Matters needing attention in replenishing water with edible fungi, prevention and control of rotting roots of Cymbidium

The root rot of Cymbidium may occur all the year round, but it is mostly occurred in summer, which is mainly caused by the specific environment of high temperature and humidity and the lack of maintenance knowledge. For example, some people raise magnolia in porcelain pots, plastic pots or purple sand basins for the sake of beauty. After summer watering, because the permeability of the basin is poor, the air circulation is difficult, the breathing of the root is blocked, resulting in rotten roots; although some orchids are planted in the mud basin, but for fear of lack of water and fertilizer in summer, the topsoil of the basin is watered when it is dry (the actual potted soil is still wet). And often apply thick fertilizer. In the case of root breathing suffocation, thick fat and burning roots, coupled with the rapid reproduction of some harmful bacteria in summer, it will cause rotten roots.

No matter in the vegetative growth stage (from seedling stage to pre-flowering stage) or in the reproductive growth stage (after flowering), the suitable growth temperature is 5 Mel 25 C. Because of the lack of necessary equipment, the general family should proceed from the actual situation, in addition to taking measures such as shading, ventilation and cooling in summer with high temperature and humidity, we should strengthen root conservation in summer from the point of view of controlling its growth (making the plant dormant or semi-dormant. This is conducive to the growth and development of other seasons). Its method: one is to raise magnolia to use a mud basin, the second is not to apply fertilizer or less to talk about thin liquid fertilizer in summer, and the third is to control watering in summer and insist on never watering until dry. In order to prevent the summer water from stuffing the roots, the flowerpot can be buried in a large wooden box filled with wet sawdust (no watering in the basin). After that, it is often checked to see sawdust dry to supplement water spraying.

In case rotting roots happen inadvertently, we should rush to teach quickly. That is, first knock out the rotten root magnolia from the basin, remove the soil, cut off the roots, wash the roots with clean water, then smear the rotten roots with potassium permanganate aqueous solution, and then wrap all the leaves with white paper, exposing the roots to the sun, basking in the sun for half an hour, using ultraviolet rays to kill germs. After the treatment of the above methods, if only a few roots of the diseased plant rot, they can be directly planted in the sterilized nutritious soil, and the growth can be restored after less watering in the first half of the month; if more than half of the roots of the diseased plant rot or all rot, it should be planted in a basin filled with fine sand and placed in the shade to sprout new roots. after about two months, the new roots grow, and after changing the nutrient soil, normal management can be carried out.