How to raise lotus seedlings
In midsummer, a beautiful lotus flower can always bring cool Zen. But for lotus seedlings that have just begun, novices are often confused: What kind of maintenance environment do delicate seedlings need? In particular, the problem of direct sunlight is directly related to the survival rate of plants. This article will systematically analyze the key points of lotus seedling cultivation to help you easily master the planting tips. 1. Light management of lotus seedlings 1.1 Light needs and contradictions As a typical aquatic plant, lotus flowers need more than 6 hours of light per day to promote photosynthesis. However, the root system is not fully developed in young seedling stages, and the cuticle of the leaves is weak. Continuous exposure to light will cause the leaf margins to scorch and growth stagnation. It is recommended to adopt the "morning light + sunshade" mode: receive soft light for 3 hours in the morning and use a 50% sunshade net for protection at noon. 1.2 Advanced sunshade skills Planting floating leaf plants such as water lilies on the west side of the flowerpot can not only form natural shade, but also create an ecological community. When using bamboo curtains to shade the sun, maintain a ventilation spacing of 30cm to avoid diseases caused by excessive humidity. When the plant has more than 5 standing leaves, the sunshade facilities can be gradually removed. 2. Key points of water quality control 2.1 Water ecological balance It is recommended to put 3-5 mosquito-eating fish in the water, which can not only control the breeding of mosquitoes, but also serve as natural fertilizer. Use pH test paper to test every week to maintain the pH value between 6.2 and 6.8. Algae floating on the water needs to be cleaned up in time to prevent competition for nutrients. 2.2 The water change cycle is to replace 1/3 of the water body every 15 days in spring and autumn, and partially change water 7-10 days in summer. Keep the bottom sludge layer when changing water, and the new water needs to be dried for 2 days in advance to remove chlorine gas. The water level is always maintained 1 cm below the base of the leaf petiole and can be accurately controlled by an automatic water dispenser. 3. Establishment of scientific fertilization system 3.1 Base fertilizer allocation scheme The substrate was mixed with paddy soil: decaying leaf soil: bone meal =5:3:2, and 3g slow release fertilizer was added to each liter of substrate. Cover the substrate with gauze before planting to prevent rapid loss of nutrients. The thickness of basal fertilizer layer should be 1/3 of the depth of container, and keep a safe distance of 2cm from root system. 3.2 Analysis of topdressing techniques Apply 5 grains of lotus special slow-release fertilizer every 20 days during the leaf expansion period, and use liquid fertilizer with high phosphorus and potassium content during the bud pregnancy period, dilute at a ratio of 1:1000 and then spray on the leaves. Never sprinkle fertilizer directly into the water, which may cause eutrophication of the water body. Avoid changing water within 48 hours after fertilization.
Through scientific light management, water quality control and fertilization systems, the survival rate of lotus seedlings can be increased to more than 90%. Remember the "three needs and three don't" during the seedling period: scattered light rather than direct light, running water rather than stagnant water, thin fertilizer rather than thick fertilizer. When the plant successfully passes the 60-day growth period, it can bloom elegant flowers in midsummer. Welcome to share your lotus conservation tips in the comment area!