153 



1 Ionic mixtures, chapter dh, i^O; 

 calculations of percentages and 

 amounts in fertilizers, 131, 132; 

 definitions, 126; does away with 

 the purchase of unnecessary con- 

 stituents, 128; manufacturers al- 

 low credit, 127 ; manufacturers 

 claims, 126; mechanical condi- 

 tion of factory and home mixed 

 fertilizers, 127; mixed fertiliz- 

 ers compounded for the crop, 

 127; mixed fertilizers more easi- 

 ly purchased, 127; plant food 

 obtained at a lower price, 127; 

 reasons for and against the use 

 of, 126. 



Horn and hoof meal, steamed, 54; 

 untreated, 61. 



Horse manure, 37 : analysis of, 39. 



Humus, 13. 



Hydrochloric acid, i. 



Hydrogen, i. 



Hygroscopic moisture, 6. 



Inorganic matter, 13. 



Iron, 4. 



Iron sulphate, 102. 



Kainit, 91. 



King crab, 55. 



Leather meal; dissolved, 60; raw, 

 60; treated, 60. 



Leaves for bedding, 36. 



Lime, 104 ; amount to apply, 106 ; 

 carbonate of, 104; decreases 

 many fungus diseases, 107 ; form 

 to use, 105; forms of, 104; how 

 to find out when soils need lime, 

 104; how to apply, 105; mechani- 

 cal action of, 107 : phosphates 

 of, 81. 



Lime-kiln ashes, 100. 



Linseed meal, old and new process, 

 51- 



Lobster shells, 100. 



Afagnesium, 5 ; carbonate of, 103 ; sul- 

 phate of, 102. 



.Manganese, 5; salts of, 103. 



-Manures, pulverized, 100; see farm 

 manure. 



Marl, 99. 



Meat meal, 54. 



Miscellaneous fertilizer materials, 

 chapter on, 98. 



Mora meal, 61. 



Muck, 99. 



Muriate of potash, 91. 



Mussels, 100. 



Xitrate of soda, 58 ; composition and 

 properties of, 58. 



Nitrification, 22. 



Nitrogen, 2; amounts for crops, ta- 

 ble of, 143 ; excessive nitrogen in- 

 vites disease, 68 ; for large crops 

 and building up the soil, 66; for 

 soils well supplied and long grow- 

 ing crops, 66; forms of, 48; 

 functions of, 67; how lost from 

 the soil, 25, 26, 27 ; organisms 

 that gather, 23 ; utilization of 

 from air, 58. 



Nitrogenous materials, high grade, 

 chapter on, 48 ; low grade, chap- 

 ter on, 60 ; availability of, 6^ ; 

 field experiments with, 63 ; for 

 immediate results, 65 ; kinds to 

 use, 65 ; use of low grade in- 

 creasing. 64; value of low grade, 

 64. 



Odorless phosphate, see basic slag. 



One crop farming, effect on fertili- 

 ty, 28. 



Organic matter, 13. 



Organic nitrogen, 48, 49. 



Oxygen, 2. 



Peat, 9<) : for bedding, 36 ; absorption 

 of, 37 : dried, 6:^. 



Phosphates, chapter on, 70 ; availa- 

 bility of, 78 ; available deposits 

 of, y^i ; classification of, 77 ; how 

 they occur, 70; influence of soil 

 on availability of, 78; Florida 



