| 引用本文： |
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牛芬菊，张 雷，李小燕，熊春蓉，张成荣.旱地全膜双垄沟播玉米秸秆还田对玉米生长及产量的影响[J].大英文模板1,2014,(3):161-165. [点击复制]
- NIU Fen-ju, ZHANG Lei, LI Xiao-yan, XIONG Chun-rong, ZHANG Cheng-rong.Effect of stalk returning and plastic mulching on growth and yield of maize under ridge and furrow planting in dryland[J].大英文模板1,2014,(3):161-165. [点击复制]
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| 摘要: |
| 在半干旱旱作区通过试验研究全膜双垄沟玉米秸秆还田对土壤水分、玉米生长性状、秸秆腐烂程度以及产量的影响。结果表明，第一年玉米秸秆还田后全膜双垄沟播玉米前期表现出与作物争水分，后期增加了土壤的保水性，秸秆还田对土壤水分状况的影响具有双重性；玉米秸秆还田后，在作物的生长发育过程中不断地软化、腐烂，到玉米成熟时没有腐烂完的也都软化成碎的小片，以秋覆膜全膜双垄沟播秸秆还田处理的秸秆腐烂效果最好。秸秆还田对玉米叶面积及茎粗有一定的降低作用，秸秆还田后产量较不还田产量降低4.58%～4.65%、秋季整秆还田比顶凌整秆还田增产4.83%，但差异不显著。长期施用秸秆能够明显提高土壤有机质，有利于土壤的可持续发展。 |
| 关键词: 全膜双垄沟播 玉米秸秆还田 生长 产量 旱地 |
| DOI： |
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| 基金项目:旱作农业甘农财［2007］13号 |
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| Effect of stalk returning and plastic mulching on growth and yield of maize under ridge and furrow planting in dryland |
| NIU Fen-ju1, ZHANG Lei1, LI Xiao-yan1, XIONG Chun-rong2, ZHANG Cheng-rong1 |
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| Abstract: |
| Field experiments were conducted to evaluate the effects of rainwater harvesting technique (whole plastic-film mulching on alternating narrow and wide ridges with furrow planting) in combination with straw returning on soil water content, maize growth, decomposition efficiency of maize straw and yield performance in semi-arid rainfed area of Loess Plateau. A significant dual effect was detected on the relationship between soil water content, crop water requirement and straw water uptake. In particular, a remarkable competitive relation between maize water requirement and straw water absorption was found at the first year after straw return applied into the rain harvesting technique, but at the stage of later maize growth, straw returns increased soil water retention capacity on the planting model of the combination of rain harvesting technique with straw returns. Maize straw returns together with rainwater harvesting technique was used in autumn could harvest a optimal decomposition efficiency of maize straw due to the longer duration of straw returns promote rate of straw decomposition. The rain harvesting technique with straw returns decreased leaf area and stem
diameter to some extent in comparison with rain harvesting technique use only. 4.58%～4.65% of gain yield was loss in the combination of rain harvesting technique with straw returns by compared with rain harvesting technique with no straw returns. Maize grain yield was higher by 4.83% when maize straw returns together with rain harvesting technique was used in autumn than in early spring in spite of no significant difference. Our result revealed that high-producing rain harvesting technique integrated with sustainable straw returns can be expected to improve the soil quality and hence dryland agricultural ecosystem. |
| Key words: completely mulched alternating narrow and wide ridges with furrow planting stalk returning crop growth yield dryland |
