Influence of irrigation, nitrogen fertilization and genotype on the yield and quality of soybean (Glycine max (L.) Merr.)

Tijekom trogodišnjeg istraživanja (2013.-2015.) koje je provedeno na pokušalištu Poljoprivrednog Instituta Osijek istraživan je utjecaj navodnjavanja, gnojidbe dušikom i genotipa na prinos i kakvoću zrna soje (Glycine max (L.) Merr.). Pokus je postavljen po split split plot metodi, u tri ponavljanja, gdje je glavni čimbenik bio tretman navodnjavanjem (A1 – kontrola, A2 – racionalno navodnjavanje, A3 – bogato navodnjavanje), podčimbenik - gnojidba dušikom (B1 – kontrola, bez gnojidbe dušikom; B2 – gnojidba sa 100 kg N ha-1 i B3 – gnojidba s 200 kg N ha-1) i pod podčimbenik - sorta (Lucija, Vita, Ika i Tena). Analizom varijance utvrđen je značajan utjecaj navodnjavanja na visinu prinosa, masu 1000 zrna i randman zrna kroz sve godine istraživanja, a na sadržaj bjelančevina i ulja u 2015. odnosno 2013. godini. Na masu 1000 zrna, hektolitarsku masu, sadržaj bjelančevina i ulja u 2013. godini i energiju klijanja u 2015. godini, gnojidba dušikom je imala značajan utjecaj, kao i na visinu prinosa u svim istraživanim godinama. Utjecaj genotipa je bio značajan za visinu prinosa, sadržaj vode u zrnu soje, masu 1000 zrna i randman zrna u svim godinama. Sadržaj bjelančevina i ulja je bio pod značajnim utjecajem genotipa u 2013. i 2014., odnosno u 2014. i 2015. godini. Energija klijanja i klijavost su varirale pod utjecajem genotipa u 2014. i 2015. godini istraživanja. Tijekom istraživanja su utvrđene brojne korelacije između fizikalnih i kemijskih svojstava zrna i visine prinosa. U 2013. godini prinos je slabo korelirao s hektolitarskom masom. Jake korelacije negativnog smjera utvrđene su između sadržaja ulja i prinosa zrna soje, hektolitarske mase, mase 1000 zrna i sadržaja bjelančevina. U 2014. godini utvrđene su jake korelacije pozitivnog smjera mase 1000 zrna s kemijskim svojstvima zrna soje, kao i slaba korelacija negativnog smjera između hektolitarske mase i sadržaja ulja. U 2015. godini prinos je pozitivno korelirao s masom 1000 zrna i sadržajem bjelančevina, a negativno sa sadržajem ulja. Kemijska svojstva zrna su u 2015. godini imali vrlo jaku korelaciju negativnog smjera.During three-year research period (2013-2015) carried out on the experiment fields of the Agricultural Institute of Osijek the effects of irrigation, nitrogen fertilization and genotype on the yield and quality of soybean (Glycine max (L.) Merr.) were investigated. The experiment was set up by split- split--plot design in three repetitions with the irrigation treatment as a main factor (A1 – control, A2 – rational irrigation, A3 – abundant irrigation), nitrogen fertilization was the sub-factor (B1 – control, without nitrogen fertilization; B2 – fertilization with 100 kg N ha-1 and B3 – fertilization with 200 kg N ha-1) and the second sub-factor was the soybean variety (Lucija, Vita, Ika and Tena). Analysis of variance confirmed the significant influence of irrigation of the yield, mass of 1000 grains and soybean seed production output in all research years, as well as on the content of protein and oil in 2015 and 2013, respectively. Nitrogen fertilization had influence on the mass of 1000 grains, hectoliter mass, content of protein and oil in 2013, and on germination energy in 2015, as well as on the yield in all research years. The influence of genotype had significant effect on the yield, content of water in soybean grain, mass of 1000 grains and randman of soybean seed in all research years. The genotype has significantly influenced the protein content in 2013 and 2014 and the oil content in 2014 and 2015. Germination energy and germination varied under the influence of genotype in 2014 and 2015. During the research numerous correlations determined between physical and chemical properties of grain and yield. In 2013, the yield was in poor correlation with the hectoliter mass. Strong correlations of negative direction were determined between the oil content and yield of soybean, hectoliter mass, mass of 1000 grains and protein content. In 2014, strong correlations of positive direction were determined between the mass of 1000 grains and the chemical properties of soybean grain, as well as weak correlation of negative direction between the hectoliter mass and the oil content. In 2015, the soybean yield was in positive correlation with the mass of 1000 grains and the protein content, and in negative correlation with the oil content. In 2015, chemical properties of grain had a very strong correlation of negative direction

