The Pacific commercial advertiser. [volume] (Honolulu, Hawaiian Islands) 1885-1921, 1905-11-21

he accustomed but where likewise considerable
ton composition OF grown allows very different
quantities proportions of the plant food materials be
extracted from the soil Kobus of the Fast lava
Experiment has figured that while the total min
eral withdrawn from the soil per by II
OF amounts to $3.50 pounds in Java the average
quantity by so varieties only IIzo pounds let
the chairman OF the committee, he stated
in every losses about one-ourb or
of those sustained in your soils
number of analyses OF canes made during the past year
by the Experiment Station has shown concusvely that
only the taken from different elevations differs
widely in its general composition but also that the
variety different elevations the plantation
makes different draug upon the principal
ments This is due two causes
l. Under different conditions of soil climate the min
heterogeneous ingredients OF the stalk and vary
in their proportional amounts, and
The differ considerably from the stalks in their
composition and nsonuch as the proportion OF leaves and
stalks show wide variations in different localities with
the same variety cane matter taken
from the soil must often show material variation.
The subject fertilization therefore becomes very
and has been stated IN various committee reports
be solved in large by each plantation for his
particular conditions While the analysis of soils will in
of value as guide in the matter of feriza
ton there many instances where the mechanical and
chemical analysis of soils alone form inadequate basis for
forming satisfactory OPINION OF the n1anura needs OF held
conjunction with such analyses the climatic features of the
be taken into and the suitable forms
of the separate fertilizer ingredients determined after
seraion of these factors deal OF work has already
siderable of attention has been devoted the soils of
Hawaii particular but it needless say that further
1t that soil chemistry science is its infancy
also that in all progressive agricultural
bacterioogy the soil problems the
cuturist manifest greater degree of
placed upon the findings of the laboratory when
supplemented with data from the field than the
decade ago. While therefore, there still remains almost
nexhausbe field for continued investigation in this science
in the of all other sciences number of fundamental
principles have been derived from the ted data of
which have proved of exceptional value in determining
modern agricultural practices Probably other country
the world does greater variety of conditions prevail both
soil and climate than the Hawaiian Islands and
nanaon field and the laboratory in soyine the question of
economical fertilization The substations which being
established by the Hawaiian Sugar Planters Association will
special value this and the results OBJ
tanned from the experiments which being pursued will
clearing of number of disputed questions
The however with profit both to the individual
of his particular and to the industry
large go further the solution Of fertilizer
bems by properly conducted experiments under his own
practical following
times for fertzng economical limits amounts OF ter
required utilization of byproducts from the mill
and stables with the of gaining store OF more
information concerning this important subject
Respectfully submitted,
C. F. ECKART,
Chairman, Committee Fertilization.