Process / pipelineGrowth stages and timing
Phenological Observation
Phenological Observation is an observational and classification pipeline for systematically recording crop development stages from germination to maturity. Standardized through crop-specific scales (Zadoks for cereals, Fehr for soybean), this method enables precise communication of crop status, timing of management decisions (fungicide application, irrigation), and prediction of harvest readiness.
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Sources
- Zadoks, J. C., Chang, T. T., & Konzak, C. F. (1974). A decimal code for the growth stages of cereals. Weed research, 14(6), 415-421. DOI: 10.1111/j.1365-3180.1974.tb01084.x ↗
- Fehr, W. R., & Caviness, C. E. (1971). Stages of soybean development. Iowa State University Special Report No. 80. link ↗