ANALIZA RGB I MULTISPEKTRALNE KAMERE NA BESPILOTNOME ZRAKOPLOVU ZA KLASIFIKACIJU KUKURUZA STROJNIM UČENJEM

This study investigated a crop and soil classification applying the Random Forest machine learning algorithm based on the red-green-blue (RGB) and multispectral sensor imaging deploying an unmanned aerial vehicle (UAV). The study area covered two 10 x 10 m subsets of a maize-sown agricultural parcel near Koška. The highest overall accuracy was obtained in the combination of the red edge (RE), near-infrared (NIR), and normalized difference vegetation index (NDVI) in both subsets, with a 99.8% and 91.8% overall accuracy, respectively. The conducted analysis proved that the RGB camera obtained sufficient accuracy and was an acceptable solution to the soil and vegetation classification. Additionally, a multispectral camera and spectral analysis allowed for a more detailed analysis, primarily of the spectrally similar areas. Thus, this procedure represents a basis for both the crop density calculation and weed detection while deploying an unmanned aerial vehicle. To ensure crop classification effectiveness in practical application, it is necessary to further integrate the weed classes in the current vegetation class and separate them into crop and weed classes.U ovoj studiji istražena je klasifikacija usjeva i tla korištenjem algoritma strojnoga učenja Random Forest, temeljenoga na crveno-zeleno-plavoj (RGB) i multispektralnoj kameri integriranoj na bespilotnome zrakoplovu. Područje istraživanja obuhvaćalo je dva podskupa poljoprivredne čestice kukuruza dimenzija 10 x 10 m u blizini Koške. Najveća ukupna točnost klasifikacije postignuta je u kombinaciji rubnoga crvenog (RE), bliskoga infracrvenog (NIR) kanala i indeksa normalizirane vegetacijske razlike (NDVI) u oba podskupa, s ukupnom točnošću od 99,8 %, odnosno 91,8 %. Provedena analiza pokazala je da je RGB kamera postigla dovoljnu točnost i da je prihvatljivo rješenje za klasifikaciju tla i vegetacije. Međutim, multispektralna kamera i spektralna analiza omogućile su detaljniju analizu, prvenstveno za spektralno slična područja. Ovaj je postupak temelj i za izračun gustoće usjeva i za otkrivanje korova s pomoću bespilotnih zrakoplova. Kako bi se osigurala učinkovitost klasifikacije usjeva u praktičnoj primjeni, potrebno je dodatno uključiti klase korova u trenutačnu klasu vegetacije i podijeliti ih na klase usjeva i korova

INFLUENCE OF CULTIVAR, SEED INOCULATION AND IRRIGATION ON AGRONOMIC PROPERTIES OF FIELD PEA IN EASTERN CROATIA

Provedeno je preliminarno istraživanje na dvije lokacije istočne Hrvatske s ciljem utvrđivanja utjecaja kultivara, inokulacije sjemena i navodnjavanja na poljsko nicanje, broj mahuna po biljci, broj zrna po mahuni, masu 1000 zrna, prinos zrna i sadržaj bjelančevina u zrnu. Značajnost učinaka ispitivanih faktora na istraživana svojstva bila je različita. Različita je bila i značajnost interakcija ispitivanih faktora. Podaci pokazuju da postoji mogućnost povećanja prinosa i kvalitete krmnog graška primjenom adekvatne agrotehnike, a prije svega inokulacije sjemena i navodnjavanja.Preliminary field research was conducted at two locations of East Croatia in order to determine the impact of cultivar, seed inoculation and irrigation on field emergence, number of pods per plant, number of seeds per pod, 1000 grain mass, grain yield and seed protein content. Significance of tested factor effects on investigated traits varied. Differences in significance of tested interactions were also found. Results indicate that there is a possibility that the yield and quality of field pea may increase by applying appropriate agrotechnical measures and above all seed inoculation and irrigation

