328 RerortT oF THE HORTICULTURAL DEPARTMENT OF THE 
In Jordan’s!? experiments in New Jersey, extending from 1896 
to 1899, seven crops were grown on a prepared soil (8 parts turfy 
loam, 2 parts manure and 1 part sand), on clay soil and on sandy 
loam. The fertilizer plats all received muriate of potash, 200 
lbs. per acre, and acid phosphate, 350 Ibs., with 320 lbs. nitrate 
of soda or equivalent nitrogen in sulphate of ammonfa or dried 
blood. The prepared soil alone gave one-fifth better results than 
the same soil with fertilizers, and was not equalled by the other 
soils, fertilized or unfertilized. The use of lime on the prepared 
soil decreased the yield 12 per ct., but increased the yield where 
chemicals were used. 
Card, in 1899, grew lettuce in pots, with results indicating 
that chemicals would give as good lettuce as stable manure. In 
1900 he grew three crops on the greenhouse bench and, in codp- 
erative work, two crops on a solid bed in a commercial forcing 
house. Chemical ferilizers were far behind stable manure in 
yields produced, even on soil lightened by adding moss and sand. 
In the commercial house, presumably on a rich loam soil, with a 
layer of manure under the soil a top dressing of bone black, 
nitrate of soda, muriate and sulphate of potash gave better 
lettuce than a top dressing of manure. In a second test this 
combination with ground bone in place of bone black gave better 
results than acid phosphate, nitrate of soda and sulphate of 
potash combined or any two of them together. 
In continuing his experiments, Stuart! used much smaller 
proportions of muriate of potash than in former tests. Little 
difference was observed between the muriate and sulphate when 
they were used with raw bone meal alone or with the bone meal 
and nitrate of soda; and the difference favored the muriate. 
The stable manure tests are especially interesting in connec- 
tion with the experiments to which this bulletin is devoted. 
Black loam soil deficient in plant-food, fertilized with acid phos- _ 

2Jordan, A. T. N. J. Agrl. Exp. Sta. Rept. 1899:149-159. 
BCard, F. W. R. I. Sta. Repts., 1899:135, and 1900:252. 
“Stuart, Wm. Ind. Sta. Bul. 84:115-142 (1900). See also Amer. Gard. 
21:94. 
