Optimizing the effectiveness of a novel urease inhibitor to reduce ammonia volatilization losses from urea, and increase nitrogen uptake and crop yield

优化新型脲酶抑制剂的有效性,以减少尿素中氨的挥发损失,并增加氮素吸收和作物产量

基本信息

  • 批准号:
    497302-2016
  • 负责人:
  • 金额:
    $ 1.82万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Engage Grants Program
  • 财政年份:
    2016
  • 资助国家:
    加拿大
  • 起止时间:
    2016-01-01 至 2017-12-31
  • 项目状态:
    已结题

项目摘要

The overall objective of this study is to reduce ammonia volatilization losses from urea-based nitrogen (N) fertilizers by optimizing the effectiveness of a novel urease inhibitor. Active Agriproducts (AAP) is in the process of developing a novel urease inhibitor (ARM-U) taking into consideration some of the weaknesses of existing products. The company has evaluated the efficacy of ARM-U to reduce ammonia volatilization from urea-based fertilizers in the greenhouse. The results showed that 24% of the applied N in the urea and 5% of the applied N in UAN (28-0-0) was lost as ammonia 7 days after application, while less than 1% N was lost in the urea and UAN treated with ARM-U. This preliminary study showed that ARM-U was as effective as two commercial urease inhibitors in reducing ammonia volatilization from urea-based fertilizers. The company aims to improve the product by reducing the content of its active ingredient, NBPT, while enhancing the efficacy of NBPT. To achieve this, field scale studies comparing the effectiveness of different rates of ARM-U in preventing ammonia volatilization from urea are needed. We also do not know if the decrease in ammonia volatilization will translate into increased N uptake and increased crop yield. The experimental technique to be used is the open static cylindrical chambers method fitted with acid soaked foam discs. This will be used to trap ammonia gas emission on plots seeded to wheat to which urea has been applied with varying rates of urease inhibitor. Short term objectives of this study include: 1) Determine the optimal rate of ARM-U that strikes a balance between its efficacy in reducing volatilization losses and minimizing its NBPT content. 2)
本研究的总体目标是通过优化一种新型脲酶抑制剂的有效性来减少尿素基氮肥的氨挥发损失。Active Agriproducts (AAP)正在开发一种新型脲酶抑制剂(ARM-U),考虑到现有产品的一些弱点。该公司已经评估了ARM-U减少温室中尿素基肥料氨挥发的功效。结果表明:施氮7 d后,尿素中24%的氮素和UAN(28-0-0)中5%的氮素以氨态损失,而ARM-U处理的尿素和UAN中氮素损失不足1%。初步研究表明,ARM-U在减少尿素基肥料氨挥发方面与两种商用脲酶抑制剂一样有效。该公司旨在通过减少其活性成分NBPT的含量来改善产品,同时提高NBPT的功效。为了实现这一目标,需要进行实地规模的研究,比较不同比例的ARM-U在防止尿素氨挥发方面的有效性。我们也不知道氨挥发的减少是否会转化为氮吸收的增加和作物产量的增加。采用的实验技术是装有酸浸泡沫盘的开放静态圆柱形室法。这将用于捕获氨气体排放的地块上播种小麦,尿素已施用不同比例的脲酶抑制剂。本研究的短期目标包括:1)确定ARM-U在减少挥发损失和减少NBPT含量之间取得平衡的最佳配比。2)

项目成果

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Akinremi, OlalekanOluwole其他文献

Akinremi, OlalekanOluwole的其他文献

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{{ truncateString('Akinremi, OlalekanOluwole', 18)}}的其他基金

Efficacy of a novel urease inhibitor in reducing ammonia volatilization losses and increasing N uptake and grain yield from fall versus spring applied urea-based N fertilizer
与春季施用尿素氮肥相比,新型脲酶抑制剂在减少秋季氨挥发损失、增加氮吸收和谷物产量方面的功效
  • 批准号:
    501196-2016
  • 财政年份:
    2017
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Collaborative Research and Development Grants
Influence of rates of alfalfa pellets on water retention and cation exchange capacity of a sandy and a clay soil
苜蓿颗粒用量对砂土和粘土的保水性和阳离子交换能力的影响
  • 批准号:
    487380-2015
  • 财政年份:
    2015
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Engage Grants Program
Phosphorus transformation and transport from fertilizers and manures
化肥和粪肥中磷的转化和运输
  • 批准号:
    239295-2010
  • 财政年份:
    2014
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Increasing the accuracy of salinity measurements in highly saline soils
提高高盐土壤盐度测量的准确性
  • 批准号:
    477408-2014
  • 财政年份:
    2014
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Engage Grants Program
Phosphorus transformation and transport from fertilizers and manures
化肥和粪肥中磷的转化和运输
  • 批准号:
    239295-2010
  • 财政年份:
    2013
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Phosphorus transformation and transport from fertilizers and manures
化肥和粪肥中磷的转化和运输
  • 批准号:
    239295-2010
  • 财政年份:
    2012
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Phosphorus transformation and transport from fertilizers and manures
化肥和粪肥中磷的转化和运输
  • 批准号:
    239295-2010
  • 财政年份:
    2011
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Phosphorus transformation and transport from fertilizers and manures
化肥和粪肥中磷的转化和运输
  • 批准号:
    239295-2010
  • 财政年份:
    2010
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Measurement and simulation of nitrate leaching within the landscape
景观中硝酸盐淋溶的测量和模拟
  • 批准号:
    239295-2005
  • 财政年份:
    2009
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Identification and quantitation of P compounds and its transformation products in a dual P band using X-ray absorption near edge spectroscopy (XANES)
使用 X 射线吸收近边光谱 (XANES) 对双 P 波段中的 P 化合物及其转化产物进行鉴定和定量
  • 批准号:
    349837-2007
  • 财政年份:
    2008
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Collaborative Research and Development Grants

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