent upon, the dairy industry. 



TABLE 23. SUMMARY OF MANURE AND FERTILIZER USED IN THE FOUR REGIONS SURVEYED 



The first column of percentages .in table 23 includes not only the growers 

 who applied manure or fertilizer directly to potatoes, but also those who 

 applied manure or fertilizer to the crop preceding potatoes, the potatoes 

 receiving a certain percentage of value from the residue. On this basis, 

 the average value of manure and fertilizer used on Long Island was more 

 than twice that for the Monroe and the Franklin and Clinton County 

 areas, and nearly three times that for the Steuben County region. The 

 second and third columns of percentages in the table represent the 

 growers who applied fertilizer and those who applied manure, respectively, 

 directly to the potato crop. (The reader is referred to page 1178. for the 

 method used in, evaluating manure.) It may be noted that manure is 

 used directly for the potato crop by almost every grower in Steuben and 

 Monroe Counties, while on Long Island only one grower in five uses it 

 in this way. Growers on Long Island do not find it so practicable because 

 of the expense of handling it for large acreages, the danger of scab infection, 

 and the insufficiency of the supply for their fertilizer needs. In Steuben and 

 Monroe Counties, manure is almost invariably applied to the sod land 

 previous to plowing for potatoes. It is so applied also, but to a lesser 



