Seeds (2) Research (2) Production (Economic theory) (2) Lettuce (2) Germination (2) Fermentation (2) Evaluation (2) Estudios (2) Evaluación (2) Lechuga (2) Semillas (2) Germinación (2) Producción (2) Investigación (2) Fermentación (2) production (2) Pérou (1) Beer industry (1) Greenhouse gases (1) Minors (1) Employees (1) Salmonella (1) Trout (1) Trials (1) Stability (1) Sewage sludge (1) Sewage--Purification (1) Quality of products (1) Potassium (1) Pollution (1)