Greenhouse fruit trees need go through a cryogenic
sleep phase and then come to the growth phase.However,the soil temperature
rises so slowly that can’t catch up with rapidly rising air temperatures
resulting in tree growth incoordination, slow root growth and tree malnutrition and so on. Mulch film is an
effective way to increase the ground temperature. However, different mulch film
does different temperature increase effect.
According to survey, mulch film has obvious on soil and colorless film is better than black mulch. The
temperature of soil covered with colorless mulching is higher than those are
not as high as 2 to 6 ℃ while black mulch film results in 1 to 3 ℃ temperature
higher.In the morning, temperature increases little where ground with colorless film increase 2 to 4 ℃ and black mulch film increase 1
to 3 ℃. At 14 p.m. , ground covered with mulch film come to a highest
temperature where Ground covered with colorless film increase reach as high as
6 ℃ while black film increase as high as
4℃ .
From this, scientist draw a conclusion that at the
same period, ground with colorless much film’ temperature is highest, followed
by ground with black mulch film. Ground without mulch film’s temperature is
lowest.
Besides, from the test results, the temperature of
ground without mulch film increases slowly. The soil without mulch film’s
temperature can only reach the air temperature after 43 days.
From these results, people learn the important role
mulch film plays in agricultural yield for it offers a better insulation
effect.
The agricultural film of Shanghai
JL Horticultural and Agricultural Supplies has nice price and high quality and offers excellent tensile strength durability
film.
It is committed to producing environmental
friendly mulch film. It is a good
choice for you.
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