How to maintain and manage succulent seedlings after germination
To answer netizens 'little experience in green plant maintenance on how to maintain and manage fleshy seedlings after germination, the next step is a comprehensive introduction.
The maintenance of seedlings after germination of succulent plants requires extra meticulous care, from light, watering to pest control to their survival rate. Mastering scientific maintenance skills can significantly improve the seedling formation rate of young seedlings and allow the newborn fleshy to thrive. The following will systematically explain the key points of maintaining succulent seedlings from the dimensions of environmental regulation, water and fertilizer management, and disease prevention and control.
- -1. Precise control of environmental conditions- -1. The light intensity gradient is adapted to the need to avoid direct strong light on the new seedlings. The first two weeks after germination should be placed in a bright scattered light environment (light intensity 3000-5000lux). As the real leaves grow, the light duration can be gradually increased, increasing by 15-20 minutes per day, and finally transitioning to 4-6 hours of soft direct light per day. In summer, you need to use a sunshade net to filter 30%-50% ultraviolet light to prevent leaf burns. 2. Coordinated management of temperature and humidity The ideal daytime temperature is maintained at 18-25℃, at night no lower than 15℃, and the temperature difference is controlled within 8℃. The relative humidity of the air is recommended to be maintained at 50%-70%, which can be adjusted by a small humidifier or tray water pan. Pay special attention to ventilation requirements, ensure air circulation 2-3 times a day, use micro fans at low gear to promote air flow, and prevent the growth of mold. 3. Optimization of substrate characteristics The root system of seedlings is fragile, and a special seedling substrate with a pore diameter of 0.5-1mm is needed. Recommended ratio: vermiculite (30%)+ peat (20%)+ perlite (25%)+ deer swamp soil (15%)+ rice hull carbon (10%). Adjust the pH to 6.0-6.5, and the EC value is <0.5ms/cm. The sowing container is preferably a plug plate with a depth of 5-7cm, and the material is preferably a breathable pottery pot. - -2. Refined operation of water and fertilizer management- -1. The intelligent water supply strategy uses the immersion basin method to supply water, and the water temperature must be consistent with the ambient temperature (±2℃). Maintain micro-moisture on the surface of the substrate during the germination period, with a water content of about 30%; implement the principle of "seeing dry, seeing wet" after the real leaves are unfolded, and water is supplied after the upper part of the substrate is dried. Avoid watering at noon in summer, and choose sunny winter to supply water around 10 a.m. It is recommended to use a pointed spout pot to slowly feed water along the edge of the basin to avoid washing out the root system. 2. Nutrient supply plan begins to replenish nutrients 20 days after emergence, and applies balanced water-soluble fertilizer (N-P-K=20-20-20) diluted 4000 times, once every 10 days. After 2 months, the solution was adjusted to 3000 times, and 0.1% seaweed essence was added. Be careful to avoid strong light within 6 hours after fertilization. In the peak growth season, chelated trace elements can be supplemented once a month, with iron and zinc contents of 0.05%. - -3. Key technologies for disease prevention and control- -1. When mixing soil for three-dimensional prevention of fungal diseases, Bacillus subtilis powder is mixed at a ratio of 5 g/kg. When the initial symptoms of damping-off (browning of the stem base) were found, immediately spray 70% hymoxazole 1500 times solution +5% amino-oligosaccharin 800 times solution for three consecutive times with an interval of 48 hours. To prevent powdery mildew, use a weekly spray of baking soda solution (1g/500ml). 2. For comprehensive pest control, yellow sticky insect boards (spacing 1m/block) are hung in the seedling area. It was found that the root mealybug could be irrigated with 5% thiamethoxam at 2000 times, and sprayed with 2.5% beta-cyhalothrin at 1000 times. Regularly use a 75% alcohol cotton swab to wipe the edge of the basin to kill potential eggs. - -4. Key points for maintenance in special stages- -1. The key operation of seedling transplanting is when the seedling diameter reaches 1.5- 2 cm. Control water 24 hours before operation, and wet the new basin substrate in advance. Use elbow tweezers and raw soil to remove and retain the complete root hair area. After planting, place it in a cool place to slow down the seedlings for 3-5 days, during which time spray maintains air humidity. 2. Measures to spend summer and overwintering. Start the cooling process when the temperature exceeds 32℃ in summer, and adopt a combination plan of double-layer sunshade net + intermittent spraying. Maintain the substrate temperature at no less than 10℃ in winter, and a heating mat can be laid (set a constant temperature of 18℃). Stop all fertilizer applications and extend the watering interval to 15-20 days. 3. The correction plan for excessive length found that excessive length immediately increased the light duration, and a fill light was used to replenish 2000lux light for 4 hours a day. For plants that have grown excessively, after the stems are lignified, beheading and breeding, retaining 2-3 true leaves at the base. Apply sulfur powder to the incision to prevent corrosion, and return to normal management after new buds germinate. Through the above systematic maintenance measures, the survival rate of succulent seedlings can reach more than 85%. The key is to grasp the principle of "gradual adaptation", and adjustments to various environmental parameters need to be carried out step by step. Regularly rotate the seedling tray to ensure uniform light reception, record the growth status every week, and adjust maintenance strategies in a timely manner. After 90 days, you can gradually transition to adult plant management mode to achieve healthy growth.
The above is how to maintain and manage the seedlings after the fleshy sprout? The detailed content, I hope it can help you!