t to the coffee (soil similar in every respect except that it
had not been cropped), and asked him to spare no expense in analysis. The
result was remarkable, for the soil from which the twelve crops had been
taken was found to be very little deteriorated in anything except the
quantity of lime it held, which was less than in the virgin soil. The
explanation evidently was that the leaves from the shade trees, and
perhaps decomposing stones, had supplied all the potash removed by the
crops. "Why, then," asked my friend, who had called on the Professor to
hear the result of the investigation, "can young coffee easily be grown on
the virgin soil, while it would come on very slowly and poorly in the soil
from which the twelve crops of coffee had been taken?" "Simply," was the
answer, "because the untouched virgin soil is in a beautiful physical
condition, while the soil in the plantation has been rained upon and
walked upon, and thus had its physical condition impaired." I need hardly
add that what I have just written is highly instructive, as it
corroborates what Sir John Lawes has said, and which I have previously
quoted, as to the physical condition of the soil being of more importance
than its, strictly speaking, chemical composition, and it shows us the
importance of maintaining a perfect physical condition of the soil, partly
by cultivation and partly by additions of bulk manure--farmyard
manure--top soil, and composts.
To grow young plants in old soil requires great attention to manuring and
preparing the soil, so as to supply the physical and chemical requirements
necessary for the vigorous growth of the young plants. Now we know that
the plants thrive well in virgin soil, and we cannot do better than fill
the holes with it, if it can possibly be procured within any reasonable
distance. If it cannot, then the soil should be mixed with some thoroughly
decayed and dried cattle manure, mixed with bonedust, and if it is desired
to rush the plant forward, a slight dressing of nitrate of potash might
subsequently be applied.
Coprolites, the supposed fossilized remains of animals, which would
probably contain about 40 to 50 per cent. of phosphate of lime, have been
discovered in Mysore, and I am informed by an executive Engineer officer
in the Mysore offices that they are to be found over an area of about two
square miles, and at about a distance of seven miles from the Maddur
Railway Station on the Bangalore Mysore line
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