Generally speaking,the best environment we want that suit to the growth of plant is in the temperature of 20 -25 ℃ and in the humidity of 50-70%.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 10 -20 ℃ 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.
第10年
