Some of these could be used as microbial fertilizer and enzyme-producing strains because of their multiple enzymes, high salt-enduring or capacities of releasing fixedphosphorus.
The paper introduces one kind of new chemical removing phosphorus technology named fixed active lanthanum oxide chemical-adsorption phosphorus based on the above summary.
在此基础上，提出了一种新的化学除磷技术—固定化活性氧化镧的化学—吸附除磷技术。
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The fixed function that calcareous soil to phosphorus in the northern part of China, is the main reason that utilization ratio is low.