1G5 



several instances tlu^ same land was used as in ISSO, ami in these eases 

 the resnlts (>r IS'.M) often strcnj^tluMicd the conclusions reached in the 

 |nt'ccdin>:' yvuv. 



'ilw results of racli c\]>('rinn'nt are discussed at considcrahh^ lenj^^tJi 

 and in most eas<'s piactical su^'^i^stions are made as to the treatnuMit of 

 (he soil likely to give the most i)rolitable results. 'IMie foliowin^i are 

 among tlie author's conclusions from the exju'riments: 



(1) OiU" rosultrt rtliDw that soila ditler widt'ly iii thoir ictj[iiiii'meut8. 



(2) Pdtasb, liowovcr, much more often proves beueficial or proves iiiiicli moro 

 lar^t'ely beneficial tliau either ilitrojLjen or plioHithorie arid. 



(3) Totash as a rule most lar<;ely increases the yieUl of both j;;raiii an<l stover, bnt 

 its elVect ui)on stover pnulnetion is <j;reater than npon jjrain production. 



(1) Harnyard manures are as a rule relatively deficient in i»otash, prol)al)ly 

 because of tbe loss of a lai'fje proportion of tlio urine, which contains ahout four 

 filths of the total potash of tlie excretions. * * * 



{'■>) The relative deficicncsy of potash in so many soils, shown now by the results 

 of the work of two seast)ns, I believe justilies the Ibllowiujii: •leneral advice: 



In hrcakiufx up sod lands for corn, particularly that which is in fair condition but 

 which has been under ordinary farm numagement, if fertilizers only are to be used 

 •ijjply those wiiich are rich in potash. Use materials which will supply 80 to 100 

 pounds of actual potasb, from 25 to 30 pounds of phosphoric acid, and from 15 to 20 

 poinuls of nitrogen per acre. 



If a special corn fertilizer is to be used, apply only a moderate (quantity, say 400 

 to 5(K) pounds per acre, and use with it about 125 pounds of muriate of jjotash. It 

 is believed this conibinatiou will produce as good a crop as 800 to 1,000 pounds of 

 "corn fertilizer," and it will cost considerably less. 



With ordinary barnyard or stable manure for corn use potash. I would recom- 

 mend usiiin aliout 1 cords of manure and 100 pounds of muriate of potash per acre. 



For Ibdib-r or silaj^e corn use, either in fertilizers or with manures, about one 

 fourth more potash than above reconunended. 



In our experiments all fcutilizers and manures have been applied broadcast and 

 harrowed in, and I believe this is the best method. 



Fornuilas based on the results of these ex]^crimcnts are given for 

 live dirtereut fertilizing mixtures for corn. 



r>rief mention is made of an exix'riment at tin' station with fertilizers 

 for iKttatoes, in which the arrangement of the plats and the kimls and 

 <iuantities of fertilizers used were the same as in the corn experiment 

 described above. The detailed records of this experiment were 

 destroyed by tire, but the author states that ''no plat gave an entirely 

 satisfactory crop. The barnyard manure gave the largest yield, l)ut not 

 of the best quality. Quantity and cpiality considered, the complete fer- 

 tilizer gave the most satisfactory results, but not the most prolitable. 

 Potash for tliis cro]). as for corn, scemetl to be most deficient in this soil." 



Massachusetts Hatch Station, Meteorological Bulletin No 31, July, 1891 (pp. 4). 



A daily ami monthly summary of obst'rvations for July at the mete- 

 <orological observatory of the station, in charge of C, D. Warner, B. S. 

 .S.-.n— Xo. 3 .'3 



