We also probed into the feasible scheme of sludge using as commercialfertilizer.
探讨污泥作为商品肥料补充的可行性方案。
2
Major commercial laboratories are now operated in Queensland, NSW, Victoria and Western Australia by the major fertilizer companies.
现在主要的商业性实验室分布在昆士兰、新南威尔士、维多利亚及西澳大利亚等州，由各大肥料公司经营。
3
The results indicated that, along with application of normal fertilizers, application of sludge organic fertilizer could significantly increase potato yield, commercial class and quality.