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固氮兰藻既能固定空气中的游离氮素,又能营光合作用.是一种大有希望的生物肥源.据估计,每年地球上由生物固定的氮素约1.5亿吨,而其中由固氮兰藻固定的氮素就有1,500万吨,占生物固氮量的10%.因此,这种生物资源早就引起国际生物学界的重视,并开展了大量的研究工作.为了探索在我省自然气候及耕作制度条件下,稻田放养利用固氮兰藻的效果和技术,近年来,我们开展了稻田放养利用固氮兰藻的试验研究工作.现小结如下:
Nitrogen fixation blue algae is not only fixed in the air of free nitrogen, but also Ying photosynthesis is a promising bio-fertilizer is estimated that each year by the biological fixation of nitrogen on Earth about 150 million tons, of which by Nitrogen fixation of blue algae has 15 million tons of nitrogen, accounting for 10% of the total amount of nitrogen fixation .Therefore, this biological resources has long attracted the attention of the international community of biology, and carried out a large number of research work.In order to explore the natural Climate and tillage system, the effect of paddy field stocking and utilization of nitrogen-fixing blue-green algae effect, in recent years, we conducted a pilot study on the use of paddy field stocking and utilization of nitrogen-fixing blue-green algae are summarized as follows: