| 李荣,张睿,贾志宽.不同覆盖材料对耕层土壤温度及玉米出苗的影响[J].干旱地区农业研究,2009,27(3):13~16 |
| 不同覆盖材料对耕层土壤温度及玉米出苗的影响 |
| Effects of different covering materials on tilth soil temperature and maize emergence |
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| DOI：10.7606/j.issn.1000-7601.2009.03.03 |
| 中文关键词: 玉米 沟垄种植 覆盖材料 土壤温度 出苗 |
| 英文关键词:maize planting of ridge and ditch covering material soil temperature emergence |
| 基金项目:“十一五”国家科技支撑课题“农田集雨保水关键技术研究”(2006BAD29B03) |
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| 中文摘要: |
| 在玉米沟垄集雨种植模式下对沟内覆盖普通地膜、生物降解膜、液体地膜及秸秆的耕层土壤温度及玉米出苗状况进行了观测。两年结果表明,普通地膜和生物降解膜覆盖均能显著提高土壤温度,在5~25 cm耕层平均温度比不覆盖分别增加2.51℃~3.77℃和1.30℃~2.19℃,液体地膜覆盖与对照差异很小,增温值为0.13℃~0.56℃,而秸秆覆盖与不覆盖相比有明显的降温作用,其5~25 cm土层温度比对照降低1.25℃~2.19℃。普通地膜和生物降解膜覆盖分别使玉米提前4 d和3 d出苗,秸秆覆盖使出苗期推迟2 d,液体地膜覆盖与对照的出苗期无差异。 |
| 英文摘要: |
| Effects of common plastic film, biodegradable film, liquid film and straw mulching on tilth soil temperature and maize emergence were observed under planting pattern of ridge and ditch.Two-year results showed that common plastic film and biodegradable film mulching could improve significantly the soil temperature.The average temperature in 5～25 cm tilth soil under common plastic film and biodegradable film mulching were 2.51℃～3.77℃ and 1.30℃～2.19℃, respectively, which is higher than that of the uncovered ground.The difference between the liquid mulching and control is very little with the warming value of 0.13℃～0.56℃.Straw mulching could reduce soil temperature, and the tilth soil temperature were 1.25℃～2.19℃ which is lower than that of the control.Maize emergence were promoted 2 d and 1 d earlier under common plastic film and biodegradable film mulching, respectively, but was delayed 1d under straw mulching, and showed no difference under liquid film mulching as compared with the control. |
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