施用硫磺对滇池北岸碱性菜田氨挥发的影响  

Influence of Elemental Sulfur on Ammonia Volatilization in a Vegetable Soil in the Northern Bankside of Dianchi Lake

作　　者：张瑞杰[1,2] 胡正义[2,3] 林国林[1] 逄玉万[4] 殷小锋[2,5] 吴永红[2] 

机构地区：[1]沈阳农业大学土地与环境学院,沈阳110161 [2]中国科学院南京土壤研究所,土壤与农业可持续发展国家重点实验室,南京210008 [3]中国科学院研究生院资源与环境学院,北京100049 [4]广东省农科院土肥所,广州510640 [5]南京农业大学资源与环境学院,南京210095

出　　处：《土壤通报》2009年第3期636-639,共4页Chinese Journal of Soil Science

基　　金：国家高技术研究发展计划(863计划)(2005AA601002)资助

摘　　要：在滇池北岸某碱性蔬菜地,以尿素为氮源的施肥结构中,调查研究了硫磺施用对土壤氨的挥发、提高氮肥利用率等方面的影响。结果表明,在一定的施用范围内,施用硫磺明显降低土壤的pH值,有效抑制土壤氮的氨挥发损失,增加了土壤铵态氮含量。施硫处理与对照相比,氨挥发总量减少了59.6%～65.5%,而韭黄产量增加12%左右。One field experiment was conducted in alkaline vegetable field on north bank of Dianchi Lake to investigate effect of element sulfur （S）on ammonia volatilization. Results indicated that the pH of soil decreased obviously after application of sulfur to field. And ammonia volatilization loss was reduced, consequently the NH4＋-N in soil increased. The cumulative ammonia volatilization loss in field with sulfur in 36 days was less 59.6%-65.5% than non-fertilize sulfur field, and yields of Yellow Chinese Chive was increased about 12%.

关 键 词：施用硫磺 氨挥发 菜地土壤 滇池 

分 类 号：S156.99[农业科学—土壤学]