What happened when ginseng banyan leaves fell off?
Ginseng fig is a bonsai plant with great ornamental value, and its unique root shape is favored by gardening enthusiasts. However, yellowing and peeling of leaves often occurs during the maintenance process, which not only affects the appearance but also threatens the health of the plants. This paper starts with the three core incentives, systematically analyzes the root causes of the problem and provides scientific response plans. Light management: Light demand, a key factor in photosynthesis, is related to yellow leaf disease. Ginseng fig is a positive plant and needs to maintain daily light for more than 4 hours. Long-term placement in the shade environment will lead to inhibition of chlorophyll synthesis, typically manifested as chlorosis and yellowing of leaves (i.e. yellow leaf disease), followed by large-scale leaf fall. Experimental data show that if light intensity is less than 3000lux lasts for 15 days, the leaf fall rate can reach more than 40%. The scientific filling light operation guide recommends moving the plant to the south side sill and using a luminometer to test to ensure that the light intensity is ≥5000lux. When replenishing the light, you need to step by step to avoid sudden exposure to the sun and causing sunburn. Cooperate with rotating the flowerpot 90 degrees every week to ensure that the leaves in all directions receive uniform light. Water and fertilizer regulation: The core skills of root maintenance and the quantitative standard for watering adopts the principle of "seeing dry, seeing wet", and watering is carried out when the surface 3 cm of soil is dry. In summer, the evaporation amount is as large as 200-300ml of water replenishment (the size of the basin) every 3 days, and in winter, it is extended to 7-10 days per time. It is more accurate to use the bamboo stick insertion method to detect soil moisture. Fertilizer ratio plan Nitrogen, phosphorus and potassium (10-15-10) compound fertilizers are applied every month during the growth period (March to September), and the dilution concentration is strictly controlled at 800-1000 times. Immediately replace 50% of the pot soil if the fertilizer damage is found, and wash the roots with clean water 2-3 times. Environmental adaptation: Temperature and humidity control parameters for stable management of potted plants keep the temperature within the range of 18-28℃ and the air humidity is greater than 60%. Avoid placing it near a radiator in winter. A sudden change in temperature difference of>8℃/day will cause stressful leaf leaves. Use a humidifier or tray to wet pebbles to maintain humidity. Transposition transition skills Environmental adjustment needs to follow the "3-day transition method": place the new environment for 2 hours on the first day, add 3 hours daily, and fully adapt on the seventh day. During the transition period, spray 0.1% potassium dihydrogen phosphate solution to enhance stress resistance.
By accurately regulating light intensity, establishing a scientific water and fertilizer cycle, and maintaining stable environmental parameters, the problem of leaf loss in ginseng fig can be effectively controlled. It is recommended to carry out preventive maintenance such as leaf light transmission testing and soil pH testing (ideal value 5.5-6.5) every month. Mastering these core skills, your bonsai will regain its green and straight vitality.