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近年来通过大面积生产实践和试验证明,细满江红(Azolla filiculoides)和日本满江红(Azolla japonica)具有比满江红(Azolla imbricata)繁殖快,单位面积产量高,固氮能力强等优点。于是,生产上大力推广。由于对其缺点没有认识,造成严重的“坐萍”和“死萍”,影响其产量、固氮与肥效。除渐江省外,外省部分地区亦发生类似情况。作者在试验中发现,三种满江红不同形态萍体,在生长速度、抗性强弱、固氮能力和其肥效作用存在着差异。
In recent years, large-scale production practices and tests have proved that Azolla filiculoides and Azolla japonica have the advantages of faster propagation, higher yield per unit area, and stronger nitrogen fixation than Azolla imbricata. So, to promote the production. Because of its shortcomings did not know, causing serious “sit Ping” and “dead duck”, affecting its yield, nitrogen fixation and fertilizer efficiency. Except for Jiangjiang Province, similar situations have also occurred in some provinces in other provinces. The authors found in the experiment, three kinds of Azolla different forms of Ping-body, in the growth rate, resistance to strong, nitrogen-fixing capacity and its effect of fertilizer there is a difference.