5O EXPERIMENT FARM AT SOUTHERN PINES, N. C. 



per acre, that is 122 bushels less. On the plot re- 

 ceiving more than 2400 Ibs. of fertilizer per acre the actual 

 cost per bushel of potatoes to the grower, including seed- 

 ing, cultivation and fertilizers used, was only 8 cents per 

 bushel. Making the same calculation on the yield ob- 

 tained on the unfertilized plot, the cost per bushel of 

 potatoes was 50 cents. 



These results were obtained in a season which was 

 favorable to the growth of sweet potatoes. In ordinary 

 seasons excessive applications of fertilizers often do not 

 produce such paying results, and medium amounts are 

 most profitable ; nevertheless, the example shows what can 

 be done in a favorable season, and this also is a valuable 

 lesson to the grower. 



This brief outline of the operations at the Experi- 

 mental Farm at Southern Pines will give the practical 

 farmer some idea of the value and importance of the tests 

 being made to study the question of how to fertilize differ- 

 ent crops in the best and most economical manner. 



The results thus far obtained have thrown much light 

 on the problems of plant feeding, and the conclusions 

 drawn promise to be of great value and usefulness to 

 every farmer, fruit and vegetable grower in the United 

 States. The farm management issues publications for the 

 benefit of agriculture, which may be obtained free by the 

 applicant, and there will thus be spread, as widely as 

 possible, practical information of great value to the farm- 

 ers of the North and South, East and West. 





