212 FARMING ON FACTORY LINES 



mits of mixed animal industry, that is to say, the 

 crops grown will allow of milk, beef and mutton pro- 

 duction, and just as it is generally wise to vary 

 as much as possible the varieties of crops grown, it is 

 equally wise to keep a variety of live stock. 



This rotation is intended for a district where the 

 annual rainfall is from 28 to 35 inches. Even where 

 the rainfall is less than 28 inches and the soil is of a 

 fairly heavy nature, this rotation will be found very 

 useful. On medium or lighter soils with a rainfall of 

 less than 28 inches, more attention should be given to 

 human food production, but it is not practicable, 

 except in very exceptional cases indeed, to carry out 

 the cropping of a farm solely for direct human food 

 consumption. As is indicated above, the physical con- 

 tents of the soil must be maintained, and this is only 

 possible, either by green manuring or by combining 

 animal husbandry with human food production. 



LOW RAINFALL ROTATIONS 



The lower the annual rainfall, the greater the 

 amount of sunshine, the less the difficulty experienced 

 in the sowing and harvesting of the crops intended for 

 human consumption. It is for this reason the writer 

 holds the view that the eastern parts of these countries 

 generally and particularly the south-eastern parts, are 

 better suited for corn production than the remaining 

 areas. 



There is, however, no reason why the cultivation of 

 corn and other food intended for human consumption 

 — beans, peas and potatoes — should not be carried out 

 on a far more intensive system than usually obtains in 

 the districts referred to. This is possible by the adop- 

 tion of Continuous Cropping rotations. An example 

 of such a rotation is here given. 



