岩棉作为草坪草育苗基质的化学安定性初探

Study on the chemical stability performance of rockwool as a turfgrass growth substrate

通过测定草坪草及其生长液中微量元素的含量,研究岩棉作为草坪草育苗基质的可行性。结果表明:岩棉自身可以释放出大量的微量元素供草坪草初期生长利用;其中释放出的Fe,Cu,Al等微量元素已经超过了草坪草生长需要,过量吸收后容易发生中毒。总之,岩棉具有相对稳定的化学安定性,可以作为草坪草的育苗基质。

By measuring the micronutrient elements' content, a initial study was made into the feasibility of using rockwool as a turfgrass growth substrate. The results showed that rockwool could release large number of micronutrients which can be utilized by turfgrass at early growth stage, and Fe, Cu and Al content were excess, which could result in the turfgass poisoning symptom to take place. To sum up, rockwool has a relatively stable chemical stability and can be used as a turfgrass growth substrate.