1018 



AGRICULTURAL INDEX 



Soil solution — Continued 



Comparative study of salt requirements in 

 solution cultures for the growth of buck- 

 wheat to the flowering stage and to ma- 

 turity. W: H. Martin. N J Ag Exp Rep 1917: 

 419-22 '18 



Comparison of salt requirements for young 

 and for mature buckwheat plants grown in 

 sand cultures. J: W. Shive. N J Ag Exp 

 Rep 1917:409-13 '18 



Conceniiaiion oi tht soi! .solution around the 

 soil particles. G: J. Bouyoucos. Soil Sci 

 11:131-8 F '21 .... 



Effect of ammonium sulfate m nutrient solu- 

 tion on the growth of soybeans in sand cul- 

 tures. M. I. Wolkoff. N J Ag Exp Rep 1917: 

 416-19 '18 



Effect of certain colloidal substances on the 

 growth of wheat seedlings. D: S. Jennings, 

 bibliog Soil Sci 7:201-15 Mr '19 



Effect of fertilizer salts treatments on the 

 composition of soil extracts. C. H. Spurway. 

 bibliog Mich Ag Exp Tech B 45:1-18 19 



Effect of season and crop growth on the 

 physical state of the soil. D. R. Hoagland 

 and J. C. Martin. J Ag Research 20:o97- 

 404 D 1 '20 . ^. 



Effect of several types of irrigation water on 

 the ph value and freezing point depression 

 of various tvpes of soils, bibliog Cal Univ 

 Pub Ag Sci v 4, no 6 141-5Sp '19 (25c) 



Effect of variation in moisture content on the 

 water-extractable matter of soils. J. C. Mar- 

 tin and A. W. Christie. J As Research 18: 

 139-43 X 1 '19 



Effect of various crops upon the water ex- 

 tract of a typical silty clay loam soil. G. 

 R. Stewart and J. C. Martin. J Ag Re- 

 search 20:663-7 Ja 15 '21 



Influence of ammonium sulfate on the ger- 

 mination and the growth of barley in sand 

 and soil cultures kept at different moisture 

 contents and at various osmotic concen- 

 trations of the soil solution. M. I. Wolkoff. 

 bibliog Soil Sci 5:421-79 Je '18: Abstract 

 Int R Sci & Prac Ag 10.no 3:264-6 Mr '19 



Influence of sand upon the concentration and 

 reaction of a nutrient solution for plants. 

 .T: W. Shive. bibliog Soil Sci 9:169-79 Mr 

 '20 



Methods of studying the concentration and 

 composition of the soil solution. F. 

 W. Parker, bibliog Soil Sci 12:209-31 S '21 



Note on the technique of solution culture ex- 

 periments with plants. D. R. Hoagland. Sci- 

 ence (Science Press, Garrison, N.Y. loc) n s 

 49:360-2 Ap 11 '19 



On nitrification; intensive nitrite formation 

 in solution. A. Bonazzi. bibliog il J Bact 4: 

 43-60 Ja '19 



Physiological balance in soil and other nu- 

 trient solutions. W: Crocker. Bot Gaz 67: 

 174-7 F '19 



Physiological balance in the .soil solution. R. 

 P. Hibbard. il Mich Ag Exp Tech B 40:1- 

 44 '17: Same. Mich Ag Bd Ilep 1918:862-901 

 '19 



Quantitative relation between soil and the 

 soil solution brought out by freezing-point 

 detei-minations. B. A. Keen. J Ag Sci 9: 

 400-15 O '19 



Rate of absorption of soil constituents at 

 successive stages of plant growth. J: S. 

 Burd. bibliog J Ag Research 18:51-72 O 

 15 '19: Abstract. Ag Gaz of Canada 7:704-5 

 Ag '20 



Relation of nutrient solution to composition 

 and reaction of cell sap of barley. D. R. 

 Hoagland. bibliog Bot Gaz 68:297-304 O '19 



Relation of the concentration and reaction of 

 the nutrient medium to the growth and ab- 

 sorption of the plant. D. R. Hoagland. 

 bibliog J Ag Research 18:73-117 O 15 "19: Ab- 

 stract. Exp Sta Record 42:24-5 Ja '20 



Relation of the soil solution to the soil ex- 

 tract. D. R. Hoagland and others, bibliog 

 J Ag Research 20:381-95 D 1 '20 



Relations existing between the soil and its 

 water content. B. A. Keen. J Ag Sci 10: 

 44-71 Ja "20 



Root absorption from solutions at minimum 

 concentrations. R. B. Harvev and R. H. 

