FIELD EXPERIMENTS WITH FERTILIZERS 125 
SOIL TEST WITH FERTILIZERS ON CORN, 1893. 
By M. H. DEAN, Lime Rock. 


YIELD SHELLED CoRN PER ACRE. 







5 FERTILIZERS. (11 % Water.) 
Z 
2 Lbs. : 
o Kind. per Comparative Scale. Bu. 
Acre. 
©; Nothing, - - S| 10.3 
A. Nitrate of Soda, - |160 eA HE RT EES 1622 
B. Dis. Bone-black, - |320 | scum 8.9 
cr. Muriate of PotaSh, |1[60 | ates 28.5 
{ Nitrate of Soda, - |160} 
a 1 Dis. Bone-black, - |320 § pa 
oo. Nothing, - - — | eee 19.3 
Nitrate of Soda, - |160 a 
Muriate of Potash, |160 32. 
Dis. Bone-black, - |320 36 
WMuriateot Potash, [160 } |". v0 ages eee |. 9 
Nitrate of Soda, - |160 
G. Dis. Bone-black, - 320 (RRR 2 DS 39.5 
Muriate of Potash, |160 
Nitrate of Soda, - |160 
Ga. Dis. Bone-black, ! 640 a gS 42.8 
Muriate of Potash, |160 

Four points are especially emphasized in the experiment of 
1893: 
(1) The necessity of preparing fertilizers so as to meet the 
needs of soils. 
(2) The importance of stocking light, porous soils with a large 
amount of organic nitrogen in order to supply nitrogen to the 
crop and get the best results from the mineral fertilizers. 
(3) The value and economy of legumes for improving light, 
porous soils, by plowing in as manure. 
(4) The evidence that soluble phosphates may prove a detri- 
ment to the crop on certain light soils, unless there is an abun- 
dance of available nitrogen present in the soil. In the absence of 
available nitrogen the phosphates seem to hasten maturity and 
thus shorten the life of the plant. This is a probable explanation 
of the way the phosphoric acid diminishes the yield. 
