312 
Frendi Experimental Farm at Vaitjours. 
tliat feature in agriculture will have been removed which con- 
trasts most uniavourably with the returns derived I'rom trade and 
commerce. In 18G1 these plots were all in Dutch clover; in 
1862 a wheat crop will again be taken, to complete the series of 
experiments. These will be the subject of future reports. 
The Comjjarativc Effect of Fariiujard Manure and Sewage 
on Mangold. 
The object here was to compare the crop produced by farm- 
>'ard manure with that resulting from a single dressing of sewage, 
from two such dressings, and from two dressings of liquid in 
xiddition to farmyard manure. 
The soil was a clayey loam with a subsoil of clay or marl ; 
it had last grown lucerne, which was prematurely smothered with 
grass. 
The first lot had manure from the sheep-yards, such as has 
been before refened to, but in this case it contained 70 per cent, 
of water. This was laid on in March. This and the two next 
plots were ploughed at the end of April or earjy in May, and 
50wn about May the 15th. 
The fourth plot had been manured like the fust, but ploughed 
in February ; it was then harrowed, scarified, and rolled before 
the sowing, which took place about May the 15th. The manure 
applied at the rate of 33 tons 10 cwts. per acre was equivalent to 
tons 16 cwts. per acre of ordinary manure, as it contained 5 
•per cent, less water than is usual. The first dressing of liquid 
ivas applied June the 9th, viz. 8 tons of sewage diluted with 32 
Ions of water per acre. 
The second dressing, given towards the end of June, con- 
sisted of 3 tons 3 cwts. of sewage with 6 tons 8 cwts. of water. 
The plots were weighed in the field eight days after they were 
pulled and laid in small heaps : they had been cleaned with 
more than common attention, so that the distillery of Mitry, 
which bought them, only deducted 3 per cent, from the gross 
weight for tare, &c. The produce was as follows : — 
riots. 
WangoM Crop. 
Weight of 
Koots and 
Leaves per 
Acre. 
Weight of 
Roots topped 
and tailed, 
l)cr Acre. 
Number 
of Itoots 
per L'wt. 
tons. cwts. 
tons. cwts. 
\ 
28 10 
24 17 
2 
1 dressing of sewage, 8 tous 3 cwts. 
3.5 6 
26 11 
29 
3 
2 dressings, in all 11 tons G cwts 
37 18 
32 15 
23J 
4 
Yard manure, as Plot 1 ; liquid manure, 
as Plot 3 
55 17 
48 8 
18i 
These experiments show the special advantage of using liquid 
