How to raise Dianhua in spring
Spring returns to the earth, which is the critical time for Dianhua to rejuvenate. As a perennial herb flower, the maintenance of Dianthus in spring directly affects the annual growth and flowering quality. Mastering scientific maintenance methods will not only make your Dianthus safe for spring, but also accumulate sufficient energy for subsequent growth. The four core elements of spring Dianthus maintenance, scientific topdressing system, nutritional management is the primary task of spring Dianthus maintenance. It is recommended for newly planted plants to mix decomposed sheep manure (1:5 ratio) into the substrate as base fertilizer to ensure nutrients (G-Y) in the slow-growing stage. Mature plants should adopt the strategy of "thin fertilizer and diligent application", applying 1000-fold diluted potassium dihydrogen phosphate solution every 15 days, combined with monthly organic liquid fertilizer (such as earthworm fertilizer) to supplement trace elements. Pay special attention to increasing the application of phosphorus and potassium fertilizers during flower bud differentiation period, which can improve the quality of flowering by more than 30%. Precise temperature control solutions to maintain the golden temperature band of 18-22℃ is the key to spring maintenance. The northern region recommends adopting "three-stage" management: maintaining 15-18℃ in early spring to promote root development, stabilizing 20℃ in mid-spring to promote new bud germination, and controlling no more than 25℃ through sunshade nets in late spring. When encountering cold spring, a simple insulation shed can be built and covered with double agricultural film at night to ensure that the temperature difference does not fluctuate more than 5 ° C. Intelligent water management adopts the principle of "watering according to the sky": when the temperature is <15℃, water thoroughly once every 2 days, and when the temperature is>20℃, water once in the morning and evening. It is recommended to use the dipping basin method for watering. The soaking time is controlled within 15 minutes to ensure that the substrate humidity is maintained within the range of 60%-70%. Special attention should be paid to avoid stagnant water in the heart of the leaves. It is recommended to use a pointed spout to slowly fill water along the edge of the basin. Light Control Art implements full sunshine maintenance from March to April, ensuring ≥6 hours of direct light every day. After entering May, the "morning light + shade" mode will be adopted: receive sufficient light in the morning and use a 50% sunshade net to protect it from noon to 15:00. Rotating the flowerpot regularly (90° per week) can allow the plant to receive even light and prevent crooked crown growth. The LED fill light can replenish 450nm blue light for 2-3 hours a day on continuous rainy days.
Through the four-dimensional maintenance system of nutrient supply, environmental regulation, water management and light optimization, it can not only ensure the safety of Dianthus in spring, but also cultivate high-quality plants with strong stems and double flower numbers. It is recommended to record growth data every week and adjust maintenance plans in time so that the Dianthus can show its best condition in spring.