Show danners skimp on w use us of fertilizer liser U S uses use q hut but Pr artion 0 of what E europe urnie does docs CHICAGO with phosphate supplies sufficient to last or years with practically unlimited sources or nf nitrogen and with potosi potash reserves ample for generations to come the united states uses only a 3 traction fraction as much fertilizer for improving the soil and prom promoting doting cro crop p production as do the n nations 0 of f europe american farmers use an average of only fre five pounds of fertilizer per acre annually says a report made public here b by the middle west soil improvement committee whereas farmers of holland use pounds th of ii belgium 80 pounds and farmers u of geimann 67 pounds the consumption of fertilizer in norway is 40 pounds per acre in sweden it is 22 pounds in france 21 in italy 17 and in great brita britain in 12 in europe soil conservation has b been e en a necessity for centuries in the united states where millions of acres of farm land have been ruined because of erosion or excessive cropping farmers are learning that fertilizer is not only a soil improver but a wealth producer as well with fertilizer prices lower than those of practically any other commodity the farmer buys and wi with th immense reserves of chemical elements to produce them in this country virtually every american farm is is a potential user of chemical foods how extensive our fertilizer supply actually is may be understood from the fact that we can obtain nitrogen without limit from the a air ir to combine with various other materials in any form desired such as ammonia ammonium sulphate ammonium phosphate ammonium nitrate nitrate of soda cyanamid cyna mid urea and calcium nitrate not to mention product byproduct by sulphate of ammonia and chilean nitrate which are still our dur principal sources of fertilizer ti nitrogen our supplies of phosphate rock used in the production of pho phosphoric acid are sufficient to last to years |