How to raise orchids in spring
Spring returns to the earth, which is a critical period for orchid growth. Mastering scientific maintenance methods can not only make the orchid leaves bright and straight, but also accumulate energy for subsequent flowering. This article will systematically analyze the five core points of spring orchid maintenance to help you cultivate healthy and lush orchid grass. 1. Spring light control skills for orchids 1.1 Full sunshine management in early spring During the period from beginning of spring to Qingming Festival, it is recommended to place orchids on south-facing balconies or windowsills to ensure 6-8 hours of soft light every day. At this time, the ultraviolet intensity is only 1/3 of that in summer, and full sun exposure can promote chlorophyll synthesis. 1.2 In late spring, 50% sunshade nets need to be used to protect the rain after solar terms, especially during the period from 10:00 to 15:00. You can use the "sun in the east and cover the west" method: receive the east light in the morning and block the strong light in the west in the afternoon. 2. Coordinated control of temperature and humidity 2.1 Temperature difference management between day and night maintains a temperature difference environment of 18-25℃ during the day and 12-15℃ at night, which can stimulate the development of orchid roots. The northern region should pay attention to "late spring cold" protection and use heating pads when the temperature is below 8℃. 2.2 The humidity control standard is matched with the air humidity of 60-70%, and the watering principle of "seeing dry, seeing wet" is adopted. You can place a hygrometer next to the flower pot and use a sprayer to moisturize it in the morning and in the morning. 3. Integrated water and fertilizer management plan 3.1 Scientific watering points use rainwater with pH 6.0 -6.5 or tap water that is left standing for 3 days. Slowly water along the edge of the basin until the bottom of the basin seeps water. Avoid water in the heart of the leaves. It is recommended to do it every Tuesday and Friday at 10 a.m. 3.2 Precise fertilization strategy Apply orchid special fertilizer (N-P-K=20-10-10) from March to April, diluted 2000 times once a week. Use phosphorus and potassium fertilizer (10-30-20) during the bud appearing period, combined with foliar spraying of alginate. 4. Comprehensive pest control system 4.1 Physical prevention measures Wipe the back of the leaves with alcohol cotton every month and hang yellow sticky insect boards. In the early days of discovering red spiders, you can spray them with chili water (100g pepper +1 L water soaked for 24 hours) for 3 consecutive days. 4.2 The biological control plan introduces predatory mites (50 per square meter) to establish an ecological defense line. In case of severe infection, use biopesticides such as matrine or azadirachtin and spray them 2-3 times at 7-day intervals.
Through the above systematic spring maintenance and management, the stress resistance of orchids can be significantly improved. It is recommended to conduct monthly plant testing to maintain a loose and breathable substrate environment. Combined with regular pot rotation (rotating 90 degrees every 15 days), high-quality orchids with well-proportioned plant types and straight flowers can be cultivated.