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Record W2486834333 · doi:10.5539/jas.v8n8p42

Potential of Cover Crops in Promoting Mycorrhizal Diversity and Soil Quality in Organic Farms

2016· article· en· W2486834333 on OpenAlexvenueno aff
Pushpa Soti, Savannah Rugg, Alexis Racelis

Bibliographic record

VenueJournal of Agricultural Science · 2016
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicMycorrhizal Fungi and Plant Interactions
Canadian institutionsnot available
FundersNational Institute of Food and AgricultureUniversity of Texas Rio Grande ValleyU.S. Department of Agriculture
KeywordsCover cropAgronomyLablab purpureusBiologySoil organic matterLegumeSoil waterEcology

Abstract

fetched live from OpenAlex

Mycorrhizal fungi play a crucial role in agroecosystems with their ability to enhance nutrient and water uptake and aid in weeds and pest suppression. Mycorrhizal fungi have a symbiotic association with plants, one which is highly influenced by the interaction between soil and plant conditions. In this study, we analyzed the potential to increase the density and diversity of mycorrhizal fungi of using four different cover-crops: lablab (Lablab purpureus), sunn hemp (Crotalaria juncea), pearl millet (Pennisetum glaucum), and sudangrass (Sorghum drummondii). We examined changes in the density, diversity and structure of mycorrhizal fungi before and after planting the cover crops. Our results indicate that, while the diversity of mycorrhizal fungi was not influenced by the cover-crop type, different cover crops were associated with changes in the density and structure of mycorrhizal fungi. In addition, the cover-crop type also had an impact on the soil organic matter and nutrient status. Of the four we tested, sunn hempwas associated with higher rates of percent organic matter, abundance of mycorrhiza spores, and specific micronutrients, signaling multiple benefits as a warm season cover crop, especially in organic farms that aim to minimize chemical applications.

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: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.004
Threshold uncertainty score0.007

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 communication0.0010.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.011
GPT teacher head0.216
Teacher spread0.204 · 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

Citations21
Published2016
Admission routes1
Has abstractyes

Explore more

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