60 



CHEMICAL FKRTILIZKRS ; AND LIME 



Seaweed. (Two samples) I jj 



Moistun- at 100" C 12.05 14.96 



XitroKi-n 1.66 1.28 



I'hosphoric acid 0.44 0.17 



rotassiuin oxide 3.81 0.36 



Calcium oxide 2.73 3.86 



Magnesium oxide 1-48 1.30 



Fertilizer Formulas for Various Crops 



There is no exact method of determining the fertiUzer or plant-food 

 needs of the various crops. Certain guides have been estabhshed, 

 ho\ve\'er, from analyses of the plants and other means, and some of 

 tlic.se block formulas are given here for the information of the con- 

 sultant. The careful grower will make tests of his own (see p. 56), 

 and use formulas only as guides. 



Formulas suggested by the Maine Experiment Station. 



It is to be borne in mind in using these formulas that they are only 

 suggestive and that different conditions of soil make such diflferent 

 treatment essential that a formula which may prove successful on one 

 farm may not be equally so on another. In no case is it to be expected 

 that fertilizers will take the place of good tillage and care of crops. 



