玉米的涝害及其防御措施的研究——Ⅲ.氮肥用量对减轻涝害的作用
DOI: 10.3321/j.issn:1000-7091.1989.02.006, PP. 26-31
Keywords: 玉米,涝害,反硝化作用,土壤通气
Abstract:
进行了两年的田间试验,以确定土壤肥力及追施N肥量对减轻夏玉米涝害的作用.试验结果指出,淹水5天后玉米幼苗生长非常缓慢,但提高土壤肥力和追施N肥对恢复受涝幼苗生长有明显的作用.同不施N肥小区相比,淹水后每亩追施15和30公斤硫酸铵在中肥地上增产13.8%和22.8%,在高肥地上增产9.3%和11.2%.但两种地力水平之间产量差异不显著.
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