Generally speaking, the best environment we want that suit to the
growth of plant is in the temperature of *0 **5 ? and in the
humidity of ****0%.The high indoor temperature will make the plant
out of condition or lead to the declination of plant\'s property
and even make it die.
??In the hot weather, the thermal conduction and heat radiation can
make the temperature in the greenhouse that hasn\'t been cooled
down *0 **0 ? higher than the extermal temperature, this will
result the productive activity can\'t be carried cooling measure is
the unique approach to obtain high yield, high efficiency and
stabilization in room temperature production.
??The vertical ventilation and cooling combination of “damp
curtain-ventilator” is the most inexpensive and effective cooling
measurea for greenhouse in summer.
??The long time experience can testify that even in the most hot
weather, the” damp curtain-ventilator”system installed well call
all the same controls the temperature in greenhouse around *0 ? ,
this will decrease the loss of production caused by hot weather to
minimum.
