| 交替隔沟灌溉下施肥方式对高粱产量及氮素利用率影响 |
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| 引用本文： | 曹昌林,董良利,宋旭东,史丽娟,白文斌.交替隔沟灌溉下施肥方式对高粱产量及氮素利用率影响[J].山西农业科学,2012,40(4):361-364. |
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| 作者姓名： | 曹昌林 董良利 宋旭东 史丽娟 白文斌 |
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| 作者单位： | 山西省农业科学院高粱研究所,山西晋中,030600 |
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| 基金项目： | 山西省科技攻关项目，山西省农业科学院科技攻关项目 |
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| 摘 要： | 为探索高粱在交替隔沟灌溉条件下不同施肥方式对产量及氮素利用率的影响,采用随机区组设计进行了研究。结果表明,交替隔沟灌溉条件下,氮素可以一次性底施,但高粱产量和氮素利用率有所降低;将氮素总量的30%底施,70%拔节期追施,则可明显提高高粱产量和氮素利用率,与传统种植法相比,产量提高10.8%,氮素利用率提高22.7%。
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| 关 键 词： | 隔沟灌溉 施肥方式 高粱 产量 氮素利用率 |
Effect of Fertilization Modes in Conditions of Alternate Furrow Irrigation on Yield and N Efficiency in Sorghum |
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| CAO Chang-lin
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DONG Liang-li
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SONG Xu-dong
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SHI Li-juan
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BAI Wen-bin.Effect of Fertilization Modes in Conditions of Alternate Furrow Irrigation on Yield and N Efficiency in Sorghum[J].Journal of Shanxi Agricultural Sciences,2012,40(4):361-364. |
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| Authors: | CAO Chang-lin DONG Liang-li SONG Xu-dong SHI Li-juan BAI Wen-bin |
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| Institution: | (Institute of Sorghum,Shanxi Academy of Agricultural Sciences,Jinzhong 030600,China) |
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| Abstract: | To explore the effect of fertilization modes in conditions of alternate furrow irrigation on yield and N fertilizer utilization efficiency in sorghum,study was carried out in randomized block design.The results showed that in conditions of alternate furrow irrigation,N fertilizer single basal application could be applied,but the yield and nitrogen utilization rate reduced;While 30% nitrogen as base fertilizer and 70% top dressing at jointing stage,significantly improved yield and nitrogen efficiency.Compared with traditional fertilization method,yield increased by 10.8% and the utilization rate of nitrogen increased by 22.7%. |
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| Keywords: | alternate furrow irrigation fertilization mode sorghum yield N efficiency |
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