摘要： 通过田间调查与室内化学分析相结合的方法,研究安国市药田与粮田不同深度土壤中有效磷累计特征。调查结果显示,在0~20,20~40,40~60, 0~60cm土壤深度上,药田土壤中有效磷的平均值分别是36.43,16.09,9.05,20.54mg⁄kg,粮田土壤中有效磷的平均含量是22.23,12.19,7.82,13.98 mg⁄kg。t检验结果显示,药田和粮田在不同土壤深度上有效磷含量差异显著且在0~20cm土壤深度上药田有效磷含量显著高于粮田土壤,然而在20~40,40~60,0~60cm土壤深度上药田和粮田土壤中有效磷含量差异不显著。总之,药田和粮田在0~20,20~40,40~60cm的土壤深度上,随着土壤深度的加深,土壤中有效磷含量降低,药田耕层土壤中有效磷含量显著高于粮田耕层土壤有效磷含量。

关键词: 安国市, 有效磷, 药田, 粮田, 土壤深度

Abstract: Soil available phosphorus accumulation in soils of fields planted medicinal plants and grain crops in Anguo city was investigated and compared by field sampling and chemical analysis .The results showed that average content of available phosphorus in 0一20,20一40,40一60,0一60 em of soil layers of herbal fields were 36. 43,16.099. 05,20. 54 mg /kg. In addition,average content of available phosphorus in the same layer of grain fields,were 22. 23,12.19 7.82,13.98 mg/kg. The test results indicated that available phosphorus in 0一20 cm soil layer of herbal fields were significantly higher than grain fields. However,the differences were not significant between the herbal and grain fields in 20一40 40一60,0一60 em of soil layers. In conclusion,nowadays,the content of available phosphorus in 0一20 20一40 40一60 em of soil layers were reduce as the soil layers were deepen. The content of available phosphorus in herbal fields were significantly higher than grain fields.

Key words: Antuo city, Available phosphorus, Herbal field, Grain field, Soil depth

中图分类号: 

• S151.9