Abstract
The aim of the study was to study the effect of various predecessors on the phytosanitary condition of winter barley crops and its yield. The varieties of winter barley Master, Mikhailo, Kozyr, Dobrynya 3, approved for use in the North Caucasus region, were studied. The data obtained showed that winter barley, especially its yield, is highly dependent on its predecessors. Desirable are those predecessors that vacate the field early and provide an opportunity for early soil preparation and sowing at the optimum time. Peas, early potatoes and barley itself are noted as such precursors. These predecessors also increase the field germination of seeds, which amounted to 71.8-79.4%, lower rates were obtained for row crops, which amounted to 62.4-63.6%. It is established that the best technological indicators, ie the number of grains and the weight of the grain of the ear and 1000 grains after such precursors as peas and potatoes were obtained by 11.7%; 2.0 and 14.5%, respectively, and the same figures for corn for grain and sugar beet were minimal. The purest crops are marked by the predecessors of early potatoes, corn for grain and peas. The earlier development of root rot was the predecessor of early potatoes and peas, and the powdery mildew of corn is not grain and peas. The maximum yield was obtained from the predecessor of peas, which amounted to 4,28 t/ha in the winter barley variety Master. The lowest yield was observed in the predecessor of corn for grain in all considered varieties. Based on all indicators, the best precursors for winter barley are peas and early potatoes.
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Claims 12
Claim · model-written summary
Winter barley yield strongly depended on preceding crop.
- Taxon
- winter barley
.jpg?width=60)
Hordeum vulgaree0 - Treatment
- predecessorse0
- Outcome
- yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“winter barley, especially its yield, is highly dependent on its predecessors.”
Claim · model-written summary
Peas, early potatoes and barley preceding crops increased field germination to 71.8-79.4%, compared with 62.4-63.6% after row crops.
- Treatment
- Peas, early potatoes and barley itselfe0
- Outcome
- field germination of seedse0
- Direction
- increasee0
- Value
- 71.8-79.4%e0
- Qualifier
- 62.4-63.6%e0
- Comparator
- row cropse0
Not reportedTaxon
Verbatim
e0“Peas, early potatoes and barley itself are noted as such precursors. These predecessors also increase the field germination of seeds, which amounted to 71.8-79.4%, lower rates were obtained for row crops, which amounted to 62.4-63.6%.”
Claim · model-written summary
Peas and potatoes as predecessors increased the number of grains per ear by 11.7%.
Not reportedTaxonComparatorDirection
Verbatim
e0“the number of grains and the weight of the grain of the ear and 1000 grains after such precursors as peas and potatoes were obtained by 11.7%; 2.0 and 14.5%, respectively”
Claim · model-written summary
Peas and potatoes as predecessors produced 2.0% for grain weight per ear.
Not reportedTaxonComparatorDirection
Verbatim
e0“the number of grains and the weight of the grain of the ear and 1000 grains after such precursors as peas and potatoes were obtained by 11.7%; 2.0 and 14.5%, respectively”
Claim · model-written summary
Peas and potatoes as predecessors produced 14.5% for thousand grain weight.
Not reportedTaxonComparatorDirection
Verbatim
e0“the number of grains and the weight of the grain of the ear and 1000 grains after such precursors as peas and potatoes were obtained by 11.7%; 2.0 and 14.5%, respectively”
Claim · model-written summary
Corn for grain and sugar beet had minimal values for barley grain number and weights.
Not reportedTaxon
Verbatim
e0“the same figures for corn for grain and sugar beet were minimal.”
Claim · model-written summary
The cleanest barley crops followed early potatoes, corn for grain and peas.
Not reportedTaxon
Verbatim
e0“The purest crops are marked by the predecessors of early potatoes, corn for grain and peas.”
Claim · model-written summary
Root rot developed earlier after early potatoes and peas.
Not reportedTaxon
Verbatim
e0“The earlier development of root rot was the predecessor of early potatoes and peas”
Claim · model-written summary
Powdery mildew developed earlier after corn for grain and peas.
Not reportedTaxon
Verbatim
e0“the powdery mildew of corn is not grain and peas.”
Claim · model-written summary
Master barley yielded a maximum of 4,28 t/ha after peas.
- Taxon
- winter barleyHordeum vulgaree0
- Material
- Mastere0
- Treatment
- predecessor of pease0
- Outcome
- yielde0
- Direction
- maximume0
- Value
- 4,28 t/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum yield was obtained from the predecessor of peas, which amounted to 4,28 t/ha in the winter barley variety Master.”
Claim · model-written summary
Corn for grain as predecessor gave the lowest yield across considered barley varieties.
Not reportedTaxon
Verbatim
e0“The lowest yield was observed in the predecessor of corn for grain in all considered varieties.”
Claim · model-written summary
The authors recommend peas and early potatoes as the best preceding crops for winter barley.
- Taxon
- winter barleyHordeum vulgaree0
- Treatment
- peas and early potatoese0
- Outcome
- best precursorse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the best precursors for winter barley are peas and early potatoes.”
The same questions in other papers
Solanum tuberosum · yield · Hordeum vulgare (barley)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
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.