剑河县土壤有效硅含量分析

为明确剑河县土壤有效硅含量状况,科学补充有益元素,平衡作物营养,提高作物产量、质量,对剑河县12乡镇采集87个土壤样本中有效硅含量、pH值进行了分析.结果表明：剑河县土壤,pH值平均值为5.17,土壤偏酸性,pH值与土壤有效硅的含量在一定的范围内存在正相关性,有效硅平均值为39.9mg/kg,变异系数为76.25％,有效硅在各乡镇分布不均,南寨乡有效硅含量为最大,值为97.99mg/kg,变异系数为87.13％,远低于我国对有效硅规定的临界值100mg/kg,建议因地制宜增施硅肥.

Analysis of soil available silicon content in Jianhe County

In order to explore the soil available silicon contents in Jianhe county, scientific supplement of beneficial elements, balance application of nutrition for crops, increase yield and improve quality of crop, soil available silicon content, pH of 87 soil samples from 12 towns were analyzed. The results showed that it＇s acidic soil,soil pH was 5.17, pH and the content of soil a- vailable silicon in a certain range of memory in a positive correlation between the average available silicon as 39.9mg/kg, coeffi- cient of variation 76.25~, available silicon unevenly distributed in the township, available silicon content in Nanzhai was the largest, it＇s 97.99mg/kg, coefficient of variation was 87.13~ ~ but still lower than available silicon of China at 100mg/kg, in- creasing silicon fertilizer due to local conditions.