| 岳维云，宋建荣，赵尚文，张耀辉，周喜旺，南 海，王 娜.不同覆膜方式对地温及冬小麦地上干物质累积规律的影响[J].干旱地区农业研究,2014,32(4):133~139 |
| 不同覆膜方式对地温及冬小麦地上干物质累积规律的影响 |
| Influence of film mulching on soil temperature and dry matter accumulation of winter wheat |
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| DOI：10.7606/j.issn.1000-7601.2014.04.024 |
| 中文关键词: 冬小麦 覆膜 地温 干物质累积 |
| 英文关键词:winter wheat mulching soil temperature dry matter accumulation |
| 基金项目:国家农业成果转化资金项目(SQ2011ECG100070)；甘肃省农业成果转化资金计划项目(1305NCNE124) |
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| 中文摘要: |
| 在大田试验条件下，采取全膜覆土穴播（C）、全膜穴播（B）、膜侧条播（A）3种覆膜种植方式，并以露地条播为对照（CK），研究了不同地膜覆盖方式对地温及冬小麦地上干物质积累规律的影响。结果表明：覆膜方式对冬小麦地温效应主要表现在地表(0～10 cm)，在5 cm土层处的影响最大，随土层深度增加而减弱；温度效应可使冬小麦的灌浆期延长，全膜覆土处理在拔节期表现出明显的降温效应，全膜穴播处理在灌浆期地表温度最高；测定期内，全膜覆土方式下干物质积累量比露地条播CK高18.01%～19.48%。产量为全膜覆土>膜侧>全膜穴播>露地。全膜覆土穴播
方式有效穗数和干物质累积量对籽粒产量的贡献率较大，是该方式产量最高的关键因素。 |
| 英文摘要: |
| The objective of this study was to determine the effects of different film mulching on soil temperature and dry matter accumulation of winter wheat. We planted winter wheat with different plastic film mulching treatments, including film-mulched soil and bunch seeding (C), plastic dropping
in hill (B), drilling beside plastic film (A), and open drill seeding (CK). The results showed that soil temperature effect was mainly manifested in the surface 0～10 cm, the most obvious effect in the depth of 5 cm, weaken with the increase of soil depth, which lasted until grain filling stage of winter wheat. Treatment of C showed significant cooling effect at the jointing stage. Treatment of B lowered the highest surface temperature at grain filling stage. Dry matter accumulation of treatment C was higher than that of treatment B by 18.01%～19.48% during the sampling period. Grain yield performance exhibited an order of film-mulched soil and bunch seeding＞drilling beside plastic film＞plastic dropping in hill and open drill seeding, with the spike number being the crucial factors affecting grain yield. |
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