1014 



AGRICULTURAL INDEX 



Soil fertility — Continued 



P'hosphorus, potassium, and nitrogen content 

 of the waters of the intermountain region. 

 J. E. Greaves and C. T. Hirst. J Industrial 



& Eng Chemistry (Am. Chemical Soc, 

 Easton, Pa. 60c) 11:451-3 My '19 

 Plant food removed from the soil bv crops. 



\V. H. Stevenson. Wallaces' F 43:1862-3 D 



20 'IS 

 Power farming in relation to soil fertility. 



W. B. Jones. Power F 30:5-6 Je '21 

 Present and future farm development. F. E. 



Bear. Am Fert 54:72-H Ja 1 '21 

 Proposed method for the estimation of total 



calcium in soils and the significance of 



this element in soil fertilitv. O. M. Sliedd. 



bibliog Soil Sci 10:1-14 Jl '20 

 Protecting the greatest base of supplies. C. 



G. Hopiiins. Ill Farmers' Inst Rep 1918:21- 



31 

 Putting new life into the soil. F. E. Bear. 



Ohio F 147:363 Mr 12 '21 

 Radioactivity and soil fertility; some im- 

 portant researches by Professor Gabriel 



Petit, of Alfort, France. Sci Am Monthly 



(233 Broadway, N.Y. 60c) 3:415-17 My '21 

 La renovacion del terreno por medio de si- 



embras intermediarias de plantas legum- 



inosas. E. E. Barker. Porto Rico Insular 



Exp C 31:1-16 '20 

 Resoiling poor land. H. W. Warner. Wal- 

 laces' F 45:2377 O 8 '20 

 Restoring fertility. J: Day. Prac F 115:221 



Je 15 '19 

 Rich land and how to make it. E. F. Cau- 



then. Prog F 34:1211 Jl 26 '19 

 Ross-Spillman fertilizer theorv. C: E. Thorne. 



Hoard's D 58:877 N 28 '19 

 Secret of building up the soil. J. C. Sibley. 



il Jersey B 40:1247-1- My 25 '21 

 Soil and crop improvement. Farming 19:328- 



30 Ap '21 

 Soil depletion on dairy farms. F. L. Mus- 



bach. plans Dairy F 18:324 Ap 1 '20 

 Soil fertility. F. Bruce, il Am Thresherman 



22:94- Ap '20 

 Soil fertility. T. Butler. Prog F 35:1639 O 9 



'20 

 Soil fertility. M. M. McCool and others, il 



Mich Ag Exp Pop B 290:1-39 '20 

 Soil fertility and crop quality. J: F. Lvnian. 



Ohio Ag Ext Timely Soil Topics 42 4p '21 

 Soil fertility and lime. L: Hurtubise. J Ag 



(Quebec) 25:60 N '21 

 Soil fertility and the dairv cow. A. Agee. il 



Hoard's D 58:1030 D 19 '19 

 Soil fertility for the home vegetable garden. 



L. M. Montgomery. Ohio Ag Ext Timely Soil 



Topics 23:1-4 '20 

 Soil fertility in the greenhouse. J. H. Beattie 



Am Flor 57:361-2 S 3 '21 

 Soil fertility must be replaced. Cal Culti- 

 vator 54:593 Ap 3 '20 

 Soil fertility questions. A. Agee. Nat Stock & 



F 44:548 Ag 7 '20 

 Soil fertility talks. W. W. Weir, il Hoard's 



D 58:1155, 1213: 59:6, 61, 248. 382, 552, 741-i-, 



872, 926 Ja 9-30, F 20, M'r 5. 19, Ap 9, 



23-30 '20 

 Soil fertility the farmer's greatest problem, 



no matter where located. T. Butler. Prog 



F 34:1559 O 4 '19 

 Soil improvement for maize. H. Wenholz. Ag 



Gaz of New South Wales 31:111-16 F '20 

 Soil making. E. J. Russell. Royal Hort Soc 



J 44:1-12 Mv '19 

 Soil manasrement and plant food. (B. 25) 17p 



n.d. Southern fertilizer assn., Soil improve- 

 ment com.. Atlanta, Ga. 

 Soils and how to improve them. D. L. 



Mackintosh. Gard Chron Am 25:612-13 Je 



'21 

 Staying the progress of old age. O. Crooker. il 



Hoard's D 59:1425 Jl 2 '20 

 Stockman's relation to soil fertility. I. J. 



Mathews. Breeder's Gaz 76:94 Jl 17 '19 

 StOD soil washing. A. L. French. Prog F 34: 



120n Jl 26 '19 

 Studies on soil reaction. E. A. Fisher, bib- 

 liog J Ag Sci 11:19-65 Ja '21 

 Substituting chemicals for cows. Rural N T 



80:104 Ja 22 '21 

 Successful soil building. D. Prowant. Prac F 



117:82 Mr 15 '21 



Sulphur and soil fertility. R. Stewart. Wal- 

 laces' P 45:1652 Je 25 '20 



Sweet clover and soil restoration. R. M. 

 Hanna. Rural N Y 80:619 Ap 23 '21 



Taxing the air crops. W. A. Albrecht. il 

 Successful p 19:134- Ap '20 



Teaching soil fertility. G. A. Bricker. Ohio 

 F 143:389, 454 Mr 8-15 '19 



Treatment of unproductive soils. A. E. Vin- 

 son. Sugar 23:564-6 O '21 



What does vour soil need? H. W. Warner. 

 Wallaces' F 45:2036 Ag 27 '20 



What is fertility? T. B. Hutcheson. Jersey 

 B 38:2434 N 26 '19 



Whetp the system breaks down. O. Crooker. 

 il Hoard's D 58:113 Ag 15 '19 



Wh.v soils need organic matter. H. W. Bald- 

 win. Dairy F 18:994 D 15 *20 



See aJso Ammonificatlon; Fertilizers; 

 Green manuring; Humus; Legumes; Man- 

 ures; Nitrification; Rotation of crops; 

 Sulfofication 



Arizona 

 Save the fertility. S. P. Clark. Cal Culti- 

 vator 54:442 Mr 13 '20 



Arkansas 



Notable example of soil building. E. Butler, 

 il Prog F 35:1090 Je 5 '20 



Outline of a soil fertility program for Arkan- 

 sas. B. Knapp and others. Ark Ag Ext 

 C 94:1-4 '20 



Soil improvement campaign in Arkansas. C. 

 A. Whittle. Am Fert 53:65-6 N 6 '20 



Soil management and fertilization. M. Nel- 

 son and W. H. Sachs. Ark Ag Ext C 97:1- 

 25 '20 



Australia 

 Loss of fertility in the hundred of Booleroo. 

 A. J. Perkins. J Dept Ag S Australia 22: 

 795-7 :My '19 



California 

 Cultural methods of light soils. H. F. Pressv. 



il Cal Citrograph 5:315 Ag '20 

 Effect of continuous cropping upon the major 



soil nutrients. G. R. Stewart. Soil Sci 11: 



321-3 Ap '21; Same. Tropical Ag 56:391-3 Je 



'21 



Canada 



Conservation of soil fertility and soil fibre; 

 report of conference held at Winnipeg. 

 Manitoba. July 14-16, 1920. 89p '20 Canada 

 Comm. of conservation. Ottawa 



Fundamental principles oif soil fertility. R. 

 Hansen. (Tn Conservation of soil fertility, 

 p. 69-74) '20 Canada Comm. of conserva- 

 tion, Ottawa 



Soil conservation and western crop produc- 

 tion. J. H. Grisdale. (In Conservation of 

 soil fertility, p. 11-23) '20 Canada Comm. 

 of conservation, Ottawa 



Soil-fertilitv conference. Farmer's Advocate 

 55:1181 Je 24 '20 



Connecticut 



Fertility problems in growing Connecticut 

 valley wrapper tobacco. E. H. Jenkins. Am 

 Fert 53:71-64- Jl 31 '20 



Our driest lands the richest. Dakota F 40: 

 783 Ap 1 '20 



Corn belt 

 Key that unlocks soil fertilitv. H. R. O'Brien, 

 il Country Gent 85:54- Jl 3 '20 



France 

 Le rfiveil de la terre arable. A. Lumiere. J 

 Ag Pratique 34:415 N 18 '20; Discussion. M. 

 Ringelmann. 35:132-4 F 19 '21 



Great Britain 



Influence of mines upon land and livestock 

 in Cardiganshire. J. .1. Griffith, il map J Ag 

 Sci 9:366-95 O '19 



Greece 

 Greece: the agricultural antique. G: Bouyou- 

 cos. il Breeder's Gaz 77:1317 My 13 '20 



