862 



AGRICULTURAL INDEX 



Potash — Continued 



What is muriate of potash? Am Feit 53: 



120 O 9 '20 

 Will we get German potash? Am Fert 54:87 

 Ap 9 '21 



See also Marl 



Analysis 



Centrifugal method for determining potash. 

 E. Sherrill. Am Fert 54:39-44 My 21 '21; 

 Same cond. Sugar 23:261-2, 320-2 My-Je '21 



Comparison of results obtained by the De 

 Roode, offlcial Lindo- Gladding and former 

 official Lindo-Gladding methods for the de- 

 termination of potash in mixed fertilizers. 

 E. R. Tobey. Assn Offlc Ag Chem J 4:377- 

 9 F '21 



Modified method for the determination of 

 water-soluble potash in wood ashes and 

 treater dust. H. D. Haskins. Assn Offlc 

 Ag Chem J 4:82-4 Ag '20 



Report on potash. T. D. Jarrell. Assn OfRc Ag 

 Chem J 3:315-21; 4:76-82 F, Ag '20 



Report on potash. T. E. Keitt. Assn Offlc 

 Ag Chem J 4:373-4 F '21 



Statistics 

 American potash in 1910. Am Fert 52:66-7 



My S '20 

 German potash industry. M. Parmelee. Am 



Fert 5.3:41 O 22 '21 

 Potassium salts. (In Am. fertilizer hdbk., 



1919, p. 35-8) $1.50 '19 Ware bros. CO., 1010 



Arch St, Philadelphia 

 Potash in 1917. H. S. Gale and W. B. Hicks. 



(/)( Am. fertiUzer hdbk.. 1919, p. 88-108) 



$1.50 map '19 Ware bros. co., 1010 Arch 



St. Philadelphia; Same. Am Fert 50:43-51-(- 



Mr 29; 68-70+ Ap 12 '19 

 Potash in 1918. Eng & Mining J (10th av at 



36th St, N.Y. 20c) 107:125-6 Ja 11 '19 

 Potash in 1919. W. H. Hicks and M. R. 



Nourse. Am Fert 53:120+ D 18 '20 

 Potash in 1920. M. R. Nourse. Am Fert 55: 



29-39 Ag 27 '21 

 Production of potash in the United States. Am 



Fert 53:73 Ag 14 '20 

 U S Potash production— 1920. Am Fert 54: 



122+ F 26 '21 

 Potassium 

 Agricultural fertilizers; the raw materials, 



their source and characteristics. Sci Am 



Sup (233 Broadway, N.Y. 10c) 87:175 Mr 



15 '19 

 Effects of liming on the availability of soil 



potassium, phosphorus, and sulfur. J. K. 



Plummer. bibliog Am Soc Agron J 13:162-71 



Ap '21 

 Experiments on the value of greensand as a 



source of potassium for plant culture. R. H. 



True and F. W. Geise. il J Ag Research 15: 



483-92 D 2 '18 

 Facts about fertilizers and soil fertility; po- 

 tassium in the soil. G. H. Collings. Prog 



F 34:466 Mr 15 '19 

 Manurial value of a modification of ortho- 



clase-bearing rock where only potassium 



was deficient. B. L. Hartwell. Am Rop 



.AsTon .T 11:327-9 N '19 

 Phosphorus, 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, 



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

 Pot culture tests on the availability of po- 

 tassium from greensand composts. A. M. 



Smith. Assn Offlc Ag Chem J 5:133-6 Ag 



'21 

 Potassium-bearing minerals as a source of 



potassium for plant growth. E. De "Turk. 



bibliog Soil Sci 8:269-301 O '19 

 Potassium problem and the utilisation of 



olive oil residue, in Italy. G. L' Abate. Int 



R Sci & Prac Ag 9. no 8:931 Ag '18 

 Relation of potassium to growth in plants. 



T. O. Smith and O. Butler. Ann Bot 35: 



180-225 Ap '21; Abstracts. Gard Chron 



(Loud) 69:229 My 14 '21; Tropical Ag 57:52- 



Sepai-ation and gravimetric estimation of po- 

 tassium. S. B. Kuzirian. Assn Offlc Ag 

 Chem J 3:321-3 F '20 



Some effects of potassium salts on soils. R. S. 



