欢迎访问《中国农学通报》,

中国农学通报 ›› 2017, Vol. 33 ›› Issue (27): 112-116.doi: 10.11924/j.issn.1000-6850.casb16080008

所属专题: 园艺 耕地保护

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

不同土壤改良剂对设施蔬菜土壤酸化的改良效果研究

李丹   

  1. 杭州市植保土肥总站
  • 收稿日期:2016-08-02 修回日期:2016-08-31 接受日期:2016-09-18 出版日期:2017-10-09 发布日期:2017-10-09
  • 通讯作者: 李丹
  • 基金资助:
    杭州市科委重大科技创新专项“标准农田地力提升关键技术研究与集成应用”(20131812A01)。

Improvement Effects of Different Soil Conditioners on Acidity of Greenhouse Vegetable

  • Received:2016-08-02 Revised:2016-08-31 Accepted:2016-09-18 Online:2017-10-09 Published:2017-10-09

摘要: 针对我市设施蔬菜土壤酸化严重等问题,采用大田试验,研究石灰氮、生石灰、含腐殖酸水溶肥、田师傅、酸易客等土壤改良剂对设施蔬菜生长特性、土壤理化性状的影响。结果表明:各土壤改良剂都能提高土壤pH值,减少酸性土壤交换性酸总量,降低酸性土壤活性铝对辣椒的毒害作用,提高辣椒品质,增加辣椒产量;田师傅土壤调理剂虽改良土壤酸化效果显著,但持续时间不长;生石灰和含腐殖酸水溶肥配施处理既能有效改良土壤酸化,且改良时间持续较长,其中T4(生石灰900 kg/hm2 含腐殖酸水溶肥37.5kg/hm2 )改良效果最佳,施用两季后,与空白对照比较,土壤pH值提高了1.70个单位,土壤交换性酸总量降低了90.25%,土壤交换性Al3 降低了93.59%,明显降低辣椒铝胁迫的风险,辣椒增产32.36%、单果重增加13.04%、株高增加15.99%、根茎粗增加29.73%。

关键词: 黑木耳, 黑木耳, 好食脉孢霉, ITS, 拮抗效果

Abstract: Aimed at the problem of soil acidification in greenhouse vegetable soil in Jiande, the authors studied the effect of lime nitrogen, lime, humic acid water-soluble fertilizer, Tianshifu and Suanyike on the characteristics of vegetable growth and soil physicochemical properties by field experiments. The results showed that all soil conditioner could increase soil pH value and reduce the amount of soil exchangeable acidity, and alleviated the Al3+ toxicity to pepper and improve the quality and yield of pepper; Tianshifu could significantly improve soil acidification, but it did not last for a long time; the combined application of lime and humic acid water-soluble fertilizer could effectively improve soil acidification for a long time. Among all of the treatments, T4 (lime 900 kg/hm2 + humic acid water-soluble fertilizer 37.5kg/hm2) had the most prominent effect, compared with CK, soil pH value increased by 1.70 units, soil exchangeable acidity and soil exchangeable Al3+ decreased by 90.25% and 93.59% after two seasons’application. Moreover, the treatment of T4 could significantly lower the risk of Al stress. Therefore, the yield, fruit weight, plant height and root diameter of pepper increased by 32.36%, 13.04%, 15.99% and 29.73%, respectively.

中图分类号: