严重侵蚀退化黑土农田地力快速提升技术研究
Study on Technique to Fleetly Upgrade of Productivity of Serious Eroded Black Farmland
查看参考文献10篇
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文摘
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在一块平均坡度为4.1°顺坡垄作严重侵蚀破皮黄黑土农田上,通过集成等高改垄、秋深耕、增施牛粪和种植高产大豆品种等技术,构建严重侵蚀退化黑土农田地力快速提升技术. 结果表明:治理后,水土流失得以有效遏止,大豆产量由治理前的平均1335kg/hm~2增加到2518kg/hm~2,全坡面平均增产89.7%,变幅19.7%~172.4%,当年实现由低产田一举上升为中高产田. 土壤水分胁迫是导致严重侵蚀坡耕地地力低的主要障碍因素,严重侵蚀黑土坡耕地保水措施是地力提升的关键. 实施等高种植和深耕措施可有效地降低地表径流,提高土壤耕层含水量和水分利用效率. 地力快速提升技术可为黑土区域水土保持和粮食增产提供一定支撑 |
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其他语种文摘
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A technique of fleetly upgrading productivity of serious eroded black farmland was studied in this paper. Contour planting, deep plowing, cattle manure applying and high yield soybean breed sowing were integrated in a slope steepness 4.1°serious eroded black farmland. The results showed that soil erosion was greatly decreased, soybean grain yield increased from 1 335kg/hm~2 to 2 518kg/hm~2, mean increase rate was 89.7percent, from 19.7to 172.4percent in the whole slope farmland compared with the former farmland which no soil and water conservational managements. The farmland became from low to high yield in one year. The key obstacle factor of low productivity in serious eroded black farmland was soil moisture intimidation. Hence, water conservation was the key measure to upgrade productivity of serious eroded black farmland. Runoff could be greatly reduced by contour planting and deep plowing, which might increase soil moisture and water use efficiency. This technique will be benefit to soil and water conservation and crop yield increase in the black soil area of northeast China |
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来源
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水土保持研究
,2010,17(4):1-5 【扩展库】
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关键词
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黑土农田
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土壤侵蚀
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地力
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快速提升
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地址
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1.
中国科学院东北地理与农业生态研究所, 哈尔滨, 150081
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黑龙江大学, 哈尔滨, 150080
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1005-3409 |
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学科
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农业基础科学 |
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基金
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中国科学院知识创新工程重大项目
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国家科技支撑计划项目
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黑龙江省杰出青年科学基金
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文献收藏号
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CSCD:3979225
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参考文献 共
10
共1页
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1.
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被引
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被引
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被引
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被引
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