234 
coxce^:teated organic manures. 
Nitrogen. 
i 
i 
i 
Phosphoric Acid. 
Max. 
Min. 
Aver. 
Max. 
j 
Min. 
Aver. 
Japanese rape cake 
6.12 
4.04 
5.09 
3.62 
1.02 
2.18 
Chinese rape cake 
6.76 
4.27 
4.89 
2.82 
1.22 
2.27 
Chinese rape rrith straT\’ 
6.65 
4.35 
4.80 
2.67 
1.22 
2.24 
Indian rape cake 
6.65 
4.09 
4.82 
2.71 
1.36 
2.01 
Sov bean cake '. . 
Colton seed cake (with 
7.96 
j 
6.30 
7.02 
1.54 
0.93 
1.32 
hulls removed) 
Cotton seed cake (in- 
! 7.62 
5.09 
6.39 
3.10 
1.72 
2.69 
cluding hulls) 
4.99 
1.90 
3.86 
2.86 
0.28 
1 1.73 
Rice bran and fish guanos are extensively used, as is also 
peanut cake, castor pummace to a lesser extent. 
GREEN MANURES. 
(Percentages of constituents in dry matter.) 
1 
Water. 
N. 
T205. 
KoO. 
‘Mienge” (Astragalus sinicus) . . 
16.72 
2.25 
0.41 
1.71 
Soy beans (Glycine hispida) .... 
14.00 
2.49 
.36 
3.13 
Of the oil-cake fertilizers, soy bean cake and rape cake are 
both considered very good and are used in enormous quanti- 
ties. In addition to their own extensive production, the 
Japanese import large amounts of soy beans from Manchuria. 
The price of these commodities at the time the writer was in 
Japan was approximately as follows: 
Soy bean cake $12.00 per ton 
Rape seed cake 10.00 per ton 
Cotton seed cake 9.00 per ton 
The soy bean cake formerly sold for $7.00 per ton, but as 
it is being exported to Europe in large quantities for cattle 
feeding, the price has steadily increased. The low value of 
cotton-seed cake is probably due to the fact that much of the 
cotton imported from China com.es Avith the seed. Fish 
guano is used extensively, but is very expensive, costing 
about $22.00 gold per ton. Of the several kinds of oil cake, 
the rice grower prefers soy bean and rape cake. The latter, 
however, is used principally to fertilize tobacco. 
