Bui. 993, U. S. Dept. cf Agriculture. 



Plate I 



Fig. I.— Effect on Potatoes of 20-Pound, Control, and 10-Pound 

 Applications of Borax per Acre. 



B 



V 30 -, ~-M. 



mm 



With- • ^^B 1 *' 

 20 &m. 



Fig. 2. Effect on Potatoes of 50-Pound. 30-Pound, and 20-Pound 

 Applications of Borax per Acre. 



Control rows on right and left. 



