雪峰蜜桔“2+X”氮肥总量控制试验

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英文篇名：Total Amount Control of “2+X” Nitrogen Fertilizer for “Xuefeng” Honey Orange 作者：张琼 ; 邓澎达 ; 刘甜甜 ; 申利民 ; 董婧妮 ; 陈颖 ; 陈建军 ; 唐俊 英文作者：ZHANG Qiong;DENG Peng-da;LIU Tian-tian;SHEN Li-min;DONG Jing-ni;CHEN Ying;CHEN Jian-jun;TANG Jun;Shaoyang Academy of Agricultural Sciences;Cash Crop Management Station of Shaoyang Agriculture and Rural Affairs Bureau; 关键词：雪峰蜜桔 ; “2+X” ; 氮肥用量 ; 产量 ; 效益 英文关键词："Xuefeng" honey orange;;"2+X";;nitrogen amount;;yields;;benefit 中文刊名：HNNK 英文刊名：Hunan Agricultural Sciences 机构：邵阳市农业科学研究院;邵阳县农业农村局经作站; 出版日期：2019-05-27 出版单位：湖南农业科学 年：2019 期：No.404 基金：国家柑橘产业技术体系基金(CARS-26) 语种：中文; 页：HNNK201905013 页数：3 CN：05 ISSN：43-1099/S 分类号：56-58

摘要

为了探索雪峰蜜桔科学施肥方法、优化柑橘施肥方案,通过"2+X"氮肥总量控制试验,研究在不同氮量配比的施肥情况下对雪峰蜜桔产量和经济效益的影响。结果表明:与无氮区相比,常规施肥区、优化施肥区、70%优化氮区和130%优化氮区增产显著,分别增产658.0、720.4、595.0和628.0 kg/667m~2,增产率分别达47.6%、52.1%、43.0%和45.4%;从肥料的产投比来看,优化施肥区与70%优化氮区效益最好。分析可得氮肥投入以优化氮量较好,过多和过少都会影响雪峰蜜桔的产量和效益。
        In order to optimize the fertilization schedule of "Xuefeng" honey orange by the control of total amount of "2+X" nitrogen fertilizer, effects of different nitrogen ratios on yields and economic benefits of "Xuefeng" honey orange were studied. The results were listed below: compared with the non-nitrogen fertilization area, there were significant yield growths in the conventional fertilization area,optimum fertilization area(urea 450 kg/hm~2), 70% optimum nitrogen fertilization area(urea 315 kg/hm~2) and 130% optimum nitrogen fertilization area(urea 585 kg/hm~2), specifically, the yield increased by 9 870 kg/hm~2, 10 806 kg/hm~2, 8 925 kg/hm~2 and 9 420 kg/hm~2,respectively, and growth rate increased by 47.6%, 52.1%, 43.0%, and 45.4%, respectively. According to input-output ratio, optimum fertilization area had the best benefit, which was most favorable, too much or too little would reduce the yield and benefit of "Xuefeng"honey orange.

引文

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