空气栽培系统设计:考虑和挑战

IF 2.4 4区 农林科学 Q2 AGRICULTURAL ENGINEERING Journal of Agricultural Engineering Pub Date : 2022-09-15 DOI:10.4081/jae.2022.1387
Albert Min, N. Nguyễn, L.M. Howatt, Marlowe Tavares, Jaho Seo
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引用次数: 0

摘要

环境控制农业(CEA)有望加强当前的农业生产系统,同时限制对土地、水和能源资源的压力。然而,它的使用尚未被广泛采用,部分原因是工程设计考虑因素和相关挑战尚不清楚。这在气培中更为明显,在控制雾化的额外成本和复杂性方面,还没有建立起比简单的水培系统更大的优势。为了阐明这些考虑和挑战,一个仪器气培系统的原型,其目标是为各种绿叶蔬菜创造一个定量的生长模型。首先考虑的是,压力旋流雾化器与隔膜式压力罐配对,以提供有效雾化所需的必要压力。其次,从反渗透(RO)水中按需混合营养液和浓缩营养液,然后用容积泵泵入压力罐中。一个以竹子为基础的基质,允许发芽和延长植物生长,由不锈钢网和PVC框架支撑,作为生长托盘。最后,开发了一个相机微服务平台,利用基于计算机视觉像素的分割方法对植物生长进行量化。
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Aeroponic systems design: considerations and challenges
Controlled Environment Agriculture (CEA) holds promise as a way to intensify current agricultural production systems while limiting pressures on land, water, and energy resources. However, its use has not yet been widely adopted, in part because the engineering design considerations and associated challenges are not well known. This is even more apparent for aeroponics, where the additional cost and complexities in controlling atomization have yet to establish an advantage in scale over simpler hydroponic systems To shed light on these considerations and challenges, an instrumented aeroponic system was prototyped with the goal of creating a quantitative model of growth for various species of leafy greens. As the first consideration, pressure swirl atomizers were paired with a diaphragm-type pressure tank to supply the necessary pressures needed for effective atomization. Secondly, nutrient solution was mixed on-demand from Reverse Osmosis (RO) water and concentrated nutrient stock then pumped into the pressure tank using a positive displacement pump. A bamboo-based substrate that allowed both germination and extended vegetative growth was supported on a stainless steel mesh and PVC frame acting as a grow tray. Finally, a camera microservice platform was developed to quantify plant growth using a computer vision pixel-based segmentation method.
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来源期刊
Journal of Agricultural Engineering
Journal of Agricultural Engineering AGRICULTURAL ENGINEERING-
CiteScore
2.30
自引率
5.60%
发文量
40
审稿时长
10 weeks
期刊介绍: The Journal of Agricultural Engineering (JAE) is the official journal of the Italian Society of Agricultural Engineering supported by University of Bologna, Italy. The subject matter covers a complete and interdisciplinary range of research in engineering for agriculture and biosystems.
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