66 



VEGETABLE GARDENING 



the composition of plants. It is also the best known 

 preventive for club root of cabbage and allied crops. 



Spring applications of lime gave better results at Nor- 

 folk than fall treatment. Lime should never be applied 

 with manure, because it releases the ammonia. When 

 both manure and lime are to be applied to the same soil 

 it is best to plow under the manure, then spread the lime 

 and mix thoroughly with the soil by harrowing. 



FIG. II. SINGLE-ROW FERTILIZER DISTRIBUTOR 



The acid soils at Norfolk require from 3,500 to 6,300 

 pounds of lime to the acre to become alkaline. A ton of 

 lime on many soils would be sufficient for the best results. 



III. Related questions. — When a grower learns that it 

 is possible to increase profits materially by the use of fer- 

 tilizers there is danger of his depending too much upon 

 special plant foods and not enough upon other closely 

 related questions, such as tillage, soil moisture and the 

 supply of humus. It should be borne in mind that no 



