How is the leaf of gentleman orchid fold to return a responsibility? Control of diseases and insect pests of edible fungi

The pleated leaves of Magnolia belong to a normal physiological characteristic in Cenozoic Finch, Henglan and Changchun Orchid "dyeing Factory" and other varieties. In other words, all these varieties or offspring with their genetic genes have this trait. According to people's aesthetic point of view, pleating seriously affects the ornamental value of magnolia, which is a kind of unideal state of leaves.

Then besides the above mentioned, other varieties also have the phenomenon of pleating. What is the reason for this? Experience shows that improper fertilization is one of the main reasons. Apply a large amount of base fertilizer, edge fertilizer, solid fertilizer, although the fertilizer effect is long, but the fertilizer after fermentation, fertility occurs at the same time, which greatly exceeds the amount of fertilizer needed by the plant, and this period lasts for a long time, which results in a long-term surplus of fertilizer. make the root in an abnormal state of absorption, resulting in abnormal growth of leaves. From the observation of pleated leaves, we can see a regular phenomenon: first, pleated leaves, no longer than normal leaves, are shorter than normal growing leaves, and thick and hard. Second, pleated leaves, if unfolded, its width is generally wider than the normal growth of leaves.

From the above analysis, it can be concluded that excessive fertilization is an important reason for leaf pleating. After it is found that the leaves of the plant are pleated, timely measures should be taken to replace the new humus soil and suspend fertilization until the new leaves grow flat.