| 马铃薯玉米套作下控释肥对土壤养分垂直分布及养分利用率的影响 |
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| 引用本文： | 刘飞,张民,诸葛玉平,李倩,刘东雪,王建.马铃薯玉米套作下控释肥对土壤养分垂直分布及养分利用率的影响[J].植物营养与肥料学报,2011,17(6):1351-1358. |
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| 作者姓名： | 刘飞 张民 诸葛玉平 李倩 刘东雪 王建 |
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| 作者单位： | 1.国家缓控释肥工程技术研究中心,山东农业大学资源与环境学院,山东泰安 |
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| 基金项目： | “十二五”国家科技支撑计划(2011BAD11B01;2011BAD11B02); 国家“948”项目(2011-G30)资助 |
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| 摘 要： | 通过马铃薯玉米套作田间小区试验，研究了控释肥对土壤养分垂直分布及养分利用率的影响。结果表明，与普通肥料相比，两种控释氮肥提高了耕层土壤速效氮含量，显著降低了氮素淋失，使耕层以下土层的硝态氮含量平均减少28.60%，氮肥表观利用率平均提高了16.32%，也在一定程度上抑制了磷、钾的淋失，分别平均减少5.72%和7.03%，使磷、钾的利用率分别平均提高8.67%和10.01%。控释肥减量处理（80%常规量）与常规量控释肥处理相比，没有显著降低耕层土壤养分含量，并使耕层以下速效养分含量降低，养分利用率提高，其中硝态氮含量减少14.36%，氮肥表观利用率提高了10.22%，因此该处理为本试验中的最优处理。
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| 关 键 词： | 控释肥 土壤养分 垂直分布 养分利用率 |
| 收稿时间： | 2011-01-13 |
Effects of controlled-release fertilizer on vertical distribution of soil nutrients and nutrient use efficiencies under potato and maize relay cropping system |
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| LIU Fei,ZHANG Min,ZHUGE Yu-ping,LI Qian,LIU Dong-xue,WANG Jian.Effects of controlled-release fertilizer on vertical distribution of soil nutrients and nutrient use efficiencies under potato and maize relay cropping system[J].Plant Nutrition and Fertilizer Science,2011,17(6):1351-1358. |
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| Authors: | LIU Fei ZHANG Min ZHUGE Yu-ping LI Qian LIU Dong-xue WANG Jian |
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| Affiliation: | 1.China National Engineering Research Center for Slow/Controlled Release Fertilizers,College of Recourses and Environment,Shandong Agricultural University,Taian,Shandong 271018 |
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| Abstract: | Field experiments were conducted to study the effects of controlled-release fertilizer on the vertical distribution of soil nutrients and nutrient use efficiencies under the potato and maize relay cropping system.The results indicate that the contents of the soil available N are increased and the leaching amounts of soil available N are significantly decreased under the application of the controlled-release fertilizers.The average content of soil NO3-N under the arable soil layers is decreased by 28.60%,whi... |
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| Keywords: | controlled-release fertilizer soil nutrient vertical distribution nutrient use efficiency |
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