EKOLOŠKI UZGOJ PIRA (Triticum spelta L.) I EKONOMSKI REZULTATI

Spelt is an excellent choice for organic farming due to better enduring worse agroecological conditions than wheat. This research on the the family farm "Klica" in Ernestinovo in the season 2014/2015 is an extension of the research of this culture (the cultivar "Frankenkorn") of the previous season in the agroecological conditions of eastern Slavonia on the same family farm. The average grain yield was 3.71 t ha-1, which is 1.08 t ha-1 more than the previous season. Realized revenues of HRK 10,419.92 ha-1 are also higher than in the previous season.Pir je izvrstan izbor za ekološki uzgoj, jer bolje podnosi lošije agroekološke uvjete od pšenice. Ovo istraživanje na površinama obiteljskog gospodarstva „Klica“ iz Ernestinova u sezoni 2014./2015. nastavak je istraživanja ove kulture (kultivar „Frankenkorn“) prethodne sezone u agroekološkim uvjetima u dijelu istočne Slavonije na površinama istog obiteljskog gospodarstva. Prosječni prinos zrna iznosio je 3,71 t/ha, što je za 1,08 t/ha više nego prethodne sezone. Ostvareni prihodi u iznosu od 10.419,92 kn/ha također su veći nego prethodne sezone

ECONOMICS OF CABBAGE CULTIVATION ON THE FAMILY FARM

Istraživanja o nekim tehnološkim aspektima i ekonomici (ekonomskim pokazateljima proizvodnje) obavljena su tijekom 2012. godine na površinama obiteljskog poljoprivrednog gospodarstva (OPG) u Punitovcima u Osječko-baranjskoj županiji. Na parceli od 1 ha praćeni su i evidentirani neki agrotehnički zahvati, organizacijski aspekti i ekonomika proizvodnje kupusa. Uzgajani je kasni hibrid Bravo F1. Sjetva kupusa obavljena je sredinom svibnja u tunelima prekrivenim plastičnom folijom. Temeljem prikupljenih podataka izrađena je tehnološka karta a izračunate su i norme. Provedena je ekonomska analiza proizvodnje kupusa koja je pokazala dobar financijski rezultat. Troškovi proizvodnje od 47.812,26 kn ha-1 uz njezinu vrijednost od 63.000,00 kn ha-1 doveli su do dobiti od 15.187,74 kn ha-1. To je za uvjete proizvodnje na otvorenom i provedenim ulaganjima isplativa proizvodnja.Studies on some technological aspects and economics (economic indicators of production) were carried out during 2012 on a family farm (OPG) in Punitovci, the Osijek - Baranja County. Some agrotechnical practices, organizational aspects and economics of cabbage production were monitored and recorded on the plot of 1 ha. Cabbage late hybrid Bravo F1 was cultivated. Sowing cabbage was conducted in mid-May in tunnels covered with plastic wrap. Based on the collected data the technological map was made and the norm calculated. Economic analysis of cabbage production was conducted and it showed good financial results. Production costs of 47.812,26 HRK per ha-1 with the production value of 63.000.00 HRK per ha-1 led to a profit of 15.187,74 HRK per ha-1. That is a profitable production for the production conditions on the open and the investments

TECHNOLOGICAL AND TECHNICAL FACTORS AND ECONOMIC RESULTS OF SEED CORN PRODUCTION

Istraživanja su provedena tijekom 2009. godine na površinama Poljoprivrednog instituta Osijek. Na parceli 10,80 ha istraženi su tehnološki činitelji i ekonomski rezultati, praćeni su i evidentirani agrotehnički zahvati i organizacija uzgoja sjemenskog kukuruza. Na temelju izračunatih normi i izrađene tehnološke karte ukupne proizvodnje, utvrđen je utrošak od 16 sati rada strojeva i 64 sati rada ljudi po hektaru. Ukupni troškovi iznosili su 13.234,80 kn ha-1, a vrijednost ostvarene proizvodnje (prinos od 2,72 t ha-1) uz poticaj od 4.800,00 kn ha-1 iznosila je 21.139,80 kn ha-1. Proizvodnost rada iznosila je 42,55 kg zrna po satu ljudi, te utrošak od 23,70 sati rada ljudi po toni zrna. Ostvarena je dobit u iznosu od 7.905,00 kn ha-1. Koeficijent ekonomičnosti proizvodnje iznosi 1,59 iz čega je vidljivo da je proizvodnja sjemenskog kukuruza bila ekonomična, a na 100 kn uloženih u proizvodnju ostvareno je 30,70 kuna dobiti.The research was carried out during 2009 on the arable land owned by the Agricultural Institute in Osijek. Technological factors and economic results, agrotechnical procedures and organization of seed corn production were monitored on the total area of 10.80 ha. Based on the calculated norms and technology plans of overall production, it was determined that there were 16 hours of machine work and 64 hours of labor invested per one hectare. Total costs were 13,234.80 HRK per ha-1, and the production value (as of the yield of 2.72 t per ha-1) with state subsidies of 4,800.00 HRK per ha-1 amounted to 21,139.80 HRK per ha-1. Working productivity was 42.55 kg of grain per one hour of labour, and 23.70 hours of labour were invested per one ton of grain. Profit was 7,905.00 HRK per ha-1. Coefficient of production efficiency was 1.59, which indicated that production of seed corn was cost-effective, and a profit of 30.70 HRK was made per 100.00 HRK invested in production

