What should I do if the green radish leaves turn yellow indoors
As a common indoor leaf-viewing plant, yellowing of its leaves is a typical problem that plagues many conservators. The yellow leaf phenomenon not only affects the ornamental value, but also is a health warning signal sent by plants. This paper will systematically analyze the underlying causes and scientific response plans of indoor green leaf from four dimensions: light regulation, humidity management, ventilation improvement, and fertilization optimization. Light control of the core treatment plan for green radish yellow leaves: Grasp the golden rule of scattered light. Green radish grows best under the light intensity of 2000-3000lux. It is recommended to use a professional photometer to detect indoor illumination. When moving plants, follow the "three avoidance principles": avoid direct strong light, avoid sunning on window sills, and avoid full dark corners. The oblique light period from 9 to 11 o'clock in the morning and 3 to 5 o'clock in the afternoon is the most ideal. The light intensity can be adjusted with a gauze curtain with a light transmittance of 40%. Three-dimensional humidification: The "three-in-one humidification method" is adopted to establish a microclimate maintenance system: foliar spray (2-3 times a day)+ basin bottom water pan (water level maintained at 1cm)+ ceramsite layer paving (3cm thickness). It is recommended to maintain hygrometer monitoring in the range of 60-70%. During winter heating, an ultrasonic humidifier can be used to operate intermittently 1.5 meters away from the plant. Intelligent ventilation: Create an ecological innovation of air circulation adopts the "3+3 ventilation method": open windows for 30 minutes in the morning, middle and evening every day to form air convection without strong winds. Implement "bag-type protective ventilation" in low-temperature seasons: use PE insulation bags with ventilation holes (aperture of 0.5cm and spacing of 10cm) to maintain the ambient temperature above 15℃ and ensure air exchange efficiency. Precision fertilization: Build a nutritional management model and establish a "241 fertilization system": apply a special liquid fertilizer diluted 2000 times every two weeks during the growth period from February to October, and change the dormant period from November to January of the following year to once a month. The "golden partner combination" is specially recommended: nitrogen, phosphorus and potassium compound fertilizer (20-20-20) combined with iron chelate foliar fertilizer can effectively prevent nutrient-deficient yellow leaves.
By implementing the above-mentioned systematic maintenance strategies and coordinating with regular inspections (it is recommended to conduct "three inspections" every weekend: check leaf backs, basin soil, and air roots), improvement in yellow leaves can usually be observed in 2-3 weeks. It is worth noting that leaves that have been completely yellowed should be pruned in time to concentrate nutrients (G-Y) on the new leaves. In the end, green radish will be in a healthy state of "evergreen in three seasons and vitality in all seasons."