Agricultural Spray Inspection According to ISO 16122
Bibliographic record
Abstract
The development of the primary sector by expansion of cultivation areas and the raise of productive indexes promotes a larger use of agrotoxics, causing problems related to the inefficiency of applications, which becomes an issue to be studied, especially regarding the quality of sprayers and the precision of spraying. The goal of the present paper is to determine the condition and conservation of agricultural sprayers used in the West border and the Central region of Rio Grande do Sul state (RS), in southern Brazil, as well as identifying the most recurring problems, and assessing the applicability of ISO 16122 in the country’s reality. The execution of this work originated the Projeto de Inspeção de Pulverizadores Agrícolas (PIPA) [Agricultural Sprayer Inspection Project], which was undertaken in two regions of RS, inspecting 56 sprayers. The inspections were carried out by using the technical kit for agricultural sprayer inspection, according to requirements in the methodology described in ISO 16122 (2015). After evaluations were conducted, the data collected were submitted to exploratory analysis by descriptive statistics with the use of percentage frequency. Based on the results obtained, it was possible to conclude that there is need for agricultural sprayer inspection to become mandatory in Brazil. Considering the most frequent application problems, it was possible to verify that, in 64.29% of the evaluations, the precision of the manometer was considered as seriously flawed; in 73.21%, the transverse distribution of the spray wand was also seriously flawed, which is related principally to errors in the space among spray nozzles, and to their wear, affecting 76.79% of the cases in terms of application volume. Besides these, it was also observed that, in 69.64% of the inspected sprayers, the PTO rotation was below recommendation. In relation to the applicability of ISO 16122, it was concluded that there is need for it to be updated, developing specific methodologies for the inspection of self-propelled sprayers. In this sense, in case it be transcribed as ABNT NBR ISO 16122, the latter must specify new parameters so it be unanimously and appropriately used in accordance to Brazilian reality.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.007 | 0.014 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.005 | 0.003 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 0.004 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".