20 



EXPERIMENT MADE BY MR. URIAH JOHNSON. 



Trinity Station, Morgan County. 

 Soil, Red Sandy Loam ; Sub-soil, Red Clay. 

 In Mr. Johnson's two years experiments it is clearly shown by 

 the increased yield of plot No. 2 over 1 and 3, that phosphoric acid 

 is the element most deficient in his soil, but in combination results 

 are conflicting. In 1891 plot No. 9 gave 128 pounds more than 

 plot No. 6, while in 1892 plot 6 gives 352 pounds increase over plot 

 No. 9. Floats, with green cotton seed, give the best results in 

 1891, while floats with nitrate of soda give best results in 1892. 

 Further experiments are necessary to be made on this soil before 

 any conclusions can be drawn. 



o 



Pounds of Fertilizer 

 PER Acre. 



Pounds of Fertilizer 

 PER Plot. 





00 



o o 



31 



a>_o 



10 



11 



12 

 13 



14 



15 



16 



6 lbs. Nitrate Soda 



15 lbs. Acid Phosphate 



4 lbs. MuriateP otash. 



No Manure 



6 lbs. Nitrate Soda, 

 S 4 lbs. Muriate Potash. 

 ] 6 lbs. Nitrate Soda, 

 jl5 lbs. Acid Phosphate 

 j 4 lbs. Muriate Potash, 

 ]l5 lbs. Acid Phosphate 



\ No Manure 



( 6 lbs. Nitrate Soda, 

 \ 15 lbs. Acid Phosphate, 

 ( 4 lbs. Muriate Potash. 

 15 lbs. Floats ... . . . . . 



S 6 lbs. Nitrate Soda, 

 (15 lbs. Floats 



No Manure . . 



53 lbs. Green Cot. Seed 



U51bs. Floats, 



m lbs. Green Cot. Seed 



265 lbs. Stable Manure. . 



) 15 lbs. Acid Phosphate, 



) 15 lbs. Cot. Seed Meal. 



96 lbs. Nitrate Soda 



240 lbs. Acid Phosphate . 



64 lbs. Muriate Potash, , 

 No Manure 



96 lbs. Nitrate Soda, 



64 lbs. Muriate Potash . 



96 lbs. Nitrate Soda, 

 240 lbs. Acid Phosphate 



64 lbs. Muriate Potash, 



240 lbs. Acid Phosphate 



No Manure 



96 lbs. i.Jitrate Soda, 



64 lbs. Muriate Potash, 

 240 lbs. Acid Phosphate 

 240 lbs. Floats 



96 lbs. Nitrate Soda, 



240 lbs. Floats 



No Manure 



848 lbs. Green Cot. Seed 



240 lbs. Floats, 

 848 lbs. Green Cot. Seed 

 4240 lbs. Stable Manure 

 240 lbs. Acid Phosphate 

 210 lbs. Cot. Seed Me:.'.. 



16 

 34 

 14 

 12 



18 



32 



8 

 6 



8 

 8 



10 



10 



O P< 



24 

 40 

 22 

 20 



28 



62 



42 

 20 



40 



28 



384 

 640 

 352 

 320 



448 



992 



672 

 320 



640 

 44S 



40 640 



20 

 38 



34 

 44 



44 



320 

 608 



544 

 704 



704 



