1240 



EARLE V. HARDENBURG 



approximates the optimum depth is considered in the following paragraphs 

 and tables. 



The relation of this factor to yield on Long Island in 1912 is shown in 

 table 70. The depth of planting appears to have influenced the yield in 



TABLE 70. RELATION OF DEPTH OF PLANTING TO YIELD ON 329 LONG ISLAND FARMS IN 1912 



this region very little. Altho the average yield increased slightly as the 

 depth increased, the increase in yield beyond the 3-inch depth was no 

 greater than would probably be due to the slight increase in seed and in 

 the value of manure and fertilizer used. Apparently, the average depth of 

 3.3 inches for 1912 was approximately the best. 



The results of a similar study in Steuben County are shown in table 71 : 



TABLE 71. 



RELATION OF DEPTH OF PLANTING TO YIELD ON 360 STEUBEN COUNTY FARMS 

 IN 1912 



