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Record W2180444284 · doi:10.24266/0738-2898-18.1.13

Flood Irrigation of Container-grown Euonymus and Thuja as Affected by Fertilizer Rate and Substrate

2000· article· en· W2180444284 on OpenAlex
Glen P. Lumis, Peter Purvis, Ligita Taurins

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueJournal of Environmental Horticulture · 2000
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicIrrigation Practices and Water Management
Canadian institutionsUniversity of Guelph
Fundersnot available
KeywordsBark (sound)PeatSphagnumFertilizerHorticultureSubstrate (aquarium)IrrigationEuonymusBotanyChemistryAgronomyBiologyEcology

Abstract

fetched live from OpenAlex

Abstract Euonymus fortunei [(Turcz.) Hand.-Mazz.] ‘Emerald Gaiety’ and Thuja occidentalis L. ‘Little Giant’ were grown outdoors in #1 (3 liter) containers for one season on waterproof, crushed stone beds flooded and drained from below the stone. Plants were grown in a bark substrate (2/3 pine bark:1/3 sphagnum peat) or a peat substrate (1/3 pine bark:2/3 sphagnum peat) with either a high or medium rate of incorporated, controlled release fertilizer [17N–2.6P–10K (Sierra 17–6–12)] [6.0 or 4.0 kg/m 3 (l0.0 or 6.7 lbs/yd 3 )]. For both species, the high fertilizer rate resulted in less top dry weight, and higher substrate electrical conductivity (EC) and NO 3 -N. Foliar N levels were also higher with the higher fertilizer rate. Compared with bark, the peat substrate resulted in less top dry weight of Thuja (not Euonymus ) and higher substrate EC, NO 3 -N and water retention, and foliar N levels. Substrate EC levels in the upper one-third [5 cm (2 in)] of the container were nearly twice those in the lower two-thirds [10 cm (4 in)], reaching 7.1 dS/m with the high fertilizer rate in peat. In comparison to plants under overhead irrigation (high fertilizer rate only), flooded plants grew as much as ( Euonymus ) or more ( Thuja ) in the bark substrate but both species grew less in the peat. Substrate EC and NO 3 -N with flood were either similar or lower in bark, but similar or higher in peat compared to overhead. The amount of roots and their distribution appeared similar for both types of irrigation.

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.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.952
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

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)0.0010.000

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 head0.004
GPT teacher head0.173
Teacher spread0.169 · 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