摘要
针对养殖业产生大量粪便的不合理处置以及对环境的不利影响现状,采用大田试验的方法开展了鸡粪和鸭粪的施用对土壤主要养分和微量元素锌累积的影响。结果表明,随着鸡粪和鸭粪有机肥施用量的增加,土壤有机质、全氮、全磷、全Zn含量均趋于明显上升趋势。低量鸡粪、鸭粪有机肥(15 t/hm2)分别与适量化肥配合即能保持小麦季耕层土壤速效养分氮、磷和锌的供应。与不施鸡粪或者鸭粪相比,当鸡粪和鸭粪用量为90 t/hm2和150 t/hm2时土壤硝态氮、速效磷和有效Zn含量均显著升高。过量施用禽粪有机肥会造成土壤主要养分氮磷和微量元素锌的明显累积。随有机肥施用量的增加,小麦产量有明显提高,适宜有机肥施用量为60～90 t/hm2。
Aimed at resolving the unreasonable disposition and disadvantage to environment of poultry manures, The research on the effect of different rate of organic chicken manure and duck manure on the main soil nutrients and trace element zinc accumulation were carried out by a field plot experiment. The results showed that the soil organic matter,total nitrogen,total phosphorus and total Zn contents increased significantly with the increasing rates of the organic manure,respectively. The soil available nutrients nitrogen, phosphorus and Zn supply could be maintained by the combined application of the low chicken, duck manure rate（ 15 t/ha） and chemical fertilizer in the wheat season. The contents of soil nitrate, available phosphorus, available Zn increased significantly when the rate of chicken and duck manure were 90 t/ha and 150 t/ha, respectively. The major soil nutrients and trace elements zinc could be accumulated by application of the excessive poultry manure. With the increasing amounts of the organic manure, wheat yield increased significantly. Appropriate application rate of organic manure was 60 -90 t/ha.
出处
《华北农学报》
CSCD
北大核心
2011年第B12期157-162,共6页
Acta Agriculturae Boreali-Sinica
基金
国家科技支撑计划项目(2007BAD87B04
2006BAD25B06)
公益性行业(农业)科研专项(200903015)
关键词
禽粪有机肥
土壤
主要养分
锌
累积
Poultry manures
Soil
Nutrients
Zinc
Accumulation
