辽河平原玉米田不同施肥下的土壤氨挥发特征

赵欣周,张世春,李颖,郑益旻,赵洪亮,谢立勇

The Characteristics of Soil Ammonia Volatilization Under Different Fertilizer Application Measures in Corn Field of Liaohe Plain

ZHAO XinZhou,ZHANG ShiChun,LI Ying,ZHENG YiMin,ZHAO HongLiang,XIE LiYong

表3 不同施肥措施下土壤氨挥发速率与土壤铵态氮含量的Pearson相关性分析

Table 3 Pearson correlation analysis of soil ammonia volatilization rate and soil ammonium nitrogen content under different fertilization measures

时期 Stage 处理 Treatment r值 r value P值 P value 施基肥后 After basal fertilization T0 -0.076 >0.05 T1 0.573 >0.05 T2 -0.105 >0.05 T3 -0.228 >0.05 T4 0.353 >0.05 施追肥后 After top dressing T0 0.614 >0.05 T1 0.810** <0.01 T2 0.757* <0.05 T3 0.437 >0.05 T4 0.803** <0.01