摘要
为探究不同新型尿素对华北平原冬小麦-夏玉米轮作体系的产量及氮素吸收利用的影响,以期为新型尿素在实际生产中应用提供理论依据。以普通尿素为对照,连续5年施用6种新型尿素,测算小麦-玉米轮作产量,分析新型尿素对产量构成的影响,同时测定植株与籽粒氮素吸收情况,核算新型尿素的氮肥农学效率、偏生产力及生产效益。结果表明:相对普通尿素连续施用新型尿素均能显著增加小麦-玉米轮作体系产量(P<0.05),增产范围为7.08%~11.77%,其中小麦季控失尿素增产9.02%,玉米季含锌尿素增产15.52%;小麦季新型尿素氮素吸收及利用无较大差异,而玉米季控失尿素分次施肥与含锌尿素的平均氮肥农学效率分别达到了9.49 kg/kg和10.63 kg/kg;从生产效益来看,控失尿素分次施用与含锌(锰)的净收益最高。本试验条件下,建议在华北平原冬小麦-夏玉米轮作体系中分次施用控失尿素或者施用含锌(锰)尿素。
The aim was to explore the effects of different new urea on yield and nitrogen uptake and utilization of winter wheat-summer maize rotation system in the North China Plain,with a view to providing a theoretical basis for the application of new urea in practical production.Using common urea as a control,six new types of urea were applied for 5 consecutive years to measure the yield of wheat-maize rotation,analyze the effect of new urea on the composition of the yield,and at the same time,determine the nitrogen uptake of plants and seeds,and account for the nitrogen fertilizer agronomic efficiency,bioproductivity,and production benefits of the new types of urea.The results showed that compared to the ordinary urea,continuous application of the new urea all significantly increased the yield of wheat-maize rotation system(P<0.05),with the range of yield increase from 7.08%to 11.77%,of which 9.02%was increased by the loss-control urea in the wheat season,and 15.52%was increased by the zinc-containing urea in the maize season;there was no significant difference in nitrogen absorption and utilization of the new urea during the wheat season,while the average nitrogen fertilizer agronomic efficiency of loss-control urea fertilization and zinc containing urea in the corn season reached 9.49 kg/kg and 10.63 kg/kg,respectively.From the perspective of production efficiency,the net benefit of using loss-control urea in batches and zinc(manganese)containing urea was the highest.Under the conditions of this experiment,it was recommended to apply loss-control urea or zinc(manganese)containing urea in the winter wheat-summer corn rotation system in the North China.
作者
王文赞
韩建
李鑫
王琛
李瑞娟
岳艳军
张丽娟
WANG Wenzan;HAN Jian;LI Xin;WANG Chen;LI Ruijuan;YUE Yanjun;ZHANG Lijuan(College of Resources&Environmental Sciences,Agricultural University of Hebei/Key Laboratory for Farmland Eco-Environment of Hebei Province,Baoding,Hebei 071000;SQM(Beijing)Trading Co.,Ltd.,Beijing 100020;Agricultural and Rural Bureau of Renqiu City,Renqiu,Hebei 062550;Henan Xinlianxin Chemical Industry Group Co.,Ltd.,Xinxiang,Henan 453731)
出处
《中国农学通报》
2024年第33期24-33,共10页
Chinese Agricultural Science Bulletin
基金
国家重点研发计划课题“障碍粮田水肥智能调控与养分协同增效关键技术、产品及应用”(2021YFD1901003)。
关键词
新型尿素
小麦-玉米轮作
产量构成
氮素吸收
氮肥利用
氮肥农学效率
生产效益
new urea
wheat-corn rotation
yield composition
nitrogen absorption
nitrogen fertilizer utilization
nitrogen use efficiency
production efficiency
