92 



The Bulletin 



TABLE X— Continued. 

 EFFECT OF VARYING QUANTITIES OF POTASH. 



EFFECT OF VARYING QUANTITIES OF FERTILIZER. 



(')Detailed results are given in June, 1910, Bulletin of North Carolina Department of Agriculture. 

 (2)Three times normal application added only one year and this to Field A, Plat 32. 

 OAverage for three years (1904-'05 and '06). 



in the soil. After 1904 a grain crop preceded the pea crop, a crop of 

 each being produced each year. It may be possible that the land was 

 tired of peas, or that it was *'pea-sick," as is. now and then spoken of 

 in connection with other crops. The inference that such was the case 

 would be very strong were it not for the other conditions influencing the 

 yields, which have already been referred to, and which must be consid- 

 ered. That the land is really in better condition for growing other 

 crops is shown by the yields of cotton and corn on these plats, they 

 having been in cotton in 1908 and corn 1909. The results of these two 

 crops on plats having the same fertilization show greater increases over 

 unfertilized plats than were obtained on the plats where corn and cotton 

 have been grown in rotation with each other, and where the type of 

 soil is the same. 



The experiments were planned to cover the culture and fertilization 

 of the cowpea as a whole, but the results of the several subdivisions or 

 phases of the subject are grouped in short sections in the table to facili- 

 tate examination and the drawing of conclusions. 



I 



