AGRICULTURAL INDEX 



707 



Phosphates — Continued 



Production of pliosphate rock in 1916. W. C. 

 Phalen. (/h Am. fertilizer hdbk., 1917, p. 

 C2-C8) map $1 '17 Ware bros. co., 1010 Arch 

 St., Philadelphia 



Production of phosphates in Tonkin. L. P. 

 Biiggs. Am Pert 14:55 .le 24 '16 



Purchasing ground phosphate rock. \V. A. 

 Worsham, jr. Ga Ag Coll (Ext) C 42:1-4 '17 



Raw phosphate. W. W. Reynolds. Nat Stock 

 & F 41:909 D 22 '17 



Raw phosphate rock as a fertilizer. C. E. 

 Thorne. Ohio Ag Exp B 305:229-77 '16 



Raw phosphate rock in Indiana. Am Pert 46: 

 33-5 P 17 '17 



Raw rock phosphate vs. acid phosphate. Wal- 

 laces' F 41:525 Mr 31 '16 



Raw rock phosphate vs. acid phosphate. C. E. 

 Thorne. Ohio Ag Exp B v 1:188-92 Je '16 



Relative value of acid phosphate and rock 

 phosphate. J. C. Pridmore. (C. 11) 8p n. 

 d. Soil improvement com.. Southern fertil- 

 izer assn., Atlanta, Ga. 



Report of phosphate in Alberta. Am Fert 44: 

 44 My 13 '16 



Report on the phosphate fields of South 

 Carolina. U S Ag B 18:1-11 '15 



Research on superphosphates. U. Pratolongo. 

 Int R Sci & Prac Ag 7, no 11:1596-8 N '16 



Residual effect of superphosphate. G: S. 

 Gordon. 11 J Dept Ag Victoria 16:610-17 O 

 •18 



Results of experiments, 1915; light and heavy 

 dressings of superphosphate. A. E. V. Rich- 

 ardson, il J Dept Ag Victoria 14:288-95 

 My '16 



Rock and basic phosphate. J. F. Duggar. 

 Prog F 31:468 Ap 1 '16 



Rock phosphate. J: R. Fain. Ga Ag Coll 

 (Ext) C 20:1-4 '16 



Rock phosphate and acid phosphate compared. 

 T. Butler. Prog F 31:247 F 19 '16 



Russian sugar and the superphosphate difR- 

 culty. Am Fert 46:44-f- F 17 '17 



Shall we use raw phosphate rock? Rural 

 N Y 76:1104 S 22 '17 



Simple tests for phosphates. W. B. Hicks. 

 Am Fert 45:28 O 28 '16 



Six years with phosphate. O Judd Fa.rmer 60: 

 14 Mr 25 '16 



Sixteen percent acid phosphate. M. A. Bach- 

 tell, il Ohio Ag Ext B v 13, no 4 15p '17-'18 



Soil bacteria and phosphates. C. G. Hopkins 

 and A. L. Whiting. Ill Ag Exp B 190:395- 

 406 '16 



Soil fermentation and feeding of crops; the use 

 of sulphur and raw phosphate. J. G. Lip- 

 man. Rural N Y 75:1361, 1388 O 28-N 4 '16 



Solubility of calcium p'nosphates in citric acid. 

 A. A. Ramsay. J Ag Sci 8:277-98 Je '17 



Solubility of fluorspar slag and mineral phos- 

 phates in citric acid. G. S. Robertson. Int R 

 Sci & Prac Ag 7, no 7:948-50 Jl '16 



Study of the toxic influence of the phosphate 

 salts on soybean seedlings. J: W. Shive. 

 X .J Ag Exp Rep 1916:449-57 '17 



Sulfur oxidation in soils and its effect on the 

 availability of mineral phosphates. J. G. 

 Lipman and others, bibliog Soil Sci 2:499- 

 538 D '16 



Tetraphosphates in rice lands. Int R Sci & 

 Prac Ag 7,no 1:64 Ja '16 



Top-dressing lucerne with superphosphate. 

 Ag Gaz of New South Wales 28:461-2 JI '17 



Top-dressing lucerne with superphosphate. 

 Ag Gaz of New South Wales 29:468-70 Jl '18 



Toxicity of monobasic phosphates toward 

 soybeans grown in soil- and solution-cul- 

 tures. J: W. Shive. bibliog Soil Sci 5:87-122 

 F '18 



Trials of Wellington rock phosphate. Ag Gaz 

 of New South Wales 27:261-2 Ap '16 



Trials on grass land with open-hearth basic 

 slag and rock phosphates. G. S. Robertson. 

 J Bd Ag 24:1077-86 Ja '18 



Utilization of nitre cake in the manufacture 

 of superphosphate. F. T. Shutt and O. E. 

