相关实验视频
Updated: May 27, 2025

13:23
A Protocol for Collecting and Constructing Soil Core Lysimeters
Published on: June 6, 2016
11.6K
评估用于水培生菜生产的家禽农业中使用经过处理的家禽加工废水提高中立性的气回收
Wellington Arthur1, Zach Morgan1, Ann E Inskeep1
1Biosystems Engineering, Auburn University, Auburn, AL 36849, United States.
Bioresource technology
|February 16, 2025
概括
禽类加工废水可以灌水培作物,但需要营养补充来实现最佳生长. 这项研究发现,虽然很丰富,但其他营养素的缺乏和pH问题限制了生菜的产量.
科学领域:
- 农业科学 农业科学
- 环境工程 环境工程
- 废水处理 废水处理
背景情况:
- 禽类加工废水 (PPW) 是一种富含营养的废水.
- 水耕系统提供可持续的粮食生产潜力.
- 在水栽培中使用PPW可以减少浪费和对合成肥料的依赖.
研究的目的:
- 在试点规模的家禽养殖系统中评估气回收和生菜生产.
- 评估经过处理的PPW作为水培灌源的有效性.
- 为了确定在PPW上种植的生菜中的营养限制和生长抑制因素.
主要方法:
- 设计了一个试点规模的家禽养殖系统,包括生物反应器,澄清器,过器,紫外线消毒器和水培培养床.
- 为了追踪的回收,进行了质平衡.
- 在经过处理的PPW和矿物肥处理之间,比较了生菜的生长和营养含量.
主要成果:
- 在经过处理的PPW上种植的生菜表现出增加的根生物量,但显著减少了芽生长和营养缺乏 (K,Mg,Ca,Cu) 的迹象.
- 不是限制性营养物质,大量留在废水中 (65.4%-83.0%).
- 控制pH值和补充N,P,K和微量营养素有效减轻了生长抑制.
结论:
- 经过处理的PPW是水培养的可行的营养来源,但需要谨慎管理.
- 有针对性的营养补充对于克服缺陷并优化生菜生长至关重要.
- 在家禽养殖系统中,平衡供应与植物需求对于有效利用营养是必不可少的.
相关概念视频
Overview of Nitrogen Metabolism
7.8K
Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of ammonia, ammonium ions, nitrate, nitrite, or nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
7.8K
Bioremediation
18.1K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.1K

