430 



EXPERIMENT STATION RECORD 



Phosphate— Continued, 

 deposits— pontlnuod. 



in Salt Kivcr lliuiKc Wyoming. (35) 21i). 

 Siain. (X\) 220. 

 South Africa, (40) 127. 

 South Carolina. CiO) 27; (33) r.lS. 

 southw('.st(M-n Virginia, (30) (i2t!. 

 Toiin(>sso(% (31) 220; 02) 723; (34) 724; (35) 



522; (3(i) 220. 

 l\w Ukraine, (-lo) 320. 

 Tunis, ori^;in anil formation, (28) 523. 

 United Stato.s, (27) 22,327, 027; (31) 323, 



518. 

 western United States, (29) 822. 

 mineralogy and U'colotiy of, (35) 429. 

 Dccurrenec and mininR, (33) 126. 

 oriRin, (31) 725. 

 western, oriein, (39) 820. 

 eflcct on cranberries, (30) 143. 

 eiTect on (jrowth of tuherclp bacilli, (2tt) 3KI. 

 excretion as affei^ted by water drinkiny:, (34) 7(!3. 

 excretion durint; fuslini!, (30) 704. 

 Held of centrnl Kentucky, (30) 329. 

 flxation, en/.ymatic, notes, (28) 804. 

 flour, fertilizing value, (33) 227. 

 for spinach, (32) 540. 

 hexose, as alTected by enzyms, (30) 410. 

 in New Zealand, (34) 519. 

 industry in .Mjjeria, (29) 519. 

 industrv i" United ,'^tates, (37) 217. 

 Misohibie, fertilizinp value, (3()) 332. 

 insoluble, utilization by plants, (28) 520; (29) 



423. 

 islands, coral, in Pacific Ocean, (31) 725. 

 mineral, fertilizind value, (39) 025. 

 inininK practice in Tennessee, (29) 517. 

 natural, fortilizinn value, (34) 3:«. 

 Norwejiian, fertilizing value, (34) 518. 

 of lime, see Calcium phosphate. 



" "erlili^inK value. (27) 500; (28) 222; (34) 330. 

 preparation, (2S) 222. 

 residual elTects, (2(i) 428; (28) 33. 

 jiotiish fertilizers, new , (38) 519, 720. 

 I]otash fertilizers. Schroder's, tests, (38) 520. 

 precipitated, as alTecled by calcium carbonate, 



(2(i) 428. 

 precipitated, fertili/iiiu value. (37) 323. 

 liedouda. ferliliziiin value, (33) 723. 

 reverted, ferlilizinu value, (39) 521. 

 Khenanirt, description, (38) 520. 



action of citric and nitric acids on, (40) 500. 

 action of mineral acids on, (36) 711. 

 action of sulphurous acid on, (34) 220. 

 analyses, (31) 823. 



rock as affected by— 



ammonium nitrate, (28) 225. 



grinding, sifting, and roasting, (34) 220. 



ironsulplud. (29) 41'.). 



nitrilication. Ci'.)) 24. 



sulphur and manure. (39) 118. 



rock- 

 as corrector of soil acidity, (40) 815. 



availability, (27) 720. 



availability as aflectod by cow manure, (2/) 

 720. 



availabilitv for plants, (35) 520. 



calcined, fertilizing value, (20) 33. 



composting with sulphur, (36) 26; (38) 817; 

 (39)024,821. 



composting with stilphur and manure, (39) 

 118. 



conservation, (30) 219, 220. 



clTect on coniposilion of wheat, (38) 518. 



elTcct on nitrogen fixation, (28) 816. 



eftect on tomatoes, (29) ;«9. 



factors .iiVecliiig availabihty, (27) 127. 



fertilizing value, (27) 325. 434; (28) 721, 737 

 815, .SIO; (29) 31. 418. 831; (31) 139. 823, 

 (32) 518; (33) 516; (35) 532, 724; (36) 23, 

 425, 02(i, 7;i5, 738, 820; (37) 214, 228, 831 



(38) 217. 325, 326, 422, 619, 025, 817. 825 



(39) 22, 25. 32. 127, 220, 327, 335, 436, 520. 

 628, 537, 024, 818. 819. 



fertilizing value and use, (37) 723. 

 field test for. (2f>) 34. 

 finely ground, fertilizing value, (28) 816. 

 for fowls, (31) 569. 



