Author：Li-Feng Ni^1,*

Abstrct：

    In Taiwan, it is not necessary to submit an experiment report of fertilizer effect whenever application for registration of microbial fertilizer is needed. Furthermore, there is no regulation for the quantitative test of viable indicators. The result of periwinkle pot test showed that the treatments of these two commercial PSM (phosphate-solubilizing microbial) present non positive effects to the plant growth and phosphate uptake. Whatever sterilized or not, two goods could reduce the pH and Bray I phosphate concentration of the test soil. was completed. The result of the cucumber field trials showed that PSA treatment present non positive effects to the plant growth and yields. In addition to, PSA fertilizer present minus effects significantly, caused by the toxicity from biuret, generated from heating, speculatively. On the other hand, PSB present positive effect to the plant growth and yield, showed that PSB is a effective product.

Keywords: Phosphate-Solubilizing Bacteria, Catharanthus roseus, Cucumis sativus.

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* Corresponding author, e-mail: lifengn@hdares.gov.tw
¹ Assistant Researcher, Hualien District Agricultural Research and Extension Station , Hualien, Taiwan, ROC.

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