[1]王秋君,马艳,郭德杰,等.设施蔬菜土壤养分状况分析及综合评价[J].江苏农业学报,2019,(03):624-630.[doi:doi:10.3969/j.issn.1000-4440.2019.03.017]
　WANG Qiu-jun,MA Yan,GUO De-jie,et al.Analysis and comprehensive evaluation of soil nutrient status for greenhouse vegetable[J].,2019,(03):624-630.[doi:doi:10.3969/j.issn.1000-4440.2019.03.017]
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设施蔬菜土壤养分状况分析及综合评价()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2019年03期
页码:
624-630
栏目:
耕作栽培·资源环境
出版日期:
2019-06-30

文章信息/Info

Title:
Analysis and comprehensive evaluation of soil nutrient status for greenhouse vegetable
作者:
王秋君; 马艳; 郭德杰; 王光飞; 吴云成
（江苏省农业科学院农业资源与环境研究所，江苏南京210014）
Author(s):
WANG Qiu-jun; MA Yan; GUO De-jie; WANG Guang-fei; WU Yun-cheng
(Institute of Agricultural Resources and Environments, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China)
关键词:
设施蔬菜; 模糊数学; 土壤养分; 土壤肥力综合评价
Keywords:
greenhouse vegetable; fuzzy mathematics; soil nutrient; comprehensive evaluation of soil fertility
分类号:
S158
DOI:
doi:10.3969/j.issn.1000-4440.2019.03.017
文献标志码:
A
摘要:
综合运用主成分分析和模糊数学相结合的方法，分析了苏北地区设施蔬菜主产区土壤养分状况，对其土壤肥力进行综合评价。结果表明，苏北地区平均土壤有机质含量为26%，属中等水平，但盐城市土壤有机质含量不足。苏北地区的土壤pH平均值为72，但有342%土壤呈碱性，25%土壤呈酸性，淮安市的土壤碱化现象较为严重。土壤硝态氮、有效磷和速效钾平均含量分别为1525 mg/kg、1525 mg/kg、3862 mg/kg，均存在过量积累现象，但不同城市土壤中3种养分积累程度不同。利用因子分析法确定各土壤指标权重，结合隶属度计算出土壤综合肥力指数，发现苏北地区的土壤综合肥力平均指数为05，处于中等水平,有252%的土壤综合肥力<04, 即土壤肥力差。土壤速效钾为苏北地区土壤肥力的主要限制因子。
Abstract:
Using the combination of principal component analysis and fuzzy mathematics, the status of soil nutrients in the main producing area of greenhouse vegetable in northern Jiangsu was analyzed and the soil fertility was evaluated comprehensively. The results showed that the average soil organic matter content in northern Jiangsu was 2.6%, which belonged to moderate level, but the content of soil organic matter in Yancheng was insufficient. The average soil pH in northern Jiangsu was 7.2, but 34.2% of the soil was alkaline, and 2.5% of the soil was acidic. In particular, soil alkalization in the Huai′an area was more serious. The average contents of soil nitrate, available phosphorus, and available potassium were 152.5 mg/kg, 152.5 mg/kg, and 386.2 mg/kg, respectively. Moreover, there were excessive accumulation phenomenon, but the accumulation extent of soil nutrients in different cities was different. Factor analysis was used to determine the weight of each soil index, and the comprehensive soil fertility index was calculated based on the degree of membership. It was found that the average comprehensive soil fertility index in northern Jiangsu was 0.5, and 25.2% of the total soil fertility was less than 04. Soil available potassium is the main limiting factor of soil fertility in northern Jiangsu.

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备注/Memo

备注/Memo:
收稿日期：2018-08-25 基金项目：国家重点研发计划项目（2016YFD0201007）；江苏省农业科技自主创新基金项目[CX(16)1021-6] 作者简介：王秋君（1983-），男，山西万荣人，博士，副研究员，主要从事土壤连作障碍修复研究。（E-mail）wangqiujun461@163.com 通讯作者：马艳，（E-mail）myjaas@sina.com
更新日期/Last Update: 2019-06-30