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生态学杂志 ›› 2001, Vol. ›› Issue (3): 9-11,8.

• 研究报告 • 上一篇    下一篇

麦秸还田耕层酚酸的时间变化及其对夏玉米幼苗生长和产量的影响

胡晓军1, 郑皓皓1, 贾敬业1, 吴萼1, 邢建军2, 张克银2   

  1. 1. 中国科学院生态环境研究中心,北京,100085;
    2. 平谷县裕口镇农技站,北京,101206
  • 收稿日期:2000-12-12 修回日期:2001-02-28 出版日期:2001-06-10
  • 基金资助:
    中国科学院资源环境局“九五”重点项目(KZ-952-S1-230)

Temporal Change of the Phenolic Acids in Soil with Returning Wheat Residues and Their Effects on the Seedling Growth and the Yield of Summer Corn

Hu Xiaojun1, Zheng Haohao1, Jia Jingye1, Wu E1, Xing jianjun2, Zhang Keyin2   

  1. 1. Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;
    2. Agriculture Technology station at Yukou Town, Pinggu County, Beijing 101206
  • Received:2000-12-12 Revised:2001-02-28 Online:2001-06-10

关键词: 花生, 盐胁迫, 耐盐指标, 隶属函数, 聚类分析

Abstract: At two fertility levels, the concentrations of phenolic acids in the field of summer corn with returning wheat residues were measured, and the growth of seedlings and the yield were investigated. The results showed that: the maximum release of the phenolic acid occurred at the 41st day after returning wheat residues. Fertilizer application could lower the content of the phenolic acid in the soil. Returning wheat residues had no obvious effects on the germination rate of the corn, but could inhibit the growth of seedlings.When no fertilizers were applied, returning wheat residues could increase the corn yield, Nand Pcontent in the seed and N and P uptake from cropland. However, the same result couldn’t be obtained when fertilizers were applied.The phenolicacids, which were produced in the process of decomposing of wheat residues, may cause such inhibitions.

Key words: peanut, salinity stress, salinity tolerance index, membership function, cluster analysis.

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