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蛭石是一种理想的菌剂吸附材料。用补充了营养和水份的消毒蛭石可直接接种发酵生产各种豆科作物根瘤菌剂及其它细菌菌剂。据WEISS等1987年在威斯康辛大学的研究报导,在室温(22—25℃)条件下用蛭石培养的大豆根瘤菌剂一个星期菌数可增加10000倍,7—12天菌数可达10~8—10~9个/克菌剂,在室温下贮藏一个月菌数可超过10~9个/克菌剂;贮藏一年菌数仍可保持在10~8—10~9个/克菌剂。根瘤菌在蛭石中直接发酵可
Vermiculite is an ideal bacterial adsorbent. Disinfection vermiculite supplemented with nutrients and water can be directly inoculated fermentation of various leguminous crops rhizobium agents and other bacterial agents. According to a study by WEISS et al. At the University of Wisconsin in 1987, the strain of soybean rhizobium cultured with vermiculite at room temperature (22-25 ° C) increased the number of bacteria by 10,000 times in one week and the number of bacteria in 7-12 days by 10- 8-10 ~ 9 / bacteria agent, stored at room temperature for one month the number of bacteria can be more than 10 to 9 / bacteria agent; storage year number of bacteria can still be maintained at 10 ~ 8-10 ~ 9 / g bacteria Agent. Rhizobium in vermiculite can be fermented directly