| 控释肥减施对冬小麦产量、氮效率及土壤剖面硝态氮的影响 |
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| 引用本文： | 朱晓霞,刘兆辉,江丽华,谭德水,郑福丽,林海涛.控释肥减施对冬小麦产量、氮效率及土壤剖面硝态氮的影响[J].山东农业科学,2012,44(3):63-67. |
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| 作者姓名： | 朱晓霞 刘兆辉 江丽华 谭德水 郑福丽 林海涛 |
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| 作者单位： | 1. 青岛农业大学,山东青岛266109;山东省农业科学院农业资源与环境研究所,山东济南250100
2. 山东省农业科学院农业资源与环境研究所,山东济南,250100 |
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| 基金项目： | 国家小麦产业技术体系(CARS-03)与公益性行业(农业)科研专项(201103003)资助 |
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| 摘 要： | 试验通过对控释氮肥减量且随小麦播种一次性施用(CRF)与农民习惯施肥(FP)及优化施肥(OPT)进行对比研究,结果表明:(1)控释氮肥减量施用处理小麦群体及产量构成因素整体优于FP和OPT处理;(2)CRF处理能够保持小麦产量的稳定或略有增产趋势,其氮素表观回收率和氮偏生产力较FP处理分别提高30.3%和57.2%;(3)CRF处理土壤硝态氮含量在各个深度土层中含量均低于OPT和FP处理,极大降低硝酸盐在雨季来临时向土壤深层次淋溶的风险。
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| 关 键 词： | 控释氮肥 减量施肥 小麦产量 氮效率 硝态氮 |
Effects of Decreasing Application Amount of Control - Released Fertilizer on Winter Wheat Yield, Nitrogen Efficiency and NO3ˉ -N in Soil |
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| ZHU Xiao-xia
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LIU Zhao-hui
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JIANG Li-hua
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TAN De-shui
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ZHENG Fu-li
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LIN Hai-tao.Effects of Decreasing Application Amount of Control - Released Fertilizer on Winter Wheat Yield, Nitrogen Efficiency and NO3ˉ -N in Soil[J].Shandong Agricultural Sciences,2012,44(3):63-67. |
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| Authors: | ZHU Xiao-xia LIU Zhao-hui JIANG Li-hua TAN De-shui ZHENG Fu-li LIN Hai-tao |
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| Institution: | 1.Qingdao Agricultural University,Qingdao 266109,China;2.Institute of Agricultural Resources and Environment,Shandong Academy of Agricultural Sciences,Jinan 250100,China) |
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| Abstract: | The test was conducted to compare the effects of reducing application rate of control-released fertilizer(CRF) and all as base fertilizer,farmer’s traditional fertilization(FP) and optimized fertilization(OPT).The results showed that the wheat population and yield components of CRF treatment were better than those of FP and OPT treatments.The CRF treatment could keep the wheat yield stable or slightly increasing,and its N apparent recovery efficiency and N partial factor productivity increased by 30.3% and 57.2% respectively compared to FP treatment.The nitrate nitrogen content in each soil depth of CRF treatment was less than that of OPT and FP treatments,which greatly reduced the risk of nitrate leaching to the deep soil in the rainy season. |
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| Keywords: | Control-released nitrogen fertilizer Reducing fertilization amount Wheat yield Nitrogen efficiency NO-3--N |
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