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Smart hydroponic system
Seč, Filip ; Juráň, Radovan (referee) ; Benešl, Lukáš (advisor)
This bachelor thesis focuses on the implementation of a smart hydroponic system with the capability of remote control and monitoring via a web interface. The main objective of the work is to design and implement hardware and software components for this system. Within the scope of the work, it is important to familiarize oneself with the issues of hydroponics and explore various types of hydroponic systems and their usage. Focus will also be given to the analysis of the advantages and disadvantages of individual types of hydroponics. The next step involves getting acquainted with microcontrollers and sensors that will be used within the hydroponic system. Based on this, we will design a schematic connection and a printed circuit board (PCB) for the system. After designing the hardware, the implementation follows, along with bringing the de- signed modules to life. At this stage, it is necessary to program the individual modules so that they are able to communicate and process data. An important step is the design of communication with the web interface, which will enable data reading and system control. In this way, it will be possible to monitor the hydroponic system remotely. At the conclusion of the work, we verify the overall functionality of the system and compare it with existing commercial solutions available on the marke
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Automatical plant growing
Stupka, Tomáš ; Dřínovský, Jiří (referee) ; Götthans, Jakub (advisor)
The aim of the thesis is to design and an automated hydroponic station, which will be intended for the cultivation of herbs and vegetables for the purpose of user. The station will be controlled by a Raspberry Pi minicomputer, to which a number of sensors will be connected, which will check pH, EC, ambient temperature and other quantities. Furthermore, an external sensor with an ATMEGA328P control processor will be designed to check the ambient lighting parameters. A web interface will be created for the station, which will allow the user to follow the development of individual measured quantities over time.
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The Permaculture and the City
Sukopová, Dagmar ; Utíkalová, Ivana (referee) ; Mléčka, Jan (advisor)
In my diploma thesis, I wanted to outline the possibilities of gradual revitalization of our cities in the spirit of permaculture and at the same time support food self-sufficiency by designing fruit parks, community and roof gardens for commercial and non-commercial use. The work deals with the idea of integrating agriculture into the urban environment in local conditions. The application of urban agriculture, especially in Western countries, is already quite common. The work should serve as a guide to creating a more sustainable urban environment.
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Hydroponic farm as a business project
SMUTNÁ, Marta
The aim of this thesis is to verify the economic efficiency and environmental impacts of the practical application of bioeconomics in the form of a business project for the hydroponic farm built by an educational institution. The project plan evaluates the economic efficiency of the alternative method of plant cultivation. The economic analysis is followed by an evaluation of the environmental impacts of hydroponic cultivation. The first chapters of the thesis focus on the theory of bioeconomics, hydroponic cultivation and a description of current world megatrends. The thesis also discusses the role of hydroponics in the context of global challenges and the European Union´s view on hydroponics. It is followed by a chapter describing the methodology for proceeding with the development of a business plan and a cost-benefit analysis methodology. These methodologies provide guidelines for the practical part. The first part of the practical part of this thesis focuses on the business plan for the hydroponic farm project, which includes several subchapters and analyses. First, the characteristics of the owner, project and products are described, followed by analyses of the market, customers, competitors and suppliers, then the staffing, marketing strategy are described and the project implementation schedule is presented. All costs and revenues are quantified in detail in the individual chapters and from these, a financial plan is summarized, including financial statements and projections for various scenarios and options for financing the project. Subsequently, the economic management of the project and its potential success is evaluated using evaluation indicators, risk analysis, PESTEL, Porter's analysis of 5 competitive forces and SWOT analysis. The hydroponic project is then compared with the conventional agriculture production within the cost-benefit analysis and evaluated from an environmental perspective in association with theoretical knowledge and information.
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Experimental cultivation systems in root system research
Střelec, Petr ; Soukup, Aleš (advisor) ; Lhotáková, Zuzana (referee)
The growing awareness of plant root importance has contributed to the continuous development of cultivation methods that facilitate more efficient and effective root research. Due to their sessile nature, plants rely extensively on roots for water and ion absorption (Meister et al., 2014). As a result, plant roots must adjust to an array of unfavorable conditions such as salinity, drought, and high temperatures. To better understand root response and promote agricultural development, researchers simulate various stressors in controlled conditions. More recently developed transparent soils and soilless cultures aim to overcome the limitations of traditional soil cultivation, which include imprecise variable control, heterogeneous conditions, and destructive root sampling (Gregory et al., 2009). When planning an experiment, it is crucial to select an appropriate cultivation method to ensure success. The aim of this thesis is to provide a comprehensive overview of the benefits and limitations of commonly used cultivations techniques in plant stress research. Transparent soil reliably mimics the mechanical properties of soil whilst allowing for easy root access and use of numerous visualization techniques. On the other hand, it still maintains the need for a larger cultivation area just like soil. The...
