THE KKoADHALK WHEAT SOILS. 
ST 
Table 45. — Brnmlluilk wheat pints — ( '(imposition of drainag< miters, in parts per 
million: samples collected in 1866, 1867, t868 % ana 1S69 (Dr. Augustus Voclcker's 
analyses). 
[Results of mean analyses.] 
_ 
1 otal 
mat 
ter. 
Lime. 
M.lU r - 
Ul'Slil. 
rot- 
ash. 
Soda. 
Nitroj,' 
Iiia. 
eil :i< 
a urn 
acid. 
V. IllO- 
rin. 
Sul- 
ph uric- 
acid. 
Phos- 
phoric 
acid. 
Plat-' 
470 1 
117 t 
4.9 
5.4 
13.7 
11. If, 
16.1 
20.7 
108. 1 
Plat :i and 4 
^441. 4 
!»s. 1 
5.1 
1.7 
6.0 
.12 
:{.!» 
10.7 
24.7 
0.68 
PbtA 
826.0 
l-'4 :{ 
8 < 
5.4 
11.7 
.13 
5.1 
11 1 
08. :> 
.91 
Plato 
107.6 
148 B 
7.9 
4.4 
10.7 
.20 
s.5 
73.3 
1 . :>4 
PJat 7 
L02 1 
181.4 
8.3 
2.9 
10 9 
.07 
14.0 
ftl 
•in. 1 
!'l 
Plat 8 
MB t 
197. :i 
8.9 
2 7 
10.6 
•»7 
16.9 
89.4 
Sil. 7 
.17 
Plat !• 
428.0 
lis. 1 
5.9 
4.1 
50. 1 
.24 
IS. 4 
12.0 
41.0 
Plat 10 
K»i it 
184. l 
7.4 
1.9 
.08 
13.9 
88.0 
44. 4 
1 44 
Plat 11 
IS6.II 
166.6 
7.:» 
1.0 
8 6 
.17 
15.3 
:?1 . 6 
54. 3 
1.68 
Plat 12 
580.9 
191.8 
k. 
•> j 
:.'> 6 
.:«> 
15. 1 
89. 9 
96.7 
1.86 
Plat 13 
:»»» a 
804.4 
9.3 
3^3 
6.1 
.16 
17.4 
:>»; ti 
si; «.i 
1.09 
Plat 14 
BOS 1 
230 S 
11.. 
in 
5.6 
<»!> 
19. 2 
39.4 
W. 7 
Plat 16 
8B8 B 
801. 1 
7.9 
5. .1 
14.8 
.11 
24.6 
l^i. «-» 
!:■! 
Plat 10a 
2*0.7 
117 1 
5. :j 
8.4 
5.1 
.09 
7.0 
11.4 
81.8 
.,1 
<i Then urjinanuivd 
A careful st inly of these results clearly indicates that increase ill 
nitric acid, increase in sulphuric acid, and increase in chlorin are 
Accompanied by a very marked increase in Lime. In most cases the 
Increase in soda <>r magnesia is comparatively small, while there is, 
6n the whole, lessol' potash than of any other base, and very little 
^actuation In its quantity. The ammonium sulphate and amnion in in 
chlorid, as you have already been reminded, are potentially, as regards 
the bases of the soil, to be looked upon as though t hey consisted of 
hydrochloric, sulphuric, and nitric acid, since their nitrification can 
be carried oul only in the presence of a supply of alkaline bases, 
which combine with the sulphuric acid and chlorin originally present, 
and are also contained, in combination with nitric acid, in the 
nitrates formed from the ammonia. The nitrates are of course to 
some extent taken up by the growing crops; but the nitric nitrogen 
thai passes away in tin* drainage, like the sulphuric acid and the 
chlorin. must take away w ith it an equivalent quantity Of base, the 
principal base present in the drainage waters being lime. 
The drainage waters from the plats manured with ammonium salts 
contain, on the average, about L85 parts of lime per million. In round 
numbers, this would equal per acre for l<> inches percolation of drain- 
age water about 1<><) pounds of lime per annum. 
On the plats unmanured, or manured with minerals only (plats 3, 4, 
6, and 16), the average is 339 parts of lime per million, equal, on the 
same basis of calculat ion, to only about , in round numbers, 250 pounds 
per acre per annum in 10 inches of drainage percolation. 
It is interesting to compare with the ammonia plats plat 9, which 
at that time received every year 550 pounds of sodium nitrate per 
acre. The drainage water from this plat contained only 118 parts per 
million of lime equal, in 10 inches percolation, to '2i>5 pounds per acre 
