| 配方施肥对苜蓿生产性能的影响 |
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| 引用本文： | 肖燕子,乌仁其其格,孟凯,张培青,米福贵.配方施肥对苜蓿生产性能的影响[J].中国草地学报,2020(1):174-178. |
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| 作者姓名： | 肖燕子 乌仁其其格 孟凯 张培青 米福贵 |
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| 作者单位： | 内蒙古自治区草甸草原生态系统与全球变化重点实验室;内蒙古农业大学草原与资源环境学院 |
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| 基金项目： | 国家公益性行业(农业)科研专项项目“土默特平原苜蓿高效种植技术研究与示范”(201403048-05);呼伦贝尔市农牧林渔种业自主创新项目“呼伦贝尔草业生态资源开发与利用平台建设”(2016C-02)。 |
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| 摘 要： | 针对内蒙古乌兰察布市凉城县中苜2号苜蓿规模化种植中肥料利用率低、施肥量和施肥比例不确定等问题,通过“3414”测土配方施肥设计,并结合理论优化模型及计算机模拟寻优技术,筛选中苜2号栽培的最佳施肥量和施肥配比。结果表明:氮、磷、钾不同施肥配比对中苜2号苜蓿生产性能有明显影响,处理N2P2K2株高最高,为22.76cm,较对照处理N0P0K0高4.39cm;冠幅最大处理是N3P2K2,为21.43cm,较对照处理N0P0K0高5.76cm。施肥后苜蓿干草产量增产幅度为0.24%~16.75%,增产率最高为处理N2P3K2,产量10981.59kg/hm^2,最低为处理N2P2K3,产量9428.78kg/hm^2。通过模拟寻优分析得到最优施肥配比为氮含量60.80kg/hm^2、磷含量52.12kg/hm^2、钾含量36kg/hm^2,产量为10363.74kg/hm^2;最优施肥配比区为氮含量60.03~61.60kg/hm^2、磷含量51.37~52.96kg/hm^2、钾含量35.63~36.25kg/hm^2,产草量10344.92~10382.56kg/hm^2。
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| 关 键 词： | 苜蓿 产量 配方施肥 |
Effect of Formula Fertilizer on the Productivity of Alfalfa |
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| XIAO Yan-zi,Wurenqiqige,MENG Kai,ZHANG Pei-qing,MI Fu-gui.Effect of Formula Fertilizer on the Productivity of Alfalfa[J].Chinese Journal of Grassland,2020(1):174-178. |
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| Authors: | XIAO Yan-zi Wurenqiqige MENG Kai ZHANG Pei-qing MI Fu-gui |
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| Institution: | (Meadow Steppe Ecosystem and Global Change Key Laboratory of Inner Mongolia,Hulunbuir 021008,China;College of Grassland Resource and Environmental Science,Inner Mongolia Agricultural University,Hohhot 010011,China) |
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| Abstract: | Taking the problems of low fertilizer utilization rate,uncertain amount and proportion of fertilization in large-scale planting of alfalfa in Liangcheng area of Inner Mongolia.we selected the best fertilization amount and proportion for cultivating alfalfa(Medicago sativa L.cv.Zhongmu No.2)through“3414”soil testing formula fertilization experiment design,theoretical optimization model and computer simulation optimization techniques.The results showed that the different fertilization ratios of N,P and K had significant effects on the production performance of alfalfa.the highest plant height of treatment N2P2K2 was 22.76cm,which was 4.39cm higher than control treatment N0P0K0;N3P2K2 had the largest crown was 21.43cm,which was 5.76cm higher than the N0P0K0.The yield of alfalfa hay increased by 0.24%~16.75%,the highest yield was 10981.59kg/hm^2 at treatment N2P3K2,and the lowest yield of N2P2K3 was 9428.78kg/hm^2.The optimal fertilization ratio was 60.80kg/hm^2 for N,52.12kg/hm^2 for P,36kg/hm 2 for K,the yield was 10363.74kg/hm^2.The optimal fertilization ratio was 60.03~61.60kg/hm^2 for N,51.37~52.96kg/hm^2 for P,35.63~36.25kg/hm^2 for K,and the yield was 10344.92~10382.56kg/hm^2. |
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| Keywords: | Alfalfa Yield Formula fertilization |
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