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农业科学 细绿萍 Water depth had a direct impact on the growth rate of small azolla. In the northern spring and early summer,shallow water depth (10 cm) was more effective in small azolla growth and reproduction. 结果表明,细绿萍具有较强的耐低温能力,其最适宜生长繁殖温度为20℃左右;在相同条件下,细绿萍在单位面积的平均总产量和繁殖系数极显著高于绿萍;施磷肥可以显著提高细绿萍的产草量,适宜的施肥量为0.42kg·m-2;萍池水深度对细绿萍的生长速度有直接影响,在北方春季和初夏,较浅的水深度(10cm)更有力于细绿萍的生长和繁殖。 满江红
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