江汉大学学报(自然科学版) ›› 2015, Vol. 43 ›› Issue (5): 477-480.doi: 10.16389/j.cnki.cn42-1737/n.2015.05.019

• 环境与土壤科学 • 上一篇    

不同种植模式各土层理化性状研究

杨霖1,钟清清1,张哲1,章爱群*1,2   

  1. 1. 湖北工程学院 生命科学技术学院;2. 特色果蔬质量安全控制湖北省重点实验室,湖北 孝感 432000
  • 出版日期:2015-10-28 发布日期:2015-11-02
  • 通讯作者: 章爱群
  • 作者简介:杨霖(1992—),女,硕士生,研究方向:作物环境生态。
  • 基金资助:
    湖北省自然科学基金资助项目(2014CFB452);湖北工程学院创新团队项目(T2014001)

Physical and Chemical Properties of Soil Layers Under Different Planting Patterns

YANG Lin1,ZHONG Qingqing1,ZHANG Zhe1,ZHANG Aiqun*1,2   

  1. 1. College of Plant Science and Technology of Hubei Engineering University,Xiaogan 432000,Hubei,China;2. Key Laboratory of Quality Safety Control of Characteristic Fruits and Vegetables,Xiaogan 432000,Hubei,China
  • Online:2015-10-28 Published:2015-11-02
  • Contact: ZHANG Aiqun
  • About author:章爱群(1974—),女,副教授,博士,研究方向:植物生理生态。E-mail:munkchoria@tom.com

摘要: 对湖北省孝感市郊15个农田土壤进行取样,测定了两个土层即表层土壤(0~20 cm)和亚表层土壤(20~40 cm)的pH 值、碱解氮、全磷、速效磷、有效钾的含量,并对两层土壤的肥力状况进行分析比较。结果表明,孝感市郊农田表层土壤pH 值为微酸性到酸性;碱解氮含量为41. 28~63. 89 mg/kg,处于中等水平;表层土壤全磷高达620. 48~1164. 68 mg/kg,旱田速效磷含量较高,为73. 84~181. 42mg/kg,能够满足植株生长需求,水田速效磷含量为22. 94~48. 61 mg/kg,部分水田土壤供磷不足;有效钾含量只有11. 56~40. 59 mg/kg,处于较低水平。两土层间pH值、碱解氮、有效钾含量均达到显著差异水平。不同种植模式土壤的表层土壤速效磷含量均显著高于亚表层速效磷含量,但旱田土层间的速效磷含量变幅高达2. 1,远远大于水田层间速效磷含量比1. 2。旱田表层土壤全磷含量均显著高于亚表层,而水田中表层土壤的全磷含量却显著低于亚表层含量。

关键词: 种植模式, 土层, 理化性状

Abstract: Soil samples were collected from 15 farmlands of the Xiaogan suburb. Soil layers were divided into 0-20 cm and 20-40 cm layers to determine pH value,alkali solution nitrogen,total phosphorus,available phosphorus,effective potassium content effectively,and to analyze the fertility conditions of soil of two layers. The results showed that pH value of the Xiaogan suburb farmland surface soil was slight acidic to acidic;Alkali solution nitrogen content was 41. 28-63. 89 mg/kg which was in the medium level;Total phosphorus of surface soil was as high as 620.48-1 164. 68 mg/kg,available phosphorus content of dry farmland was 73. 84- 181. 42 mg/kg,and it could meet the demand of plant growth,available phosphorus content of paddy farmland was 22. 94-48. 61 mg/kg,partial paddy farmland existed phosphorus deficiency;Effective potassium content was only 11. 56-40. 59 mg/kg which was in a low level. The pH value,alkali solution nitrogen,and effective potassium content of two kinds of soil layers had significant difference. Available phosphorus content of surface soil of different planting patterns were significantly higher than those of the subsurface soil,but the available phosphorus content of dry farmland soil ranged as high as 2.1,which was far more than paddy field′s available phosphorus content ratio 1. 2 between the layers. Total phosphorus content of dry filed surface soil was significantly higher than that of the subsurface soil,and the total phosphorus content of surface soil in the paddy field was significantly lower than that of the subsurface soil.

Key words: planting patterns, soil layers, physical and chemical properties

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