生态与农村环境学报2012，Vol.28Issue(4)：349-354,6.
配施猪粪对麦季CH4和N2O排放及温室效应的影响
Effects of Application of Pig Manure in Combination With Chemical Fertilizers on CH4 and N2O Emissions and Their Greenhouse Effects in Wheat Field
摘要
Abstract
Characteristics of CH4 and N2O emissions from wheat fields applied with pig manure in combination with chemical fertilizers were studied using the static chamber method and gas chromatography, and greenhouse effect of the CH4 and N2O emitted from the fields were assessed using global warming potentials (PGW ). Results show that the average CH4 flux from Treatment NPK (the plots applied with chemical fertilizer as in conventional practice) , Treatment NPKS (the plots applied with chemical fertilizer plus straw) , Treatment 50% PM (the plots applied with half pig manure and half chemical fertilizer) and Treatment 100% PM (the plots applied with pig manure only) was 6. 10, 10. 26, 5. 32 and 2. 35 μg ? m-2 ? h-1 , respectively, the average N2O flux from Treatments NPK, NPKS, 50% PM and 100% PM was 24.25, 38. 24, 12. 21 and 16. 06 μg ? m-2 ? h-1 , respectively. It was found that CH4 flux increased with temperature after the e-longation stage, and N2O emissions occurred mainly after irrigation or rain during the seeding stage. Compared to Treatment NPK, Treatment NPKS was 57. 9% and 52. 0% higher in PGW and PGW per yield, respectively, while, Treatment 100% PM was 34. 3% and 26. 0% lower and Treatment 50% PM 48. 9% and 48. 9% lower in PGW and PGW per yield, respectively. However, compared with Treatments NPK and NPKS, Treatment 100% PM was significantly lower in wheat yield. It is, therefore, concluded that Treatment 50% PM, that is, to replace half of the rate of chemical fertilizer applied in conventional practice with pig manure, is a good option to reduce CH4 and N2O emissions from wheat fields without significant yield reduction.关键词
猪粪/化肥/温室气体/小麦Key words
manure/ chemical fertilizer/ greenhouse gas/ wheat分类
资源环境引用本文复制引用
孙国峰,郑建初,陈留根,何加骏,张岳芳..配施猪粪对麦季CH4和N2O排放及温室效应的影响[J].生态与农村环境学报,2012,28(4):349-354,6.基金项目
江苏省农业科技自主创新资金[ CX(11)2073] （11）