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Design of a lifting mechanism for artificial lighting for hydroponic cultivation
Černoch, Lukáš-David ; Máša, Vítězslav (referee) ; Naď, Martin (advisor)
The work deals with the optimization of lighting for hydroponic systems in terms of energy efficiency, using a lifting mechanism. It is based on the selection of a suitable lighting, stroke solutions and the possibility of simple automation. The introductory part analyzes the basic principles and variants of hydroponic farms, their advantages, disadvantages and description of partial parts. The work is focused on the design of the light lifter mechanism, so it describes in more detail the different types of lighting for growing plants, and also summarizes the various lifting mechanisms from which it is chosen the most suitable. Subsequently, a 3D model of the selected mechanism was created including a motion study. The final part of the practical part was the price return calculation of the mentioned mechanism.
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Community vermicomposting of biodegradable municipal waste
Klubalová, Kateřina ; Innemanová, Petra (advisor) ; Hnátková, Tereza (referee)
The method of vermicomposting experiences a big boom nowadays. The people living in flats can process bio-waste, which they produce on their own. Therefore, the amount of biodegradable municipal waste contained in the dumped mixed municipal waste slightly reduces. In addition, people can benefit from high-quality products called vermicompost and its leachate called worm tea. In this work I summarize acquired knowledge about the vermicomposting focusing on kitchen waste, about conditions, which this method demands, about composition and the possibility of using the end products. Also, it is discussed which bio-waste is suitable for vermicomposting and what earthworm species can be used. The theoretical side of using worm tea in the hydroponic cultivation of plants is discussed. The toxicity of different concentrations of worm tea on a seeds of Sinapis Alba was tested in the experimental part. The concentration row 2,5; 5,0; 7,5; and 10,0 vol. % of four different samples of worm tea from different bio- waste was used. Distilled water was used as a control solution. The values of inhibition for each concentration of worm tea were calculated. Available literature recommends to dilute worm tea in ratio of 1:9 with water. However, the results showed that this dilution is already inhibitory for some...
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Combined mocrobial treatmens in hydroponic cultivation of tomato and cucumber the effect on yield parameters and antioxidant contens in fruits
Pikorová, Markéta ; Albrechtová, Jana (advisor) ; Látr, Aleš (referee)
Some microorganisms are known to form mutualistic symbiosis with plant roots and by their impact they can improve some plant parameters. These symbiotic microorganisms, which are able to improve some plant parameters, include especially mycorrhizal fungi, plant growth promoting bacteria and some saprotrophic mycoparasitical fungi. Mechanisms of changes of these parameters, as influenced by symbiotic microorganisms, are known only in part and nowadays are being actively researched. Aims of this work were to find out if selected microbial treatments influence selected growth, physiological and yield parameters of plants and contents of selected substances in fruits. Within this work were made three pot greenhouse experiments (experiments 1, 2 and 3) and three pilot greenhouse experiments (experiments 4, 5 and 6), performed on tomato (Solanum lycopersicum) and cucumber (Cucumis sativus) plants. Plants were grown in hydroponics using a carrier of rockwool and they were watered by nutrient solution. As microbial treatments for plants in experiments have been used a mixture of arbuscular mycorrhizal fungi (AM), mixture of plant growth promoting bacteria (PGPB), saprotrophic mycoparasitical fungus Trichoderma harzianum (Th) and various mutual combinations of these treatments. There have been observed...
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Thorium accumulation and study of stress responces of plants on thorium presence
Kufner, Daniel ; Soudek, Petr (advisor) ; Petrová, Šárka (referee)
The ability of the accumulation of thorium and study of the stress responses on his presence was tested on a selected cultivar of tobacco, La Burley 21. Plants were cultivated in Hoagland's hydroponic medium under artificial light. Except to the ability of accumulation and distribution of thorium in the all parts of plant was investigated the effect of selected organic and inorganic additions on accumulation. Among organic substances included citric acid, tartaric and oxalic acid in their presence was observed the increase of thorium in all parts of the plant. Were also tested products from the diamine and polyamines (putrescine, cadaverine, spermine and spermidin). These substances, also known for their antioxidant activity in plants, had an impact on reducing the accumulation of thorium, especially in the root system of plants. The most important factor influencing the accumulation of thorium was the absence of phosphate ions in a hydroponic medium, which caused the rise of the concentration of thorium about several levels in all parts of the plants. The initial decrease of pH after additions of organic acids or addition of high concentrations of thorium and the gradual increase of pH during cultivation had proved significant. It was also compared the uptake of accumulation and distribution of...
