"Green leaf potted plant" total yellow leaves
As a common indoor leaf-viewing plant, green radish has the problem of yellowing leaves that troubles countless growers. Especially when the seasons change, seemingly healthy plants will suddenly appear scorched leaf tips and yellowed leaves. This article will use systematic analysis to take you to crack the maintenance code behind the green leaf. Imbalanced water regulation and misunderstanding of water replenishment in winter When the air humidity in winter is below 40%, simply reducing the amount of watering may easily lead to cell dehydration. It is recommended to use the "dipping basin method" to replenish water: put the flower pot into a water tray and soak it for 15 minutes, and operate it 2-3 times a month. This can not only avoid accumulated water and rotten roots, but also maintain the substrate humidity stable at 50-60%. Improper light management The light intensity threshold for green radish is 500-2000lux, which can be monitored in real time through the mobile phone metering APP. When the light at noon in summer exceeds 8000lux, gauze curtains with a light blocking rate of 30% should be installed at the window. Full sunshine can be accepted in winter, but the flowerpot needs to be rotated regularly at 180 degrees to ensure uniform light reception. Nutrient supply is unbalanced. The principle of applying thin fertilizer frequently uses liquid fertilizer with an N-P-K ratio of 3-1-2, diluted at 1:1500 and applied every half month. In winter, 0.01% ferrous sulfate can be mixed to prevent iron-deficiency yellowing. Pay attention to maintaining environmental ventilation within 24 hours after fertilization to avoid fertilizer gas damage. The soil activation plan for the total yellow leaf soil of the "green leaf potted plant" with abnormal substrate status is improved quarterly: mix perlite, leaf soil, and vermiculite in a ratio of 1:2:1 to replace the 5 cm old soil on the surface layer. Use bamboo sticks to poke 15-20 vent holes on the edge of the basin every day, and use ceramsite paving once a month to effectively prevent hardening.
By scientifically controlling the four major maintenance factors, the resistance to green radish can be significantly improved. It is recommended to establish a maintenance log to record each watering and fertilization data, and dynamically adjust the plan based on seasonal changes. When the new leaves are completely stretched and the leaf color is bright and dark green, it means that the plant has entered a healthy growth state.