IMPORTANT TECHNOLOGICAL FACTORS AND ECONOMIC RESULTS IN RAPESEED PRODUCTION

Istraživanja o primijenjenoj tehnologiji i ekonomskim učincima pri uzgoju uljane repice provedena su tijekom 2007./08. godine na proizvodnim površinama tvrtke Feliks d.o.o. iz Vinkovaca na području Istočne Slavonije. Ekonomski rezultati jasno pokazuju stabilnu i rentabilnu proizvodnju ove važne uljarice. Pri uzgoju uljane repice na površini od 11 ha ostvaren je prinos od 3,73 t ha-1 sjemena uz prosječan sadržaj ulja od 47,94%. Ukupni troškovi proizvodnje uljene repice iznose 8.258,80 kn ha-1. Od toga je 1.774,50 kn ha-1 ili 21,5% utrošeno za sjeme i mineralna gnojiva. Za rad strojeva utrošeno je 2.550,00 kn ha-1 ili 30,9% od ukupnih troškova. Prinosom od 3,73 t ha-1 uz cijenu od 3,5 kn kg-1 ostvarena je vrijednost proizvodnje od 13.055,00 kn ha-1. Ista je uvećana za poticaj u iznosu od 2.250,00 kn ha-1, te je ukupna vrijednost proizvodnje iznosila 15.305,00 kn ha-1. Nakon podmirenja ukupnih troškova proizvodnje ostvarena je dobit od 7.046,20 kn ha-1. Proizvodnost rada izračunata je na temelju utroška 12,5 sati ha-1 i prinosa od 3,73 t ha-1 te iznosi 298,4 kg h-1. Na temelju koeficijenta ekonomičnosti proizvodnje od 1,85 i stope rentabilnosti, utvrđeno je da je proizvodnja uljane repice ekonomična, jer se na 100 kn uloženih pri proizvodnji ostvaruje dobit od 85,30 kuna.The research on applied technology and analysis of economic effects of rapeseed production were carried out during the years 2007 and 2008 on the arable land in Eastern Slavonia owned by the company Felix Ltd. Vinkovci Economic results clearly indicated stable and profitable production of this important high grain yield crop. Production of rapeseed in the area of 11 ha resulted in crop yield of 3.73 t ha-1, with average oil content of 47.94%. Total costs of production were 8.258.80 HRK ha-1, of which 1.774,50 HRK ha-1 i.e. 21,5% seed, and mineral fertilizers and 2.550,00 HRK ha-1 or 30.9% referred to machine work. With a price of 3,5 HRK kg-1 and yield of 3,73 t ha-1, value of production was 13.055.00 HRK ha-1. As state subsidies were 2.250,00 HRK ha-1, total value of rapeseed production amounted to 15.305,00 HRK ha-1. After deducting all production costs, final profit was 7.046,20 HRK ha-1. Working productivity was calculated on the basis of 12.5 working hours ha-1 and the yield of 3,73 t ha-1, thus being 298.4 kg h-1. Based on the production cost effectiveness of 1,85 and rentability rate, it was determined that production of rapeseed was cost effective, as the profit gained on 100.00 HRK invested in the production process was 85.30 HRK

Influence of irrigation, nitrogen fertilization and genotype on the yield and quality of soybean (Glycine max (L.) Merr.)

