92 
Field JE.rponmenfs on Clover-srah 
Experiments in Permwient Pasture. 
Two years ago I set on foot a series of experiments in per- 
manent jmsture. The sclieme which I suggested embraced the 
following manures : — 
Quicklime, 
A mixture of quicklime and salt, 
Common salt, 
Crude potash-salts, 
Mineral superphosphate, 
Peruvian guano, and 
Bone-dust. 
For experiments on permanent pasture not less than 1-lOth 
part of an acre should be set apart for each trial ; and as some 
of the fertilisers which are used for enriching pasture-land act 
but slowly, and others exert a beneficial influence on the herbage 
for a succession of years, whilst still others affect the grass-lands 
only in the year of their application, it is absolutely necessary 
not to confine fhe experiments to a single season, but to take 
field observations and to weigh the crop for a period of at least 
four years in succession. 
My object in giving publicity to the following experiments is 
mainly to induce as many persons as possible to adopt an uniform 
plan, in order that the same experiments may be made under a 
great variety of conditions as regards soil and situation. 
Experiments on Permanent Pasture made in 18G7 hy Mr. John 
Lloyd, at Ashwick, Hatfield, Herts. 
In a 10-acre meadow, 1 acre was set apart and divided into 
plots of 1-lOth of an acre each. 
These ten plots were treated as follows as regards manure : — 
riots. 
Name of Manure. 
Quantity of 
Miiimre per Plot. 
Kate per Acre. 
1 
5 bush. 
50 bush. 
5 „ 
50 
2 
< aiid 
50 lbs. 
5 cwts. 
3 
1.; cut. 
15 „ 
50 lbs. 
5 „ 
4 
< and 
56 „ 
5 „ 
5 
6 
50 " „ 
7 
.')6 „ 
5 „ 
8 
rxi „ 
5 „ 
50 ,, 
5 
' 
< aud 
50 
5 „ 
10 
