摘要
本研究将益阳市兰溪镇产粮区分为6块区域,并测定了各区域土壤的水分、干物质、pH值、有机质、有效磷和有效硅含量7个指标,同时根据土壤理化性质对养分进行丰缺诊断及肥力的综合评价。研究结果表明,6块区域土壤水分含量为3.31%~3.98%、干物质含量为96.02%~96.69%、pH值为5.15~5.48,有机质含量为25.59~31.59 g/kg、有效磷含量为20.12~24.87 mg/kg、有效硅含量为95.87~119.78 mg/kg,可见,研究区域土壤水分和干物质均维持在国标认可水平;有效磷处于二级水平,含量较高;有机质和有效硅分别处于二级与三级水平,含量适中;土壤pH值为三级水平,存在土壤酸化问题。因此,兰溪镇产粮区土壤肥力良好但酸化问题明显,需要进一步消减酸性。
This study divided the grain production areas of Lanxi Town,Yiyang City into six regions,and measured seven indicators of soil moisture,dry matter,pH,organic matter,available phosphorus,and available silicon content in the regions.Meanwhile,a diagnosis of nutrient abundance or deficiency and an evaluation of soil fertility were conducted comprehensively based on the physical and chemical properties of the soil.The experimental results demonstrated that the moisture levels ranging from 3.31%to 3.98%in the six areas,with dry matter of the soil ranged from 96.02%to 96.69%.The pH of the soil ranged from 5.15 to 5.48,while the organic matter content of the soil ranged from 1.13%to 1.83%.The organic matter of the soil exhibited a range of 25.59 to 31.59 g/kg,while the effective phosphorus content of the soil spanned 20.12 to 24.87 mg/kg.Similarly,the effective silica content of the soil exhibited a range of 95.87 to 119.9 mg/kg.It can be seen that the soil moisture and dry matter of the six rice-producing areas were found to be maintained at the level approved by the national standard in Lanxi Town.The effective phosphorus was at the level of Grade II with a high content,organic matter and effective silicon were between Grade II and Grade III,and the content of soil pH was at Grade III,with the problem of soil acidification.Thus,the soil fertility in the grain producing area of Lanxi Town is good,but the problem of acidification is obvious,and further reduction of acidity is needed.
作者
彭晓赟
曾定民
傅家俊
刘莉
库文珍
陈锋
PENG Xiaoyun;ZENG Dingmin;FU Jiajun;LIU Li;KU Wenzhen;CHEN Feng(School of Materials and Chemical Engineering,Hunan City University,Yiyang,Hunan 413000,China;Yuxingshan State-owned Forest Farm of Yiyang City,Yiyang,Hunan 413000,China)
出处
《湖南城市学院学报(自然科学版)》
2025年第5期72-78,共7页
Journal of Hunan City University(Natural Science)
基金
湖南省科技特派员服务乡村振兴项目(2024RC8220)
湖南省大学生创业指导平台项目(2025CKX021)。
关键词
土壤肥力
养分特征
益阳产粮区
区域差异
soil fertility
nutrient characteristics
Yiyang rice production area
regional differences