Tijekom trogodišnjeg istraživanja (2013.-2015.) koje je provedeno na pokušalištu Poljoprivrednog Instituta Osijek istraživan je utjecaj navodnjavanja, gnojidbe dušikom i genotipa na prinos i kakvoću zrna soje (Glycine max (L.) Merr.). Pokus je postavljen po split split plot metodi, u tri ponavljanja, gdje je glavni čimbenik bio tretman navodnjavanjem (A1 – kontrola, A2 – racionalno navodnjavanje, A3 – bogato navodnjavanje), podčimbenik - gnojidba dušikom (B1 – kontrola, bez gnojidbe dušikom; B2 – gnojidba sa 100 kg N ha-1 i B3 – gnojidba s 200 kg N ha-1) i pod podčimbenik - sorta (Lucija, Vita, Ika i Tena). Analizom varijance utvrđen je značajan utjecaj navodnjavanja na visinu prinosa, masu 1000 zrna i randman zrna kroz sve godine istraživanja, a na sadržaj bjelančevina i ulja u 2015. odnosno 2013. godini. Na masu 1000 zrna, hektolitarsku masu, sadržaj bjelančevina i ulja u 2013. godini i energiju klijanja u 2015. godini, gnojidba dušikom je imala značajan utjecaj, kao i na visinu prinosa u svim istraživanim godinama. Utjecaj genotipa je bio značajan za visinu prinosa, sadržaj vode u zrnu soje, masu 1000 zrna i randman zrna u svim godinama. Sadržaj bjelančevina i ulja je bio pod značajnim utjecajem genotipa u 2013. i 2014., odnosno u 2014. i 2015. godini. Energija klijanja i klijavost su varirale pod utjecajem genotipa u 2014. i 2015. godini istraživanja. Tijekom istraživanja su utvrđene brojne korelacije između fizikalnih i kemijskih svojstava zrna i visine prinosa. U 2013. godini prinos je slabo korelirao s hektolitarskom masom. Jake korelacije negativnog smjera utvrđene su između sadržaja ulja i prinosa zrna soje, hektolitarske mase, mase 1000 zrna i sadržaja bjelančevina. U 2014. godini utvrđene su jake korelacije pozitivnog smjera mase 1000 zrna s kemijskim svojstvima zrna soje, kao i slaba korelacija negativnog smjera između hektolitarske mase i sadržaja ulja. U 2015. godini prinos je pozitivno korelirao s masom 1000 zrna i sadržajem bjelančevina, a negativno sa sadržajem ulja. Kemijska svojstva zrna su u 2015. godini imali vrlo jaku korelaciju negativnog smjera.During three-year research period (2013-2015) carried out on the experiment fields of the Agricultural Institute of Osijek the effects of irrigation, nitrogen fertilization and genotype on the yield and quality of soybean (Glycine max (L.) Merr.) were investigated. The experiment was set up by split- split--plot design in three repetitions with the irrigation treatment as a main factor (A1 – control, A2 – rational irrigation, A3 – abundant irrigation), nitrogen fertilization was the sub-factor (B1 – control, without nitrogen fertilization; B2 – fertilization with 100 kg N ha-1 and B3 – fertilization with 200 kg N ha-1) and the second sub-factor was the soybean variety (Lucija, Vita, Ika and Tena). Analysis of variance confirmed the significant influence of irrigation of the yield, mass of 1000 grains and soybean seed production output in all research years, as well as on the content of protein and oil in 2015 and 2013, respectively. Nitrogen fertilization had influence on the mass of 1000 grains, hectoliter mass, content of protein and oil in 2013, and on germination energy in 2015, as well as on the yield in all research years. The influence of genotype had significant effect on the yield, content of water in soybean grain, mass of 1000 grains and randman of soybean seed in all research years. The genotype has significantly influenced the protein content in 2013 and 2014 and the oil content in 2014 and 2015. Germination energy and germination varied under the influence of genotype in 2014 and 2015. During the research numerous correlations determined between physical and chemical properties of grain and yield. In 2013, the yield was in poor correlation with the hectoliter mass. Strong correlations of negative direction were determined between the oil content and yield of soybean, hectoliter mass, mass of 1000 grains and protein content. In 2014, strong correlations of positive direction were determined between the mass of 1000 grains and the chemical properties of soybean grain, as well as weak correlation of negative direction between the hectoliter mass and the oil content. In 2015, the soybean yield was in positive correlation with the mass of 1000 grains and the protein content, and in negative correlation with the oil content. In 2015, chemical properties of grain had a very strong correlation of negative direction

Influence of irrigation, nitrogen fertilization and genotype on the yield and quality of soybean (Glycine max (L.) Merr.)

