Grotvth of Turnij^s at JRusper, Horsham. 
119 
vescc in the slightest degree when treated with hydrochloric 
acid ; while it would effervesce very markedly if the lime were 
present as carbonate. It is well known that superphosphate 
acts most readily in soils containing plenty of carbonate of lime, 
and it seemed very probable that the scarcity of lime militated 
against the efficiency of the superphosphate. 
As will be seen from the following record of the rainfall, 
registered on the farm in Mr. Parbury's rain-gauge, more than 
3J inches of rain fell between the time of sowing on June 10th 
and the end of July, rather more than 1^ inch during August, 
nearly 3 inches in September, and more than 1^ inch in tiie 
early part of October. 
Bain/all at Eusjjer, 1882. 
Inches. 
From June 10th to 30th O'Gi 
„ June 30th to July 31st 3-03 
„ July 31st to Au<just 31st; 1-28 
„ August 31st to September 30th .. .. 2"85 
„ September 30th to October 13th .. .. 1-28 
„ Jime 10th to October 13th 9-08 
Mr. Parbury was good enough to offer to continue the experi- 
ment, by growing oats on the same plots in the following 
season, a suggestion which appeared valuable, as promising 
some indication of the comparative after-effects of the manures 
already applied to the turnip-crop. 
The experimental field was accordingly sown with oats in 
the spring of 1883, and the produce of each of the twelve plots 
was carefully kept separate during harvesting, and subsequently 
threshed separately, the corn and straw being measured arid 
weighed. The following figures record the weights of both 
grain and straw from each of the plots. It is to be remembered 
in reading the Table that the manures mentioned were those 
applied, as already described, to the turnip-crop of the previous 
year, no additional manure whatever being used for the oats, 
either at sowing or by way of top-dressing. 
Plot. 
Oats 
per riot. 
straw per Tlot. 
First Acke — 10 tons Dixg. 
bush, pecks. 
palls. 
lbs. 
1 
Superphosphate 
8 
o 
0 
470 
2 
9 
2 
0 
434 
3 
No Artificials 
8 
2 
0 
430 
4 
No Artificials 
9 
2 
1* 
44.5 
5 
Superphosphate 
8 
2 
0 
450 
6 
Ground Coprolitcs 
8 
3 
1 
404 
