| 覆膜与直播早熟马铃薯不同耕层的地温测定 |
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| 引用本文： | 闫志山,杨骥,范有君,李月红. 覆膜与直播早熟马铃薯不同耕层的地温测定[J]. 黑龙江农业科学, 2007, 0(2): 18-20 |
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| 作者姓名： | 闫志山 杨骥 范有君 李月红 |
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| 作者单位： | 黑龙江大学农作物研究院,哈尔滨,150080;哈尔滨市呼兰区水务局,呼兰,151500 |
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| 基金项目： | 黑龙江大学校科研和教改项目 |
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| 摘 要： | 对覆膜与直播种植方式下早熟马铃薯进行了不同耕层地温的连续测定.结果发现:覆盖地膜后,在早熟马铃薯生长前期具有明显的增高地温作用.覆膜可使5 cm和10 cm土层地温,在4月10～30日间,平均每天分别提高26.4%和37.3%;5月份,平均每天分别提高8.1%和16.2%;到了生长后期,由于植株的遮挡,覆膜的增温作用逐渐减弱,基本不存在因覆膜使耕层土壤增温过高,抑制块茎增长的弊端.
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| 关 键 词： | 覆膜 直播 早熟马铃薯 地温 |
| 文章编号： | 1002-2767（2007）02-0018-03 |
| 收稿时间： | 2006-11-29 |
| 修稿时间： | 2006-11-29 |
Ground Temperature Determined in Different Plough Layer of Early-maturing Potato Field by Mulching with Film and Direct Seeded |
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| YAN Zhi-shan,YANG Ji,FAN You-jun,LI Yue-hong. Ground Temperature Determined in Different Plough Layer of Early-maturing Potato Field by Mulching with Film and Direct Seeded[J]. Heilongjiang Agricultural Science, 2007, 0(2): 18-20 |
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| Authors: | YAN Zhi-shan YANG Ji FAN You-jun LI Yue-hong |
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| Affiliation: | 1. Grop Research College, Heilongjiang University, Harbin 150080; 2. Water Routine Bureau of Hulan District of Harbin Municipality, Hulan 150501 |
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| Abstract: | Ground temperature was determined continuously in different plough layer of early-maturing potato fields by mulching with film and direct seeded.The results showed that the ground temperature increased significantly in early growth stage of early-maturing potato after mulching with film.The ground temperature of soil layer raised by 26.1% and 37.3% per day in depth 5cm and 10cm respectively during 10~30th Apr.and raised by 8.1% and 16.2% per day in May.Due to sunshade with mulching plants,the ground temperature decreased gradually in later growth stage.There wasn't the malpractice of increasing the ground temperature over high and inhibiting the tuber expanding because of mulching with film. |
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| Keywords: | mulch with film direct seeded early-maturing potato ground temperature |
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