芦苇作为环保型有机基质的可能性研究(英文)

The possibilities of Chinese reed fibres as an environmentally sound organic substrate

2 0世纪 80年代以来 ,岩棉一直是蔬菜无土栽培的主要栽培基质。但由于用后的岩棉条成为大量的不可降解的废物 ,于是科学家们开始寻找可多年重复利用的无机基质如海棉 ,以及环保型有机基质如椰子壳丝等。 90年代以后 ,瑞士等国家将芦苇作为有机无土栽培基质应用于蔬菜无土栽培。本文分析比较了芦苇、松木、椰子壳基质使用前的物理和化学特性 ,并通过栽培樱桃番茄(品种EVITA)的试验 ,与椰子壳基质和海棉基质栽培性能进行了比较研究。结果表明 ,芦苇可作为很有应用价值的环保型有机基质在生产中推广与应用。而且由于芦苇生长适应性好 ,分布广泛 ,来源充足 ,基质生产成本低等特点 ,而显示出很好的应用前景。

Rockwool has been using as a main substrate in vegetable soilless culture since 1980s. On the other hand, the rockwool slabs caused such an amount of indecomposable waste mats every year that soon this problem was brought to attention world widely. The seeking of substitutive substrates was concentrated on reusable inorganic substrates, e.g. polyurethane (PUR) and organic substrates such as coconut fibres. Chinese reed fibres have been used as organic substrate in vegetable soilless culture since 1991 in Switzerland. In the present experiment, the physical and chemical characteristics of Chinese reed were compared with that of pine fibres and coconut fibres before they were used for vegetable cultivation. And its phyto technical characteristics were compared with that of coconut fibres and recycled PUR mats, with a culture of cherry tomato cv. EVITA. From the data obtained, it is clear that the Chinese reed fibres can be ranged as an acquisition as ecological sound organic substrate. Moreover, it seems more important since the Chinese reed trends to thrive in everywhere in the world and it provides a cheap culture substrate that can contribute to the expansion of the soilless culture.