Smith, bibliog il Cornell Ag Exp Memoir 35: 



571-605 '20 



.S'ct' also Soils — Potassium content 

 Potassium chloride. See Potash 

 Potassium cyanide 

 Potassium cyanide for trapping fruit-flies. 



^V. A. Ramsay. Ag Gaz of New South 



Wales 31:821-2 N '20 

 Potassium nitrate. See Saltpeter 

 Potassium permanganate 

 Influence of potassium permanganate on 



Kjeldahl nitrogen determinations. D. C. 



Cochrane. 4p '20 Pa. State coll., State Col- 

 lege 

 Potato aphis 

 Injurious insects; potato aphis. N Y State 



Museum (Albany) B 202:39-43 O '17 

 Kerosene emulsion versus nicotine solution for 



combating the potato aphid; with discus- 



.sion. W. E. Britton and M. P. Zappe. J 



Econ Entom 12:71-81 F '19 

 Pink and green aphid of potato. H. E. Engle. 



Purdue Ag 14:406+ Ap '20 

 Potato spraying experiments on the control of 



the pink and green aphid. L. B. Smith, il 



Va Truck Exp B 29:101-18 O '19 

 Le puceron de la pomme de terre. O. Caron. 



Sci Ag 1:142 Mr '21 

 Spraying ol potatos attacked by aphis. Gard 



Chron (Lond) 66:257 N 22 '19 

 Tests of sprays to control the potato aphid. 



W. E. Britton and M. P. Zappe. Conn 



State Ag Exp B 211:294-7 '19 

 Potato association of America 



Annual meeting, Chicago, Dec. 31. C. W. 



Waid. Market Growers J 28:60 Ja 15 '21 

 5th annual meeting, Milwaukee, Wis., No- 

 vember 20-21, 1918. Ag Gaz of Canada 6:95- 



6 Ja '19 

 Potato association of America In conclave. 



Potato M 3:20 F '21 

 Potato association of America, past, present 



and future. C. W. Waid. Potato M 2:17 Mr 



'20 

 Potato beetle. See Colorado potato beetles 

 Potato black leg 

 Blackleg potato tuber-rot under Irrigation. 



]\I. Shapovalov and H. A. Edson. bibliog il 



J Ag Research 22:81-02 O 8 '21 

 Decay in potato clamps due to black-leg. 



S. G. Paine and C. M. Haenseler. J Minis- 

 try Ag 27:78-80 Ap '20 

 Pathological anatomy of potato blackleg. E. 



F. Artschwager. bibliog il J Ag Research 



20:325-30 N 15 '20 

 Studies on the viability of the potato blackleg 



organism. G. B. Ramsey, bibliog Phyt 0: 



285-8 Jl '19; Abstract. Maine Ag Exp B 284: 



303-4 '19 

 Potato bugs. See Colorado potato beetles 

 Potato clubs 

 Boys' ard girls' potato clubs in Minnesota. 



T. A. Erickson. Potato M 3:9 Jl '20 

 Bovs' potato club lessons. D. J. Howard, il 



Md Ag Ext B 18:1-27 '19 

 Bovs' potato clnb work. F. C. Gaylord. Pur- 

 due Ag 15:164 Ja '21 

 Montana boys' and girls' potato club. C: E. 



Potter and O. B. Whipple. Mont Ag Ext 



B 42:1-11 '19 

 Pig and potato clubs in Gloucestershire. G. 



H. Hollingworth. J Ministry Ag 28:733-8 N 



'21 

 Potato club project. Wyo Boys' & Girls' Ext 



Work V 5, no 5 3p '19 

 Potato club rules. Ohio Ag Ext C v 6, no 8 2p 



'20-'21 

 Potato clubs. F. C. Gaylord. il Purdue Ag 



Ext B 96:1-8 '21 

 Twenty lessons on Irish and sweet potato 



production for potato club members, il Va 



Ag Ext B 60:1-57 '20 

 Potato diggers 

 Auxiliary power for potato diggers. C. J. 



Boyle, il Potato M 4:9 Ag '21 

 Digging the potato crop. A. T. Knoerzer. 



Dairv F 17:835 S 1 '19 

 Engine" potato digger cuts costs in half. R. E. 



Hodges, il Pacific Rural Press 99: (sec 2) 264 



F 14 '20 



