鄢陵县花卉土壤养分特征及评价

Characters of Soil Nutrients for Flowers in Yanling County

以鄢陵县花卉土壤为研究对象,通过野外采样和室内分析对表层（0-10 cm）土壤养分特征进行研究。结果显示：鄢陵县花卉土壤速效氮含量为4.33-25.77 mg/kg,均值（13.57±6.70）mg/kg,属于土壤养分分级的第6级水平;速效磷含量为50.37-147.3 mg/kg,均值（94.09±24.17）mg/kg,属于第1级水平;速效钾含量为22.35-192.8 mg/kg,均值（96.32±43.67）mg/kg,整体上属于第4级水平;有机质含量为20.98-74.43 g/kg,均值（50.69±13.82）g/kg,属于第1级水平。花卉土壤综合肥力指数为（1.79±0.12）,属于三等土壤,肥力水平一般。因而建议：施用有机肥中和土壤碱性;增施氮肥,合理补充钾肥,协调土壤中氮、磷、钾的比例,提高花卉的质量和产量。

On the basis of field investigation and laboratory analysis, the nutrient of surface soil （0 to 10 cm） of the flowers soil in Yanling county, were analyzed. The results showed that： The content of available nitrogen ranged from 4.33 to 25.77 mg/kg, with the mean of （13.57±6.70）mg/kg and the level was the sixth. The content of available phosphorus varied from 50.37 to 147.3mg/kg , with the mean of （94.09±24.17）mg/kg and the level was the first. The content of available potassium ranged from 22.35 to 192.8 mg/kg, with the mean of （96.3243.67）mg/kg and the level was the fourth. The content of organic matter ranged from 20.98 g/kg to 74.43 g/kg, with the mean of （50.69±13.82）g/kg and the level was the first. The index of the integrated fertility of flowers soil was （1.79 ±0.12）and the level was the third, indicating a general soil integrate fertility. The advice to the management of flowers planting were applying manure to adjust the pH, increasing the nitrogen fertilizer application, applying potassium fertilizer properly and coordinating nitrogen, phosphorus and potassium to improve the quality and yield of flowers.