Utjecaj poboljšivača tla "Biosulfat plus" na kemijska svojstva tla, prinos i kvalitetu kukuruza

master's thesis

• Title (english): Influence of wastewater sludge "biosulfate plus" on soil chemical properties, yield and quality of maize
• Author: Doria Lasić
• Mentor: Lepomir Čoga (mentor)
• Committee member: Lepomir Čoga (predsjednik povjerenstva)
• Committee member: Željko Jukić (član povjerenstva)
• Committee member: Tomislav Karažija (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Plant Nutrition); Zagreb
• Defense date and country: 2022-09-28, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Cilj istraživanja bio je utvrditi utjecaj poboljšivača tla „Biosulfat plus“ na kemijska svojstva tla, prinos i kvalitetu kukuruza. Pokus je postavljen po slučajnom bloknom rasporedu s osam varijanti u četiri ponavljanja: kontrola (bez gnojidbe), gnojidba mineralnim gnojivima (250 kg N/ha), „Biosulfat plus“ (150, 200 i 250 kg N/ha), kombinacija mineralne gnojidbe i „Biosulfata plus“ u odnosu 1:1 (150, 200 i 250 kg N/ha). Test kultura u pokusu bila je kukuruz, hibrid 0725 Pioneer. U svrhu utvrđivanja učinkovitosti „Biosulfata plus“ uzorci tla su uzeti tri puta tijekom vegetacije iz sloja 0-30 i 30-60 cm dubine (prije gnojidbe u fazi silaže i u berbi kukuruza za zrno), a uzorci biljnog materijala u fazi silaže (cijela biljka) i u berbi (zrno i nadzemni dio biljke). Temeljem dobivenih rezultata može se zaključiti da je primjena poboljšivača „Biosulfat plus“ imala pozitivan utjecaj na prinos zrna i sadržaj proteina u zrnu kukuruza, bez štetnog utjecaja na kemijska svojstva tla i akumulaciju teških metala u tlu i biljnom materijalu.

Abstract (english)

The aim of this research was to assess the effects of using wastewater sludge on the chemical properties of the soil, yield and quality of maize. The experiment was set up according to a random block arrangement with eight variants in four repetitions: control (without fertilization), fertilization with mineral fertilizers (250 kg N/ha), “Biosulfat plus” (150, 200 and 250 kg N/ha), a combination of mineral fertilization and "Biosulfat plus" in a 1:1 ratio (150, 200 and 250 kg N/ha). The test crop in the experiment was maize, hybrid 0725 Pioneer. To determine the effectiveness of "Biosulfat plus", soil samples were taken three times during the growing season from the soil layers 0-30 and 30-60 cm (before fertilizing in the silage phase and in the harvesting of maize for grain) and samples of plant material in the silage phase (whole plant) and in the harvest (grain and shoot). Based on the results, it can be concluded that application of the fertilizer "Biosulfat plus" had a positive effect on yield and protein content in maize grain, without a harmful effect on the chemical properties of the soil and the accumulation of heavy metals in the soil and plant material.

• Keywords: mulj otpadnih voda; poboljšivač tla; kukuruz; proteini; teški metali
• Keywords (english): wastewater sludge; fertilizer; maize; proteins; heavy metals
• Language: croatian
• URN:NBN: urn:nbn:hr:204:250320
• Study programme: Title: Agroecology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka agroekologije (magistar/ magistra inženjer/inženjerka agroekologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2022-10-19 07:44:09