Food for ^' 

 Plants 4 



5 



118 



6 



Treatment Minerals + Ibs. per plot Applied 



Nitrate Of Soda 15 7.5 Ibs. at first cultivation; 7.5 Ibs. at 



Check Minerals only 

 Nitrate of Soda 15 



third cultivation. 



7.5 Ibs. at time of planting; 7.5 Ibs. at 

 third cultivation. 



White Potatoes. 



1 Nitrate of Soda 20 At time of 



2 Check Minerals only 



3 Nitrate of Soda 20 



One-half at time of planting; one-half 

 broadcast at first cultivation. 



4 Nitrate of Soda 25 At time of planting. 



5 Check Minerals only 



6XTJ* j. * C J ctK One-half at time of planting; balance 



Nitrate of boda 25 at first cultivation. 



Corn. 



Corn in Ear 24 Bushels. 



Average product per half acre 

 for U. S. of Corn with average 

 farm fertilization. 



Corn in Ear 56 Bushels. 



The product of half an acre of 

 corn fertilized with Nitrate of 

 Soda, home mixed with Phos- 

 phate and Potash. 



The land in all cases was similar to that already de- 

 scribed for the highlands, namely, naturally good soil, 

 but deficient in physical character or in humus. 



With the exception of timothy, the crops were all 

 planted at such times in the spring as was deemed most 

 satisfactory: timothy hay being seeded in the previous 

 year. In all of the experiments, the germination of seed 



