786 



AGRICULTURAL INDEX 



N itrogen — Continued 



Xitrog-en from the air. J. G. Hutton. S D Ag 



Exp Soil Survey C 1 4p '20 

 Nitrogen in the rainwater at Ithaca, New 



York. B. D. Wilson, bibliog Soil Sci 11:101- 



10 F '21 

 Nitrogen losses in urine. F. E. Bear and J. 



R. Royston. bibliog Am Soc Agron J 11: 



319-26 N '19 

 Nitrogen metabolism of two-year-old steers. 



S. Bull and H. S. Grindley. J Ag Research 



18:241-54 D 1 '19 

 Nitrogen, phosphorus, and potash pointers. E. 



Butler. Prog F 36:215 F 19 '21 

 Nitrosjen problem. N. E. Winters. Farming 



19:245 F; 19 Je '21 

 Nitrogen products committee; final report. 



(London: Min.* Munitions War, VI-|-357 '19; 



Abstracts. Chem. Trade J. and Chem. Eng., 



66,nos. 1705:91-7; 1706:125-30 '20). Exp Sta 



Record 43,no 3:218-19 '20 

 Nitrogen relations of certain crop plants 



when grown alone and in association. R. C. 



Wright. 11 Am Soc Agron J 11:49-66 F '19 

 Nitrogen supply for fertilizer. B. E. Dyer. 



O .ludd Farmer 66:537 Ap 5 '19 

 Nitrogen — the cropstarter.il Am Fert 50:40-2 



Ja 4 '19 

 Nitrogenous fertilizers: their use in In- 

 dia. C. M. Hutchinson. Ag J of India 14: 



203-14 Ap '19 

 On the phosphorous and nitrogen contents of 



the water in which vegetable food products 



are boiled. G. Maroni and E. Savini. Int R 



Sci & Prac Ag 10, no 5:506-11 My -19 

 Possible source of cheap nitrogen. F: M. 



Reed. Cal Cultivator 54:978 .Je 19 '20 

 Relation of carbohydrates and nitrogen to 



the behavior of apple spurs. E. M. Harvey 



and A. E. Murneek. bibliog il Ore Ag Exp 



B 176:1-47 '21 

 Relative availability of nitrate nitrogen and 



commercial organic nitrogen. A. W. Blair. 



Am Fert 52:116+ Mr 13 '20 

 Report on nitrogen. I. K. Phelps. Assn OfRc 



Ag Chem J 5:104-5 Ag '21 

 La solution du probleme de I'Azote. H.-M. 



Nagant. Sci Ag 1:184-5, 230-3, 274-7; 2:33-5 



Ap-Je, S '21 

 Studies in the metabolism of actinomycetes; 



nitrogen metabolism. S. A. Waksman. bib- 

 liog J Bact 51:1-30 Ja '20 

 Studies on the nitrogen content of liquid 



manure. E. Blanck. (Landw. Vers. Sta., 



Pl.nos. 5-6:253-69, 271-90, 309-46 '18). Exp 



Sta Record 41:721-2 D '19 

 Symposium on determination of nitrogen in 



fertilizers. P. F. Trowbridge. Assn Offlc 



Ag Chem J 3:217-18 N '19 

 Taxing the air for increased food produc- 

 tion. J. G. Lipman. Am Soc Agron J 11: 



333-41 D '19; Same cond. Coop Manager 



& F 9:75 Ja '20 

 They do the work; how nodule bacteria in- 

 crease the yield of soy beans and raise 



the per cent as well as the total protein 



content of the forage. E. B. Fred. il 



Hoard's T> 59:171 F 13 '20 

 Use of nitrogen — where and how much. C. 



G. Williams, il Ohio F 145:869 My 22 '20 

 La valeur aliments azotes et les vitamines. 



R. Gouin. J Ag Pratique 33:254-7 Ap 8 '20 

 World's resources of nitrogen. C. G. Gilbert. 



Am Fert 52:118+ Mr 27 '20 



See also' Soils — Nitrogen content: Spinach 



— Nitrogen content 



Analysis 



Boric acid for neutralizing ammonia in ni- 

 trogen determinations. H. D. Spears. Assn 

 Offlc Ag Chem J 5:105-8 Ag '21 



Investigations of the Kjeldahl method for 

 determination of nitrogen. I. K. Phelps and 

 H. W. Daudt. Assn Offlc Ag Chem J 3:218- 

 20, 306-15 N '19-F '20 



Investigation of the Kjeldahl method for 

 determining mining nitrogen. I. K. Phelps 

 and H. W. Daudt. Assn Offlc Ag Chem 

 J 4:72-6 Ag '20 



Kjeldahl nitrogen method and its modifica- 

 tions. A. E. Paul and E. H. Berry. Assn 

 Offlc Ag Chem J 5:108-32 Ag '21 



Notes on use of potassium permanganate in 



determinmg nitrogen by the Kjeldahl 



method. W: Frear and others. Assn Offlc 



Ag Chem J 3:220-4 N '19 

 Report on nitrogen. R. N. Brackett and H. 



