Reduction of ammonia emissions in fattening pig houses through the application of a urease inhibitor using different application techniques

IF 4.4 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Biosystems Engineering Pub Date : 2024-09-02 DOI:10.1016/j.biosystemseng.2024.08.011
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Abstract

Investigations into the use of urease inhibitors for reducing ammonia emission in dairy farming have been published in several papers. The aim of this study is to expand the existing knowledge on the use of urease inhibitors for reducing ammonia emissions in fattening pig houses. In this respect, in addition to the proven standard application approach using a backpack sprayer, the investigation was extended to include different application techniques.

Urease inhibitor was applied on two farms over six experimental periods throughout the year using three different application techniques: a backpack sprayer, and a semi-automatic system that applies the inhibitor both on-floor and under-floor. Two identical compartments, alternated between treatment and control, were used on each farm. A linear mixed model with repeated measurements was used to quantify the reduction effect of the urease inhibitor.

The use of the backpack sprayer led to a reduction in ammonia emissions of 22.9% (standard error, SE: 4.9%). The on-floor application system reduced the emissions by 16.6% (SE: 4.9%), and the under-floor application system resulted in no significant reduction.

The development of the semi-automatic application system can be considered beneficial for reducing emissions. However, further development and improvement of this application system is necessary for its widespread practical use, especially regarding the distribution accuracy of the application liquid, contamination issues, and the manual workload. In addition, the effects of the presence of the animals during the application process need to be investigated in more detail.

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采用不同的施用技术,通过施用脲酶抑制剂减少育肥猪舍的氨气排放
关于使用脲酶抑制剂减少奶牛场氨气排放的研究已发表在多篇论文中。本研究的目的是扩展现有知识,了解如何使用脲酶抑制剂减少育肥猪舍的氨气排放。在这方面,除了使用背负式喷雾器这种经过验证的标准施用方法外,调查还扩展到了不同的施用技术。在全年的六个实验期内,使用三种不同的施用技术在两个农场施用了脲酶抑制剂:一种是背负式喷雾器,另一种是在地板上和地板下施用抑制剂的半自动系统。每个农场使用两个相同的隔间,在处理和对照之间交替使用。使用背负式喷雾器可使氨气排放量减少 22.9%(标准误差:4.9%)。地板上喷洒系统减少了 16.6%(标准误差:4.9%)的排放量,而地板下喷洒系统没有显著减少排放量。半自动喷涂系统的开发可被视为有益于减少排放,但要广泛实用,还需要进一步开发和改进该喷涂系统,特别是在喷涂液体的分布精度、污染问题和人工工作量方面。此外,还需要对施用过程中动物的存在所产生的影响进行更详细的研究。
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来源期刊
Biosystems Engineering
Biosystems Engineering 农林科学-农业工程
CiteScore
10.60
自引率
7.80%
发文量
239
审稿时长
53 days
期刊介绍: Biosystems Engineering publishes research in engineering and the physical sciences that represent advances in understanding or modelling of the performance of biological systems for sustainable developments in land use and the environment, agriculture and amenity, bioproduction processes and the food chain. The subject matter of the journal reflects the wide range and interdisciplinary nature of research in engineering for biological systems.
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