湖北农业科学 ›› 2020, Vol. 59 ›› Issue (15): 49-53.doi: 10.14088/j.cnki.issn0439-8114.2020.15.009

• 资源·环境 • 上一篇    下一篇

不同磷水平下接种解磷菌剂对生菜促生效应及土壤磷素形态的影响

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

  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:2019-09-20 出版日期:2020-08-10 发布日期:2020-09-24
  • 通讯作者: 陈 钢(1969-),女,湖北武汉人,正高职高级农艺师,博士,主要从事新型肥料及水肥一体化研究工作,(电话)027-61801775(电子信箱)chengang@webmail.hzau.edu.cn。
  • 作者简介:杜 雷(1985-),男,湖北咸宁人,农艺师,硕士,主要从事土壤微生物和植物营养研究,(电话)15007162708(电子信箱)dulei428@163.com。
  • 基金资助:
    国家土壤质量数据中心观测监测任务项目(ZX02S180300); 武汉市农业科学院2019年创新项目(CX201907)

Effects of phosphate-solubilizing bacteria inoculated with different phosphorus levels on lettuce growth and soil phosphorus forms

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

  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:2019-09-20 Online:2020-08-10 Published:2020-09-24

摘要: 通过盆栽试验研究了在4种不同施磷水平下施用解磷菌剂对生菜(Lactucas sativa L. var. ramosa Hort.)促生效应及土壤磷素形态的影响。结果表明,在土壤缺磷情况下,施用解磷菌剂能提高生菜叶和根的鲜重和干重,提高叶片净光合速率和蒸腾速率,增加植株磷素吸收量,提高生菜的品质和产量,并能减少土壤中全磷含量的积累,促进土壤有效磷的释放和土壤库中有效磷的积累。在土壤磷素丰富的情况下,施用解磷菌剂对生菜的生长和土壤磷素营养促进作用较弱。土壤添加磷肥量为0.375 g/kg,解磷菌剂对生菜的促生效应和土壤磷素释放效果最佳。解磷菌剂的应用不仅能减少农田土壤磷素的流失,减轻农田土壤磷面源污染的风险,还能为蔬菜生产保质保量,达到收益最大化。

关键词: 生菜(Lactucas sativa L. var. ramosa Hort.), 解磷菌剂, 磷水平, 生长, 产量

Abstract: A potting experiment was conducted to evaluate the effects of the phosphate-solubilizing bacteria on lettuce growth and soil phosphorus forms at different growth stages of lettuce (Lactuca sativa var. ramosa Hort.) under four application levels of calcium-superphosphate. The results showed, under the condition of soil phosphorus deficiency, that the application of the phosphate-solubilizing bacteria could improve the leaf fresh weight, root fresh weight,leaf dry weight and root dry weight of lettuce, increased the net photosynthetic rate and transpiration rate, enhanced the phosphorus absorption capacity in lettuce plants, improved the nutritional quality and yield of lettuce, reduced the accumulation of whole phosphorus content in soil, and promoted the release of effective phosphorus and the accumulation of effective phosphorus in soil reservoir. In the case of the soil phosphorus abundance, the application of the phosphate-solubilizing bacteria was weaker influence on the growth of lettuce and soil phosphorus. When the amount of phosphate fertilizer in the soil was 0.375 g/kg, the phosphate-solubilizing bacteria promoting growth effect of lettuce and the soil phosphorus to release were the best. The application of the phosphate-solubilizing bacteria not only decrease the loss of phosphorus in agricultural land, mitigate the risk of phosphorus non-point source pollution, but also guarante the quality and quantity for farmers to maximize vegetable yield.

Key words: lettuce(Lactucas sativa L. var. ramosa Hort.), phosphate-solubilizing bacteria, phosphorus level, growth, yield

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