滴灌水肥一体化配施有机肥对土壤N2O排放与酶活性的影响

奚雅静,汪俊玉,李银坤,武雪萍,李晓秀,王碧胜,李生平,宋霄君,刘彩彩

Effects of Drip Irrigation Water and Fertilizer Integration Combined with Organic Fertilizers on Soil N2O Emission and Enzyme Activity

YaJing XI,JunYu WANG,YinKun LI,XuePing WU,XiaoXiu LI,BiSheng WANG,ShengPing LI,XiaoJun SONG,CaiCai LIU

表1 供试温室基础土壤理化性质

Table 1 Physicochemical properties of soil under test greenhouse

土层 Soil depth (cm) 有机质 Organic matter (g·kg-1) 全氮 Total nitrogen (g·kg-1) 硝态氮 NO3--N (mg·kg-1) 电导率 Electrical conductivity (μS·cm-1) 容重 Bulk density (g·cm-3) 0-20 15.4 1.55 14.87 276 1.354 20-40 12.80 278 1.517 40-60 22.25 348 1.485 60-80 70.25 360 1.361 80-100 98.68 392 1.424