Access restricted to students and staff of home institution
master's thesis
The impact of agricultural production on the composition of humus

Ivona Đurašin (2016)
Sveučilište u Zagrebu
Agronomski fakultet
Opća proizvodnja bilja
Metadata
TitleUtjecaj poljoprivredne proizvodnje na sastav humusa
AuthorIvona Đurašin
Mentor(s)Aleksandra Bensa (thesis advisor)
Abstract
Humus je sastavni dio organske tvari tla, a njegov sastav ovisi o izvornoj organskoj tvari, uvjetima njene transformacije, mikrobiološkoj aktivnosti i svojstvima tla. Poljoprivredna proizvodnja mijenja izvorna svojstva tla, a posljedično tome i sastav humusa. Cilj ovog rada je temeljem postojeće literature dati prikaz utjecaja različitih agrotehničkih mjera (obrada tla, plodored, gnojidba, pesticidi, hidromelioracije) na sastav humusa u antropogenim tlima, odnosno tlima koja su pod utjecajem ljudske djelatnosti. Mnogi autori su se složili da konzervacijska obrada djeluje povoljnije na kvalitetu humusnih tvari u odnosu na konvencionalnu obradu tla. Plodored ima pozitivan utjecaj na kvalitetu humusa, posebno ako uključuje leguminoze. Primjena mineralnih gnojiva može negativno utjecati na proces humifikacije, dok organska gnojidba povoljno utječe na količinu i kvalitetu humusa. Dokazano je da pesticidi narušavaju biokemijsku ravnotežu u tlu, umanjuju aktivnost mikroorganizama koji su značajni u procesima humifikacije, a imaju i sposobnost vezanja na humusne tvari. Odvodnja rezultira poboljšanim vodozračnim odnosima u tlu i većom kvalitetom humusa. Utjecaj navodnjavanja na sastav humusa u najvećoj mjeri ovisi o vrsti i kvaliteti vode koja se koristi u svrhu navodnjavanja.
Keywordssoil tillage fertilization crop rotation hydroamelioration humus quality
Parallel title (English)The impact of agricultural production on the composition of humus
Committee MembersAleksandra Bensa (committee chairperson)
Željka Zgorelec (committee member)
Danijela Jungić (committee member)
GranterSveučilište u Zagrebu
Agronomski fakultet
Lower level organizational unitsOpća proizvodnja bilja
PlaceZagreb
StateCroatia
Scientific field, discipline, subdisciplineBIOTECHNICAL SCIENCES
Agronomy
Study programme typeuniversity
Study levelgraduate
Study programmeAgroecology
Academic title abbreviationmag. ing. agr.
Genremaster's thesis
Language Croatian
Defense date2016-09-26
Parallel abstract (English)
Humus is an integral part of the organic matter of the soil and its composition depends on the original organic matter, the conditions of its transformation, microbial activity and soil properties. Agricultural production changes the original properties of the soil and consequently the composition of humus. The aim of this paper is based on the existing literature to give the perception of the impact of different agricultural measures (tillage, crop rotation, fertilization, pesticides, water regulation) on the composition of humus in anthropogenic soils, or soils that are influenced by human activities. Many authors have agreed that conservation soil tillage acts favorable to the quality of humic substances compared to conventional tillage. Crop rotation has a positive impact on the quality of humus, ecpecially including legumes. The application of mineral fertilizers can negatively affect the process of humification, while organic fertilizers have beneficial effect on humus quantity and quality. It has been proven that pesticides disrupt the balance in the soil, reduces the activity of microorganisms that are important in the process of humification, and also have the ability to bind to humic substances. The drainage has resulted with an improved air-water conditions in soil and higher humus quality. The impact of irrigation on the composition of humus largely depends on the type and quality of water used for irrigation.
Parallel keywords (Croatian)obrada tla gnojidba plodored hidromelioracije kvaliteta humusa
Resource typetext
Access conditionAccess restricted to students and staff of home institution
Terms of usehttp://rightsstatements.org/vocab/InC/1.0/
URN:NBNhttps://urn.nsk.hr/urn:nbn:hr:204:467693
CommitterValentina Bezek