What should I do if the leaves of large-leaf green radish are yellow?
Large-leaf green radish is a common indoor leaf-viewing plant, and its yellowing leaves puzzles many conservators. According to statistics from professional gardening institutions, more than 70% of yellow leaf phenomena stem from improper handling of daily maintenance details. This article will systematically analyze the four core inducements of light, moisture, fertilization, and temperature, and provide highly operable solutions to help you quickly restore plant health. In-depth analysis of the causes of large-leaf green radish and yellow leaves. The problem of unbalanced light regulation The scattered light environment is the golden rule for the growth of green radish. Experimental data show that the chlorophyll content of plants exposed to 2,000 - 3,000 lux light for 3-4 hours per day is 42% higher than that in a fully shaded environment. In summer, special attention should be paid to avoid direct strong light from 11:00 to 15:00, and gauze curtains with a light-blocking rate of 30% can be used for protection. The scientific plan for water management adopts the "three-look watering method": look at the drying depth of the surface soil reaches 2 cm, look at the slight wilting of the leaves, and look at the seasonal changes (5-7 days per time in spring and autumn, 3-4 days per time in summer, and 10-15 days per time in winter). Yellow leaves with accumulated water need to be removed immediately to dry their roots. After pruning the rotten roots, soak and disinfect them with 800 times carbendazim solution. It is recommended to adopt the principle of "thin fertilizer and frequent application" for precise control of nutrient supply. During the growth period (April to September), liquid fertilizer with a ratio of nitrogen, phosphorus and potassium of 3:1:2 should be applied every 15 days, and the dilution concentration should be controlled at 1/2 of the standard in the instructions. Stop fertilization during winter hibernation to avoid the production of fertilized yellow leaves. The temperature environment optimization strategy maintains an ideal temperature band of 18-28℃, and the temperature difference between day and night does not exceed 8℃. When the room temperature is lower than 12℃, the heating equipment should be activated and spraying water on the leaves should be stopped. The cold resistance of the root system can be improved by setting the pot method (the outer large pot is filled with insulation material).
After mastering the above maintenance points, it is recommended to establish a "Green Rose Health Monitoring File" to record parameters such as leaf color, soil moisture, and new bud growth every week, and adjust the maintenance plan in a timely manner through data comparison. After 2-3 months of careful conditioning, more than 90% of the yellow-leafed plants can regain vitality.