Phosphorus transformation and transport from fertilizers and manures

化肥和粪肥中磷的转化和运输

基本信息

  • 批准号:
    239295-2010
  • 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:
    Discovery Grants Program - Individual
  • 财政年份:
    2013
  • 资助国家:
    加拿大
  • 起止时间:
    2013-01-01 至 2014-12-31
  • 项目状态:
    已结题

项目摘要

Lake Winnipeg is the 10th largest body of freshwater and the third largest reservoir of hydroelectric in the world. However, its health is currently threatened by excess nutrient loading particularly phosphorus (P). There is an urgent need to better understand the nature of phosphorus and how it is transformed in Manitoba soils to aid in developing practices that effectively reduce the movement of P from soil to surface waters. My research program investigates the transport and transformation of P in soil following additions of fertilizers and manures. I have proposed a series of studies on both fertilizer and manure P that will address some of the environmental and agronomic challenges of managing P in Manitoba. In the area of agronomy, the long-term objective of my studies is to significantly increase the efficiency of fertilizer P uptake by the crop. To achieve this objective, I will conduct studies to quantify and identify P minerals that are formed when non-phosphate salts are added to P fertilizer in dual bands. This information will help us to find the right formula for improving the fertilizer use efficiency of P by the crop. An increase in P fertilizer use efficiency will provide economic and environmental benefits to Canadian farmers through reduced input cost and reduced residual soil P. In the area of environment, the goal is to reduce P loading to the soil by examining the use of technologies such as phytase enzyme, highly available P grains (e.g. HAP Barley) and solid-liquid separation on manure and their effects on the forms of manure P and its solubility in the soil. This will ensure that management options for reducing manure P levels do not lead to the environmental problem of increased P solubility. I will collaborate with engineers on solid-liquid separation and its potential to reduce P loading to the soil. Results from this study will assist us develop commercial-scale system for effective removal of solids and P from swine manure. If the P rich solids can the separated then the liquid can be used near swine barns to provide nitrogen and the P-rich solid can be transported further away to serve as P source to crop elsewhere. This will address the issue of excessive P loading in the vicinity of hog barns and in regions with high animal density.
温尼伯湖是世界上第十大淡水湖和第三大水力发电水库。然而,其健康目前受到过量营养负荷特别是磷(P)的威胁。有一个迫切需要更好地了解磷的性质,以及它是如何在马尼托巴土壤转化,以帮助开发的做法,有效地减少从土壤到地表沃茨的磷的运动。我的研究项目调查了在添加肥料和粪肥后土壤中磷的运输和转化。我已经提出了一系列的研究,肥料和粪肥磷,将解决一些环境和农艺管理磷在马尼托巴的挑战。在农学领域,我的研究的长期目标是显著提高作物对肥料磷的吸收效率。为了实现这一目标,我将进行研究,以量化和识别非磷酸盐添加到磷肥双波段时形成的磷矿物质。这些信息将有助于我们找到正确的配方,以提高作物对磷的利用效率。磷肥利用效率的提高将通过降低投入成本和减少土壤残留磷为加拿大农民提供经济和环境效益。在环境领域,目标是通过研究使用植酸酶、高有效磷颗粒(如HAP大麦)和有机肥固液分离及其对有机肥磷形态和溶解度的影响。这将确保减少粪肥磷含量的管理选择不会导致磷溶解度增加的环境问题。我将与工程师合作研究固液分离及其减少土壤磷负荷的潜力。本研究的结果将有助于我们开发商业规模的系统,有效地去除固体和P从猪粪。如果富磷固体可以被分离,那么液体可以在猪舍附近使用以提供氮,并且富磷固体可以被运输到更远的地方以用作其他地方作物的磷源。这将解决猪舍附近和动物密度高的地区磷负荷过高的问题。

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
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
  • 批准号:
    497302-2016
  • 财政年份:
    2016
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Engage Grants Program
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:
    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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