湖北农业科学 ›› 2019, Vol. 58 ›› Issue (9): 58-60.doi: 10.14088/j.cnki.issn0439-8114.2019.09.013

• 资源·环境 • 上一篇    下一篇

Ca(OH)2对酸性土壤玉米生长及土壤养分的影响

王孟1,2, 张军强3, 姜汉峰1,2, 商水根1, 黄登武4, 黄飞跃3, 徐印印1,2, 姜硕琛1,2, 邢丹英1,2, 向永生3   

  1. 1.长江大学农学院,湖北 荆州 434025;
    2.主要粮食作物产业化湖北省协同创新中心,湖北 荆州 434025;
    3.恩施州土壤肥料工作站,湖北 恩施 445000;
    4.建始县高坪镇农业技术服务中心,湖北 建始 445305
  • 收稿日期:2018-11-23 出版日期:2019-05-10 发布日期:2019-12-05
  • 通讯作者: 邢丹英,教授,博士,主要从事作物富硒栽培研究,(电子信箱)xingdy_2006@126.com;向永生,正高职高级农艺师,主要从事土壤肥料研究工作,(电子信箱)840592699@qq.com。
  • 作者简介:王 孟(1992-),女,湖北恩施人,在读硕士研究生,研究方向为作物学,(电话)13264669902(电子信箱)twodream@yeah.net;张军强(1983-),男,河南渑池人,农艺师,主要从事土壤肥料研究工作,(电话)13403002136(电子信箱)284377993@qq.com
  • 基金资助:
    国家公益性行业(农业)科研专项(201303106);湖北省富硒产业研究院项目(XKJ-201501-15)

Effects of Ca(OH)2 on corn growing and soil nutrients in acidic soil

WANG Meng1,2, ZHANG Jun-qiang3, JIANG Han-feng1,2, SHANG Shui-gen1, HUANG Deng-wu4, HUANG Fei-yue3, XU Yin-yin1,2, JIANG Shuo-chen1,2, XING Dan-ying1,2, XIANG Yong-sheng3   

  1. 1.College of Agronomy,Yangtze Uniersity,Jingzhou 434025,Hubei,China;
    2.Hubei Center for Collaborative Innovation of Main Grain Industry,Jingzhou 434025,Hubei,China;
    3.Soil and Fertilizer Workstation of Enshi Prefecture,Enshi 445000,Hubei,China;
    4.Agricultural Technology Service Center in Jianshi Gaoping Town,Jianshi 445305,Hubei,China
  • Received:2018-11-23 Online:2019-05-10 Published:2019-12-05

摘要: 对紫色页岩发育的土壤(pH 5.2)施用Ca(OH)2,探讨施用量对玉米(Zea mays L.)生长及土壤的影响。结果表明,施用Ca(OH)2对酸化土壤的玉米生产有积极效果。当Ca(OH)2施用量为0、750、1 500、2 250、3 000 kg/hm2时,玉米产量分别为7 134.9、7 296.9、7 533.9、7 371.9、7 273.8 kg/hm2,两者呈二次曲线(y= -0.000 1x2+0.397 2x+7 120.4),方程达显著水平(R2=0.852 9,P<0.05);经计算,当Ca(OH)2施用量为1 986 kg/hm2时,产量可达到最高值(8 303.66 kg/hm2)。施用Ca(OH)2能够提高酸化土壤的pH,施用量与土壤pH呈线性关系(y=0.009 7x+5.962 0),方程达极显著水平(R2=0.953 4,P<0.01),施用量为1 500 kg/hm2时,土壤呈中性。施用Ca(OH)2对土壤养分含量也有一定影响,Ca(OH)2施用量与碱解氮含量呈三次曲线(y=-8×10-9x3+3×10-5x2-0.025x+111.87),方程达显著水平(R2=0.914 4,P<0.05);Ca(OH)2施用量与速效钾含量呈二次曲线(y=6×10-6x2-0.023 1x+73.257),方程达极显著水平(R2=0.976 1,P<0.01);Ca(OH)2施用量与有机质含量呈二次曲线(y=-4×10-7x2+0.000 2x+29.471),方程达显著水平(R2=0.918 1,P<0.05)。

关键词: Ca(OH)2, 酸化土壤, 玉米(Zea mays L.), 土壤pH, 土壤养分

Abstract: Ca(OH)2 was applied to the purple shale-developed soil (pH 5.2) in order to study the effects of application rate on maize(Zea mays L.) growth and soil. The results showed that, the application of Ca(OH)2 had positive effect on maize production in acidified soil. When the application rate was 0 kg/hm2,750 kg/hm2,1 500 kg/hm2,2 250 kg/hm2,3 000 kg/hm2, the corn yield was 7 134.9 kg/hm2,7 296.9 kg/hm2,7 533.9 kg/hm2,7 371.9 kg/hm2,7 273.8 kg/hm2, resepectiely. The relation between the Ca(OH)2 application rate and yield was a quadratic cure (y=-0.000 1x2+0.397 2x+7 120.4), and it reached significant level (R2=0.852 9,P<0.05). The maximum yield(8 303.66 kg/hm2) can be obtained when the application of Ca(OH)2 was 1 986 kg/hm2 by computation. The application of Ca(OH)2 could effectively increase pH for acidified soil. There was a linear relationship between the Ca(OH)2 application amount and pH in the soil (y=0.009 7x+5.962 0), and it reached remarkable significant level(R2=0.953 4,P<0.01). When the application rate was 1 500 kg/hm2, soil was neutral. There was a significant correlation between the application amount of Ca(OH)2 and the available nitrogen (R2=0.914 4,P<0.05), which was a binary cubic equation(y=-8×10-9x3+3×10-5x2-0.025x+111.87). The relation between the amount of Ca(OH)2 and available potassium showed a significant correlation (R2=0.976 1,P<0.01), which was a binary quadratic curve(y=6×10-6x2-0.023 1x+73.257). And there was a significant correlation between Ca(OH)2 application rate and the organic matter (R2=0.918 1,P<0.05), which was a binary quadratic cure(y=-4×10-7x2+0.000 2x+29.471).

Key words: Ca(OH)2, acidified soil, maize(Zea mays L.), soil pH, soil nutrients

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