82 
J^.rj)criij/cii(s iij/OJi Sircdcs. 
riot 15. lUanured icilli G c(rf.v. of Turiiip-inaiiure. 
tciiis. cwts. qrs. II)S. 
rroduce -20 7 0 IG 
Increase 5 12 3 12 
The turnip-manure used in these experiments on analysis 
gave the following results : — - 
Moistui-c 15-lG 
*Siilpliate of ammonia 8'G4 
■ fSoluble nitrogenizc'd organic matters .. y'25 
llnsoluble nitrogcnized organic matters .. 11"13 
Bi-phosphate of lime 4-99 
Equal to bone-earth rendered sohible .. C^^'TO) 
Insoluble phosphates (bone-earth) .. .. 1G"48 
Hydratcd sulphate of lime 19-2G 
Alkaline salts 12'55 
Insoluble siliceous matter 2"54 
100-00 
* Containing nitrosjen V83 
t Containing nitrogen S'Ol 
This is a very superior maniire, which it will be seen pro- 
duced a very large increase on Plot 13, though only 3 cwts. were 
applied to the acre. It is somewhat remarkable that double the 
quantity of this manure did not produce a much more consider- 
able increase. 
riot 14. Manured irith 1 cui. of Nitrate of Soda. 
tons. cwts. qrs. lbs. 
Produce 1« 'J 1 4 
Increase.. .. 3 15 0 0 
I am not aware of any accurate experiments in which nitrate 
of soda has been used by itself for turnips. The effect which so 
small a quantity as 1 cwt. of nitrate of soda produced on the crop 
was decidedly beneficial, for it will be noticed that as large a 
produce was obtained with 1 cwt. of nitrate of soda as with 
3 cwts. of fine bone-dust. This result is certainly encouraging, 
and suggests a series of trials with nitrate of soda upon root- 
crops. The nitrate should be used in such trials by itself, as 
well as in conjunction Avith superphosphate or bones. The 
nitrate of soda used in this experiment was a good sample. It 
contained in 100 parts- 
Moisture 1-87 
Pure nitrate of soda 95'G8 
Chloride of sodium '79 
Sulphate of soda 1'17 
Sand -49 
100-00 
