Phosphates. 



Per Cent 

 Phosphoric Acid. 



Superphosphate 14 



Ground bone 22 



Bone tankage 12 



Thomas slag 16 



Barnyard manure 0.32 



Potashes. 



Per Cent Actual 

 Potash. 



Nitrate of Soda i to 3 



Muriate of potash 50 



Sulphate of potash 52 



Canada wood ashes 6 



Cotton-seed hull ashes 25 



Waste from gunpowder works 18 



Corn cob ashes 23 



Maryland marls i .25 



Peruvian guano 2.61 



Castor pumace 1.5 



Tobacco stems 6.5 



Barnyard manure 0-43 



Sodas. 



Per Cent Actual 

 Soda. 



Carbonate of Soda 50 



Sulphate of Soda 43 



Nitrate of Soda 35 



Food for 



Lbs. Phosphoric Plants 

 Acid Per Ton. ■ 



280 ^47 



440 

 240 

 320 

 6.40 



Lbs. Potash 



Per Ton. 



20 to 60 



1,000 



1,040 



120 



400 



360 



460 



25 



52.2 



30 



130 



8.6 



Lbs. Soda 

 Per Ton. 



1,000 



860 



700 



SOUTH CAROLINA AGRICULTURAL 

 EXPERIMENT STATION. 



From Bulletin No. 56. 



/. Comparison of Varieties. 



II. Quantity of Seed per Acre. 



III. Experiment with Nitrogen. 



Wheat. 



IV. Home Manures. 



V. Commercial Fertilizers. 



VI. Tillage. 



Page 5. 



If wheat is sown upon land deficient in 

 organic matter, it is wise to use a complete 

 fertilizer, containing Nitrogen, phosphoric acid and potash. 



Fertilizers. 



