CROPPING SYSTEMS, FERTILIZERS FOR CORN 227 



of broadcasting and drilling is sometimes used. One 

 advantage of the method is that the fertilizer applied in 

 the drill furnishes plant-food during the first growth before 

 the roots are developed and that which is sown broadcast 

 helps the later growth when the roots spread out. Inter- 

 cultural appHcations may be broadcast between the rows 

 and cultivated in, or they may be drilled in six or eight 

 inches from the row when the corn is eight to twelve 

 inches high. 



277. Fertilizer formulas for com. — The fertilizer fqr- 

 mulas here given are merely suggestive. They should 

 not be adhered to too strictly, as the needs of the soil in 

 question must receive first consideration. The ordinary 

 corn fertihzer most commonly used in the cotton-belt 

 contains 8 to 10 per cent available phosphoric acid, 1.65 

 to 2.5 per cent nitrogen and 1 to 3 per cent potash. The 

 usual application is from 150 to 400 pounds to the acre. 



For general use a mixture of acid phosphate and cotton- 

 seed meal makes a good fertilizer for corn. The relative 

 proportion of these materials will depend on the soil. 



Well-improved lands, lands that are comparatively new, 

 or well-drained bottom lands are usually benefited by acid 

 phosphate at the rate of 100 to 200 pounds to the acre. 



For soils rich in potash, Halligan reconamends the 

 following formula for corn: 



2 parts cotton-seed meal U^ j^^ ^^ ^^^ ^^^^ 

 1 p^ acid phosphate J 



The Texas Station recommends the following formula 

 for corn on worn soils: 



Acid phosphate, 14 per cent 900 pounds 



Cotton-seed meal 900 pounds ~ 



Jiainit 150 pounds 



