Corn, just like chickens, animals, and people, must have good food to be healthy. If 

 your soil does not contain the right kind of food, you will probably not be able to 

 raise healthy corn. This condition is called soil deficiency and can be remedied by 

 the mechanical application of plant food. 



Our State University has made specific recommendations regarding the applica- 

 tion of plant foods and your farm adviser can help you determine what and how 

 much is needed in your case. 



Phosphate deficient soils require varying amounts of phosphate 

 fertilizers in order to produce high yields of crops. The amounts 

 needed depend upon the degree of deficiency as determined by the 

 results obtained from the soil tests. 



According to the recommendations of the Univcrsity.of Illinois, 

 a soil testing LOW in phosphorus requires: 



1* 400 to 500 lbs. of 20' , superphosphate per acre for the com- 

 mon Illinois rotations. This is sufficient to supply crop require- 

 ments for 4 years. 



or 



2. 1000-1500 pounds of 32* , rock phosphate. This application 

 is sufficient for 8 to 10 years. 



Rock phosphate is usually applied by means of a regular phos- 

 phate spreader ahead of the clover seeding, although it can be 

 applied during most months of the year. 



Superphosphate can be applied by drilling with small grain, by 

 hill dropping with corn, or by broadcasting. 



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POTASH 



Tests made in the county Farm Bureau soil testing laboratories show 

 that many soils require potash if maximum crop production is to be 

 achieved. Potash is immediately available for use by crops. 



Muriate of potash can be either broadcast or drilled through a fertilizer 

 attachment on the grain drill ahead of small grain and clover. It can also 

 t>e applied after the oats and clover are up; it could be put on the clover 

 after the oats and wheat arc cut. 



Muriate of potash can be hill dropped for corn and drilled alongside 

 soybean seed. 



Precautions to Observe 



1. Safe application limits per acre are: 



(a) Not over 65 pounds hill dropped for corn. 



(b) Not over 80 pounds drilled with small grains. 



(c) Not over 100 pounds drilled alongside but not in contact with 

 soybean seed. 



(d) Not over 300 pounds broadcast and disked for all crops. 



2. Do not spread muriate of potash on growing crops when the leaves 

 :ire wet. There is danger of burning the Jeaves. 



3* Clean all equipment after use to avoid damage from potash. 



/ Plant Food Distributor 



The Farm Bureau Service Company plant food distribution service is less than two 

 years old. In these years the need for plant food materials has been greater than our 

 ability to supply the demand. In the current years we have contracts with suppliers 

 that, when fulfilled, will reach a grand total of 120,000 tons. This compares to 36,350 

 tons in 1945. Despite this tremendous increase in tonnage, there will still be some 

 patrons who will be unable to secure sufficient plant foods for their needs. The patience 

 and understanding of our members is greatly appreciated. We hope that the day is 

 not far off when our supply will be adequate for all. 



ILLINOIS FARM SUPPLY COMPANY 



608 SOUTH DEARBORN STREET CHICAGO 5, ILLINOIS 