L). Haskins. Assn Offlc Ag Chem J 3:207- 



17 N '19 

 Report on nitrogen. H. D. Haskins. Assn 



Offlc Ag Chem J 3:289-99 F '20 

 Report on nitrogen. H. D. Haskins and I. 



K. Phelps. Assn Offlc Ag Chem J 4:66-9 Ag 



'20 

 Report on nitrogen determination. R. B. 



Deemer. Assn Offlc Ag Chem J 3:299-304 



F '20. 

 Report on special study of the Kjeldahl 



niethod. H. W. Daudt. Assn OHic Ag Chem 



J 4:366-73 F '21 



Fixation 



Atmospheric nitrogen for fertilizers. R. O. 

 E. Davis. U S Ag Yearbook 1919:115-21 '20; 

 Same. Separate 803 



Big German nitrogen factory. Am Fert 51:98 

 S 27 '19 



British air nitrate po.sition. Am Fert 51:108 + 

 S 27 '19 



Claude air nitrogen process. Am Fert 53:128 

 S 11 '20 



Electrical fixation of aerial nitrogen. J. 

 Oichiston. J Ag New Zealand 18:200-2 Ap 

 '19 



Fixation of atmospheric nitrogen. F. H. 

 Campbell. Sci & Industry (Danks' bldg., 

 Bourke st, Melbourne, Australia Is) 1:495-9 

 D '19 



Fixation of atmospheric nitrogen by inocu- 

 lated soybeans. E. B. Fred, il Soil Sci 

 11:469-77 Je '21 



Fixation of free nitrogen by green plants; 

 preliminary note. F. B. Wann. Science (Sci- 

 ence Press, Garrison, N.Y. 15c) n s 51:247-8 

 Mr 5 '20 



Fixation of free nitrogen by green plants. F. 

 B. Wann. bibliog il Am J Bot 8:1-29 Ja '21 



Fixation of nitrogen and oxidation of ammo- 

 nia. Am P'ert 51:118+ S 27 '19 



Fixation of nitrogen in Colorado soils. W: 

 P. Headden. Colo Ag Exp B 258:1-48 '21 



Inoculated legirmes as nitrogenous fertilizers. 

 P. E. Brown and J. H. StalUngs. bibliog 

 Soil Sci 12:365-407 N '21 



Investigations in fixation of nitrogen to con- 

 tinue. Weeklv N L 9:3 Ag 3 '21; Same. Am 

 Fert 55:52+ S 24 '21 



Nitrogen fixation by cowpeas and nodule 

 bacteria. A. L. Whiting and W. R. Schoon- 

 over. Soil Sci 10:411-20 D '20 



Nitrogen fixation by root nodule bacteria. 

 Gard Chron (Lond) 65:140 Mr 22 '19 



Nitrogen fixation bv the Haber method. C. 

 H. Jones. Am Fert 52:120+ Je 19 '20 



Nitrogen fixation in Indian soils. C. M. 

 Hutchinson. Ag J of India 14:215-19 Ap '19 



Nitrogen fixation in manure. Ag Gaz of 

 Canada 6:592 Je '19 



Nitrogen from the air. Ag News 19:119 Ap 

 17 '20 



Nitrogen from the air, and the British 

 government. Science (Science Press, Gar- 

 rison, N.Y. 15c) n s 51:323-4 Mr 26 *20 



Nitrogen: its fixation, its uses in peace and 

 war. G. Jones. Quar J Econ (Randall Hall, 

 Cambridge, Mass. $5 per yr.) 34:391-431 My 

 '20 



Presant condition of nitrogen-fixation as re- 

 gards fertilisers. A. W. "WTiite. Int R Sci & 

 Prac Ag 10, no 7:835-40 Jl '19 



Present status of nitrogen fixation. A. H. 

 White. Ag Gaz of Canada 7:277-80 Mr '20 



Production of nitrogenous compounds syn- 

 thetically in the United States and Ger- 

 many. R. E. McConnell. Am Fert 51:112 + 

 S 13 '19 



Studies on azotobacter chroococcum Beij. A. 

 Bonazzi. bibliog J Bact 6:331-69 My '21 

 See also Nitrification; Soil inoculation 

 Nitrogen In soils. See Nitrification; Soils — Ni- 

 trogen content 

 NItrolim. See Calcium cyanamide as fertilizer 



