The yield and quality of Latvian barley varieties and more widely grown varieties | Latvijā selekcionēto un plašāk audzēto miežu šķirņu raža un kvalitāte
2020
Malecka, S., Latvia Univ. of Life Sciences and Technologies, Priekuli, Priekuli Parish, Priekuli Municipality (Latvia). Inst. of Agricultural Resources and Economics | Stramkale, V., Latvia Univ. of Life Sciences and Technologies, Priekuli, Priekuli Parish, Priekuli Municipality (Latvia). Inst. of Agricultural Resources and Economics | Vaivode, A., Latvia Univ. of Life Sciences and Technologies, Priekuli, Priekuli Parish, Priekuli Municipality (Latvia). Inst. of Agricultural Resources and Economics | Damskalne, M., Latvia Univ. of Life Sciences and Technologies, Priekuli, Priekuli Parish, Priekuli Municipality (Latvia). Inst. of Agricultural Resources and Economics
Field trials of Latvian cultivars and widely grown barley cultivars were carried out at the Institute of Agricultural Resources and Economics in three places - Stende Research Centre (SPC), Priekuli Research Centre (PPC), Latgale Agricultural Research Centre (LLZC) in 2018 and 2019. The field experiment was carried out by using integrated growing technology. Two amount levels of fertilizer application were calculated depending on desirable yield (5 t haE−1 – 7 t haE−1 and 4 t haE−1 – 6 t haE−1 except in Latgale in 2018). Two fertilizer backgrounds N1 and N2 (factor A) and four different cultivars (factor B) in four replications were used. The seed rate was 400 germinating seeds per 1 square m. The article was prepared for the realization of the demonstration project “The demonstration of integrated growing technology with perspective Latvian wheat, oats and barley cultivars in different regions of Latviaˮ. The aim of the research was to carry out demonstration field trials to compare grain yield and the quality of barley cultivars in 2018 and 2019. Due to dry and hot summer of 2018, the potential of the cultivars was not fully realized. Yields were low and thus the used growing technology was not efficient. However, growing conditions were optimal in 2019. Barley grain yields were high (6.30 t haE−1 – 9.09 t haE−1) in Stende and Latgale. Increased fertilizer applications provided significantly higher yields in all field trials, except for cultivar 'Didzis' in Priekuļi. Barley grain protein content was high (10.8 % – 18.3 %) in both years. A large fertilizer level ensured a significant increase of protein and beta-glucan content in 2018 and the results were equivalent to both backgrounds in 2019.
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