The raanuring-expenses a bahoe should amount as to ths full-ma¬ 
nuring to FI 101*50 ( £ 8 - 15} and as to the half-manurimg to 
FU72- {£ 6.) ♦ 
If the market-price of the ribbons is of such a height, that the 
produce a bahoe of Bl, the manuring-expenses deducted, is still 
considerably higher, than that % of the not-manured fields, full- 
manuring may be thoaght productive# 
It is hardly neeessary to be mentioned that: 
1* The obtained results are very relative, the exact proportion of 
the manures to be given to every crop, and on every soil, only 
being able to be fixed in an experimental way# 
2* The results obtained on a larger scale under the same circumstan^ 
i 
I- 
ces probably will be less favourable, which is cause, that people 
calculating the produce-figures into bahoe’s or H»A*, gets results, 
which are not in keeping with the reality# 
( By J*H*Heyl, Buitenzorg Juljr 1907#) 
# 
f 3'7/30 
