When should orchids be fertilized in spring and autumn?

Orchid is a kind of flower with high ornamental value, which likes fertilizer and humidity and avoids waterlogging. Pot soil moisture is too large, roots and leaves are easy to rot and turn yellow. It is dry and wet when watering, and there is little water in winter. It is best to use rainwater and river water, and use tap water for several days. Don't get it on the leaves when watering. Generally, rotten thin bean cake water is applied once a month during the growing period, and it is not applied at ordinary times. First, choose a flowerpot with a diameter of 1, put 3 parts of humus soil and 1 part of perlite preparation soil into the flowerpot, then dig a pit of 1cm, put the cymbidium into the covering soil, pat it gently, and finally water it along the flowerpot until the soil is wet, put it in the shade after watering, and wait for 3 days to come alive. Generally, the method of dividing plants is adopted. After the plants are divided, the wound is covered with plant ash to prevent decay, and 20% river sand is added to the decaying humus soil to facilitate water permeability and ventilation. Planting blue seedlings, watering 1 time in spring and autumn, 2 ~ 7 days, and watering 1 ~ 2 times a day in summer. When flowering, pick small buds to facilitate the next year's flowering. During flowering, water should not splash on the leaves to prevent black spots from affecting the ornamental value. Grain Rain Festival moves orchid pots out of doors. Orchids should be changed once a year. In the growing season, 15% cake fertilizer water or 0. 1% urea water and 0.2% potassium dihydrogen phosphate water should be applied topdressing. Rain and snow water are most suitable for orchids, followed by pond water and river water. Tap water can be used after 2 ~ 3 days. When cultivating potted orchids, we should always apply thin fertilizer. Thin fertilizer can be applied once every 3-4 weeks to make orchids grow vigorously, and the watering times should be controlled to keep the soil slightly wet and prevent orchids from rotting roots. In autumn and winter, orchids should be placed in bright places to promote their photosynthesis. Raising at home can also effectively purify indoor air, so it is loved by most people, so do you know?