| 控释肥减量施用对马铃薯产量、品质及土壤硝态氮含量的影响 |
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| 引用本文： | 董亮,张玉凤,刘苹,于淑芳,杨力,杨鹏.控释肥减量施用对马铃薯产量、品质及土壤硝态氮含量的影响[J].江西农业学报,2012,24(6):86-89. |
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| 作者姓名： | 董亮 张玉凤 刘苹 于淑芳 杨力 杨鹏 |
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| 作者单位： | 山东省农业科学院农业资源与环境研究所、农业部新型肥料创制重点实验室、山东省新型肥料工程技术研究中心,山东济南,250100 |
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| 基金项目： | "十二五"国家科技支撑计划项目，山东省科技发展计划 |
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| 摘 要： | 通过田间试验,研究了包膜尿素减量化施用对马铃薯产量、品质及土壤硝态氮含量的影响。结果表明,与习惯施肥处理相比,施用控释肥可以提高马铃薯的一级品率,并且能较好地保证马铃薯产量,马铃薯产量增加8.00%～25.59%,以100%控释肥增产效果最好。马铃薯品质方面,减氮控释肥处理能提高马铃薯品质。施用控释肥可以提高氮肥利用率10.53%～22.69%,其中,以减氮40%控释肥的氮肥利用率最高。在马铃薯土壤硝态氮含量方面,施用控释肥能降低硝态氮在各个土层的累积,其中减氮30%～40%控释肥处理土壤硝态氮的累积量最低。
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| 关 键 词： | 控释肥 马铃薯 产量 品质 土壤硝态氮 |
Effects of Decreasing Controlled- release Fertilizer Application Rate on Yield and Quality of Potato, and Soil Nitrate Nitrogen Content |
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| DONG Liang
,
ZHANG Yu-feng
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LIU Ping
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YU Shu-fang
,
YANG Li
,
YANG Peng.Effects of Decreasing Controlled- release Fertilizer Application Rate on Yield and Quality of Potato, and Soil Nitrate Nitrogen Content[J].Acta Agriculturae Jiangxi,2012,24(6):86-89. |
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| Authors: | DONG Liang ZHANG Yu-feng LIU Ping YU Shu-fang YANG Li YANG Peng |
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| Institution: | (Institute of Agricultural Resource and Environment,Shandong Academy of Agricultural Sciences;Key Laboratory of Invention and Manufacture of New Fertilizer,Ministry of Agriculture;Shandong Research Center of New-type Fertilizer Engineering and Technology,Ji’nan 250100,China) |
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| Abstract: | The effects of decreasing the application rate of controlled-release coated urea on the yield and quality of potato,and soil nitrate nitrogen content were studied through field experiments.The results indicated that the controlled-release fertilizer treatment increased the first grade rate of potato tube as compared with the traditional fertilization,enhanced potato yield by 8.00%~25.59%,and the best yield-increasing effect was obtained in the treatment of applying 100% controlled-release fertilizer.Decreasing the application rate of controlled-release fertilizer improved potato quality,increased the utilization rate of nitrogen fertilizer by 10.53%~22.69%,and the utilization rate of nitrogen fertilizer was the highest in the treatment of decreasing 40% nitrogen of controlled-release fertilizer.The controlled-release fertilizer treatment reduced soil nitrate nitrogen accumulation in each soil layer,and decreasing 30%~40% nitrogen of controlled-release fertilizer achieved the least soil nitrate nitrogen accumulation. |
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| Keywords: | Controlled-release fertilizer Potato Yield Quality Soil nitrate nitrogen |
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