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中国农学通报

中国农学通报 ›› 2013, Vol. 29 ›› Issue (27): 19-23.doi: 10.11924/j.issn.1000-6850.2012-2524

所属专题： 水稻

• 农学 农业基础科学 • 上一篇    下一篇

长沙县基于土壤养分状况的水稻适宜性评价

付艳 曹蓉 王峰 付湘奇   

  • 收稿日期:2012-07-17 修回日期:2013-01-02 出版日期:2013-09-25 发布日期:2013-09-25
  • 基金资助:
    国家测土配方施肥补贴项目

Evaluation of Rice Suitability Based on the Nutrient Contents on Changsha County

  • Received:2012-07-17 Revised:2013-01-02 Online:2013-09-25 Published:2013-09-25

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摘要： 湖南省是中国重要的双季稻产区，土壤状况直接影响到水稻的生产与区域布局，通过对长沙县主要类型水稻土基本养分状况调查分析，为配方施肥提供依据；将耕地依据水稻种植适宜性进行分类，为长沙县水稻生产区域布局提供技术支持。对长沙县主要的50余种类型稻田土壤进行取样分析其基本理化性状。结果表明，全县水田土壤pH平均含量为5.34；有机质含量平均31.53 g/kg。碱解氮含量平均151.64 mg/kg，有效磷平均含量为21.84 mg/kg，速效钾平均含量为84.01 mg/kg，缓效钾平均含量为198.89 mg/kg根据土壤养分状况，对全县土壤水稻适宜性进行分析，全县高度适宜、适宜、基本适宜的稻田面积分别占水田面积的55.46%、21.25%、19.49%，不适宜仅为3.79%，说明长沙县的土壤状况较适合水稻的生产。

关键词: 响应, 响应

Abstract: Hunan Province is an important double cropping of rice-producing areas, the soil conditions directly affect the rice production and regional distribution, survey analysis of the basic nutrient status of the major types of paddy soils in Changsha County, to provide a basis for testing and fertilizer; rice cultivation of arable land in accordance with appropriate classification, to provide technical support for the layout of the rice production areas in Changsha County. Sampling and analysis of the basic physical and chemical properties of more than 50 types of paddy soil in Changsha County. The results showed that, the average content of the paddy soil pH 5.34; the average 31.53 g/kg of the organic matter content. The average nitrogen content was mg/kg, the average available phosphorus content of 21.84 mg/kg, the average potassium content of 84.01 mg/kg, the average slowly available potassium content was 198.89 mg/kg. According to the soil nutrient status, analyzed the suitability of the soil of rice in the county, the county is highly suitable, suitable, basic and appropriate area of paddy fields accounted for 55.46%, 21.25%, 19.49%. Unsuitable only 3.79%, indicating that the Changsha County soil conditions were suitable for rice production.