湖北农业科学 ›› 2019, Vol. 58 ›› Issue (2): 50-52.doi: 10.14088/j.cnki.issn0439-8114.2019.02.011

• 资源·环境 • 上一篇    下一篇

石灰用量对不同酸度等级稻田土壤理化性状及产量的影响

孙玉平1, 谢小芳1, 李建华2, 刘毅3, 龚玲玲1   

  1. 1.分宜县农业技术推广中心,江西 新余 336600;
    2.分宜县湖泽镇农业综合服务站,江西 新余 336600;
    3.丰城市农业技术推广中心,江西 丰城 331100
  • 收稿日期:2018-07-16 出版日期:2019-01-25 发布日期:2019-11-26
  • 作者简介:孙玉平(1984-),女,江西分宜人,农艺师,硕士,主要从事土肥技术推广工作,(电话)15007907683(电子信箱)sunyuping0610@163.com。
  • 基金资助:
    国家测土配方施肥补贴项目

Effect of Lime Dosage on Soil Physicochemical Properties and Yield of Rice Fields with Different Acidity Grades

SUN Yu-ping1, XIE Xiao-fang1, LI Jian-hua2, LIU Yi3, GONG Ling-ling1   

  1. 1.Fenyi County Agricultural Technology Promotion Center,Xinyu 336600,Jiangxi,China;
    2.Fenyi County Huze Town Comprehensive Agricultural Service Station,Xinyu 336600,Jiangxi,China;
    3.Fengcheng City Agricultural Technology Promotion Center,Fengcheng 331100,Jiangxi,China
  • Received:2018-07-16 Online:2019-01-25 Published:2019-11-26

摘要: 在不同酸度等级(pH 5.13、4.41)的水稻田上进行了石灰用量对比试验,研究了不同石灰施用量对土壤理化性状和产量的影响。结果表明,在pH 5.13和4.41水稻田施用石灰后均能有效调节土壤酸度,pH随石灰用量的增加而逐渐升高,对养分供给有一定的改善作用,主要有利于有机质和碱解氮两者含量的提高,且增产效果显著,主要表现在有效分蘖数的增加,产量随石灰用量的增加先提高后减少,其中两个酸度等级水稻田施用600 kg/hm2石灰的处理增产率均最高,与对照相比,理论产量增产率分别为16.9%和23.4%,实际产量增产率分别为13.0%和18.4%。

关键词: 石灰, 土壤酸度, 水稻田, 土壤理化性状, 产量

Abstract: : A comparative test of lime dosage on rice field with different acidity grades(pH 5.13/4.41) was carried out to study the effects of different lime dosage on soil physicochemical properties and yield. The results showed that the application of lime can effectively regulate soil acidity on pH 5.13 and 4.41 rice fields, and pH increased with the increase of the amount of lime. And the nutrient supply improved to some extent,mainly improving the content of organic matter and alkali hydrolysable nitrogen. The yield increased significantly,mainly reflected in the increase of effective tiller number,and the yield increased first and then decreased with the increase of the amount of lime. The yield increasing rate of two acidity rice fields was the highest when 600 kg/hm2 lime was applied, and compared with the control, the increasing rate of theoretical yield were 16.9% and 23.4%,respectively,and the increasing rate of actual yield were 13.0% and 18.4%, respectively.

Key words: lime, soil acidity, rice field, soil physicochemical properties, yield

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