Abstract
Abstract The aim of this experiment was to determine the variations in some important chemical indicators of annual winter cereal and legume pure and mixed crops for green forage production under the conditions of the fore-mountain regions of the Central Northern Bulgaria (Troyan region). In pure crops the crude protein content had fewer values compared to mixed crops. The cereals accumulated less crude fat in comparison with legumes. In mixed crops the crude fat was from 1.99 to 2.82%, with a relatively lower coefficient of variation in comparison with pure crops. More crude fibre was indicated in winter barley, triticale and winter vetch. All pure crops displayed a low coefficient of variation (from 7.21% to 10.26%). The lowest values of crude fibre were in the mixed crops with winter pea and they had a lower coefficient of variation compared to pure crops. In regard to crude ash content the legumes exceeded the cereals. In the legume pure crops a low coefficient of variation was established, while in cereals it was a medial value. On the whole all mixed crops had a low coefficient of variation. In legumes the calcium content was higher but with a low coefficient of variation than cereals. In mixed crops irrespective of whether it had a cereal or legume component the calcium content in forage varied from 0.530 to 0.870%. In mixtures the calcium variation was mostly with a medial value. The phosphorus content had lower values in forage of pure and mixed crops. The least variation (as a medial value) was observed in winter vetch and winter barley. In mixed crops with winter barley this indicator had a low coefficient of variation. The most favorable proportion between calcium and phosphorus for pure crops was found in cereals (triticale and winter barley) - respectively 2.46 and 2.23 and for mixed crops - in Winter barley+winter pea and Winter barley+winter vetch - from 1.76 to 2.57.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 20
Claim · model-written summary
Pure crops had less crude protein than mixed crops.
Verbatim
e0“In pure crops the crude protein content had fewer values compared to mixed crops.”
Claim · model-written summary
Cereals accumulated less crude fat than legumes.
Verbatim
e0“The cereals accumulated less crude fat in comparison with legumes.”
Claim · model-written summary
Mixed crops had crude fat of 1.99 to 2.82%.
Verbatim
e0“In mixed crops the crude fat was from 1.99 to 2.82%, with a relatively lower coefficient of variation in comparison with pure crops.”
Claim · model-written summary
Mixed crops had a relatively lower coefficient of variation in crude fat than pure crops.
Verbatim
e0“In mixed crops the crude fat was from 1.99 to 2.82%, with a relatively lower coefficient of variation in comparison with pure crops.”
Claim · model-written summary
Winter barley, triticale and winter vetch had more crude fibre.
Verbatim
e0“More crude fibre was indicated in winter barley, triticale and winter vetch.”
Claim · model-written summary
Pure crops had low crude fibre variation of 7.21% to 10.26%.
Verbatim
e0“All pure crops displayed a low coefficient of variation (from 7.21% to 10.26%).”
Claim · model-written summary
Winter pea mixtures had the lowest crude fibre values.
- Taxon
- winter pea
Lathyrus oleraceuse0 - Material
- mixed crops with winter peae0
- Outcome
- crude fibree0
- Direction
- loweste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The lowest values of crude fibre were in the mixed crops with winter pea and they had a lower coefficient of variation compared to pure crops.”
Claim · model-written summary
Winter pea mixtures had lower crude fibre variation than pure crops.
- Taxon
- winter pea
Lathyrus oleraceuse0 - Outcome
- coefficient of variatione0
- Direction
- lowere0
- Comparator
- pure cropse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The lowest values of crude fibre were in the mixed crops with winter pea and they had a lower coefficient of variation compared to pure crops.”
Claim · model-written summary
Legumes exceeded cereals in crude ash content.
Verbatim
e0“In regard to crude ash content the legumes exceeded the cereals.”
Claim · model-written summary
Legume pure crops had low crude ash variation, while cereals had medial variation.
Verbatim
e0“In the legume pure crops a low coefficient of variation was established, while in cereals it was a medial value.”
Claim · model-written summary
Mixed crops had low crude ash variation overall.
Verbatim
e0“On the whole all mixed crops had a low coefficient of variation.”
Claim · model-written summary
Legumes had higher calcium content than cereals, with low variation.
Verbatim
e0“In legumes the calcium content was higher but with a low coefficient of variation than cereals.”
Claim · model-written summary
Mixed-crop forage calcium ranged from 0.530 to 0.870%.
Verbatim
e0“In mixed crops irrespective of whether it had a cereal or legume component the calcium content in forage varied from 0.530 to 0.870%.”
Claim · model-written summary
Calcium variation in mixtures was mostly medial.
Verbatim
e0“In mixtures the calcium variation was mostly with a medial value.”
Claim · model-written summary
Phosphorus content was lower in forage of pure and mixed crops.
Verbatim
e0“The phosphorus content had lower values in forage of pure and mixed crops.”
Claim · model-written summary
Winter vetch and winter barley had the least phosphorus variation.
Verbatim
e0“The least variation (as a medial value) was observed in winter vetch and winter barley.”
Claim · model-written summary
Winter barley mixtures had low phosphorus variation.
- Taxon
- winter barley
Hordeum vulgaree0 - Outcome
- coefficient of variatione0
- Qualifier
- lowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“In mixed crops with winter barley this indicator had a low coefficient of variation.”
Claim · model-written summary
Triticale had a favorable calcium-to-phosphorus ratio of 2.46.
- Taxon
- triticale
×Triticosecalee0 - Outcome
- proportion between calcium and phosphoruse0
- Value
- 2.46e0
- Qualifier
- most favorablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The most favorable proportion between calcium and phosphorus for pure crops was found in cereals (triticale and winter barley) - respectively 2.46 and 2.23”
Claim · model-written summary
Winter barley had a favorable calcium-to-phosphorus ratio of 2.23.
- Taxon
- winter barley
Hordeum vulgaree0 - Outcome
- proportion between calcium and phosphoruse0
- Value
- 2.23e0
- Qualifier
- most favorablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The most favorable proportion between calcium and phosphorus for pure crops was found in cereals (triticale and winter barley) - respectively 2.46 and 2.23”
Claim · model-written summary
Winter barley mixtures with winter pea or winter vetch had favorable calcium-to-phosphorus ratios of 1.76 to 2.57.
- Taxon
- Winter barley
Hordeum vulgaree0 - Material
- Winter barley+winter pea and Winter barley+winter vetche0
- Outcome
- mixed cropse0
- Value
- 1.76 to 2.57e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“for mixed crops - in Winter barley+winter pea and Winter barley+winter vetch - from 1.76 to 2.57.”