The preservation capacity of water and fertility of several soilless cultivation substrates for Panax quinquefolium was compared in a large area.
通过较大面积的比较试验，研究了西洋参无土裁培基质的保水保肥性。
The growth and the purification ability of Hemerocallis fulva Linn. in heavy and light eutrophic water were studied by means of soilless cultivation technique on artificial substratum.
利用小型人工基质无土栽培萱草，研究其在轻度和重度富营养水中的生长及净化能力。
The growth and the purification ability of Hemerocallis fulva Linn. in heavy and light eutrophic water were studied by means of soilless cultivation technique on artificial substratum.
利用小型人工基质无土栽培萱草，研究其在轻度和重度富营养水中的生长及净化能力。
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