Brownsville herald. [volume] (Brownsville, Tex.) 1910-current, 1914-04-04

regulated 10y cover. can be replcnishcd
quickly. and can be eXtinguiShcd in
%stantly bv replacing the cover. The coal
heaters require considerable time and
care To bc filled properly. are slow in
starting when lighted. throw off little
heat IN first. can not well be eXtin-
gui>hcd except by dumping and then the
fuel will continue Ia burn for some time.
can lie quickly rcplcni>hed while burn
ing. and must he rcfilled after each burn
ing.
IN a section where 4 good grade ~ coal
il very cheap the coal heaters NAV bc
most desirable even though more Labor
il required in operating them. In other
sections the oil heaters are To he pre-
ferrcd.
Tine oil heaters discharge great quan-
titles of smoke and SCOT which often al
most become a public nuisance and il j.
suspected may in some instances collect
in quantities on the blossoms 10 prevent
successful pollination. This point re-
mains 10 be- proven but j. worth consid
ering.
HEATERS PER ACRE.
Ii j. better 10 have many sources Of
heat than few even though the total
amount Of heat il the same i'll both in
stances. The heaters should be- placed
from 2o0 To - feet apart each way in
the rows between the trees rather than
near 10 or under the trees aud on the
windward side of the orchard they
should be- about 10 feet apart in 4 ruw
perhaps IL or ~ feet away from the
first row Of trees and outside of the or.
chard. This outside row thus has an cN
ira number of heaters because il must
project the first row of trees and because
the heat nom il " 80 much scattered u,
the wind that fewer heaters could mol
give the necessary protection. The heat
crS are placed in rows 20 facilitate fill
ing. lighting aud cXtineuiShine them.
WHEN TO LIGHT.
The condition of The fruii buds whcth
or partly open. or wide open. make some
little difference IN the danger point 81
The temperature. but ~ soon ~ they
first begin 10 open. - degrees r.. had bet
ter he accepted ~ meaning trouble.
" ~ ~ NNhN NI' NAlAA N'N'N Wv ~
stand an even lower temperature and
heating is seldom or never lone until
they begin 90 open. Good Judgment il
necessary at this time in order not to
burn fuel usclcssly. Tested thrrmomc
tiers should he distributed throughout
the orcahrd. Ii the temperature goes
down slowly during the night and
t.44slnN ffl INuN.s- a .h.pt finn. h.IANa
sunrise. il will not bc necessary To light
the heaters. If the temperature reaches
- degrees earlier in the night then every
fourth heater should bc lighted. aud
more ii ii il necessary Ia keep il al -
degrees or 4 little higher. The thcrmom-
lctcrS outside the orchard must be
watched - ~ Ia know how cold ID il
away from the heated area.
IL the temperature drops rapidly
toward the danger point III the evening
or during the night then the fruit grow
or must be alert aud Get fires going be-.
fore - degrees il reached because " H.
easier Ia maintain u safe temperature
than il j. 10 raise an injurious one.
When the outside temperature begins
rising and approaches ~ degrees the
fires may be- cXtinguiShcd n fast a.
weather conditions permit. The length
Of time the heaters are lighted may vary
from an hour 10 several days depending
on weather conditions.
There j. much more danger ON Il clear
night than on q cloudy one because the
radiation If heat from the earth il more
rapid. Clouds act ~ a blanket and
check the radiation very considerably.
Fruit growers. during the season when
there j. likelihood of frost damage.
should maintain careful observation Of
weather conditions. They should also
Siadv the United States weather reports
AMI whenever the forecast indicates like
lihond If frost. make ready IL light their
heaters AMI thereafter keep especially