Food for however, not uniform, and variations in return from definite 



8 applications must be expected. 



* 8 It is quite possible to have a return of $50 per acre from 



the use of $5 worth of Nitrate of Soda on crops of high value, 

 as, for example, early tomatoes, beets, cabbage, etc. This is 

 an extraordinary return for the money invested and labor in- 

 volved; still, if the value of the increased crop from its use 

 was but $10, or even $8, it should be regarded as a profitable 

 investment, since no more land and but little more capital 

 was required in order to obtain the extra $5 or $3 per acre. 

 It is the accumulation of these little extras that oftentimes 

 change an unprofitable into a profitable practice. 



PRACTICAL SUGGESTIONS AS A RESULT 



OF EXPERIMENTS. 

 I. For Crops of High Commercial Value. 



It is well understood by all market 

 Market Garden gar deners that, in their business, liberal 

 Crops. manuring must be practised, and that the 



manures used must contain an abundance of Nitrogen, that 

 may be quickly used by the plant, if rapidity of growth and 

 early maturity are to be attained. The experiments with 

 Nitrate of Soda were, therefore, planned to show in which 

 directions the benefits from its use were observed whether, 

 for example, in the larger yield of a crop of the same general 

 character, or whether, together with the larger yield, there 

 was an earlier maturity of those crops in which early matu- 

 rity is an important factor, or whether the marketable quality 

 was improved, thus returning a larger profit for the same 

 yield, or whether all of these factors were involved, and the 

 results showed that, as a whole, benefits were obtained in all 

 these directions. The more important crops of this class 

 were included in these experiments. 



In the growing of this crop, whose value 

 Early Table ma y ran g e f rom $300 to $600 per acre, 



" eets * the amount of plant-food annually applied 



is usually far in excess of that removed in the crops of any 

 year, in order to guarantee against any shortage of food 



