湖北农业科学 ›› 2020, Vol. 59 ›› Issue (7): 28-32.doi: 10.14088/j.cnki.issn0439-8114.2020.07.006

• 资源·环境 • 上一篇    下一篇

不同施钾方式对生菜产量、品质及土壤状况的影响

李春萍1,2, 王素萍1, 杜雷1, 洪娟1,2, 黄翔1, 张贵友1, 张利红1, 叶莉霞1,2, 练志诚1, 姜利1, 陈钢1,2   

  1. 1.武汉市农业科学院环境与安全研究所,武汉 430345;
    2.华中农业大学资源与环境学院,武汉 430070
  • 收稿日期:2019-09-02 发布日期:2020-06-28
  • 通讯作者: 陈钢(1969-),女,正高职高级农艺师,博士,主要从事养分资源管理与新型肥料研发工作,(电子信箱)chengang@webmail.hzau.edu.cn。
  • 作者简介:李春萍(1994-),女,河南新县人,在读硕士研究生,研究方向为养分资源管理与环境监测,(电话)18738362619(电子信箱)cpli0101@163.com;
  • 基金资助:
    公益性行业(农业)科研专项经费项目(201203013); 湖北省技术创新重大项目(2018ABA099)

Effects of different potassium fertilization modes on yield, quality of lettuce and soil regime

LI Chun-ping1,2, WANG Su-ping1, DU Lei1, HONG Juan1,2, HUANG Xiang1, ZHANG Gui-you1, ZHANG Li-hong1, YE Li-xia1,2, LIAN Zhi-cheng1, JIANG Li1, CHEN Gang1,2   

  1. 1. Institute of Environment and Safety, Wuhan Academy of Agricultural Sciences, Wuhan 430345, China;
    2. College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
  • Received:2019-09-02 Published:2020-06-28

摘要: 为了获取适用于生菜(Lactucas sativa L. var. ramosa Hort.)生产的优质有机钾肥,设计了盆栽试验来研究施用不同种类的有机钾肥对生菜产量、品质及土壤微生物的影响。结果表明,施用钾肥能明显提高生菜的产量和品质,且明显改善了土壤酶活性、微生物数量和养分状况。在等施钾量情况下,化肥钾和沼液钾1∶1(T4)配施可以明显提高生菜的产量,比其他施钾处理增产6.34%~30.53%;化肥钾和生物菌肥钾1∶1处理的生菜维生素C和可溶性糖含量最高,T4次之。化肥钾和玉米钾或水稻秸秆钾1∶1配施可以显著改良土壤状况,其土壤酶活性和微生物状况均明显优于其他处理,化肥钾和沼液配施次之。因此,生菜种植中可以选择沼液或秸秆作为有机钾肥的来源。

关键词: 钾肥, 生菜(Lactucas sativa L. var. ramosa Hort.), 产量, 品质, 土壤状况

Abstract: In order to obtain high quality organic potassium fertilizer suitable for lettuce production, a potted lettuce experiment was set to study the effect of different organic potassium fertilizer application on lettuce (Lactucas sativa L. var. ramosa Hort.) yield, quality and soil potassiums. The results showed that the application of potassium fertilizer could significantly increase the yield and quality of lettuce, and significantly improve the soil enzyme activities, microbe quality and nutrient status. Under the condition of equal application of potassium, 1∶1 application of chemical potassium fertilizer and biogas slurry can significantly improve the yield of lettuce. Its yield increased by 6.34%~30.53% compared with other potassium fertilizer treatments. The content of VC and soluble sugar of the treatment 1∶1 application ratio of chemical potassium fertilizer and biological bacteria fertilize postassium was the highest,followed by T4. The combination of chemical potassium fertilizer and corn or rice straw potassium can significantly improve the soil conditions, the soil enzyme activity and microbial condition were significantly better than other treatments, the combination of chemical potassium fertilizer and biogas slurry were the second. Therefore, we can choose biogas slurry or straw as the source of organic potassium fertilizer in lettuce planting.

Key words: potassium fertilizer, lettuce(Lactucas sativa L. var. ramosa Hort.), yield, quality, soil regime

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