 True. Am J Bot 5:516-21 D "18 



Soil solution. Gard Chion (Lond) 65:54 F 1 

 '19 



Soil solution as an index of the biological 

 changes in the soil. J. F. Morgan. Mich Ag 

 Exp Tech B 39:1-24 '17: Same. Mich Ag Bd 

 Rep 1918:841-60 '19 



Studies on soil solution, in the United States. 

 J. S. Burd and others. Int R Sci & Prac 

 Ag 10,no 2:140-3 F '19 

 Soil sterilization. See Soil disinfection 

 Soil surveys 



Are soils mapped under a given type name 

 by tiie Bureau of soils method closely 

 similar to one another? R. L. Pendleton, il 

 Cal Univ Pub Ag Sci v 3,no 12 3G9-49Sp "19 

 ($2> 



How can the soil survey be made more useful 

 to the farmer? T. L. Lyon, il Cornell Coun- 

 tryman 17:509-11 Je '20 



How soil surveys should be done over. Pa- 

 cific Rural Press 101:213 Ja 29 '21 



Practical value of the soil survey. H. O. 

 Buckman. il Cornell Countryman 17:453-5 

 My '20 



Soil survey and inventory. Hoard's D 57:164 

 F 14 '19 



Something of the value of soil surveys to 

 the practical farmers. O. H. Sears. Purdue 

 Ag 14:117-18 D '19 



Uses of the soil survey. C: H. Seaton. il 

 U S Ag Yearbook 1920:413-19 "21 



Alabama 



Soil survey of Barbour county, Alabama. H. 



C. Smith and others, map U S Ag Soils Bui- 

 Rep 1914:1071-1116 '19 

 Soil survey of Clay county, Alabama. A. E. 



Taylor and others, map U S Ag Soils Rep 



1915:827-63 '19 

 Soil survey of Lawrence county, Alabama. 



H. G. Lewis and J. F. Stroud, maps U S 



Ag Soils Bur Rep 1914:1155-1200 '19 

 Soil survey of Limestone county, Alabama. 



R. T. A. Burke and A. M. O'Neal, jr. map 



U S Ag Soils Bur Rep 1914:1117-1^3 19 

 Soil survey of Lowndes county, Alabama. 



L. R. Schoenmann and R. T. A. Burke. 



(Soils bur. advance sheets) 6Sp maps '18 



U S Ag; Same. U S Ag Soils Rep 1916:787- 



850 '21 

 Soil survey of Monroe county, Alabama. H. C. 



Smith and others. (Soils bur. advance 



sheets) 53p maps '18 U S Ag; Same. U S 



Ag Soils Rep 1916:851-99 '21 

 Soil survey of Pickens county, Alabama. A. 



AI. O'Neal, jr and others, map L' S Ag Soils 



Rep 1916:901-37 '21 

 Soil survey of Wilcox county, Alabama. R. 



A. Winston and N. E. Bell, map LT S Ag 



Soils Rep 1916:939-1005 '21 



Alaska 

 Report on a reconnoissance of the soils, agri- 

 culture, and other resources of the Kenai 

 peninsula region of Alaska. H. H. Bennett, 

 il maps U S Ag Soils Rep 1916:39-174 '21 

 Soil reconnoissance in Alaska, with an es- 

 • timate of the agricultural possibilities. H. 

 H. Bennett and T: D. Rice, il maps U S 

 Ag Soils Bur Rep 1914:43-236 '19 



Arkansas 



Soil survey of Columbia county, Arkansas. C. 



Lounsbury and E. P.. Ueeter. map U S Ag 



Soils Bur Rep 1914:1363-96 '19 

 Soil survey of Craighead county, Arkansas. 



E. B. Deeter and L. V. Davis, il map U S 



Ag Soils Rep 1916:1161-88 '21 

 Soil survey of Drew county, Arkansas. B. W. 



Tillman " and others. (Soils btir. advance 



sheets) 48p map '19 U S Ag 

 Soil survey of Faulkner county, Arkansas. 



E. B. Deeter and H: I. Cohn. (Soils bur. 



advance sheets) 35p maps '19 U S Ag 

 Soil survey of Hempstead county, Arkansas. 



A. E. Taylor and W. B. Cobb, map U S 

 Ag Soils Rep 1916:1189-1237 '21 



Soil survey of Howard county, Arkansas. 

 M. W. Beck and others. (Soils bur. advance 

 sheets) 48p il maps '19 U S Ag 



Soil survey of Jefferson county, Arkansas. 



B. W. Tillman and others, map U S Ag 

 Soils Rep 1915:1163-97 '19 



