| 薛晓辉,郝明德,李丽霞,史培,王缠军,何晓雁.渭北旱塬不同覆盖方式对小麦产量及农艺性状的影响[J].干旱地区农业研究,2012,30(5):37~40 |
| 渭北旱塬不同覆盖方式对小麦产量及农艺性状的影响 |
| Effect of different covering methods on wheat yield and agronomic characters in Weibei highland |
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| DOI：10.7606/j.issn.1000-7601.2012.05.07 |
| 中文关键词: 渭北旱塬 覆盖方式 小麦产量 农艺性状 |
| 英文关键词:Weibei highland covering method wheat yield agronomic characters |
| 基金项目:国家重点基础研究发展计划（2009CB118604）；国家科技支撑计划重大项目（2011BAD31B01）；中国科学院知识创新工程重要方向项目（KZCX2-YW-JC408）；2011年农技推广与体系建设专项经费项目；毕节学院校级重点项目（20102017） |
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| 中文摘要: |
| 通过在渭北旱塬的不同覆盖试验，对覆盖方式与小麦产量、农艺性状之间的关系进行了研究。结果表明：(1) 地膜、秸秆-地膜、渗水地膜-秸秆
覆盖地面后小麦产量显著增加，以地膜全程覆盖处理小麦产量最高，可达6 971 kg/hm2，与无覆盖处理相比，不同材料和时期覆盖后小麦最高增产92.62%，最低增产23.16%； (2) 地膜或者渗水地膜-秸秆全程覆盖地面，小麦产量显著高于休闲期覆盖； (3) 不同材料覆盖地面后，小麦的农艺性状可以得到大幅改善，但在全程覆盖的处理中，小麦基本苗数下降。 |
| 英文摘要: |
| This paper studied the relationships of covering methods and wheat yield, agronomic characters based on the experiment of different covering methods in Weibei highland. Results were as follows: (1) wheat yield increased significantly when the grounds were covered with common plastic film, straw and common plastic film, straw and water-permeability plastic film. The yield of wheat was highest in DQF treatment, and reached 6 971 kg/hm2. Compared with no covering, under different covering matters and terms, the highest increase rate of wheat yield was 92.62% and the lowest increase rate was 23.16%; (2) Wheat yield in the treatments that grounds were covered with common plastic film, straw and water-permeability plastic film in the whole process were significantly higher than that in the fallow period; (3) Agronomic characters of wheat were improved greatly after the ground was covered with different materials, but the basi
c seedling number of wheat decreased in the whole-process mulching treatments. |
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