Phosphatic Guano l68 



Phosphoric Acid and Potash Differ from Nitrogen 1 16 



Phosphoric Acid, How Nitrate May be Aided by 102 



Pioneer Farmers' Wasteful Methods 63 



Plan for Top-Dressing Experiments 230 



Plant Food Needs of Crops 105 



Position of Nitrate in Modern Agriculture 63 



Potashes 4» H? 



Potashes, Phosphates 100, 147 



Potash and Phosphoric Acid Differ From Nitrogen 116 



Potatoes ^9,154 



Potatoes, Sweet 81 



Potatoes, How to Apply to 20 



Potatoes, Applying Fertilizers for 24 



Practical Conclusions 76 



Practical Suggestions as a Result of Experiments, i. For Crops of 



High Commercial Value 121 



Pre-digested Ammoniate, Nitrate a 99 



Price of Farm Products, Rise in 142 



Principal Elements, Nitrated Ammonia, Phosphoric Acid, Potash. ... 98 



Probable Stability of Farm Values 143 



Profit, Margin of 142 



Profits from Use of Fertilizers 120 



Profitable and Economical Practice 76 



Profitable Fertilization of Grapes. Summary of Experiments of Prof. 

 Paul Wagner, Director of Darmstadt Agricultural Experiment 



Station, Darmstadt, Germany 94 



Profitable Onion Cultivation 33 



Profitable Use of Nitrates, How Careful Cultivation May Aid in the. . 78 



Pulverizer and Harrow, The Use of the 37 



Purdue University, Indiana Agricultural Experiment Station, Lafay- 

 ette, Ind., C. R. Plumb, Director. Bulletin No. 84.) Growing 



Lettuce With Chemical Fertilizers. By Prof. William Stuart. ... 149 



Quantity (Equivalent) of Nitrate Food 105 



Quantities Required and Time to Apply 33 



Raspberries, Currants, Gooseberries 23 



Raw Materials, Mixing 162 



Ready for Market Sixteen Days Earlier, Table Beets Grown on 



Nitrate 43 



Relative Value of Different Foods for Stock 206 



Results (Good) Due to Nitrate 143 



Results in New York 219 



Results of Nitrate on Money Crops 104 



Results of Saving Small Amounts of Money 207 



Results on Cotton Grown in Lower Egyp t 212 



Result, Slight Added Cost per Acre and per Ton of Fertilizer.- 143 



Results in an Unfavorable Season with Low Prices for Products .... 41 



Returns on Celery Extraordinary ; 45 



Rise in Price of Farm Products 142 



