Nov! I, 1893.] THE TROPICAL AGRICULTURIST. 
291 
The foUowing is an analysis by Nesslei- of a soil on -which lie iiiade sonic of his elaborate 
experiments in tobacco cultivation (from "All about Tobacco"):— 
Soil. 
100 parts of soil dried at 212' F. contained the follow- 
ing constituents soluble in hot hydrochloric acid. 
Organic 
1 Matter. 
0 
0 
ft. 
Potash. 
0 
■J2 
1 
Lime. 
Oxide of 
Iron. 
. 
!!? 
Silica. 
Surface soil... 
Sub-soil 
2-50 
2-22 
0-10.3 
0-159 
0-1-25 
0-101 
0-J23 
0-070 
0-076 
0-221 
0-260 
0-229 
3 392 
0-253 
4-0B5 
0-074 
0-023 
Insohible Inorganic Matter. 
Surface soil... 
Siil)-soil 
1-382 [ •943!o-252 
1-114! -630 0-108 
I i 
0-559 
-266 
6-652 [83-382 
5-751 184-862 
Soluble ill Water. 
Surface soil... 
Subsoil 
.003410016 
■0063 |-0013 
•031 
-029 
* Not ascertained. 
The next table shews the relatix-e amount of produce and its clieiuical composition, obtained 
from the above soil, when treated with the different manures enumerated :— 
Table shewiiir/ the efect of different Manures on the growth of Tohaeco. (From " All about Tobacco.'") 
53 
Size of leaves. 
100 parts of dry tobacco contain 
Nature of Manure. 
lbs. per 
Length 
in 
Breadth 
Produce 
Carbo- 
Carbo- 
Nico- 
Nitro- 
in 
per 
Ash. 
nate of 
nate ot 
Potash. 
Soda. 
Fat. 
j5 
acre. 
inches. 
inches. 
acre. 
potash. 
lime. 
tine. 
gen. 
1 
No manure 
IS 
8.',- 
6,320 
2 
Superiihosjihate 
400 
17Jr 
8i 
6,094 
21-4 
1-16 
3-09 
0-43 
3-22 
4-50 
3 
Chloride of potassium 
300 
IS.'j 
9 
8,120 
23-02 
0-42 
14-9 
3-62 
0-87 
0-831 
3-29 
4 
Sulpliate of potash ... 
300 
18 
9 
5,540 
21-07 
1-40 
15-03 
3-39 
0-72 
3-11 
3-94 
5 
Common salt 
.300 
17 
8 
7,5G0 
24-47 
6-47 
16-84 
2-06 
0-43 
0-.58 
2-15 
3-65 
G 
Carbonate of potash 
15 J 
ISi 
Ih 
4,620 
21-96 
2-51 
3-08 
0-44 
0-.57 
3-21 
3-4-2 
1 
Feldspar ... 
1,000 
18 
8.L 
5,830 
22-19 
1-23 
18-04 
2-£6 
1-00 
0-94 
3-07 
8 
No manure 
17i 
SJ. 
4,410 
20-43 
1-13 
18-71 
2-76 
1-10 
0-50 
3-12 
9 
C^arnallite ... 
400 
18 
8 
6,-200 
21-70 
1-05 
14-41 
3-42 
0-87 
0-93 
3-01 
10 
.Sulphate of magnesia 
(Jypsuni 
400 
IGi 
7 
4,580 
21-70 
1-03 
14-40 
2-90 
0-93 
0-69 
3-f2 
] I 
400 
15 
8 
4,290 
22-68 
1-60 
2-83 
0-92 
12 
Sulphate of ammonia 
/"Sulphate of ,, 
160 
160) 
16i 
4,080 
24-79 
0-86 
16-68 
2-15 
0-71 
-80 
314 
3-86 
13 
\ ,, of potash 
(Superphosphate .. 
300 [ 
400 J 
17 
9 
5,090 
23-01 
1-40 
2-89 
0-71 
2 -SO 
4-40 
14 
Feldspar ... 
1,000 
18 
8h 
3,. 530 
It will be seen from the preceding table that 
the heaviest crops were obtained from soils 
manured with potassium chloride and sodium 
chloride, rnfcntunately, however, though chlorides 
produce quantity, the (iuality of the tobacco is 
inferior. Nessler made another series of experi- 
ments to test the combustibility of the tobaccos, 
ruder this test tobacco from soil manured with 
potassium carbonate ]Jio\ed to be the best, and 
that from soil manured with potassium sulphate 
next in order. Me.'^sler trieil also nitrate of 
potassium as a mauuie for tobacco, and found 
that it increased both the growth and com. 
buslibility of the le«,f. 
The following is the t.ible of combustibility : — 
S-i 
No. 
Manureil with 
Kept f 
in secoi 
S g ee ctf 
S3 +j 
cS O 0 i> 
J 
Carbonate of potash 
17 
2-51 
2 
Sulpliate of potash 
Gypsum ... ... 
15.', 
1-40 
3 
1.3.V 
1-6 
4 
Feldspar No. 14... 
13" 
5 
Nothing 
11 
6 
Feldspar No. 7 ... 
10 
1 -23 
7 
Carnallite 
10 
1-05 
8 
Siipei i)hi)s|)hate ... 
10 
1-16 
9 
Cliloride of potassium 
10 
•42 
10 
Nothing No. 1 ... 
10 
113 
11 
ISIixture 
10 
1-40 
12 
Sulphate of ammonia 
Si 
•80 
13 
Sulphate of magnesia 
7i 
1-03 
14 
Common salt 
44 
•47 
