CHAPTER XXVII 



YIELD 



THE world's annual harvest of wheat at the present time reaches the 

 enormous total of more than 3500 millions of bushels, and efforts to 

 increase it are continually being made. 



Its cultivation is being extended into new country, and in districts 

 where its growth is already established there is unceasing endeavour to 

 increase the yield by improvement in the methods of cultivation, the 

 application of fertilisers, the selection of new varieties better adapted to 

 the climatic and soil conditions, and the use of superior seed. 



In the table below are given approximate figures for the total amount 

 raised annually in the various wheat-growing countries, together with the 

 average yield per acre. 



At the head of the list in point of total yield stand the United States 



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