The grain yield and quality of oat cultivars | Auzu šķirņu graudu 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 oat cultivars were carried out at the Institute of Agricultural Resources and Economics in three places – Stende Research Centre (SRC), Priekuli Research Centre (PRC), Latgale Agricultural Research Centre (LARC) in 2018 and 2019. Field experiment was carried out by using integrated growing technology. Two amount levels of fertilizer application were calculated depending on the desirable yield (5 t ha-1 – 7 t haE−1 and 4 t ha-1 – 6 t ha E−1 except in LARC in 2018). Two growing technologies – N1 and N2 (factor A) and four different cultivars (factor B) in four replications were used. The seed rate was 500 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, oat and barley cultivars in different regions of Latvia". The purpose the research was to carry out field trials to compare grain yield and the quality of two new Latvian and two more popular oat cultivars using two growing technologies 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. Oat grain yields were high (7.50 t haE−1 – 10.02 t haE−1 ) in SRC and LARC. Increased fertilizer applications provided significantly higher yields in two field trials, except in PRC. Oat grain protein content was high (9.7 % – 13.5 %) in both years. A large fertilizer level ensured a significant increase of protein content for individual varieties in both years.
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