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L
d epth of
su
fici
nt moistu
occurring in count
eith
r too fi
growth
T oo firm soils m ak e the p
di
cult
if not altog
of
nec
ssa
and inclin
r from fro st
dange
Too loose soil s
r i
to
car
d away by water
drying and too rapid d
plants gro
ing in it
are of middling consist
with a good lay
a suitable d
r e
h ic h correspond s to
deg
w
particular species
maintain
d t
able will
part from climat
itself
its depth
component
can do much
xcluding o r r
ther
is
xcess of moisture
r aining
and by d
h e absolute quantity of moisture r equired annually by
T
each speci
h own that a f r es h soil wi
s
constant d
L
Y
O
IT
AND
feet belo
r
in t
r i
s with a long d
r m no r too loos
th
r y ai r
int
r ds s
towa
r ong sh r inking and cracking in summ
st
r
dang
subj ect to f
ncy
r of humus
r e
g
h roughout t h e g
development of the tr
and subsoil
porosity
r ts a
a
ect the degree of moist
r to pres
eithe
ducing the ag
s i s s
il l und
r
g
of mois
F
T V
surfac
unless they do not find
h e
r lay
pp
r y season
soils
r impo ssible
r fere with
ampin
ss accompanied by incr
stability
wind
composition of the humus
r ost lifting
such as loam and calca
moisture is her
n atural requirement of any
r e unint
mo
owing s
t
r
natu
r ve moisture in
nci
s which dissipat
by accelerating its consumption
r investigation
h
a s fa
r e suits most of
u
G
T
TI O
r s of
P
r able for tre
favo u
r ation of the roots
net
prevent the admission
movement of wat
r ees
the t
r from too rapid
su
e
The best soils
und
rrupt
dly that deg
ason
the mor
e
h e condition of the soil
and proportion of its
re
but expe
r as practicable
soil
a case
r
ased
r
are liabl
h e
and t
r eous soil s
r stood that
r ee is
favour
for
ster
soil by
it
or
if
r i
nc
ha s
an even
species
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