Tijekom trogodišnjeg istraživanja (2013.-2015.) koje je provedeno na pokušalištu Poljoprivrednog Instituta Osijek istraživan je utjecaj navodnjavanja, gnojidbe dušikom i genotipa na prinos i kakvoću zrna soje (Glycine max (L.) Merr.). Pokus je postavljen po split split plot metodi, u tri ponavljanja, gdje je glavni čimbenik bio tretman navodnjavanjem (A1 – kontrola, A2 – racionalno navodnjavanje, A3 – bogato navodnjavanje), podčimbenik - gnojidba dušikom (B1 – kontrola, bez gnojidbe dušikom; B2 – gnojidba sa 100 kg N ha-1 i B3 – gnojidba s 200 kg N ha-1) i pod podčimbenik - sorta (Lucija, Vita, Ika i Tena). Analizom varijance utvrđen je značajan utjecaj navodnjavanja na visinu prinosa, masu 1000 zrna i randman zrna kroz sve godine istraživanja, a na sadržaj bjelančevina i ulja u 2015. odnosno 2013. godini. Na masu 1000 zrna, hektolitarsku masu, sadržaj bjelančevina i ulja u 2013. godini i energiju klijanja u 2015. godini, gnojidba dušikom je imala značajan utjecaj, kao i na visinu prinosa u svim istraživanim godinama. Utjecaj genotipa je bio značajan za visinu prinosa, sadržaj vode u zrnu soje, masu 1000 zrna i randman zrna u svim godinama. Sadržaj bjelančevina i ulja je bio pod značajnim utjecajem genotipa u 2013. i 2014., odnosno u 2014. i 2015. godini. Energija klijanja i klijavost su varirale pod utjecajem genotipa u 2014. i 2015. godini istraživanja. Tijekom istraživanja su utvrđene brojne korelacije između fizikalnih i kemijskih svojstava zrna i visine prinosa. U 2013. godini prinos je slabo korelirao s hektolitarskom masom. Jake korelacije negativnog smjera utvrđene su između sadržaja ulja i prinosa zrna soje, hektolitarske mase, mase 1000 zrna i sadržaja bjelančevina. U 2014. godini utvrđene su jake korelacije pozitivnog smjera mase 1000 zrna s kemijskim svojstvima zrna soje, kao i slaba korelacija negativnog smjera između hektolitarske mase i sadržaja ulja. U 2015. godini prinos je pozitivno korelirao s masom 1000 zrna i sadržajem bjelančevina, a negativno sa sadržajem ulja. Kemijska svojstva zrna su u 2015. godini imali vrlo jaku korelaciju negativnog smjera.During three-year research period (2013-2015) carried out on the experiment fields of the Agricultural Institute of Osijek the effects of irrigation, nitrogen fertilization and genotype on the yield and quality of soybean (Glycine max (L.) Merr.) were investigated. The experiment was set up by split- split--plot design in three repetitions with the irrigation treatment as a main factor (A1 – control, A2 – rational irrigation, A3 – abundant irrigation), nitrogen fertilization was the sub-factor (B1 – control, without nitrogen fertilization; B2 – fertilization with 100 kg N ha-1 and B3 – fertilization with 200 kg N ha-1) and the second sub-factor was the soybean variety (Lucija, Vita, Ika and Tena). Analysis of variance confirmed the significant influence of irrigation of the yield, mass of 1000 grains and soybean seed production output in all research years, as well as on the content of protein and oil in 2015 and 2013, respectively. Nitrogen fertilization had influence on the mass of 1000 grains, hectoliter mass, content of protein and oil in 2013, and on germination energy in 2015, as well as on the yield in all research years. The influence of genotype had significant effect on the yield, content of water in soybean grain, mass of 1000 grains and randman of soybean seed in all research years. The genotype has significantly influenced the protein content in 2013 and 2014 and the oil content in 2014 and 2015. Germination energy and germination varied under the influence of genotype in 2014 and 2015. During the research numerous correlations determined between physical and chemical properties of grain and yield. In 2013, the yield was in poor correlation with the hectoliter mass. Strong correlations of negative direction were determined between the oil content and yield of soybean, hectoliter mass, mass of 1000 grains and protein content. In 2014, strong correlations of positive direction were determined between the mass of 1000 grains and the chemical properties of soybean grain, as well as weak correlation of negative direction between the hectoliter mass and the oil content. In 2015, the soybean yield was in positive correlation with the mass of 1000 grains and the protein content, and in negative correlation with the oil content. In 2015, chemical properties of grain had a very strong correlation of negative direction