The magnolia needs "three decreases and one increase" to spend the summer, and the fertilization techniques of edible fungi.

First, to reduce the temperature in summer, put the magnolia in the ventilated place. If the ambient temperature is above 35 ℃, the water in the soil evaporates too fast, which will make the water and nutrients of Cymbidium fall short of demand. Therefore, it is best to put the orchid flowerpot on the pool or water basin (with a wooden board), and often spray water around the plant and on the leaves, so as to improve the warm and humid environment of the orchid, so that it can grow in a small environment with a humidity of less than 25 ℃ and a humidity of 60%.

Second, dimming the magnolia should not be exposed to the hot sun, so the magnolia should be placed in an environment with good ventilation and no strong light in summer. It is best to put the potted plant under the shade shed, and the sunlight penetrates through the gap in the shade shed, so that the plant can accept weaker sunlight. It is ideal to place it in a place where direct sunlight can be shielded from direct sunlight at noon and can be seen sooner or later. Generally speaking, summer shading should reach 60% to 70%.

Third, when the room temperature of the slimming material rises to 25 ℃, the amount of fertilizer should be reduced. When the summer temperature is high, Cymbidium is in a semi-dormant or dormant state, during this period, its root absorption capacity is weak. If the fertilizer is applied a little more, the fertilizer accumulates around the root system in the later stage, which is easy to cause rotting roots and stems. But during this period, if the temperature of the growing environment of Cymbidium is reduced to less than 25 ℃, some dilute liquid fertilizer can be applied properly to promote its growth and shorten its dormancy period, if the temperature drops below 20 ℃. If the humidity meets the requirements, fertilization can be applied as usual.

Fourth, humidification in the hot summer, the growth of Cymbidium is slow, the root system absorbs less water, but the leaf water evaporation is very large. Therefore, the gentleman orchid can not lack of water. When watering, we should adhere to the principle of watering half dry and watering thoroughly. But you can't water the topsoil as soon as it's dry. Otherwise, the basin soil is in a wet state in the later stage, and it is easy to rot roots and yellow leaves. When watering, you must be careful not to let the water flow into the heart of the leaves, so as not to cause rotten heart disease and lead to "beheading".