This historic book may have numerous typos and missing text.
Purchasers can download a free scanned copy of the original book
(without typos) from the publisher. Not indexed. Not illustrated.
1887 Excerpt: ...of phosphoric acid and potash. On the Valuation of
Japanese Fertilizers. By Dr. O. Kellner. The concentrated
fertilizers, chilisaltpeter, sulphate of ammonia, Peruvian guano,
superphosphates, Thomas phosphate, potash salts, etc., are still
almost entirely unknown to Japanese farmers. The first attempt to
manufacture superphosphate in the country itself has only just been
made, and the products placed on the market are still too expensive
and of inferior quality. Instead of introducing such kinds of these
fertilizers as would convince the farmers of their great efficacy
and establish a demand for artificial manures, the importation of
raw phosphates and the manufacture of superphosphates was at once
commenced, and products were thrown on the market, which have a
very doubtful value, and are, of course, too expensive, since the
transport of a rock of 24 % of total phosphoric acid from Europe or
America to Japan costs about twice as much as the import of a
concentrated superphosphate of 40-50 % of soluble phosphoric acid.
If artificial manures of low fertilizing power continue to be
recommended to the farmers, just the opposite of what is aimed at
will be arrived at; people will refuse to purchase a second time
manures entirely new to them, unless they really find them
profitable when trying them for the first time. At present, the
only trade in fertilizers, worth speaking of, is that in dried
fish, various kinds of brans, oilcakes, wood and straw ash, lime,
and night-soil, so far as the latter is transported by associations
of professional scavengers from cities into the country, where the
manure is sold, or so far as it is directly purchased or exchanged
against vegetables, wood, etc. by the farmer, who carts it home
himself. The prices paid to the citizens ...
|Country of origin:
T. Ky Daigaku N. Gakubu
||246 x 189 x 2mm (L x W x T)
||Paperback - Trade
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