One Thousand Questions in California Agriculture AnsweredWickson, Edward J. (Edward James)
Science
One Thousand Questions in California Agriculture Answered
Wickson, Edward J. (Edward James)
Agriculture -- California
I have planted fruit trees near the creek, where they do not have to be
irrigated as the ground there holds sufficient moisture for them, but a
neighbor tells me that on account of the moisture being so near the
surface the trees will not bear fruit well, although they will grow and
have all the appearances of health.
Shallow soil above standing water is not good for fruit trees. A shallow
soil over moving water or underflow, such as you might expect from a
creek bank, is better. The effect of water near the surface depends also
upon the character of the soil, being far more dangerous in the case of
a heavy clay soil than in the case of a light loam, through which water
moves more readily and does not rise so far or so rapidly by capillary
action. If the trees are thrifty they will bear when they attain a
sufficient age and stop the riotous growth which is characteristic of
young trees with abundant moisture. If trees have too much water for
their health, it will be manifested by the rotting of their roots, the
dying of their branches, the cropping out of mushroom fungi at the base
and other manifestations of distress. So long as the tree is growing
well, maintains good foliage to the tip of the branches and is otherwise
apparently strong, it may be expected to bear fruit in due time.
The "June Drop."
I am sending four peaches which are falling off the trees. Can you tell
me how to prevent falling of the fruit next year and what causes it?
It is impossible to tell from the peaches which you send what caused
their falling. Where fruit passes the pollination stage successfully, as
these fruits have, the dropping is generally attributed to some
conditions affecting the growth of the tree, which never have been fully
determined. It is of such frequent occurrence that it is called the June
drop, and it usually takes place in May in California. As the cause is
not understood no rational preventive has been reached. A general
treatment which consists in keeping the trees in good growing condition
late enough during the previous season, that is, by seeing to it that
they do not suffer from lack of moisture which causes them to close
their growing season too soon before preparation for the following
year's crop is made, is probably the best way to strengthen the tree for
its burden.
Trees Over a Gravel Streak.
I have an apricot orchard seven years old. Most of the land is a fairly
heavy clay with a strip of gravel in the middle running nearly north and
south. The trees on the clay bear good crops, but those on the gravel
are usually much lighter in bearing and this year had a very light crop.
Can you tell me of anything I can do to make them bear? The trees are
large and healthy looking, and grow big crops of brush.
Public-domain text, read in full here on John Shaqi.
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