MétaCan
Menu
Back to cohort

Efeitos de diferentes doses de fosforo e da colonização fúngica da raiz sobre o crescimento e a absorção de nutrientes em seringueira (>i<Hevea brasiliensis>/i<, Muell. Arg.)

2019· dissertation· pt· W2996757443 on OpenAlexaff
Otavio Manoel Nunes Lopes

Bibliographic record

Venuenot available
Typedissertation
Languagept
FieldAgricultural and Biological Sciences
TopicGrowth and nutrition in plants
Canadian institutionsDiscovery Air (Canada)
Fundersnot available
KeywordsHevea brasiliensisNutrientHeveaBiologyChemistryNatural rubberEcology

Abstract

fetched live from OpenAlex

Foi conduzido um experimento em casa-de-vege tação, no Campus da Escola Superior de Agricultura "Luiz de Quet roz" para determinar os efeitos de micorriza VA e de diferentes doses de fósforo sobre o crescimento de mudas de seringueira.O delineamento experimental foi inteiramente casualizado num arra� JO fatorial 3 x 2 com seis repetições.Os tratamentos constaram de três doses de fósforo: 0,9; 1,8; 2,7g/planta de P205, tendo como fonte o superfosfato triplo, e dois tratamentos de inocula çao: nao inoculado e inoculado com Gigaspora margarita,ambos em solo nao esterilizado.Os parâmetros analisados foram ln[ccçio radicular, altura das plantas, diâmetro do caule, p�so da mat� ria seca da parte aerea e teor foliar e absorçâo total de N,P ,K Ca, Mq, S, B, F�, Mn e Zn.As avaliações foram reZJ.lizadasnove meses apos a instalação de experimento.A aplicação da dose 2,7g/planta de P 2 05 favoreceu a infecção radicular e aumentou o crescimento das plantas em altura e diâmetro, pêso da matéria seca da parte aerea e teor foliar de P,S e B. Diminuto teor foliar de K, e nao influiu nos teores de N,Ca,Mg,Fe,Mn e Zn.Aumentou a absorção tQ tal de N,P,Ca,Mg,S,B,Fe e não in::lui: Í na absorção de K,Mn e Znp� las plantas.As análises de raízes nao evidenciaram a pr� sença do fungo MVA inoculado e sim urna infecção por Rhizoctonia .§..E•, que promoveu maior crescimento das plantas em altura, diâmetro e aumentou o peso da mat�ria seca da parte aérea dentro da dose 2, 7g/planta de P20s.Esta infecc;ão nê\o influiu no teor foliar de P,K,Mg,S,Fe,Mn e Zn, mas aumentou o teor foliar de Ca, B e diminui o de N na dose 2,7g/planta de P20 5 , tendo na �esma do .\/ i .se, aumentado a absorção total de P,Ca,Mg e 8, nao influindo na absorç�o de N,K,S,Fe,Mn e Zn pelas plantas.O suprimento de boro ao solo, na concentração de l ppm, induziu condiç6es de toxicidade, inibindo o crescimen to das plantas.. vii.

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)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.005
Threshold uncertainty score0.010

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

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 head0.021
GPT teacher head0.255
Teacher spread0.234 · 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 designBench or experimental
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
Published2019
Admission routes1
Has abstractyes

Explore more

Same topicGrowth and nutrition in plantsFrench-language works237,207