夏玉米施用含锌尿素效应及对后茬小麦的影响
Effects of zinc-containing urea on maize and its effects on later wheat
周琦 1张银杰 1张露露 1李岚涛 1张倩 1王宜伦1
作者信息
- 1. 河南农业大学资源与环境学院,河南 郑州 450046
- 折叠
摘要
为明确新型肥料含锌尿素在夏玉米上的施用效果及其在冬小麦上的后效,采用田间试验,研究了施用含锌尿素、普通尿素、普通尿素+土施锌肥、普通尿素+喷施锌肥下夏玉米产量、养分吸收积累、土壤养分含量变化及其后效对冬小麦产量的影响.结果表明,普通尿素+喷施锌肥夏玉米产量较高,较不施氮显著增产 17.5%,含锌尿素较不施氮显著增产16.7%,较普通尿素显著提高5.6%,与传统施锌无显著差异;含锌尿素地上部氮、锌素积累量较普通尿素分别显著提高9.0%、47.8%;夏玉米收获后含锌尿素处理土壤有效锌含量为1.83 mg·kg-1,较普通尿素处理提高 88.6%;普通尿素+土施锌肥后茬冬小麦产量较高,较普通尿素显著增产 11.9%,施用含锌尿素冬小麦产量较普通尿素提高4.7%,轮作周年产量提高 5.2%;夏玉米利润和周年轮作利润分别提高 826.2 和1490.4 元·hm-2.含锌尿素较普通尿素提高了土壤有效锌含量,对后茬冬小麦、周年产量也有一定增产增收效果,夏玉米产量、干物质积累和氮肥利用效率等与传统施锌无显著差异.含锌尿素投入成本较传统施锌(氮肥和锌肥)降低 26.1%,含锌尿素较普通尿素提高了产量和效益,具有在夏玉米-冬小麦轮作体系中推广应用的潜力.
Abstract
In order to clarify the application effect of new fertilizer zinc-containing urea on summer maize and its after-effect on winter wheat,a field experiment was conducted to study the yield,nutrient absorption and accumulation of summer maize,soil nutrient content change and its after-effect on winter wheat yield under the application of zinc-containing urea,urea,urea+zinc fertilizer,and urea+foliar spraying zinc fertilizer.The results showed that the yield of maize with urea+foliar spaying zinc fertilizer treatment was higher than that without nitrogen fertilizer,which significantly increased by 17.5%.The yield of maize of zinc-containing urea treatment was increased significantly by 16.7%than that of without nitrogen fertilizer,and significantly higher than that of urea treatment by 5.6%.There was no significant difference between zinc-containing urea and traditional zinc application.Compared with urea treatment,the accumulation of nitrogen and zinc in the ground of zinc-containing urea treatment were significantly increased by 9.0%and 47.8%,respectively.After summer maize harvest,the soil available zinc content of zinc-containing urea treatment was 1.83 mg·kg-1,which was 88.6%higher than that of urea treatment.The yield of later winter wheat of urea+zinc fertilizer treatment was higher,which was 11.9%higher than that of urea treatment.The winter wheat yield of zinc-containging urea treatment was 4.7%higher than that of urea treatment,and the annual crop rotation yield was increased by 5.2%.Summer maize profit and annual rotation profit were increased by 826.2 and 1490.4 yuan·hm-2,respectively.Zinc-containing urea treatment had a better yield increase effect on summer maize,which increased the soil available zinc content.It also had a yield and profit increase effect on winter wheat in later season and annual yield.There was no significant difference between zinc-containing urea and traditional zinc application in the summer maize yield,dry matter accumulation and nitrogen fertilizer utilization characteristics,and the input cost of zinc-containing urea was reduced by 26.1%,compared with the traditional zinc application(nitrogen fertilizer and zinc fertilizer),which increased the yield and economic benefit compared with urea treatment.Zinc-containing urea has the potential to be applied in the maize-wheat rotation system.
关键词
夏玉米/含锌尿素/冬小麦/后效/产量/肥料利用率Key words
summer maize/zinc-containing urea/winter wheat/after-effect/yield/fertility utilization引用本文复制引用
基金项目
国家重点研发计划课题(2017YFD0301106)
出版年
2024
NETL
NSTL
万方数据