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.
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Claims 10
Claim · model-written summary
Barley grain yield decrease by 40.0–54.8%.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Organ / stage
- graine0
- Outcome
- grain yielde0
- Direction
- decreasee0
- Value
- 40.0–54.8%e0
- Setting
- barley tillering – heading periode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“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”
Claim · model-written summary
Barley grain protein content increase by 1.4–1.7%.
- Taxon
- barleyHordeum vulgaret0
- Organ / stage
- graine0
- Outcome
- grain protein contente0
- Direction
- increasee0
- Value
- 1.4–1.7%e0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was an increase in the grain protein content by 1.4–1.7%”
t0“SPRING BARLEY”
Claim · model-written summary
Fertilizer changed barley barley yield.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- moderate rates of complete mineral fertilizer (N35P40K85)e0
- Outcome
- barley yielde0
- Direction
- increasee0
- Value
- 13.2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“moderate rates of complete mineral fertilizer (N35P40K85) led to an increase in the barley yield by an average of 13.2%”
Claim · model-written summary
Fertilizer changed barley grain protein content.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- moderate rates of complete mineral fertilizer (N35P40K85)e0
- Outcome
- grain protein contente0
- Direction
- increasee0
- Value
- 0.2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“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%”
Claim · model-written summary
Grain filminess increased by 0.5–0.9%.
- Taxon
- barleyHordeum vulgaret0
- Outcome
- grain filminesse0
- Value
- 0.5–0.9%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain filminess by 0.5–0.9%”
t0“SPRING BARLEY”
Claim · model-written summary
Fertilizer decreased grain filminess by 0.2%.
- Taxon
- barleyHordeum vulgaret0
- Outcome
- grain filminesse0
- Direction
- decreasee0
- Value
- 0.2%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decrease in the grain filminess by 0.2%”
t0“SPRING BARLEY”
Claim · model-written summary
Fertilizer decreased starch content by 0.4–0.6%.
- Taxon
- barleyHordeum vulgaret0
- Outcome
- starch contente0
- Value
- 0.4–0.6%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“starch content by 0.4–0.6%”
t0“SPRING BARLEY”
Claim · model-written summary
Nitrogen fertilizer increased barley grain protein more under minimal tillage.
- Taxon
- barleyHordeum vulgaree0
- Outcome
- protein contente0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“positive effect of nitrogen fertilizers on the increase in protein content in barley grain was higher under minimal tillage”
Claim · model-written summary
Minimal tillage tended to decrease barley yield by 3.9%.
- Taxon
- barleyHordeum vulgaree0
- Outcome
- barley yielde0
- Direction
- decreasee0
- Value
- 3.9%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“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%”
Claim · model-written summary
Protein content tended to decrease by 0.3% without complete fertilizer.
- Taxon
- barleyHordeum vulgaree0
- Outcome
- protein contente0
- Direction
- decreasee0
- Value
- 0.3%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tendency towards a decrease in the protein content in the barley grain – by 0.3% – when no complete mineral fertilizer was used”
The same questions in other papers
fertilization · quality: protein · Hordeum vulgare (barley)Positive and negative results
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- no effect
- negative
- negative
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472 papers in the same direction as this paper · 66 in the opposite direction · 11 reporting no difference from an alternative
- positive
- no effect
- negative
546 papers more in this group
See all 550 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.