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Využití bezpilotního průzkumu pro hodnocení porostů v precizním zemědělství
Petr, Zdeněk
The bachelor thesis „Utilization of remote sensing in evaluating of crop fields in precision agriculture“ contains brief description of spectral reflectance electromagnetical raditation principal usage, status of field crops diagnosis with usage of vegatation indices and with option of remote sensing, which is used for information collection in precision agriculture. Major part of thesis is dedicated to unmanned aerial vehicles operations, their legislation, usage of agriculture for planning of crop interventions and support for decision-making in agrotechnological operations. The model study at end describes possible rentability of remote sensing by unmanned aerial vehicles in private company.
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Zpracování podkladů pro variabilní aplikaci hnojiv v precizním zemědělství pomocí geografických informačních systémů
Paulová, Nikol
This thesis is focused on P, K and Mg fertilizing in precision agriculture all shown on a model of winter wheat with expected yield of 7,7 t.ha-1. Although it is a model, it is based on the specific results of laboratory analysis of the collected samples from the lands around Otnice village. Six options of fertilizing were compared. Four of them concerned variable application; in accordance with the principles of precision farming, spatial differences in the content of nutrients P, K, Mg were taken into account. Two variants of variable-rate fertilization were calculated using the yield potential made from satellite imagery. Variable rates were defined with geographic information system environment. The other two options were computed with the traditional approach, when the land is treated as uniform unit and only one amount of the fertilizer is applied to it. There were two methods used for correction the fertilizer amount. One traditional and other could have divided the parcels into sixteen classes instead of five as traditional method. The variable variation which took into account the spatial differences in nutrient content and also the yield potential was evaluated as the most optimal option.
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Detekce napadení obilnin listovými chorobami pomocí termálního zobrazování, zobrazovací fluorescence a spektrální odrazivosti
Mezera, Jiří
In the theoretical part of this thesis there is summarized the basic knowledge about the fungal leaf diseases of cereals, their harmfulness and technologies of precision agriculture. The practical part deals with the detection of cereal infestation with fungal leaf diseases using noninvasive optical methods. The research was conducted on winter wheat using methods based on spectral reflectance, infrared thermal imaging, chlorophyll fluorescence imaging, and blue-green fluorescence imaging. The tested diseases were powdery mildew (Blumeria graminis f. sp. tritici), wheat stripe rust (Puccinia striiformis), and wheat leaf rust (Puccinia recondita f.sp. tritici).). In the case of spectral reflectance, the best results were obtained for spectral indices ANMB650-725 and ZM generally. Overall, the best results for all methods were achieved in the detection of wheat leaf rust. A very good indicator of disease infestation was infrared thermal imaging, with a higher level of infection implying an increase in leaf temperature and a lower difference between leaf and air temperature. Reliability of detection by chlorophyll fluorescence imaging differs between individual diseases, with the best results being generally achieved for actual quantum yield PSII and the non-photochemical quenching. The most promising method for the future is the blue-green fluorescence imaging, which achieved very good results for both, the estimation of infection level and contrast between the infected and the healthy part of the leaf.
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Ověření senzorového systému OptRx pro variabilní aplikaci dusíkatých hnojiv
Čujek, Jan
The diploma thesis deals with the technology of precious agriculture. One of the technology used in the type of agriculture mentioned above is N – detectors, which are based on spectral measuring of vegetation. The theoretical part is focused on the principles and methods of vegetation scanning by the detectors, the importance of the nitrogen nutrition of field crops and the summary of available N – detectors. The practical part consists of the working experiment with winter wheat when the N detectors OptRx by Ag leader were tested during the years 2016 and 2017. The differences between the variable and surface application of nitrogen fertilizers on the same area were observed from the point of view of the yield, the quality of winter wheat and also the fertilizers costs. In the result part, the results of particular testing years are compared. The economic effect in 2016 was better after using variable application amount to 3314 czk.ha-1. In 2017 it was just the opposite. The result was -2588 czk.ha-1 compared to the surface application. There were found out big differences among the particular years and the areas. In conclusion, it is not clear how big effect the variable application of nitrogen fertilizers has. The conditions of the location, the weather, the year of testing, the variety and the agronomical arrangements play the crucial role.
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Vyhodnocení systému Isaria Crop Sensor v podmínkách konkrétního podniku
VONDRÁČEK, Jan
The diplom thesis presents some elements of precision agriculture and their possible use. The thesis focuses on using the elements of precision farming in practice. In the practical part, the work is focused on the practical use of the sensor system Isaria Crop sensor N in the conditions of the agricultural company Kooprodukt Lišov a.s.
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Porovnání zpracování půdy s využitím a bez použití GPS technologie
VANĚK, Martin
This bachelor thesis deals with the comparison of the operational and economic parameters of operation of a selected vehicle used for tillage. The bachelor thesis is divided into two main parts, theoretical and practical. The theoretical part provides an introduction to satellite navigation, describes the most important navigation systems, the structure of the GPS system and basic principles of its operation. The theoretical part also deals with the use of GPS navigation in current agricultural machinery and precision agriculture. The practical part compares the use of manual control and guidance by GPS navigation in soil processing.
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Využití dronů v konkrétních podmínkách zemědělského podniku
KOHOUT, Jan
The thesis deals with the use and utilization of drones, especially in agricultural conditions, where the drones are used more and more frequently in recent years, especially in combination with precision farming, thanks to the great number of advantages that this technology currently brings, not only to agricultural sector. In the thesis there are types of drones that are used for precision agriculture. In addition, there are described the functions of drones used and their distribution according to their deployment on the farm. Finally, questions will be answered about the amount of investment in this technology and the assessment of the effectiveness of the systems.
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Use of unmanned aerial vehicles for precision agriculture
Fialová, Kateřina ; Matějíček, Luboš (advisor) ; Brůna, Josef (referee)
6 Abstract This bachelor thesis deals with the use of unmanned aerial vehicles (UAV) in precision agriculture. UAVs are one of the many tools used in Earth remote sensing (RS), their task is to monitor object without physical contact. Over the past 20 years, UAVs have been expanding in a wide variety of areas, massively in precision agriculture. This thesis compares the UAV with the classical means of RS and through demonstrations of real UAV deployment in selected case studies - Applications of Low Altitude Remote Sensing in Agriculture, Weed Mapping using Object-Based Analysis of UAV images, Low-altitude, high- resolution aerial imaging systems for row and field crop phenotyping and Estimating Biomass using Crop Surface Models show wide possibilities of data collection, processing and evaluation, covering the full spectrum of important information usable in precision agriculture. UAVs and their use in precision agriculture is an area that is expected to expand dynamically and which, compared to standard data collection, only positives. The greatest advantage is immense flexibility in terms of both deployment and sensor layout, high accuracy of data acquisition, ease of operation, affordability and, consequently, the availability of software specialized in processing such data. The only possible...
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The use of unmanned aerial vehicles in agriculture.
Starý, Karel ; Kroulík, Milan (advisor) ; Petrásek, Stanislav (referee)
Unmanned aerial vehicles has been a fast developing field over the last couple of years Farmers have been trying to take profit from this development and are interested in various options of applications. Demands on the area of agricultural production have been increasing, especially higher effectivity and the economical aspect of production are in focus. Farmers seek for the information about crop statuses and cattle in pursuit of economical rentability and enviromental sustainability. Due to this awareness farmers can take measures to reach economical profit. In the form of literature review the thesis describes construction types, their power options and the suitability for particular application is evaluated. Furthermore, scanning varieties and particular examples of applications are mentioned.
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