Seedlings of Chrysalidocarpus lutescens, Dracaena deremensis and Dracaena marginata were grown in plastic containers filled with sphagnum peat-moss to assess the effects of three different water systems on plant growth, water saving and nutrient removal during the experimental period. The experiment lasted for 8 weeks and consisted of three water systems. These consisted of an open draining system fertigated with a standard nutrient solution (system T₀) and two closed systems: sequential reuse of the leachate (system T₁) and sequential reuse of the leachate with the addition of H₂O₂ (system T₂). Over the course of the experiment, samples of water and supplies generated in each water treatment were collected weekly, and from these data water volume and nutrient loads were calculated. The addition of H₂O₂ to the leachate resulted in an enhancement in plant dry weight in Dracaena deremensis and Dracaena marginata. Regarding anion loads (Cl⁻, NO₃⁻, H₂PO₄⁻, SO₄²⁻) in these water systems, there was a removal rate of 42%, 28%, 27% and 28%, respectively, in the closed systems compared to the open system. For the cation loads (Na⁺, K⁺, Ca²⁺ and Mg²⁺) in these water systems, there was a removal rate from 28% to 29%, respectively, in the closed systems compared to the open system.

中文翻译：

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观赏级联种植系统中的水分和养分平衡

将Chrysalidocarpus lutescens、Dracaena deremensis和Dracaena marginata 的幼苗在装满泥炭藓的塑料容器中生长，以评估实验期间三种不同水系统对植物生长、节水和养分去除的影响。实验持续了 8 周，由三个水系统组成。这些包括一个用标准营养液施肥的开放式排水系统（系统 T ₀）和两个封闭系统：渗滤液的顺序再利用（系统 T ₁）和加入 H ₂ O ₂的渗滤液的顺序再利用（系统 T ₂）。在整个实验过程中，每周收集每个水处理中产生的水和供水样本，并根据这些数据计算水量和营养负荷。在渗滤液中添加 H ₂ O ₂导致Dracaena deremensis和Dracaena marginata 的植物干重增加。对于这些水系统中的负离子负荷（Cl ^-、NO ₃ ^-、H ₂ PO ₄ ^-、SO ₄ ^2-），封闭式水系统的去除率分别为42%、28%、27%和28%。与开放系统相比。对于阳离子负载 (Na ⁺ , K⁺、Ca ²⁺和 Mg ²⁺ ) 在这些水系统中，与开放系统相比，封闭系统中的去除率分别为 28% 至 29%。