Effect of Tillage Methods and Levels of Mineral Nutrition on Yield and Grain Quality of the “Vladimir” Spring Barley Variety in the Central Region of the Non-Chernozem Zone

Abstract

Providing the brewing industry with locally produced raw materials is important both from an economic point of view and in terms of import substitution. Breeders create brewing barley varieties with a reduced protein content, however, in production they often use universal varieties that combine high yields with an average protein content of 11–12%. For such varieties, it is necessary to develop technological methods for obtaining a crop with specified properties, depending on the purposes of using the products. The quality indicators of barley grain and the efficiency of its production are significantly influenced by mineral fertilizers and the minimization of soil cultivation. In this regard, the authors studied the effect of minimal tillage on the yield and grain quality of spring barley of the Vladimir variety at two levels of mineral nutrition (without fertilizers 26 and with full supply oif mineral fertilizer – N35P40K135) in a two-factor field experiment carried out in 2018–2019 on the medium-loamy light gray forest soil. The experiment helped determine the yield and structure of the crop, the content of protein, starch, and grain hoodness (hull content). It was found that the lack of precipitation during the barley tillering – heading period leads to a decrease in grain yield by 40.0–54.8% as compared with the conditions of increased moisturizing. At the same time, there was an increase in the grain protein content by 1.4–1.7% and the grain filminess by 0.5–0.9%. The use of moderate rates of complete mineral fertilizer (N35P40K85) led to an increase in the barley yield by an average of 13.2% and the grain protein content by an average of 0.2%. On the other hand, it led to a decrease in the grain filminess by 0.2% and starch content by 0.4–0.6%. The positive effect of nitrogen fertilizers on the increase in protein content in barley grain was higher under minimal tillage. Under minimal tillage, regardless of the level of moisture supply and mineral nutrition, there was a tendency towards a decrease in the barley yield by an average of 3.9%, mainly due to a decrease in the density of the productive stalk. There was also a tendency towards a decrease in the protein content in the barley grain – by 0.3% – when no complete mineral fertilizer was used.

Influence of Systematic Mineral Fertilization on the Yield and Quality of Malting Barley Variety 'Ahat'

“…Also, under conditions of sufficient nitrogen supply, phosphorus and potassium fertilization increases grain yield and seed germination. A similar conclusion was reached by Zavyalova & Shishkov (2020) and Filatov et al (2021). At the same time, individual and combined applications of phosphorus and potassium do not affect yield (Laconde et al, 1993) and protein content in wheat (Ershov, 1990), which is confirmed in malting barley by the results obtained.…”

“…Critical phases of crop development with respect to humidity are stalk shooting and ripening. During the stalk shooting period, barley consumes more than 50% of the total water requirement during the growing season (Fedotov et al, 2004;Filatov et al, 2021). The lack of moisture during ripening leads to a lower realization of the Angelova et al / Uluslararası Tarım Araştırmalarında Yenilikçi Yaklaşımlar Dergisi / International Journal of Innovative Approaches in Agricultural Research, 2023, Vol.…”

The effect of increasing doses of mineral fertilizers on productivity and structural indicators of Raphael spring barley new variety

“…Минеральные удобрения оказывают значительное воздействие на почву, в частности, внесение NPK способствует сохранению органического вещества почвы, повышает уровень содержания основных элементов питания, обеспечивает повышение урожайности сельскохозяйственных культур [13,14,15].…”