What should I do if the Brazilian wood leaves turn yellow?
As a representative of tropical leaf-viewing plants, the yellowing problem of Brazilian wood leaves puzzles many plant lovers. Leaves are not only important organs of photosynthesis, but also a barometer of plant health. We will systematically analyze the four core maintenance points from root maintenance to environmental control. Soil conservation system to establish soil hardening harm analysis Brazil wood roots to soil oxygen content is extremely sensitive, when the soil porosity <30%, root respiration blocked ATP synthesis is insufficient. The data show that the yellow leaf rate of plants in hardened soil can reach 3 times of normal value. Scientific soil replacement guidelines recommend a gold ratio of peat soil: pearlite: moldy soil =4:3:3, and 1/3 of the protective soil is retained every 18 months. After changing pots, put them in shade for 7 days, and use them together with HB-101 vitality element to improve survival rate. Light management system optimizes light intensity demand curve analysis Brazilian wood grows best under light intensity of 3000-5000lux. Experiments have shown that the chlorophyll content of plants exposed to an environment of <1000lux for a long time will decrease at a rate of 2% per week. Implementation points of the lighting plan use east-facing window sills to receive morning light in spring and summer, and turn to south-facing balcony in autumn and winter. Use an illuminance meter to conduct regular inspections. When natural light is insufficient, it is recommended to supplement LED plant fill light (spectral ratio of red and blue light is 6:1). Precise moisture control plan Dry and wet cycle standards are formulated using the "fingertip detection method": watering when 2 cm under the top soil is dry. The soil water content is maintained at 40%-50% in winter and at 60%-70% in summer. Intelligent soil hygrometers accurately monitor data. When the root is found to be browning in the emergency treatment process of rotten roots, immediately remove the pot and prune the rotten tissue, and soak it in 1000 times potassium permanganate solution for 30 minutes. Switch to the transitional substrate of ceramsite + water moss, and then transfer to conventional culture soil after new roots germinate. The standard parameters of air circulation for key technologies for environmental regulation maintain the ambient air flow rate of 0.3- 0.5 m/s, and the daily ventilation period is ≥4 hours. Circulating fans can be equipped in confined spaces, but direct blowing on plants needs to be avoided. Yellow leaf pruning practices use alcohol-disinfected pruning shears, and cut diagonally along the leaf base 2 cm. After pruning, spray 800 times mancozeb solution to prevent infection, and add magnesium-containing foliar fertilizer to promote the germination of new leaves.
By establishing a four-in-one maintenance system of soil-light-moisture-environment, combined with regular observation and records, the problem of yellow leaves of Brazilian wood can be effectively controlled. It is recommended to conduct a monthly plant health assessment, establish a maintenance log, and gradually master the personalized maintenance rhythm.