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Fraktalna dimenzija poljoprivrednih parcela prema prinosu kukuruza

dc.contributor.authorMarques da Silva, Jose Rafael
dc.contributor.authorde Sousa e Silva, Luís Leopoldo
dc.contributor.authorOliveira Sousa, Adelia Maria
dc.date.accessioned2015-04-11T11:28:29Z
dc.date.available2015-04-11T11:28:29Z
dc.identifier.urihttp://arhiva.nara.ac.rs/handle/123456789/498
dc.description.abstractBefore making any decisions, all farm managers would like to have some indication about the effectiveness of a particular investment, especially when investing in precision agriculture technologies. Usually, the best indicator should be associated with the yield geometric complexity and its spatial and temporal dynamics. The fractal dimension of corn yield in a given year was calculated for six studied parcels, considering the fractal dimension of yield buffer zones above and below average yield. The less complex geometries usually have a fractal dimension close to the unit which can reach a value close to 2 in more complex geometries. This study shows that the number of yield buffer zones, above or below average yield, changes over time, with a different pattern, from parcel to parcel, and that there is a greater change in the smaller yield buffer zones compared to the larger ones. Fractal dimension can be a very strong indicator when the spatial complexity of a particular parcel is considered, and it is therefore a strong indicator of the greater or lesser need for precision agriculture technologies. The higher the fractal dimension of a given parcel, the higher will be the economic and environmental return of that parcel, when using precision agriculture technologies.en
dc.description.abstractPre donošenja bilo kakvih odluka, menadžeri farmi bi hteli da imaju neka predviđanja efikasnosti pojedinih investicija, posebno kada ulažu u tehnologije precizne poljoprivrede. Obično, najbolji indikator se može povezati sa geometrijskom složenošću prinosa i njegovom prostornom i vremenskom dinamikom. Fraktalna dimenzija prinosa kukuruza u datoj godini bila je izračunata za šest ispitivanih parcela, uzimajući u razmatranje fraktalne dimenzije dodatnih opsega prinosa iznad i ispod njegove prosečne vrednosti. Manje kompleksne geometrije obično imaju fraktalnu dimenziju blisku jedinici koja može da postigne vrednost blisku 2 u kompleksnijim geometrijama. Ovo istraživanje pokazuje da se broj dodatnih opsega prinosa, iznad ili ispod srednje vrednosti prinosa, menja tokom vremena, na različite načine na pojedinim parcelama, kao i da značajnije promene postoje kod manjih dodatnih opsega prinosa u poređenju sa većim. Fraktalna dimenzija može da bude veoma čvrst indikator kad se razmatra prostorna kompleksnost pojedine parcele, pa je time i značajan indikator veće ili manje potrebe za tehnologijama precizne poljoprivrede. Što je veća fraktalna dimenzija jedne parcele, veći će bit ekonomski i ekološki rezultat na toj parceli, pri primeni postupaka precizne poljoprivrede.sr
dc.subjectfractal geometryen
dc.subjectyielden
dc.subjectspatialen
dc.subjecttemporalen
dc.subjectvariabilityen
dc.subjectmaizeen
dc.subjectfraktalna geometrijasr
dc.subjectprostorna i vremenska promenljivost prinosasr
dc.subjectkukuruzsr
dc.titleThe Fractal Dimension of Agricultural Parcels Considering Maize Yielden
dc.title.alternativeFraktalna dimenzija poljoprivrednih parcela prema prinosu kukuruzasr


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  • Issue 2012-1.
    www.jageng.agrif.bg.ac.rs/files/casopis/PT_01-2012.pdf

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