| Abstract | Cilj ovog pokusa i istraživanja je bio opisati sjetvu postrne soje u udvojene redove (Twin Row), mogućnost i uspješnost ispitivane tehnologije sjetve te kretanje prinosa i komparacija sa sjetvom postrne soje u jednostruke redove sa međurednom razmakom 50 cm koja je također provedena u istraživanju. Pokus je postavljen nakon žetve ječma, dok je priprema tla obavljena u dva dana te je time sačuvan dio vlage od evaporacije. Od završetka obrade tla do sjetve je prošlo pet dana, te je sjetva obavljena 1. i 2. srpnja 2020.godine sa sortom Flavia (Probstdorfer Saatzucht) 00 grupe zrenja. Sjeme je iz treće reprodukcije, nije provedena inokulacija te je iz vlastite proizvodnje. Sjetva je provedena na dubinu 6 cm kako bi kako bi se ostvario kontakt sjemena sa preostalom vlagom u tlu dok je površina parcela 5 m2. Gustoća sjetve je podijeljena na tri varijante: treća varijanta 59 biljaka/m2, druga varijanta 64 biljaka/m2 i prva varijanta 69 biljaka/m2. U početku nicanja u tehnologiji sjetve u udvojene redova (Twin Row) uočeno je izraženo neujednačeno nicanje soje iz razloga prilično bliskih sjetvenih ulagača koji su mikrozonama nešto krupnijih strukturnih agregata prilično rastresli ionako isušeno tlo. U pokusu je uočena sporadična pojava štetnika iz porodice Nimphalidae- šarenjaci, točnije štričkovog šarenjaka (Vanessa cardui L.). te štetnici iz porodice Pentatomidae, odnosno zelene stjenice (Nezara viridula L.), čiji štetan utjecaj bi bio izrazito štetan po prinos bez pravodobne intervencije prvenstveno protiv štričkovog šarenjaka (Vanessa cardui L.). Rezultati u sjetvi u udvojene redove su: 3. varijanta s prinosom 674.23 g, druga varijanta s prinosom 683.91 g i prva varijanta 714.08 g. Rezultati pokusa u sjetvi u pojedinačne redova sa međurednim razmakom su: 3. varijanta s prinosom 1116.98 g, druga varijanta s prinosom 1391.61 g, i prva varijanta 983.66 g. Razlika uspoređujući prinos podvarijanti s jednakom gustoćom u sjetvi u dvije različite tehnologije u podvarijanti 1 iznosi 37.75 % u korist sjetve na međurednom razmaku od 50 cm. Razlika uspoređujući podvarijantu 2 iznose 103.48 % odnosno dvostruko je viši prinos u podvarijanti 2 u sjetvi na međurednom razmaku od 50 cm. Razlika uspoređujući podvarijantu 3 u dvije aprobirane tehnologije sjetve u pokusu ukazuju na 68.11 % viši prinos u sjetvi na međurednom razmaku od 50 cm u odnosu na sjetvu u udvojene redove (Twin Row). |
| Abstract (english) | The aim of this experiment and research is to describe the sowing of soybeans in a double row (Twin Row), the possibility and success of a tested sowing technology, the movement of yields and comparisons with the sowing of single-row soybeans with a row spacing of 50 cm, also conducted in the study. The experiment was set up after the barley harvest, while soil preparation was done within two days and part of the moisture was saved from evaporation. Five days passed from the completion of soil tillage to sowing. The sowing was performed on July 1 and 2, 2020 with the Flavia variety (Probstdorfer Saatzucht), which belongs to the ripening group 00. The seed came from the third reproduction, no inoculation was performed, and it is own produced. The sowing was carried out to a depth of 6 cm in order to achieve contact of the seeds with the remaining moisture in the soil, whereby the parcel size is 5m2. The sowing density was divided into three variants: the third variant of 59 plants/m2, the second variant of 64 plants/m2, and the first variant of 69 plants/m2. At the beginning of germination in the Twin Row technology, an articulate and uneven soybean germination had been observed. This occurred due to fairly close sowing investors, who scattered the already drained soil with microzones of slightly larger structural aggregates.
In the experiment, a sporadic appearance of pests from the family Nimphalidae, more precisely, the Painted Lady (Vanessa cardui L.) has been noticed, as well as pests from the family Pentatomidae, i.e. the southern green stink bug (Nezara viridula L.) Their effect would be extremely harmful to the yield without intervention in a timely manner, primarily against the Painted Lady (Vanessa cardui L.). The results of sowing in twin rows are following: the third variant with a yield of 674.23 g, the second variant with a yield of 683.91 g, and the first variant with a yield of 714.08 g. The results of the experiments with sowing in individual rows with row spacing are following: the third variant with a yield of 1116.98 g, the second variant with a yield of 1391.61 g, and the first variant with a yield of 983.66 g. When comparing the yield of subvariants with the same sowing density in two different technologies, in subvariant one (1) the difference equals 37.75 % in favor of sowing at row spacing of 50cm. In subvariant two (2), the difference between the two sowing technologies equals 103.48 %, i.e. the yield in subvariant two (2) in sowing at a row spacing of 50 cm is twice as high. When it comes to subvariant three (3), the difference between the two applied sowing technologies used in the experiment indicates that there is a 68.11 % higher yield in sowing at row spacing of 50 cm in comparison to sowing in double, i.e. twin rows. |