Phosphate— Continued, 

 rock — continued. 



for Missouri .soils, (33) 212. 21.3, 214, 215. 



peatv i>astures, (30) 425. 740. 



pig feeding. (40) 772. 

 ground, analy.ses. (27) 327. 

 ground, iw alTccted by ensiling. (31) 422. 023. 

 ground, elTecton matiirlly of cotton. (31) 39 

 ground, fertilizing value, (20) :«, 426, 817;. 



(31) 630. 

 heat treatment of, (31) 823. 

 methods of analysis. (27) 610. 

 mining and proi)aration. (31) 725. 

 mining in Florida. (31) .323. 

 mixing with superphosphate. (37) 816. 

 of United .states, (39) 428. 

 origin and preparation, (34) 724. 

 I)reparation. (;J9) 724. 

 rock, production — 



and use, (32) 126. 425; (33) 218, 219, 819; (39) 



819. 

 in Florida. (29) 25; (30) 222. 



1910, (20) 34. 



J911. (27) .326. 



1912. (29) 519. 



1912-13. (31) 323. 422. 



1914, (.35) 121; (30) 124. 



191.'-). (.30) 219. 



1916, (37) 816. 



1917. (39) 821. 



United States, (32) 424; (36) 428. 

 rock — 



raw. assimilation by plants, (33) 519. 



raw. fertilizing value, (26) 33; (30) 25; (32) 



325. 02il; (33) 32, 723. 

 solution bv soil bac^leiia. (35) 723. 

 Statistics in iMiited States, (27) 327. 

 sulphur-treated, solubility in calcareous 



soil. (40) 128. 

 Tunisian, fertilizing value. (30) 721. 

 use as fertilizer, (30) 127; (;}4) 328. 

 u.se on poor soils. (31) 217. 

 utilization by oats and lupines. (31) 733. 

 V. superphosphate. (35) 520. 

 waste in l''lorida. (28) 221. 

 salts, toxicitv to soy beans, (39) 727. 827. 

 Thomas, fertilizing value, (.34) 431; (37) 521. 

 tricalcium, solubility. (39) 23. 

 Tunis, for pe;it soils, (29) 519. 

 V. potash fertilizers, (40) 821. 

 Viborg, fertilizing value, (27) 627. 

 Wolter's, fertilizing value, (34) 330. 

 Phosphates— vcc also Superphosphates. 



absorption and solution in soils. (35) 612. 



absorption by soils, (20) 122. 



after elTects, (33) 723. • 



Algerian and 'Punisian, production, (27) 727. 



analyses, (20) 127; (34) 222; (35) 428. 



as alTected by— 



ammonium sulphate, (28) 818. 

 calcium carbonate, (26) ,527; (27) 726. 

 fermenting manure, (29) 23. 

 fermenting mixtures. (29) 624. 

 lime, (20) 427. 

 availability, (28) 815. 

 availabilitv as alTected by lime. (28) 223. 

 bibliography, (27) 22. 

 calcium, iron, and alu'iiinum, comparison, (40; 



25. 

 comparison, (29) 319, 418, 516, 519, 032. 797; (30) 

 25, 20, 120, 427, 721; (31) 518, 630, 820, 823; (32) 

 323. 325, 518, 721; (33) 722; (34) 327, 330, 331, 

 518; (35) 323, 428; (30) 427, 428, 620, 738, 820; 

 (37) 23. 521. 810. 831; (38) 218. 519. ,527, 019, (525, 

 720, 817; (39) 22, 24, 25, 32, 127, 220, 327, 436, 

 438, 440, .520, 528, 537, 023, 025, 818; (40) 134, 

 230, 242, 510, 723. 724, 734. 828. 

 composition, (30) 839. 

 crude, judging. (31) 16. 

 determination. (26) 708. 

 determination in soil extracts. (32) 805.' 

 determination in soils, (27) 615. 

 elTect on— 



activity of soil bacteria. (31) 821. , ... , 



ammonia production and use in killed 



plants. (28) 327. 

 ammonification. (28) 724. 

 apples. (28) 144; (29) 4;«. 

 carbon-dioxid evolution in plants, (26) 822. 

 composition of meadow hay, (31) 624, 622. 



