相同气候背景下南北方稻田土壤上水稻生长及氮响应差异研究

黄秋红,刘智蕾,李鹏飞,车俊杰,于彩莲,彭显龙

Difference in Nitrogen Responses and Nitrogen Efficiency of Different Paddy Soils in Southern and Northern China Under the Same Climatic Condition

HUANG QiuHong,LIU ZhiLei,LI PengFei,CHE JunJie,YU CaiLian,PENG XianLong

表2 土壤累积矿化氮模型的相关系数

Table 2 Coefficient of the cumulative soil mineralized nitrogen model

土壤类型 Soil type 有效积温方程 Effective accumulated temperature model, EATM 一级动力学模型 One-pool model K n R2 P N0 k0 R2 P 黑土型水稻土 Black paddy soil 1.17 0.621 0.936 0.007 45.39 0.063 0.960 0.004 乌栅土型水稻土 Gleyed paddy soil 10.63 0.181 0.999 <0.001 28.56 0.221 0.993 <0.001