Should we change water frequently in hydroponics of green radish?
As a star player in indoor green plants, hydroponic green radish's maintenance focus has always focused on water quality management. Many plant lovers often fall into the confusion of whether to change water frequently. In fact, hydroponic green radish at different growth stages have completely different needs for the frequency of changing water. This article will provide an in-depth analysis of green radish hydroponics water exchange skills to help you master scientific maintenance methods. The third stage of the hydroponic green radish water changing cycle, the initial rooting stage (2-3 days for water change) The newly transplanted hydroponic green ears require special care for the first 15 days. At this time, the stem segments that have not taken root are in a sensitive period. It is recommended to change the clear water every 48 hours, and the water temperature is strictly controlled between 18-25℃. Changing water at this stage can effectively prevent incision rot. Experimental data shows that maintaining 6 hours of scattered light per day and regularly changing water can increase the success rate of rooting by 40%. During the root development period (5-7 days for water change), a critical transition period is entered when new roots of more than 3 cm appear. At this time, the water change frequency should be adjusted to 5 days/time, focusing on observing the transparency of water quality. It is recommended to use a TDS test pen to monitor water quality and change the water immediately when the value exceeds 150μS/cm. Simultaneously add 1/4 dose of hydroponic nutrient solution, and pay attention to cleaning the algae biofilm on the inner wall of the container. The mature and stable period (10-15 days for water change) will enter the maintenance and stable period after the root system develops completely. At this time, the water change cycle can be extended to 10-15 days, but the water level needs to be maintained with regular water replenishment. It is recommended to maintain 1/3 of the water volume in the container and use mountain spring water or tap water that has been dried for 3 days. Supplement iron chelated nutrient solution once a month to prevent iron-deficient yellow leaves common in hydroponics plants. Advanced skills for hydroponics green radish maintenance water quality: golden rule: rainwater> drying tap water> purified water> mineral water. Rainwater contains natural nitrogen, tap water needs to be left to volatilize chlorine, pure water lacks minerals and needs to be mixed with nutrient solution, and mineral water has too high mineral content and can easily form scale. Water level control three-dimensional ① Root penetration depth: 2/3 of new roots are submerged, 1/3 of mature roots ② Seasonal adjustment: reduce 1 cm in summer to prevent rotten roots ③ Container selection: wide-mouthed bottles are better than fine-mouthed bottles to ensure accurate air circulation. Control the pace of water change and maintenance details, hydroponically green radish can achieve green throughout the year. It is recommended to establish a maintenance log to record the date of each water change, water quality parameters and growth status, and gradually explore the most suitable personalized maintenance plan. When phenomena such as thickening of leaves and increasing number of aerial roots are found, it means that a stable hydroponic ecosystem has been formed and the water change cycle can be appropriately extended.