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Balance of energy, water and nutrients in the aquaponic cycle
Szotkowski, Matěj ; Procházková, Michaela (referee) ; Máša, Vítězslav (advisor)
Předložená diplomová práce byla zpracována s cílem vytvořit přehled poznatků v oblasti akvaponické potravinové produkce. Informace získané během tvorby tohoto přehledu pak měly vést, v kombinaci s daty získanými z funkčního provozu, k vytvoření matematického modelu akvaponického cyklu. Na akvaponické farmě provozované společností Flenexa plus s.r.o., která byla zdrojem potřebných procesních dat, měla být dále zpracována a vyhodnocena bilance energie a vody. Nakonec měla být v průběhu práce posouzena možnost implementace mikrořasového fotobioreaktoru do akvaponického cyklu. Úvod práce představuje motivaci vedoucí k potřebě inovovat dnešní potravinovou produkci. Kriticky jsou zhodnoceny predikce vývoje lidské populace, a to pak hlavně z pohledu dopadu, který by tento růst měl na zemědělskou produkci. Současná situace se na základě získaných poznatků ukazuje jako neudržitelná, primárně pak v oblastech vodohospodářství a energetické spotřeby. Následně je jako možné řešení vedoucí ke zlepšení udržitelnosti potravinové produkce zkoumána akvaponie. Akvaponie je definována a její jednotlivé komponenty jsou představeny z hlediska mechanismu jejich fungování a z pohledu jejich návrhu. Mezi popsané oblasti patří například principy tzv. coupled a decoupled akvaponie a popis možných typů hydroponického komponentu. V této části práce je pozornost věnována také představení cyklů jednotlivých živin v rámci akvaponie. Následující a poslední teoretická část práce je pak věnována mikrořasovému fotobioreaktoru. Jsou zde popsány mechanismy, jak motivující, tak odrazující od zakomponování bioreaktoru do akvaponie. V oblasti výhod se jedná hlavně o jeho roli ve stabilizaci pH a spotřebě toxikého amoniaku. Na druhou stranu jeho ekonomické dopady na profitabilitu akvaponie jsou velmi proměnlivé v závislosti na způsobu implementace. Samotný mikrořasový fotobioreaktor je pak v práci detailněji představen. Jednotlivé procesní ukazatele ovlivňující růst řas jsou rozebrány, a to společně s jednotlivými typy fotobioreaktoru, metodami sklizně a využitími pro vyprodukované mikrořasy. Na základě poznatků schromážděných v této práci pak lze jako nejvhodnější k implementaci do akvaponie doporučit hybridní fotobioreaktory, u kterých je většina osvětlení zajištěna v podobě slunečního svitu. Samotná experimentální část práce pak začíná popisem zkoumaného provozu společnosti Flenexa plus s.r.o. z pohledu aplikovaného akvaponického procesu. Jednotka podrobená měření byla provozně stabilní a využívala implementace hydroponického komponentu typu Deep Water Culture (DWC). Spolu s detailním popisem celého provozu jsou poskytnuty a vyhodnoceny vypracované bilance vody a energií. Pozornost je pak přesunuta k matematickým modelům vypracovaným a ověřeným na základě dat a poznatků shromážděných z provozu společnosti Felenexa plus s.r.o. Logika a algoritmy, na kterých jsou oba modely postaveny, jsou v této části vysvětleny a diskutovány společně s hlavními funkcemi a schopnostmi obou modelů. První, primárně statistický model je představen jako nástroj pro použití při uvádění akvaponie do provozu. Druhý, fyzikální model pak v uživatelsky přívětivém formátu představuje základ pro model řízení akvaponické farmy s mikrořasovým fotobioreaktorem. V neposlední řadě jsou nastíněny také cesty možného budoucího vývoje pro oba vytvořené modely. Práce je následně završena shrnutím a diskusí nad poznatky a výstupy získanými během celého tvůrčího procesu.
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