热带农业工程2025，Vol.49Issue(5)：1-5,5.
昭通牛场镇玉米耕地土壤肥力及环境现状分析
Analysis of Soil Fertility and Environmental Status in Maize Cultivated Land in Niuchang Town,Zhaotong City
摘要
Abstract
To analyze the current status of soil fertility and environmental quality in maize-cultivated land in Zhaotong and increase crop yield,maize plants and rhizosphere soil samples from 14 natural villages in Shagou Village Committee were studied.Soil physicochemical properties and the contents of heavy metals(Pb,Cd,Cu,Zn)in soil and plants were determined.Pollution was assessed using the single factor index and the Nemerow comprehensive pollution index methods.The results showed that:In the 14 villages,soil organic matter(16.00-78.82 g/kg),total nitrogen(1.05-4.76 g/kg),and available potassium(149.23-387.60 mg/kg)were at high levels;available phosphorus(4.29-32.42 mg/kg)was at a medium-high level;total potassium(5.84-12.54 g/kg)was at a medium level;total phosphorus(0.19-0.66 g/kg)and alkaline hydrolyzed nitrogen(16.33-66.50 mg/kg)were at low levels.The soil showed no signs of pollution from Pb,Cd,Cu,or Zn,and the study area is generally at a safe level,but caution is needed to prevent potential Cd pollution.关键词
土壤肥力/土壤理化性质/重金属污染Key words
soil fertility/soil physicochemical properties/heavy metal pollution分类
农业科技引用本文复制引用
牛婷婷,张琳,刘永康,王吉秀..昭通牛场镇玉米耕地土壤肥力及环境现状分析[J].热带农业工程,2025,49(5):1-5,5.基金项目
国家自然科学基金(No.41761073,No.41967049) （No.41761073,No.41967049）
国家级一流课程《环境生态学》建设 （）
云南农业大学一流课程《生态-土壤综合实验》(No.2020YLKC033 （）
No.2021YLKC170 （）
No.2020YLKC015) （）
云南农业大学校级思政课程(No.202028 （）
No.YAUKCSZJG0073) （）
