| 保护性耕作对贫瘠型黑土区土壤理化特性的影响 |
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| 引用本文： | 马星竹,周宝库,张喜林,魏丹,张丽莉.保护性耕作对贫瘠型黑土区土壤理化特性的影响[J].黑龙江农业科学,2009(6):55-57,65. |
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| 作者姓名： | 马星竹 周宝库 张喜林 魏丹 张丽莉 |
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| 作者单位： | 1. 黑龙江省农业科学院,土壤肥料与环境资源研究所/黑龙江省土壤环境与植物营养重点实验室,黑龙江,哈尔滨,150086
2. 中国科学院,沈阳应用生态研究所,辽宁,沈阳,110016 |
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| 基金项目： | 黑龙江省重点科技攻关项目 |
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| 摘 要： | 以贫瘠型黑土区土壤为供试对象,对2种保护性耕作措施（模式1为秋季深松、平播＋秸秆还田;模式2为秋季深松起垄＋根茬还田）下土壤的理化特性进行研究。结果表明：2种保护性措施可以增加土壤有机质含量,提高土壤pH,其中秸秆还田措施效果最明显;对土壤不同速效养分含量影响不同;对土壤物理性质的影响主要表现为降低土壤容重和增加土壤田间持水量。不同的保护性耕作措施对于提高土壤肥力、改善土壤物理特性起到重要作用。
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| 关 键 词： | 保护性耕作 有机质 秸秆还田 土壤容重 |
Effects of Conservation Cultivation on Black Soil Physic-Chemical Properties in Arid Area |
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| MA Xing-zhu,ZHOU Bao-ku,ZHANG Xi-lin,WEI Dan,ZHANG Li-li.Effects of Conservation Cultivation on Black Soil Physic-Chemical Properties in Arid Area[J].Heilongjiang Agricultural Science,2009(6):55-57,65. |
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| Authors: | MA Xing-zhu ZHOU Bao-ku ZHANG Xi-lin WEI Dan ZHANG Li-li |
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| Institution: | MA Xing-zhu ,ZHOU Bao-ku ,ZHANG Xi-lin ,WEI Dan ,ZHANG Li-li (1. Soil Fertilizer and Environment Resource Institute of Heilongjiang Academy of Agricultural Sciences/ Key Lab of Soil Environment and Plant Nutrition of Heilongjiang Province, Harbin, Heilongjiang 150086; 2. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning 110016) |
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| Abstract: | Soil physic-chemical properties were studied in arid area under two conservation cultivations (one was deep plough,flat sowing and straw-mulching,the other was deep plough and ridge forming,rootstalks and field).It was found that two conservation cultivations could increase the content of soil organic matter,raise the pH,and the straw-mulching had the greatest effects,it was also had different results due to different available nutrition.Besides,the conservation cultivations could reduce soil bulk density,increase field moisture capacity.Different conservation cultivations took important role in increasing soil fertility and improving soil physical properties. |
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| Keywords: | conservation cultivations organic matter straw-mulching soil bulk density |
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