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Record W7016353526

Минимализация обработки почвы под ячмень яровой в Северной Степи Украины

2013· article· en· W7016353526 on OpenAlexaboutno aff

Bibliographic record

VenueDOAJ (DOAJ: Directory of Open Access Journals) · 2013
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicAgriculture and Biological Studies
Canadian institutionsnot available
Fundersnot available
KeywordsChiselTillagePloughMinimum tillageStrip-tillMulch-tillWater contentCrop yield
DOInot available

Abstract

fetched live from OpenAlex

The effect of different tillage methods on soil agrophysical properties, water regime, weed infestation, as well as on growth and development, yield and economic efficiency of spring barley (Ilot variety) cultivation under the conditions of the Ukrainian Northern Steppe was studied. Experimental researches were carried out during 2011-2013 in a short crop rotation system: bare fallow- winter wheat -sunflower -spring barley- corn. The basic soil tillage for spring barley was performed using the plough PO-3-35 at a depth of 20-22 cm (control variant), chisel tillage – by Canadian chisel cultivator Conser Till Plow at a depth of 14-16 cm, and disc tillage – by heavy disk harrows BDT- 3 at a depth of 10-12 cm. It was found that chisel tillage provides the best conditions for moisture accumulation in the autumn-winter period due to crop residues and wavy nanorelief that ensures the maximum amount of moisture storage in spring compared to other tillage methods. Moldboard ploughing and chisel tillage influence the formation of the highest and almost identical grain yield – 2.51-2.90 and 2.36-2.88 t/ha respectively, which favourably affects total costs and profitability of barley grain production - 44.7-48.7 %.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.009
Threshold uncertainty score0.031

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0010.001
Scholarly communication0.0020.001
Open science0.0000.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0090.004

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.289
GPT teacher head0.502
Teacher spread0.213 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2013
Admission routes1
Has abstractyes

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