prikaz prve stranice dokumenta Utjecaj folija za malčiranje na distribuciju toka vode i pronos nitrata u tlu
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master's thesis
Utjecaj folija za malčiranje na distribuciju toka vode i pronos nitrata u tlu
Zagreb: University of Zagreb, Faculty of Agriculture, 2018. urn:nbn:hr:204:806375
Ferenčević, Anja
University of Zagreb
Faculty of Agriculture
Soil Amelioration

Institutional repository: Repository Faculty of Agriculture University of Zagreb

Cite this document

Ferenčević, A. (2018). Utjecaj folija za malčiranje na distribuciju toka vode i pronos nitrata u tlu (Master's thesis). Zagreb: University of Zagreb, Faculty of Agriculture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:204:806375

Ferenčević, Anja. "Utjecaj folija za malčiranje na distribuciju toka vode i pronos nitrata u tlu." Master's thesis, University of Zagreb, Faculty of Agriculture, 2018. https://urn.nsk.hr/urn:nbn:hr:204:806375

Ferenčević, Anja. "Utjecaj folija za malčiranje na distribuciju toka vode i pronos nitrata u tlu." Master's thesis, University of Zagreb, Faculty of Agriculture, 2018. https://urn.nsk.hr/urn:nbn:hr:204:806375

Ferenčević, A. (2018). 'Utjecaj folija za malčiranje na distribuciju toka vode i pronos nitrata u tlu', Master's thesis, University of Zagreb, Faculty of Agriculture, accessed 27 November 2024, https://urn.nsk.hr/urn:nbn:hr:204:806375

Ferenčević A. Utjecaj folija za malčiranje na distribuciju toka vode i pronos nitrata u tlu [Master's thesis]. Zagreb: University of Zagreb, Faculty of Agriculture; 2018 [cited 2024 November 27] Available at: https://urn.nsk.hr/urn:nbn:hr:204:806375

A. Ferenčević, "Utjecaj folija za malčiranje na distribuciju toka vode i pronos nitrata u tlu", Master's thesis, University of Zagreb, Faculty of Agriculture, Zagreb, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:204:806375

Metadata
TitleUtjecaj folija za malčiranje na distribuciju toka vode i pronos nitrata u tlu
Title (english)Influence of plastic mulch on water flow and nitrate distribution in soil
AuthorAnja Ferenčević
MentorVilim Filipović (mentor)
Committee memberVilim Filipović (predsjednik povjerenstva)
Committee memberGabrijel Ondrašek (član povjerenstva)
Committee memberBoris Lazarević (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Agriculture
(Soil Amelioration)
Zagreb
Defense date and country2018-09-20, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Agronomy
Abstract
Plastični malč u kombinaciji s navodnjavanjem predstavlja uobičajenu tehniku koja se prakticira u komercijalnoj proizvodnji povrća. Takvo gospodarenja može utjecati na distribuciju vode i hranjivih tvari, a time i utjecati na njihovu sezonsku dinamiku u tlu. Cilj rada bio je usporediti učinke različitih vrsta malča na temperaturu tla i procijeniti učinak plastičnog pokrova malč (MALČ) na vodu i dinamiku nitrata pomoću HYDRUS-2D numeričkog modela. Poljski eksperiment je proveden na području Istre s primijenjenom razinom gnojiva od 210 kg ha-1, što je putem numeričkog modeliranja reproducirano na područje Zagreba i jezera Vrana, opisanih primjenom različitih hidrauličkih parametara. Za usporedbu je korištena crna malč folija i kontrolna varijanta bez primjene malča u nasadu paprike (Capsicum annuuum L.). Praćenje dinamike vode i nitrata provedeno je pomoću ekstrakcijskih sondi i lizimetara koji su osigurali ulazne podatke za model HYDRUS-2D. Pokusni rezultati pokazali su da plastični sloj ima značajan utjecaj na režim temperature tla. HYDRUS-2D simulirani rezultati pokazali su dobru pouzdanost i bili u skladu s terenskim podacima o kumulativnoj količini procjedne vode i koncentracijama nitrata. Simulacije toka vode rezultirale su koeficijentom efikasnosti modela od 0,84 za kontrolu (KONT) i 0,56 za MALČ sustave, dok su simulacije nitrata pokazale učinkovitost modela od 0,83 (KONT) i 0,93 (MALČ). Dodatne simulacije pokazuju brži pronos nitrata ispod cijevi za kapanje u KONT sustavu, uglavnom zbog povećane površine pod oborinama zbog nedostatka pokrivanja tla. Numeričko modeliranje je pokazalo veliki utjecaj plastičnog pokrova na distribuciju vode i hranjivih tvari u tlu. Istraživane lokacije su pokazale razlike u koncentraciji i dubini pronosa nitrata, što je u direktnoj vezi s različitim hidrauličkim parametrima na pojedinoj lokaciji. Rezultati upućuju da se količina dušika primijenjena putem fertirigacije može smanjiti i optimizirati kako bi se smanjila mogućnost negativnog utjecaja na okoliš.
Abstract (english)
Plastic mulch in combination with drip irrigation is a common agricultural management technique practiced in commercial vegetable production. This management can result in various impacts on water and nutrient distribution and consequently affect nutrient dynamics in underlying soil. The aim of this work was to estimate the effect of plastic mulch cover (MALČ) on water and nitrate dynamics using HYDRUS-2D numerical model. Field experiment was designed on three locations in Croatia: Istra, Zagreb and Vrana lake with nitrogen fertilization level of 210 kg ha-1. Monitoring of water and nitrate dynamics was performed using lysimeters and suction cups which gave the input data for the HYDRUS-2D model. The experimental results showed that plastic mulch had a significant effect on the soil temperature regime. HYDRUS-2D simulated results showed good fitting to the field data in cumulative water and nitrate outflow. Water flow simulations produced model efficiency of 0.84 for control (KONT) and 0.56 for the MALČ systems, while nitrate simulations showed model efficiency of 0.83 (KONT) and 0.93 (MALČ), respectively. Additional simulations exposed faster transport of nitrates below the drip line in the KONT system, mostly because of the increased surface area subjected to the precipitation/irrigation because of the absence of soil cover. Researched locations showed difference in nitrate concentration and depth of the transport which was directly connected to the differences in soil hydraulic properties at particular location. Numerical modeling revealed large influence of plastic mulch cover on water and nutrient distribution in soil and suggested that the amount of nitrogen applied through the fertirigation may be reduced and optimized to avoid possible negative impact on the environment.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:204:806375
Study programmeTitle: Agricultural Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/ magistra inženjer/inženjerka poljoprivredne tehnike (magistar/ magistra inženjer/inženjerka poljoprivredne tehnike)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2018-10-12 09:31:47