[J].HEILONGJIANG AGRICULTURAL SCIENCES,2021,(02):23-27.[doi:10.11942/j.issn1002-2767.2021.02.0023]
半干旱区玉米秸秆还田方式抗旱效果及效益分析
- 文献标志码:
- A
- 摘要:
- 为促进玉米抗旱减灾，本研究利用田间试验，采用大区对比设计，设6个秸秆还田处理，包括翻埋还田、碎混还田、覆盖还田、秋深松覆盖、苗后深松覆盖处理以及对照免耕无秸秆，分析了不同秸秆还田方式对玉米产量和效益以及抗旱效果的影响。结果表明：秸秆覆盖还田、碎混还田和苗后深松覆盖还田播种前土壤含水量较对照处理增加明显；秸秆翻埋还田、秋深松覆盖以及苗后深松覆盖处理的水分利用率较对照显著增加；秸秆翻埋还田和秋深松覆盖的玉米产量比对照显著增加；秸秆翻埋还田处理净收益最高，达到8 471.66元〖DK1〗?hm-2。
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备注/Memo
收稿日期：2020-10-21