AGRICULTURAL EXPERIMENT STATION. 



23^ 



TABLE III— Continued. 































CO 



:> 











iO 









O 











o 











1) 











X 



r* 



o 



^ 



"S 



^ 



3 « CO 

 I) 71 

 ^^ rj '^' 



~ « 

 li=« 



3 uo^r; 





- _, o 



3xS 



, Grain 



1886, Oats I ^'^™''^' 



^ Total 



, Grain 



1887, Oats I Sti'!^^^' 



' Total 



1888, Hay 



1889, Fallo-vv. 



, Grain 



1890, Peas Straw 



' Total 



, Grain 



1891, Oats I S'^i"=i^'^' ■•• 



^ Total 



, Grain 



1892,Peas ] Straw 



' Total 



mo^ Torn * Green 



18Jo, com ^ Air-dry 



( Green 



1894, Corn I Air-dry 



( Dry matter 



Total yield, 8 crops 



Increase of yield over plots not fer- 

 tilized 



Annual increase 



1,574 

 •2,394 



3,968 



846 

 1,554 



2,400 

 1,634 



764 



854 



1,618 



1,192 



876 



2,068 



460 

 720 



1,180 



1,500 

 366 



5,260 

 978 

 910 



14,212 



1,656 



2,856 



4,512 



870 

 1,230 



2,100 

 2,166 



922 

 1,774 



1,256 

 1,410 



2-24 



444 



2,440 

 576 



6,740 

 1,280 

 1,179 



15,742 



1,690 

 211 



1,630 

 3,276 



1,726 

 3,006 



2,070 

 3,570 



4,906 



732 

 1,902 



2,634 



958 

 1,020 



1,978 



1,264 

 1,404 



268 



468 



736 



5,900 

 1,486 



12,000 

 2,532 

 2,364 



4,956 

 619 



4,732 



900 

 1,934 



2,834 

 2,166 



894 

 844 



1,738 



1,202 

 1,294 



2,496 



328 

 520 



848 



3,940 

 942 



9,860 

 1,982 

 1,824 



3,688 

 461 



5,640 



858 

 2,642 



3,500 

 1,766 



4,860 

 967 



12,800 

 2,598 

 2,406 



19,957 



5,907 

 738 



2,040 

 3,994 



1,214 

 2,620 



3,834 

 2,374 



822 



872 



954 

 824 



1,694 



1,778 



1,278 

 1,422 



1,278 



1,388 



2,700 



2,666 



348 

 744 



248 

 836 



1,092. 1,084 



7,440 

 2,046 



15,940 

 3,427 

 3,188 



9,193 

 1,149 



The previous tables present a statement of the production of the 

 entire system of plots, without any special classification of the 

 results with reference to the problems involved. Such a classifica- 

 tion is necessary in order to discover more clearly the nature of 

 the testimony offered. 



THE RELATIVE UTILITY OF DIFFERENT FORMS OF PHOSPHORIC ACID. 



Ever since commercial fertilizers have come into general use 

 more or less discussion has been carried on as to the value of insol- 

 uble phosphates as a source of phosphoric acid. This discussion 



