干旱区研究

干旱区研究 ›› 2011, Vol. 28 ›› Issue (5): 795-799.

• 生物与生态 • 上一篇    下一篇

外源磷及腐植酸施用方式对灰漠土有效磷含量的影响

 王斌1, 朱靖蓉2, 许咏梅1, 刘骅1, 杨涛1, 马兴旺1   

    1. 新疆农业科学院 土壤肥料与农业节水研究所，新疆 乌鲁木齐 830091
    2. 新疆农业科学院 中心实验室，新疆 乌鲁木齐 830091
  • 收稿日期:2010-09-03 修回日期:2010-11-07 出版日期:2011-09-15 发布日期:2011-10-16
  • 基金资助:

    国家自然科学基金（41161054）；国家“十一五”科技支撑计划项目(2006BAD21B02、2006BAD25B09)；新疆维吾尔自治区“十一五”重大科技专项(200731133-2)；新疆自治区自然科学基金(2011211B42)；国家公益性行业专项（200903001-03）

Effect of Outersource Phosphorus Usage and Application Ways on the Contents of Available Phosphorus in Gray Desert Soil

 WANG  Bin1, ZHU  Jing-Rong2, XU  Yong-Mei1, LIU  Hua1, YANG  Tao1, MA  Xing-Wang1   

    1. Institute of Soil, Fertilizer and Watersaving Irrigation Research, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
    2. Central Lab, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
  • Received:2010-09-03 Revised:2010-11-07 Online:2011-09-15 Published:2011-10-16
  • Contact: 马兴旺.E-mail：maxw@xaas.ac.cn

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摘要： 通过室内培养方法，研究外源磷不同用量及腐植酸施用方式对灰漠土有效磷含量的影响。结果表明：随外源磷用量增加，土壤有效磷含量先增大后减小，土壤固磷率先增后减再增大，有效磷含量在土壤中有一个极大值平衡点；腐植酸及外源磷施用方式对土壤有效磷含量影响较大，单施腐植酸或单施外源磷均可增加土壤有效磷含量，且效果显著；腐植酸与外源磷的合理搭配施用，使土壤有效磷含量大于单施外源磷和单施腐植酸的方式；在腐植酸与外源磷施用过程中，先施外源磷再施腐植酸，土壤有效磷含量增加速度最快、土壤有效磷含量最高，差异达到显著水平。

关键词: 外源磷, 腐植酸, 施用方式, 灰漠土, 有效磷, 玛纳斯, 新疆

Abstract: The effect of outersource phosphorus usage and the application ways of humic acid on the content of available phosphorus in gray desert soil were studied in a laboratory. The results show that the content of soil available phosphorus was increased at first and then decreased with the increase of outersource phosphorus usage, and the soil phosphorus fixation rate was increased at first, and then decreased, but increased again with the increase of outersource phosphorus usage. There was a maximum balance point of available phosphorus in soil. The effect of application ways of outersource phosphorus and humic acid on soil available phosphorus content was significant. Soil available phosphorus content could be significantly increased by applying humic acid or outersource phosphorus. The effect of rational application of combining humic acid and outersource phosphorus on soil available phosphorus content was more significant than that by applying outersource phosphorus or humic acid only. Soil available phosphorus content could be increased most effectively by applying outersource phosphorus at first and then humic acid.

Key words: outersource phosphorus, humic acid, application way, gray desert soil, available phosphorus, Manas, Xinjiang

中图分类号: 

  • S153.6