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中国农学通报

中国农学通报 ›› 2021, Vol. 37 ›› Issue (26): 93-97.doi: 10.11924/j.issn.1000-6850.casb2020-0744

所属专题： 土壤重金属污染； 水稻

• 资源·环境·生态·土壤·气象 • 上一篇    下一篇

农用石灰在酸性及镉污染稻田中试效果

方克明1,2(), 肖欣3, 王美玲4, 张露1, 汪璐1, 秦蕾影5, 章明1, 江麟2, 朱安繁6()   

  1. 1江西省景德镇市农牧渔业科学研究所,江西景德镇 333000
    2江西省景德镇市土肥站,江西景德镇 333000
    3江西省林业调查规划研究院,南昌 330046
    4景德镇市水稻畜禽良种示范繁殖场,江西景德镇333000
    5江西省景德镇市农产品质量安全检测中心,江西景德镇 333000
    6江西省土壤肥料技术推广站,南昌 330046
  • 收稿日期:2020-12-02 修回日期:2021-03-05 出版日期:2021-09-15 发布日期:2021-09-30
  • 通讯作者: 朱安繁
  • 作者简介:方克明,男,1962年出生,江西鄱阳人,推广研究员,学士,主要从事土壤肥料技术推广与肥料管理工作。通信地址：333000 江西省景德镇市瓷都大道11号 江西省景德镇市农牧渔业科学研究所,Tel：0798-8382004,E-mail： tfzfkm1128@126.com。
  • 基金资助:
    景德镇市科技计划项目“石灰在酸重稻田施用效果研究”(ny20145434)

Intermediate Test Effect of Agricultural Lime on Acid and Cadmium Contaminated Paddy Field

Fang Keming1,2(), Xiao Xin3, Wang Meiling4, Zhang Lu1, Wang Lu1, Qin Leiying5, Zhang Ming1, Jiang Lin2, Zhu Anfan6()   

  1. 1Jingdezhen Research Institute of Agriculture, Animal Husbandry and Fishery, Jingdezhen Jiangxi 333000
    2Soil and Fertilizer Station of Jingdezhen City, Jingdezhen Jiangxi 333000
    3Jiangxi Forest Inventory and Planning Research Institute, Nanchang 330046
    4Jingdezhen Improved Variety Demonstration Breeding Farm of Rice, Livestock and Poultry, Jingdezhen Jiangxi 333000
    5Agricultural Products Quality and Safety Testing Center of Jingdezhen City Jiangxi Province, Jingdezhen Jiangxi 333000
    6Soil and Fertilizer Technique Popularization Station of Jiangxi Province, Nanchang 330046
  • Received:2020-12-02 Revised:2021-03-05 Online:2021-09-15 Published:2021-09-30
  • Contact: Zhu Anfan

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摘要：

在往年正规试验的基础上开展本次简比中间试验,以进一步验证在酸性及镉污染稻田施用石灰对调酸改土、水稻增产和降低稻谷镉量的效果。中试结果显示：在供试稻田土壤pH 5.64情况下,施用石灰平均750 kg/hm2能提升土壤pH 0.153个单位。施用石灰3000 kg/hm2比未施用石灰平均增产稻谷1529.98 kg/hm2,增产率14.74%,t检验达极显著水平。施用石灰3000 kg/hm2比未施用石灰平均增收1738.15元/hm2。增产的主要原因是促进了水稻长势和分蘖,增加了每蔸谷重。中试结果显示,施用石灰3000 kg/hm2比未施用石灰可降低稻谷镉量0.21 mg/kg,降低率37.8%,t检验达极显著水平。中试再次表明,在酸性及镉污染稻田中施用石灰对调酸改土、增产增收和降低稻谷镉量都具有良好效果,可以因地制宜加以科学推广应用。

关键词: 农田, 土壤酸化, 镉污染, 土壤改良, 农用石灰, 水稻

Abstract:

On the basis of previous regular experiments, this simple contrast intermediate test was carried out to further verify the effect of agricultural lime on acid soil improvement, rice yield increase and rice cadmium reduction in acid and cadmium contaminated paddy fields. The results showed that under the condition of pH 5.64 in the tested paddy field, liming of an average of 750 kg/hm2 raised the pH of the soil by 0.153 units. The average yield of rice increased by 1529.98 kg/hm2 with lime application of 3000 kg/hm2 compared with that without lime application, and the yield increase rate was 14.74%, the t-test reached an extremely significant level. The average income increased by 1738.15 yuan/hm2with lime application of 3000 kg/hm2 than that without lime application. The main reason for the yield increase was that lime application promoted the growth and tillering of rice and increased the grain weight per plant. The lime application of 3000kg/hm2 reduced the cadmium content of rice by 0.21 mg/kg, with a reduction rate of 37.8%, and the t-test reached an extremely significant level. The results indicated once again that agricultural lime application in acid and cadmium contaminated paddy fields could have good effects on improving acid soil, increasing both production and income, and reducing cadmium content in rice, which could be popularized according to local conditions.

Key words: farmland, soil acidification, cadmium pollution, soil improvement, agricultural lime, rice

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