EFFECT OF BORAX ON POTATOES. 
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Fig. 1. — Diagram showing the yield of potatoes in experiments with borax at Presque 
Isle, Me., in 1920. The figures at the base of each column denote the number of 
pounds of borax applied per acre. The controls, designated by 0,, received only a com- 
plete commercial fertilizer, applied at the rate of 2,000 pounds per acre. The borax 
treatments were prepared by mixing the borax with the same quantity of commercial 
fertilizer that was used in the controls. Application of fertilizer : A, In the furrow 
one week before the time of planting ; B, in the furrow at the time of planting ; C, 
broadcast over the rows at the time of planting. 
