WHEAT 103 



3. (a) A crop for feeding farm animals, the 

 plant food of which is largely returned to the soil 

 in manure; (b) a crop for green manure in case 

 livestock raising is not a part of the farming plan. 



4. An intertilled crop for destroying weeds and 

 improving the physical and sanitary conditions 

 of the soil. 



The arrangement or order of crops in a rotation 

 system should follow as far as possible these 

 rules: 



1. To alternate shallow and deep rooted crops. 



2. Crops which furnish organic matter should 

 alternate with those which favor its rapid decom- 

 position. 



3. Use at least one leguminous crop in the 

 rotation in order to increase the supply of plant 

 food in the soil. 



4. Crops in rotation should vary in time of 

 planting, cultivation, and harvest season as much 

 as possible, and in amount and kind of their 

 plant food requirements. 



5. (a) Commercial fertilizer should be applied 

 to the special crop which will be most benefited 

 by its use, such as wheat, clover, or alfalfa, (b) 

 Manure should be applied to the hardy, more 

 vigorous growing crops, such as corn and forage 

 crops or grasses and clover which should precede 

 wheat. 



The kinds of crops in the rotation will depend 

 upon the climatic and soil conditions, the market 

 requirements and the kind of farming. In the 

 more humid sections ideal rotation systems are 

 not difficult to plan and execute. The following 



