diplomsko delo
Nina Bogataj (Author), Darja Kocjan Ačko (Mentor), Marko Flajšman (Co-mentor)

Abstract

Soja (Glycine max L. Merrill) je gospodarsko najpomembnejša zrnata stročnica. Inokulacija semena soje je agrotehnični ukrep, kjer gre za postopek nanosa bakterijskega pripravka, s katerim želimo izboljšati določene lastnosti pridelka semena. Gnojenje z dušikom je pri soji kompleksno zaradi njene simbioze z nitrifikacijskimi bakterijami. Zeolit je kamnina vulkanskega izvora in je pogosto uporabljena v kmetijstvu zaradi sposobnosti absorpcije hranilnih snovi, ki jih nato počasi sprošča za potrebe rastline. V poljskem poskusu s sojo sorte 'ES Mentor', ki je potekal na eksperimentalnem polju Srednje kmetijske šole Grm v Novem mestu v letu 2018, smo preučevali vpliv inokulacije semena in uporabe zeolita in/ali mineralnega dušika na morfološke lastnosti rastlin, pridelek zrnja in nekatere dejavnike pridelka. Ugotovili smo, da je bila uporaba inokuliranega semena nujna za oblikovanje nodulov na koreninah soje, saj se pri ne-inokuliranem semenu noduli niso tvorili. Inokulacija je ugodno vplivala tudi na večino merjenih morfoloških lastnosti, na katere je imela tudi uporaba mineralnega dušika največji pozitivni vpliv. Pridelek semena soje je bil pri uporabi inokuliranega semena 4.722 kg/ha, kar je za 20,2 % več kot pri uporabi ne-inokuliranega semena. Inokulacija je povečala tudi absolutno maso, in sicer za 11,7 %. Glede na gnojenje smo največje pridelke ugotovili pri uporabi zeolita, in sicer pri obravnavanju, kjer smo ob setvi dodali 600 kg zeolita/ha v setveni kanal (4.382 kg/ha) in pri obravnavanju, kjer smo pred setvijo po površini posuli 5.000 kg zeolita/ha. Obravnavanja z uporabo mineralnega dušika in kontrola (brez gnojenja) so dala za 0,6 do 3,4 % manjši pridelek.

Keywords

navadna soja;Glycine max;zeolit;inokulacija;noduli;stroki;zrna;pridelek;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL BF - Biotechnical Faculty
Publisher: [N. Bogataj]
UDC: 633.34:631.82:549.67:631.847:631.559(043.2)
COBISS: 9302137 Link will open in a new window
Views: 953
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Other data

Secondary language: English
Secondary title: Agronomic performance of soybean (Glycine max L. Merrill) in a field experiment using zeolite and bacterial seed inoculation
Secondary abstract: Soybean (Glycine max L. Merrill) is the most important legume used for industrial purposes. The soybean seed inoculation is an agricultural measure that involves the application of a bacterial formulation that will be used to improve certain qualities of the crop seed. Nitrogen fertilisation in soybean is a complex procedure because of the symbiosis of soybean with the nitrifying bacteria. Zeolite is a rock of volcanic origin and is often used in agriculture for its ability to absorb nutrients, which are later slowly emitted for the needs of the plant. In a field experiment on soybean (variety ES Mentor), which was carried out in the experimental field of the Secondary School for Agriculture and Biotechnics in 2018, we analysed how the inoculation of seeds and the use of zeolite and/or mineral nitrogen affect the morphology of the plant, grain production and other crop factors. Our results show that the use of inoculated seed was imminent for the formation of nodules on soybean roots since the nodules were not forming in non-inoculated seeds. The inoculations also had a beneficial effect on the majority of the measured morphology; furthermore, mineral nitrogen also had the greatest positive effect on the morphology. Soybean seed production reached 4,722 kg/ha when using inoculated soybean seeds, which is 20.2% more than when non-inoculated seeds were used. What is more, the inoculation increased the absolute mass by 11.7%. In regard to the fertilization used, the highest yields were observed in the use of zeolite, namely where 600 kg zeolite/ha was added to the seedbed during the sowing process (4,382 kg/ha) and where 5,000 kg zeolite/ha was added to the seedbed. The use of mineral nitrogen and the control sample (no fertilization) resulted in 0.6 to 3.4% smaller yield.
Secondary keywords: soybean;zeolite;inoculation;nodules;pods;grain;yield;
Type (COBISS): Bachelor thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Biotehniška fak., Oddelek za agronomijo
Pages: IX, 39 f.
ID: 11224200