摘要
为了研究尿素硝酸铁溶液(UAN)与肥料增效剂正丁基硫代磷酰三胺(NBPT)的适宜用量、最佳施用方法等,以大蒜为研究对象,开展了小区试验。试验结果表明,与不施氮肥处理相比,施用UAN与肥料增效剂NBPT的增产效果显著,蒜苔增产量在300.00-768.25 kg/hm^2,增产率在10.12%~25.91%;蒜头增产量为1350.79〜2996.83 kg/hm^2,增产率为5.53%~12.26%;增施氮肥可导致耕作层土壤硝态氮含量增加,各土层的土壤硝态氮含量基本上以0~20 cm耕作层最高,但施用UAN的不同层次土壤硝态氮含量增幅有所减小。
In order to study the suitable application amount and optimal application method of urea ammonium nitrate solution and fertilizer synergist NBPT,the plot experiment is carried out with garlic as the research object.The experimental results show that the application of urea ammonium nitrate solution and fertilizer synergist NBPT has a significant yield increase effect compared with no nitrogen fertilizer treatment.The increase in yield of garlic sprout is 300.00 to 768.25 kg/hm^2,and the yield increase rate is 10.12%to 25.91%;The yield of garlic bulb increases by 1350.79 to 2996.83 kg/hm^2,and the yield increase rate is about 5.53%to 12.26%;Increasing the application of nitrogen fertilizer can lead to an increase in soil nitrate nitrogen content in the plowing layer.In each soil layer,the soil nitrate nitrogen content is basically the highest in 0〜20 cm plowing layer,however,the application of urea ammonium nitrate solution,the increase of nitrate nitrogen content in different layers of soil has been reduced.
作者
孙克刚
杜君
杨焕焕
郑春风
和爱玲
张运红
SUN Kegang;DU Jun;YANG Huanhuan;ZHENG Chunfeng;HE Ailing;ZHANG Yunhong(Institute of Plant Nutrition,Agricultural Resources and Environmental Science,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China)
出处
《化肥工业》
CAS
2019年第6期68-71,74,共5页
Chemical Fertilizer Industry
关键词
大蒜
尿素硝酸铁溶液
肥料增效剂
硝态氮
garlic
urea ammonium nitrate solution
fertilizer synergist
nitrate nitrogen
