master's thesis
Comparison of different methods of weed mapping in agricultural crops

Marija Mikić (2015)
Metadata
TitleUsporedba različitih metoda kartiranja u ratarskim usjevima
AuthorMarija Mikić
Mentor(s)Edita Štefanić (thesis advisor)
Abstract
Cilj ovog diplomskog rada je bio usporediti 3 različite metode kartiranja korova u 5 različitih usjeva, ravnajući se prema : mogućnosti usporedbe podataka, preciznosti pojedine metode, potrebnom vremenu, te vrijednosti svake metode s obzirom na mogućnost obrade više indikatora. Metode koje su korištene su : Braun-Blanquet metoda (Br.-Bl.), metoda slučajnih kvdrata (Random Quadrat Method – RQ), te metoda vizualne procjene (Visual Estimation of Percentage – VE). Tijekom istraživanja utvrđeno je ukupno 55 korovnih vrsta, od toga su 24 vrste zabilježene u strnim žitaricama, a 40 korova je nađeno u okopavinskim usjevima. U svakom od usjeva (ozimoj pšenici, jarom ječmu, suncokretu, kukuruzu i šećernoj repi) primjenjene su sve 3 metode kartiranja, te su međusobno uspoređene. Pokus je postavljen 2013.godine a metode kartiranja po kulturama su dale sljedeće rezultate : ozimoj pšenici je tijekom istraživanja utvrđeno je ukupno 19 korovnih vrsta, Br.-Bl. metodom evidentirano je njih 16, RQ 15, a VE metodom 17. U jarom ječmu utvrđeno je ukupno 14 korovnih vrsta, Br.-Bl. metodom evidentirano je 13, RQ metodom 8, te VE metodom 14. U šećernoj repi utvrđeno je 20 korovnih vrsta, Br.-Bl. zabilježeno je svih 20, RQ metodom 15, te VE metodom također svi 20 korovnih vrsta. U suncokretu je zabilježene 26 korovnih vrsta, Br.-Bl. metodom je evidentirano svih 26, VE metodom 19, a kod RQ je izostala samo jedna korovna vrsta te je evidentirano njih 25. U kukuruzu je utvrđeno 17 korovnih vrsta, Br.-Bl. metodom, te VE metodom je eidentirano svih 17, dok je RQ metodom evidentirano 15 korovnih vrsta. Iz svega navedenog možemo zaključiti da su Br.-Bl. metoda, te metoda vizualne procjene (VE) mnogo preciznije od metode slučajnih kvadrata (RQ).
Keywordsweed species weed mapping methods crops winter wheat spring barley sunflower corn sugar beet
Parallel title (English)Comparison of different methods of weed mapping in agricultural crops
Committee MembersDražen Horvat
Sanda Rašić
GranterSveučilište Josipa Jurja Strossmayera u Osijeku
Poljoprivredni fakultet
Lower level organizational unitsZavod za Zaštitu bilja
PlaceOsijek
StateCroatia
Scientific field, discipline, subdisciplineBIOTECHNICAL SCIENCES
Agronomy
Crop Production
Study programme typeuniversity
Study levelgraduate
Study programmePlant Production, specialization: Plant Production, Plant Nutrition and Soil Science, Plant Selection and Seed Production, Plant Protection
Academic title abbreviationmag. ing. agr.
Genremaster's thesis
Language Croatian
Defense date2015-09-25
Parallel abstract (English)
The main goal of this thesis work was to compare 3 different methods of mapping weeds in 5 different agricultural crops, acording to : possibility of data comparison, accuracy of individuals methods, required time, and the value of each method. 3 methods that are used in this thesis work are : Braun – Blanquet method ( Br.-Bl.), Random quadrat method ( RQ), and Visual estimation of percentage (VE). During the experiment 55 weed species are found, 24 species are identified in grain cereals and 40 in crops that were earthed - up . In each of the crops (winter wheat, spring barley, sunflower, corn and sugar beet) have been applied all 3 methods of mapping. The experiment was set in 2013. and the methods gave the following results : in winter wheat 19 weed species were found, using Br.Bl. methods 16 of them were identified, with RQ 15, and using VE method 17. In spring barley was found a total of 14 weed species, using the Br.-Bl. method we identified 13, with RQ method 8, and VE method we identified all 14. In sugar beet was determined 20 weed species, using Br.-Bl. and VE method all 20 weed species were identified, and using RQ method 15 weed species. In sunflower we recorded 26 weed species, using Br.-Bl. method we identified all 26, VE method 15, and with RQ method 25. In the corn we determined 17 weed species, using Br.-Bl. and VE method we identified all 17 of them, and using RQ method 15. From all the data in this work we can see that Br.-Bl. method and VE method are much more accurate then RQ method.
Parallel keywords (Croatian)korovne vrste metode kartiranja korova ozima pšenica jari ječam suncokret kukuruz šećerna repa
Resource typetext
Access conditionOpen access
Terms of usehttp://rightsstatements.org/vocab/InC/1.0/
Notediplomski rad
URN:NBNhttps://urn.nsk.hr/urn:nbn:hr:151:187630
CommitterLjiljana Vučković Vizentaner