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中国农学通报 ›› 2022, Vol. 38 ›› Issue (17): 98-102.doi: 10.11924/j.issn.1000-6850.casb2021-0654

所属专题: 生物技术 土壤重金属污染 水稻 园艺 耕地保护

• 资源·环境·生态·土壤·气象 • 上一篇    下一篇

不同改良剂对元胡-水稻轮作酸化土壤改良效果研究

杨小敏(), 司华, 高鹏, 简红忠, 杨霄, 崔宁, 余正军, 张庚龙   

  1. 汉中市农业技术推广与培训中心,陕西汉中 723000
  • 收稿日期:2021-06-28 修回日期:2021-10-05 出版日期:2022-06-15 发布日期:2022-07-08
  • 作者简介:杨小敏,女,1989年出生,陕西咸阳人,农艺师,硕士研究生,主要从事土壤改良与耕地质量提升技术推广工作。通信地址:723000 陕西省汉中市汉台区东塔路356号,Tel:0916-2214037,E-mail: xmyang07@163.com
  • 基金资助:
    陕西省2020年省级农业专项资金项目-耕地保护与质量提升项目

Improvement Effect of Different Ameliorants on Acidified Soil of Rhizoma corydalis - Rice Rotation

YANG Xiaomin(), SI Hua, GAO Peng, JIAN Hongzhong, YANG Xiao, CUI Ning, YU Zhengjun, ZHANG Genglong   

  1. Hanzhong Agricultural Technology Extension and Training Center, Hanzhong, Shaanxi 723000
  • Received:2021-06-28 Revised:2021-10-05 Online:2022-06-15 Published:2022-07-08

摘要:

探究不同改良剂对元胡-水稻轮作下酸化农田土壤的改良效果。以元胡-水稻轮作为研究对象,设置元胡单季施用改良剂和元胡-水稻两季均施用改良剂处理下,分析作物收获后土壤化学性状和作物产量经济效益。结果表明:石灰、钙镁磷肥、酸性土壤调理剂在两季作物上连续施用,提升土壤pH、交换性钙、两季作物产量的效果高于在元胡单季施用;连续施用钙镁磷肥和酸性土壤调理剂能补充土壤钾素、提高土壤交换性镁含量;连续施用钙镁磷肥还能显著增加土壤有效磷和两季作物纯效益。综合来看,在元胡-水稻轮作酸化农田土壤改良生产实践中,推荐在元胡季施用1500 kg/hm2、水稻季施用 750 kg/hm2钙镁磷肥,以获得良好的改良效果和经济效益。

关键词: 元胡, 水稻, 改良剂, 单季施用, 连续施用, 土壤化学性状, 经济效益

Abstract:

To explore the improvement effect of different ameliorants on acidified soil of Rhizoma corydalis - rice rotation, we took the rotation as the research object, set treatments of applying different soil ameliorants to Rhizoma corydalis single-cropping and Rhizoma corydalis - rice rotation, and then analyzed the soil chemical properties and the economic benefits of crop yield after harvest. The results showed that continuous application of lime, calcium-magnesium-phosphate fertilizer and conditioner of acidic soil to the Rhizoma corydalis - rice rotation could improve soil pH and exchangeable calcium, and the yield of the two crops under the rotation was significantly higher than that of single-cropping application of ameliorants to Rhizoma corydalis. The continuous application of calcium-magnesium-phosphate fertilizer and acidic soil conditioner could supplement soil potassium and increase soil exchangeable magnesium content. The continuous application of calcium-magnesium-phosphate fertilizer could also significantly increase soil available phosphorus and the pure benefits of the two crops. On the whole, in the production practice of improving acidified soil of Rhizoma corydalis - rice rotation, it is recommended to apply calcium-magnesium-phosphate fertilizer of 1500 kg/hm2 in Rhizoma corydalis cropping and 750 kg/hm2 in rice cropping to obtain good soil improvement effects and economic benefits.

Key words: Rhizoma corydalis, rice, soil ameliorant, single-cropping application, continuous application, soil chemical properties, economic benefit

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