each of superphosphate, nitrate of soda and sulphate
of potash per acre, but am dissatisfied with my yields as compared with
yours in California.
There is not only no standard for fertilizing orange trees, but there is
no "ideal" which might be considered as a basis for a standard. All
growers who are awake to the necessity of doing something for bearing
trees, try all things and hold fast to what (they think) is good.
Practically none of them has any enduring conviction or demonstration as
to what is good, but they keep on trying. There is, however, one clear
and enduring conviction, and that is, that continuous fertilizing must
be done for profit, and our best growers are using the same materials
you mention in considerably larger amounts than you apply, and use also
other forms of nitrogenous fertilizers. The amounts of superphosphate
and nitrate which you use would be considered homeopathic treatment by
our growers.
Cow Stable Drainage for Fruit.
I have been told that the drainings from a cow barn make an excellent
fertilizer for orange and lemon trees, in fact, anywhere on plants where
manure is considered beneficial.
The drainage from a cow barn is excellent for fertilizing almost any
crop unless it is used in too large quantity. If it should be combined
with a considerable amount of water used for cleaning out the stable, it
would be excellent for the irrigation of all kinds of fruit trees.
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