 Wright. Ag Gaz of Canada 5:1040-5 N '18 



Utilization of phosphates by agricultural 

 crops, including a new theory regarding the 

 feeding of plants. E. Truog. il Wis Ag Exp 

 Research B 41:1-50 '16 



Value of phosphates on Indiana soils. A. T. 

 Wiancko and S. C. Jones, il Ind Ag Exp B 

 210:1-16 '18 



Value of Thomas slag phosphate for neutral- 

 izing soil as well as for supplying phos- 

 phorus. B. L. Hartwell and others, il R I 

 Ag Exp B 171:1-34 '17 



Vegetation experiments on the availability 

 of treated phosphates. J. C. Lipman and 

 H. C. McLean, il Soil Sci 4:337-42 O '17 



Walsh bill would turn over to private monop- 

 oly the publicly owned phosphate resources 

 of the United States. Nonpartisan Leader 

 (Box 575, St Paul, Minn. $2.50 per yr.) 5: 

 10-11 N 22 '17 



When one dollar brings hoine seven. L. L. 

 Rummell. il Country Gent 83:10 Ja 19 '18 



When to use rock phosphate. C: A. Whittle. 

 Prog F 31:77 Ja 15 '16 



See also Ammonium phosphate; Phos- 

 phoric acid; Soils — Phosphorus content 



Statistics 



International movement of fertilisers and 

 chemical pi-oducts useful to agriculture, (no. 

 8) p 8-21 My '18 Int. inst. of ag., Rome 



International movement of fertilisers; phos- 

 phatic fertilisers. Int Crop Report and Ag 

 Statistics (Int. inst. of ag., Rome) 7th 

 year, no 9 p 621-32 S '16 



Phosphate industry of Florida during 1917. E. 

 H. Sellards. Am Fert 48:30 My 25 '18 



Phosphate rock shipments. Am Fert 48:33 F 

 2; 49:45 O 26 '18 

 Phosphoric acid 



Availability of phosphoric acid in rock phos- 

 phate. Tex Ag Exp B 212:1-40 '17 



Available phosphoric acid. Rural N Y 76:193 

 F 10 '17 



Citric solubility of basic slag. J Bd Ag 23: 

 540-9 S '16 



Conversion of soluble phosphoric acid into in- 

 soluble phosphoric acid in the soil under the 

 influence of physical, chemical and biolog- 

 ical factors. S. Skalkij. Int R Sci & Prac Ag 

 7, no 8:1084-6 Ag '16 



Determination of phosphoric acid. H. D. Has- 

 kins; E. O. Thomas. Am Fert 48:68-|- My 11 

 '18 



Fertilizer needs of the United States. H. J. 

 Wheeler. Am Fert 48:56 Mr 30 '18 



French fertilizer requirements, possibilities 

 and resources. Am Fert 48:62-f- Je 8 '18 



Function of phosphoric acid. Am Fert 48:39 

 Je 22 '18 



Influence of the presence of calcium car- 

 bonate on the determination of available 

 phosphoric acid in soils by Dyer's method. 

 Jatindra Nath Sen. Ag J of India 12:258-65 

 Ap '17 



Note on the loss of phosphoric acid during 

 fusion with ammonium fluoride. W: A. 

 Davis and J. A. Prescott. J Ag Sci 8:136-8 

 S '16 



Organic matter of the soil: some data on 

 humus-phosphoric acid. R. A. Gortner and 

 W: M. Shaw, bibliog Soil Sci 3:99-111 P '17 



Organic phosphoric acid of rice. A. R. Thomp- 

 son. bil)liog J Ag Research 3:425-30 F '15 



Pot experiments to determine primarily the 

 availability of phosphoric acid in Thomas 

 slag phosphates in comparison with other 

 phosphates. W. B. Ellett and A. A. Ingham, 

 il Va Ag Exp Tech B 16:118-36 '17; Same. 

 Va Ag Exp Rep 1915-1916:118-36 '17 



Preparation of organic material for the deter- 

 mination of phosphoric acid and potash in 

 aliquots of the same solution. R. M. West. 

 Assn Offic Ag Chem J 3:99-101 My '17 



Production and fertilizer value of citric- 

 soluble phosphoric acid and potash. W: H. 

 Waggaman. U S Ag B 143:1-12 '14 



Report of the committee on availability of 



phosphoric acid in basic slag. Assn OfRc Ag 



Chem J 3:104-5 My '17 

 Report on phosphoric acid. L. S. Walker. Assn 



Offlc Ag Chem J 3:90-7 My '17 

 Report on use of citrates in determination of 



phosphoric acid. W. J. Jones, jr. Assn OfRc 



Ag Chem J 3:97-9 My '17 



