times as much phosphoric acid as have been removed by the 

 roots. Greater additions of potash and phosphoric acid have 

 no disadvantageous effect on the roots." 



On this basis we should supply for each ten tons of roots 

 removed 



200 pounds Sulphate of Potash 



300 pounds Acid Phosphate 



200 pounds Nitrate of Soda (or 250 pounds blood). 

 On clover sod or on land where a heavy application of 

 manure has been applied the previous year the nitrate or 

 blood may be reduced to one half. 



We must remember that the beet is a highly bred plant and 

 as such requires corresponding care in feeding. To obtain 

 the best results it must be supplied 



with the right plant foods, 



in the right amounts, 



in the right form, 



in the right way, 



at the right time. 



What the plant foods are, we already know, and the rela- 

 tive amounts needed have been shown. Since it is impor- 

 tant that the beet should make a continuous growth, the plant 

 foods should be in such forms that the beet can use them as 

 needed. This means that they must be soluble or in such 

 loose combination with the soil that the roots can readily 

 take them up. A large amount of unavailable plant food in 

 a soil is of no advantage to the beet and any attempt to in- 

 crease its availability by turning under green crops or apply- 



9 



