What this category of data looks like
The policy and regulatory basis documents for the fertilizers and pesticides sector mainly originate from official announcements, national standards and industry standard documents released by the Ministry of Agriculture and Rural Affairs, the Ministry of Industry and Information Technology, and the Ministry of Ecology and Environment, as well as industry specifications released by the National Agricultural Technology Extension Service Center. The update rhythm adjusts with policy revisions and standard updates, with no fixed high-frequency update cycle. Most document structures include release document numbers, effective dates, clauses and sub-clauses, attached test standards, and other content. Exclusive fields include pesticide registration certificate numbers, fertilizer implementation standard numbers, and prohibited ingredient lists. Common units involve milligrams per kilogram, hectares, tons, and other commonly used measurement standards for agriculture and chemical industries.
What constraints do these characteristics impose on the "document parsing and chunking" link
The fixed structure and exclusive fields of policy documents require the parsing process to retain metadata and clause integrity, avoiding loss of key information such as document numbers and standard numbers after chunking. The multi-clause content layout requires that single policy content is not split during chunking; otherwise, subsequent Q&A will fail to associate complete clauses. Attached test report attachments in documents are mostly PDF files with tables, so the corresponding relationship between table cells must be accurately parsed to avoid data misalignment. The presence of exclusive units requires that the binding relationship between units and corresponding clauses is retained during chunking, to prevent missing or mismatched units during Q&A.
How to set the configurations
Reference only; verify against the target FastGPT release and deployment documentation.
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | The length of single clauses in fertilizers and pesticides policy documents is concentrated between 500-1000 characters. This range can retain the complete logic of single clauses and avoid cross-block splitting |
chunkSplitter | Split by section titles and paragraphs | Policy documents have clear section numbering and clause division. Splitting by this method can retain the integrity of document structure |
customPdfParse | Enabled | Can extract exclusive metadata such as document numbers and implementation standard numbers from policy documents, avoiding loss of key information |
PARSE_FILE_TIMEOUT_SECONDS | 120 seconds | Most single policy PDF files have 10-50 pages. This duration can cover the parsing needs of most files |
UPLOAD_FILE_MAX_SIZE | 1000 MB | Can accommodate policy documents with high-definition test report attachments |
Three common mistakes
- An error pop-up appears during PDF parsing, or the parsing status stays at "Processing" for an extended period before failing. This occurs because the
customPdfParseconfiguration is not enabled, which cannot adapt to the special format with document number columns in fertilizers and pesticides policy documents, leading to recognition failure of the parsing engine. - After uploading multiple policy files, the parsed chunk content cannot be associated with the source file, and search results cannot distinguish corresponding documents. This occurs because the chunking setting for binding metadata to files is not enabled, and identification fields such as source file name and issuing unit are not added for each chunk.
- When the parsed chunk variable output by the node is stored in a Feishu multi-dimensional table, an abnormal status code is returned or the stored fields are empty. This occurs because the HTTP request header and parameter format are not configured correctly, and the chunk content is not converted to the JSON structure required by the target platform.
How to confirm configurations are set correctly
- A single fertilizers and pesticides policy document is uploaded, and the parsed chunks are verified to retain exclusive fields including clause numbers and implementation standard numbers.
- Multiple different policy files are uploaded, and each chunk is verified to be associated with the corresponding source file identification.
- A knowledge base search test is triggered, keywords from the policy are entered, and the returned chunk content is verified to cover the complete policy semantics.
- A single policy document with high-definition attachments is uploaded, and the upload process is verified to not trigger a file size limit prompt.
The values given are common starting points and should be measured against the reader's own samples.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-28.