Food for this nature and which can only be obtained by having 

 *" s the soil very compact and in fine tilth so as to promote 

 162 the capillary movement of the soil moisture to the sur- 

 face, where it may be retained for the use of the crop by 

 means of frequent and shallow cultivation. 



The advantage of using Nitrate of Soda instead of 

 stable manure as the source of Nitrogen for this crop is 

 plainly evident, as the Nitrate supplies the most 

 beneficial ingredient contained in the stable manure 

 (Nitrogen), and in a form in which it is not dependent 

 upon soil bacteria and weather conditions to make it 

 available for the young plants when they need it most. 

 If it be necessary to add humus to the soil in the form of 



Onions. 



675 Ibs. of Nitrate of Soda 

 to the acre, in 6 applica- 

 tions. 



375 Ibs. of Nitrate of 

 Soda to the acre, in 

 4 applications. 



No Nitrate. 



stable manure it should, if possible, be applied a year in 

 advance. 



The presence of Nitrate at the outset enables the 

 plant to start off with a good healthy root growth, 

 whereby it is better able to take up later the other and 

 more complex food elements. 



If it cost $45.00 per acre for rent, ploughing, har- 

 rowing, seeding, weeding and cultivating to produce a 

 crop of onions ready to harvest, then 



A crop of 225 bushels per acre costs 20 cts. per bushel. 

 A crop of 450 bushels per acre costs 10 cts. per bushel. 

 A crop of 900 bushels per acre costs 5 cts. per bushel. 



