354 



Missouri Agricultural Report. 



It will thus be seen to lack approximately one-third its nitro- 

 gen, three-fourths its phosphorus and one-fourth its potassium. It 

 has also been shown to be slightly acid in character, indicating its 

 need of lime. 



EXPERIMENTS WITH CORN— 1906-7.— (LAMAR FIELD.) 



Soil treatment. 



Yield, 

 1906. 



Bu. 



Increase. 



Yield, 

 1907. 



Bu. 



Increase, 



Plot 1. 

 Plot 2. 

 Plot 3. 

 Plot 4. 

 Plot 5. 

 Plot 6. 



Plot 7, 



Nitrogen, phosphorus 



No soil treatment , 



Nitrogen, potassium 



Phosphorus, potassium 



Nitrogen, phosphorus, potassium 



Fertilizer in hill 1906 , 



No soil treatment, 1907 



Nitrogen, phosphorus, potassium, lime. 



40.5 

 35.5 

 38.0 

 47.5 

 44.0 

 49.5 



5.0 



51.0 



2.5 

 12.0 



8.5 

 14.0 



15.5 



25.2 

 20.6 

 32.5 

 41.3 



41.3 



18.0 

 45.0 



4.6 



11.9 

 22.0 

 23.3 



27.0 



FINANCIAL STATEMENT— 1906-7. 



BASIS FOR CALCULATIONS. 



Corn, 35 cents per bushel. 



Nitrogen— Sodium Ditrate, 1905, 50 pounds per acre. Cost $2.35 per 100 pounds. 



Nitrogen— Oowpea treatment, 1906. Cost $2.00 per acre. 



Lime— 2,000 pounds applied every eighth year. Cost 50 cents per year. 



Phosphorus— 100 pounds. Bone applied. Cost $1.40 per 100 pounds. 



Potassium— 50 pounds potassium chloride applied. Cost $2.60 per 100 pounds. 



EXPERIMENTS WITH WHEAT— 1907. 



Soil treatment. 



No soil treatment 



Cowpeas, phosphorus 



Cowpeas, potassium 



Phosphorus, potassium 



Cowpeas, phosphorus, potassium 



Cowpeas, phosphorus, potassium, lime 



Increase, 

 Bu. 



