植物营养与肥料学报2012，Vol.18Issue(1)：106-114,9.
不同有机肥对日光温室土壤剖面硝态氮含量动态变化的影响
Effects of organic manures on dynamic changes of nitrate contents of soil profile in greenhouse
摘要
Abstract
A field plot experiment was conducted to study the effects of different organic manures on greenhouse soil NO;-N accumulation, distribution and seasonal changes. The results show that the impacts on greenhouse soil NO3 -N are varied with seasons under the application of the organic manures. In summer, high levels of the organ- ic manure applications lead to NO3 -N accumulation in soil and vegetables, and promote the NO3 -N migration to the lower soil depths. On the contrary, high levels of organic manures reduce the NO~ -N contents of soil and vege- tables, and reduce NO3 -N migration to the subsoil in winter. Take the treatment of swine manure with 22.5 t/ha as an example, in 0 -10 cm, 0-80 cm soil depth and tomato, the accumulation of NO3- -N are increased by 56. 69% , 31.48% and 23.94% , respectively, compared with the chemical fertilizer treatment, in summer. But in winter, the accumulation of NO; -N are reduced by 67.38% , 61.74% and 6.26% , in 0 -10 era, 0 -80 cm soil depth and edible celery parts, respectively. Different treatments have different magnitudes of annual variations of soil nitrate. The order from high to low is chicken manure 〉 swine manure 〉 commercial organic fertilizer 〉 chemi- cal fertilizer. Therefore, the application amounts of organic manures should be different in different seasons. The vegetable harvested in summer should be appropriate to reduce the application amount. On the contrary, the vegeta- ble harvested in winter could be appropriate to increase the application amount.关键词
日光温室/有机肥/硝态氮/季节性变化Key words
greenhouse/organic manure/nitrate/seasonal variation分类
农业科技引用本文复制引用
肖辉,程文娟,王立艳,潘洁,高贤彪..不同有机肥对日光温室土壤剖面硝态氮含量动态变化的影响[J].植物营养与肥料学报,2012,18(1):106-114,9.基金项目
国家科技支撑计划(2008BADA4805) （2008BADA4805）
天津市农业科学院院长基金项目(09007,09014)资助. （09007,09014）
