摘要
为寻求农田最佳废水利用模式,以当地习惯施氮量（冬小麦季施氮228 kg/hm2,夏玉米季施氮150 kg/hm2）为对照（CK）,研究牛场废水灌溉与化肥配施对冬小麦和夏玉米轮作体系作物产量、吸氮量以及0～100 cm土层氮素分布的影响。结果表明,冬小麦越冬期废水灌溉与拔节期追施化肥处理冬小麦产量达到与CK同一水平,且冬小麦植株吸氮量超过了CK;冬小麦季土壤表层（0～20 cm）NO3--N量最高,20～100 cm土层NO3--N量随深度变化不明显,夏玉米收获后0～100 cm土层NO3--N量随深度增加先降低后升高,80～100 cm土层与0～20 cm土层NO3--N量达到同一水平。冬小麦越冬期灌溉废水与拔节期追施氮肥是养殖废水安全农田利用的最佳模式。
As the increasing number of Dairy farms, massive farm wastewater is becoming another threat to the ecosystem which contains rich plant nutriment and is regarded as a kind of resource applied to field as fertilizer. A field experiment was conducted in North China Plain seeking for the best dairy farm wastewater application. According to local farmers fertilization practice （winter wheat season Nitrogen 228 kg/hm2, summer maize season Nitrogen 150 kg/hm2, CK）, the coefficient of topdressing and dairy wastewater irrigation on crop yield, nitrogen uptake and nitrogen distribution of 0-100 cm soil layer were researched. The results showed that after two years wastewater irrigation and topdressing, the wheat yield reached at the same level of CK, and wheat nitrogen exceeded that of CK; in the wheat season, the nitrate content of 0~20 cm soil layer was the highest, and the nitrate content of 20-100 cm soil layer did not change significantly; after the maize harvested, the nitrate content of 0-100 cm soil layer initially declined then increased with the depth increasing, and the nitrate content of 80-100 cm was as same as the soil surface 0-20 cm. Wastewater irrigation at wintering stage and chemical fertilizer at jointing stage could be used as security application farmland way.
出处
《灌溉排水学报》
CSCD
北大核心
2016年第10期1-7,共7页
Journal of Irrigation and Drainage
基金
国家科技支撑计划项目(2012BAD15B02)
作者简介
（1990-），女，河北石家庄人。硕士研究生，主要从事养殖废弃物面源污染控制方面研究。E-mail：526789323@qq.com
通讯作者：杜会英（1977-），女，河北唐山人。博士，主要从事养殖废弃物面源污染控制和农田安全利用方面研究。
