Why do hydroponic plants have yellow leaves and rotting roots? Hydroponic techniques can help your plants thrive with lush foliage.

Why is your hydroponic plant turning yellow and rotting the roots?Every winter, hydroponic plants frequently suffer from yellow leaves and rotting roots. With the same care methods, why do some people enjoy lush greenery while others can only face withered yellow leaves? This article will delve into five key care techniques to help you create a healthy hydroponic ecosystem.Scientific selection of seeds lays the foundationPrinciple of selecting cold-resistant varietiesPlants like aloe vera, boston fern, and mini coconut have waxy epidermis and well-developed root systems, which can effectively resist low temperatures. When purchasing, focus on the base of the plant: healthy roots are milky white and evenly distributed, and if brown sticky substances are found, there is a risk of root rot.Photosynthesis management systemDynamic lighting adjustment planIn winter, ensure 4-6 hours of scattered light exposure daily, placing the pot on a south-facing windowsill at a 45-degree angle can increase light energy utilization by 30%. It is recommended to rotate the container 90 degrees weekly to maintain even light exposure, and use a lux meter to monitor and ensure that the light intensity remains between 5000-8000Lux.Water and fertilizer协同 control systemWinter hydroponic nutrient cycleEstablish a 15-day water change schedule, and the water temperature should be stable within the range of 18±2°C. The nutrient solution concentration should be adjusted to 1/3 of the regular amount, with the EC value controlled between 0.8-1.2mS/cm. Adding 0.01% activated carbon can effectively absorb metabolic waste.Why is your hydroponic plant turning yellow and rotting the roots?Root health maintenance proceduresThree-level root treatment standardsImplement分级 root management: retain white new roots, prune brown aging roots, and completely remove black rot roots. Disinfect tools with 75% alcohol and apply 0.1% potassium permanganate solution to prevent infection at the cut site.Microenvironment regulation strategyTemperature and humidity balance planUse a humidifier to maintain 60% air humidity, combined with a timed misting system (mist for 15 seconds every hour from 10:00 to 14:00). Place insulating pads in heating areas to ensure that the root zone temperature does not exceed the canopy temperature difference by more than 5°C.By implementing this scientific care system, 85% of hydroponic plants can safely survive the winter. It is recommended to establish a care log, recording key parameters such as pH, EC value, and the growth rate of new roots, gradually forming a personalized care plan. Welcome to share your practical experience in the comments section and get exclusive diagnostic suggestions.