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农学学报 ›› 2021, Vol. 11 ›› Issue (11): 41-47.doi: 10.11923/j.issn.2095-4050.cjas20190700122

所属专题: 玉米

• 土壤肥料/资源环境/生态 • 上一篇    下一篇

尿素中控失剂添加量对夏玉米氮素利用和产量的影响

崔双双1(), 孙泽强1,2, 王学君1,2, 董晓霞1,2(), 刘盛林1, 田慎重1, 刘志鑫3   

  1. 1山东省农业科学院农业资源与环境研究所,济南 250100
    2农业部山东耕地保育科学观测试验站,济南 250100
    3东营市农业高新技术示范区,山东东营 257000
  • 收稿日期:2019-07-15 修回日期:2019-12-16 出版日期:2021-11-20 发布日期:2021-12-09
  • 通讯作者: 董晓霞 E-mail:cuishuang.501003@163.com;dongxiaoxia612@163.com
  • 作者简介:崔双双,女,1988年出生,山东德州人,科研助理,硕士,研究方向:土壤培肥和农业水土资源高效利用。通信地址:250100 山东省济南市历城区工业北路202号 山东省农业科学院农业资源与环境研究所,E-mail: cuishuang.501003@163.com
  • 基金资助:
    山东省重大科技创新工程“滨海盐碱地生态保育与地力提升关键技术研究与示范”(2017cxgc);公益性行业(农业)科研专项“华北平原中南部旱地两熟区高强度利用退化及盐碱耕地培肥与合理农作制技术集成与示范”(201503121-06);山东省自然基金“黄河三角洲盐渍化农田磷库活化提高磷生物有效性途径研究”课题(ZR2017YL012)

Loss-control Additive Amount in Urea: Effects on Nitrogen Utilization and Yield of Summer Maize

Cui Shuangshuang1(), Sun Zeqiang1,2, Wang Xuejun1,2, Dong Xiaoxia1,2(), Liu Shenglin1, Tian Shenzhong1, Liu Zhixin3   

  1. 1Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Science, Jinan 250100, Shandong, China
    2Scientific Observing and Experimental Station of Arable Land Conservation (Shandong), Ministry of Agriculture, Jinan 250100, Shandong, China
    3Agricultural High-tech Demonstration District in Dongying, Dongying 257000, Shandong, China
  • Received:2019-07-15 Revised:2019-12-16 Online:2021-11-20 Published:2021-12-09
  • Contact: Dong Xiaoxia E-mail:cuishuang.501003@163.com;dongxiaoxia612@163.com

摘要:

为探究尿素中控失添加剂的适宜用量,以无氮处理(CK)、普通尿素(CU)处理为对照,研究不同控失剂添加量尿素(I~VI型,控失剂含量1%~6%)对夏玉米生长和肥效的影响。结果表明,氮肥对夏玉米产量和生物量影响显著,相同氮肥用量下,控失剂用量对夏玉米生物量有显著促进作用,尿素中4%的控失剂用量对夏玉米产量和生物量的促进作用最大,2016和2017年夏玉米平均产量Ⅳ型控失尿素较CU增加7.80%,夏玉米平均生物量Ⅳ型控失尿素较CU增加10.30%;尿素中控失剂含量为5%时夏玉米地上部吸氮量最多;Ⅳ型控失尿素的玉米氮肥利用率、氮素农学效率、氮肥偏生产力最高。尿素中控失剂添加量为4%玉米生物量和氮肥当季利用率最高,拟合控失尿素和夏玉米产量得出控失剂在尿素中的最佳添加量为4.81%。

关键词: 夏玉米, 氮肥利用率, 产量, 控失尿素, 控失剂, 最佳添加量

Abstract:

The paper aims to study the appropriate amount of loss-control additives in urea. Taking nitrogen-free treatment (CK) and common urea treatment (CU) as control, we studied the effects of urea with 1%-6% loss-control additive (typeⅠ-Ⅵ) on the yield and nitrogen use efficiency of summer maize. The results showed that: nitrogen fertilizer could significantly affect the yield and biomass of summer maize; with the same amount nitrogen, the concentration of loss-control additives significantly promoted the biomass of summer maize, the yield and biomass of summer maize were greatly improved by 4% loss-control additive; the average yield of summer maize under 4% loss-control additive (type Ⅳ) in 2016 and 2017 was increased by 7.80% compared with that of CU, while the average biomass was increased by 10.30%; the highest nitrogen uptake was observed at urea with 5% loss-control additive; the highest nitrogen use efficiency, nitrogen agronomic efficiency, nitrogen partial productivity were observed at 4% loss-control additive (type Ⅳ). In conclusion, urea with 4% loss-control additive could achieve the highest yield and nitrogen use efficiency of summer maize, the optimal addition concentration of loss-control additive in urea is 4.81% by fitting the loss-controlled urea and the yield of summer maize.

Key words: Summer Maize, Nitrogen Use Efficiency, Yield, Loss-controlled Urea, Loss-control Additive, Optimum Amount

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