How to deal with orchid rotten heart

1. Usually it is not the central leaves that rot, but the young leaves on both sides of the center that rot. If this is found, the rotten leaves should be removed immediately, and the excess water should be absorbed by toilet paper or cotton, and then moved to a dry environment.

After the center is dried (usually 2 ~ 3 days), normal management will be resumed, but don't spray water on orchids, and the humidity of the surrounding environment should be slightly controlled. If the rotten heart is not very serious, after this treatment, the central leaves of orchids will grow slowly. However, if this situation is not handled in time, it will become serious blue rot.

2. If it can't be saved, decisively remove all the leaves on the side with fewer leaves, as soon as possible, so that there will be no water accumulation in the orchid center and no more serious damage. Moreover, removing some leaves can reduce the consumption of plants, which is conducive to using the remaining leaves and intact roots to quickly restore vitality and sprout new buds.

During operation, the leaves on the side with fewer leaves are broken one by one by hand to expose the rotten top of pseudobulb, and the rotten part is removed with clean sterilized bamboo pieces until the top of pseudobulb turns white. Then control the water for 2 ~ 3 days and replace the original soil with a larger clay pot. The newly added orchid special soil must be loose and ventilated.

Careful observation of orchids, once germinated, can increase the amount of water and liquid fertilizer and enter normal management. The orchids treated in this way, on the one hand, can use the old leaves to apply foliar fertilizer, on the other hand, the root system is intact. Orchids treated in this way will grow very fast, and generally can grow 1 ~ 2 buds every year. After two years, the seedlings will have 14 ~ 15 leaves and become mature plants. At this time, it can be planted separately.

Extended data:

Fertilize soil or land

Not if you don't give it, not if you give it more. For example, orchids grow in pots, and the soil in the pots is too fat to survive. Even if they can survive, they rarely bloom. If too much fertilizer is applied in summer, the leaves will flourish in autumn, which often leads to poor flowering of the leaves in the next spring. Too little autumn fertilizer will affect the formation of underground flower buds at the turn of autumn and winter. If there is too much nitrogen fertilizer on weekdays and the leaves are too fat, so that the growth and nutrition of leaves and flowers are out of balance, they will not bloom or bloom less.

Generally speaking, new leaves and buds can be applied several times with a small amount of light fertilizer. About 20 days after the vernal equinox and autumnal equinox and the flowers wither, both are more suitable seasons. The best fertilization time is at night, and the next morning, 1 times water is poured. Every 2-3 weeks 1 time.

At the same time, potassium dihydrogen phosphate 1 time is sprayed every 20 days to promote the flowering of pregnant buds. Fertilization according to the color of leaves is a more appropriate method. If the leaves are yellow and thin, they are short of fertilizer and should be topdressing. If the leaves are black and the tips are brown, it means that they are too fat and fertilization should be stopped. Fertilizer must be decomposed, and it can't be used without decomposition, so it is forbidden to use human feces.

water

Practice has proved that orchids are dry in eight parts and wet in two parts, and less watering is needed during flowering and budding. In the rainy season, you should move back indoors or build a shed to shelter from the rain. There should not be too much water in the early morning or evening in summer, and the amount of water can be increased appropriately in autumn. In dry season, spray every evening. Spray upwards when spraying, so that the fog spots are fine and uniform, so that the leaves are wet, the ground is wet and the air humidity is increased.

Sometimes it's best to spray it several times a day and water it from the side of the basin, not on your head or at noon. Although watering can be greatly reduced in winter, it is not without watering. Be careful not to let the basin soil dry completely. Watering in late winter and early spring will damp the leaf sheath, and then move it indoors after drying to avoid rot. In short, the principle is to water when it is dry, stop when it is wet, and do it properly.

It is best to use rainwater and spring water. All kinds of water should be taken and stored in the tank first, so that the pollutants in the water can precipitate, the water temperature is normal, and the chlorine in tap water can escape and then be poured out.

Baidu encyclopedia-orchid