Reasons for rotten orchids: First, improper watering, excessive rain, or unreasonable structure of potting soil, poor drainage, and sometimes the damage of germs can lead to rotten roots. The rotten roots caused the yellow leaves to shrink, shrink, and fall off. Sometimes even the reeds rotted, and even the whole plant died.
How to control rotten roots in orchid cultivation: Linyi Fertilizer Network
First, change the basin early: If you find the root of the orchid, you have to change the soil on the basin. The plant should pay attention to the quality and drainage performance. It is better to use fired soil or dry soil, charcoal and other planting materials. The root reed is properly covered with some coarse sand, and the effect is better. Linyi Fertilizer Network Copyright
Second, control sunshine: after changing the basin for a period of time, can not be exposed to the sun, to be placed in the sun, air circulation, but should pay attention to the wind should not be too large to be immune. Linyi Fertilizer Network Copyright
Third, pay attention to changing pots and planting methods: In addition to ensuring that the pots and soils pass through the water, the lower part of the head of the head should be densely close to the roots, and the head should be properly planted deep, which not only protects but also prevents the head from shaking or Float the soil. Rotten roots and shrunken yellow leaves should be cut off to reduce nutrient loss and store the nutrients of the head to maintain root development. Linyi Fertilizer Network Copyright
4. Reasonable watering: In the cultivation and management, the water should be strictly adjusted. It is better to use the semi-wet to dry the potting soil. It is not possible to see the soil dry and not too wet. In case of rain, it should be moved to the rain shelter, try to master the soil moisture to ensure its normal root opening. Linyi Fertilizer Network Copyright
5. Moderate fertilization: After fertilization, it is not possible to fertilize. Wait until the germination, slightly apply a small amount of compound fertilizer; after the new seedlings are opened, apply nitrogen fertilizer or fishmeal, bone meal and other organic fertilizers. In order to reduce acidity and anti-rat and insect-prevention diseases, it is best to use soy smashed and soaked in water for several months, then add water to dilute about 1:20, and spray the thiophanate-like drugs to prevent bacteria. Linyi Fertilizer Network Copyright
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