| 方锋,俞满源,黄占斌,王俊伟.化学覆盖与干湿变化对玉米生长及水分利用效率的影响[J].干旱地区农业研究,2003,(1):61~65 |
| 化学覆盖与干湿变化对玉米生长及水分利用效率的影响 |
| The effect of chemical mulch and drought and wetness change on maize growth and water use efficiency |
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| DOI：10.7606/j.issn.1000-7601.2003.01.14 |
| 中文关键词: 保水剂 土壤改良剂 玉米 补偿效应 水分利用效率 |
| 英文关键词:Aquasorb PAM maize compensation effect WUE |
| 基金项目:国家重点基础研究发展规划项目资助课题(G1999011708)； 黄土高原土壤侵蚀与旱地农业国家重点实验室基金(10501-82) |
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| 中文摘要: |
| ：采用干旱防雨棚下盆栽的方法,研究不同土壤含水量下土壤表面化学覆盖对玉米抗旱成苗及水分利用效率(WUE)的影响。结果表明,利用保水剂和土壤改良剂PAM进行土壤表面覆盖能够提高玉米出苗率,有效降低土表蒸发,同时土壤干湿变化对玉米的生长更为有利,它可以引起强烈的生长补偿效应 |
| 英文摘要: |
| Maize was planted in pots and dealt with che mical mulch (Aquasorb and PAM whrch was a chemical material of improving soil structure.) and two levels of water controlling (high water: 80% field capacity; low water: 50% field capacity) to research the effect of these treatments on seedling survival and water use effici ency.The results showed Aquasorb and PAM mulch could improved maize seedlin g survival ratio and effectively reduced soil evaporation. Furthermor e, change of soil drought and wetness was propitious to maize growth, since it could arose the strong compensation effect. |
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