No matter it is hydroponics or soil culture, as long as the surrounding growth temperature is too low, which exceeds the suitable range of growth, especially in winter, the temperature is lower than 5 ℃ for a long time, the plant will not be able to stand, causing frost damage and thus the leaves turn yellow.
Green plant growth needs sunshine supplement, but suddenly giving strong light will stimulate the plant, the leaves will be burned, the color will turn yellow, if the situation is serious, it will lead to scorching, or even blackening.
Half shade environment is the most suitable, if the growth environment is too dark, no sunlight for a long time, there will be a lack of light yellow, chlorophyll can not be synthesized, so that the whole plant growth weakened, the leaves naturally yellow.
Although there is a certain demand for water and fertilizer in the growth, the improper application will cause damage to the plant root system.
There is not enough water and fertilizer supply in the growth, and the branches and leaves can't grow luxuriantly. The new long leaves are too small, and the old ones will turn yellow.
This is for hydroponics, for a long time without replacing the culture water inside, the water quality will appear turbid, and the roots will rot and the leaves will turn yellow.
