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master's thesis
Usporedba TDR metode (Time Domain Reflectometry) i metode tenziometra u praćenju sadržaja vode u tlu
Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of agriculture, 2017. urn:nbn:hr:151:640524
Jaić, Mislav
Josip Juraj Strossmayer University of Osijek
Faculty of Agrobiotechnical Sciences Osijek
Department of Plant Production and Biotechnology

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Jaić, M. (2017). Usporedba TDR metode (Time Domain Reflectometry) i metode tenziometra u praćenju sadržaja vode u tlu (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek. Retrieved from https://urn.nsk.hr/urn:nbn:hr:151:640524

Jaić, Mislav. "Usporedba TDR metode (Time Domain Reflectometry) i metode tenziometra u praćenju sadržaja vode u tlu." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, 2017. https://urn.nsk.hr/urn:nbn:hr:151:640524

Jaić, Mislav. "Usporedba TDR metode (Time Domain Reflectometry) i metode tenziometra u praćenju sadržaja vode u tlu." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, 2017. https://urn.nsk.hr/urn:nbn:hr:151:640524

Jaić, M. (2017). 'Usporedba TDR metode (Time Domain Reflectometry) i metode tenziometra u praćenju sadržaja vode u tlu', Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, accessed 12 September 2024, https://urn.nsk.hr/urn:nbn:hr:151:640524

Jaić M. Usporedba TDR metode (Time Domain Reflectometry) i metode tenziometra u praćenju sadržaja vode u tlu [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek; 2017 [cited 2024 September 12] Available at: https://urn.nsk.hr/urn:nbn:hr:151:640524

M. Jaić, "Usporedba TDR metode (Time Domain Reflectometry) i metode tenziometra u praćenju sadržaja vode u tlu", Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, Osijek, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:151:640524

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TitleUsporedba TDR metode (Time Domain Reflectometry) i metode tenziometra u praćenju sadržaja vode u tlu
Title (english)Controlling of soil water content with TDR method (Time Domain Reflectometry) and tensiometer methods
AuthorMislav Jaić
MentorMonika Marković (mentor)
Committee memberJasna Šoštarić (predsjednik povjerenstva)
Committee memberVladimir Zebec (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Agrobiotechnical Sciences Osijek
(Department of Plant Production and Biotechnology)
Osijek
Defense date and country2017-09-28, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Agronomy
Crop Production
Abstract
U završnom radu prikazane su i uspoređene metode TDR-a (Time Domain Reflectrometry) i tenziometra za praćenje sadržaja vode u tlu. Uređaji su umjereni za tlo na pokušalištu te su izmjerene vrijednosti uspoređene. Istraživanje je postavljeno na pokušalištu Poljoprivrednog instituta Osijek 2017. godine (45o32'S i 18o44'I, 90 m. n. m.). Uređaji za mjerenje sadržaja vode u tlu postavljeni su na pokusne parcele na kojima je posađen grašak. U istraživanju nije bilo tretmana navodnjavanja tako da je praćena dinamika sadržaja vode u tlu kao posljedica količine i rasporeda oborine ili kao posljedica eventualnog utjecaja podzemne vode. Usporedno s mjerenjem sadržaja vode u tlu tenziometrima i TDR uređajem uzorkovano je tlo s dubina na kojima je mjerena vlažnost tla. Prema rezultatima istraživanja uređaji su uglavnom registrirali promjene u vlažnosti tla. U prosjeku vrijednosti na tenziometrima bile su 36 cbar (30 cm) te 31,6 cbar (45 cm). Tijekom istraživanja vrijednosti na tenziometru koji je bio postavljen na 30 cm bile su u rasponu od 18 do 55 cbar, a na dubini od 45 cm vrijednosti su bile od 12 do 60 cbar. TDR mjerenja kod senzora duljine 10 cm bile su u rasponu od 10 do 36,6 vol. %, a kod senzora 30 cm duljine vrijednosti su bile u rasponu od 13,2 do 48,5 vol. %. Tijekom većeg dijela razdoblja istraživanja sadržaj vode u tlu na obje bio je oko vrijednosti lentokapilarne vlažnosti te je nedostatak vode u tlu bilo potrebno nadoknaditi navodnjavanjem. Utvrđena je vrlo jaka negativna korelacija između tenziometra i trenutne vlažnosti tla (r = - 0,8*), te vrlo jaka pozitivna korelacija između očitavanja TDR-a i trenutne vlažnosti tla (r = 0,8*).
Abstract (english)
This thesis is about the use of TDR (Time Domain Reflectometry) method and tensiometer method for measuring of soil water content for making a decison when to irrigate. The devices were calibrated for soil at a trial field and the measured values are compared. The research was set up at a trial field of Agricultural institute in Osijek during 2017 (45o32'S and 18o44'I, 90 AMSL). Devices used for measuring water soil content were set up in experimental plots in which peas plants are planted. There were no treatments of irrigation in this research, so the dynamic of water content in soil was measured as a result of amount and distributiom of rainfall or as a result of groundwater influence. Comparatively with measuring the soil water content with tensiometers and TDR device, the soil was sampled for gravimetric method from depths in which soil humidity was measured. In average the tensiometer readings on 30 cm depth was 36 cbar while on 45 cm depth the average reading was 31,6 cbar. On 30 cm tensiometer readings ranged from 18 do 55 cbar while on 45 cm tensiometer readings ranged from 12 to 60 cbar. As for TDR the readings ranged from 10 to 36,6 vol. % on 10 cm depth while on 30 cm readings ranged from 13,2 to 48,8 vol. %. In average both sensors for measuring soil water content have registered the changes in soil moisture. According to results in mainly part of the research period the soil water content was very low and there was a need to compensate the lack of water with irrigation. A strong negative correlation relationship was determined between tensiometer and current soil moisture ( r = - 0.8*), and a strong positive correlation relationship between TDR readings and current soil moisture (r = 0.8*).
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:151:640524
Study programmeTitle: Plant Production; specializations in: Plant Production, Plant Nutrition and Soil Science, Plant Selection and Seed Production, Plant Protection
Course: Plant Production
Study programme type: university
Study level: graduate
Academic / professional title: magistar/ magistra inženjer/inženjerka bilinogojstva (magistar/ magistra inženjer/inženjerka bilinogojstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Public notediplomski rad
RepositoryRepository of the Faculty of Agrobiotechnical Sciences Osijek
Created on2017-10-23 12:03:57