What is land preparation for lettuce?
The field is plowed, weeded, and furrows made. Then, seeded. When it is picked they do right in the field, clean and box it.
- Land preparation typically involves plowing, harrowing, and leveling the field to make it suitable for crop establishment. Draft animals, such as buffalo and oxen, 2-wheel tractors or 4-wheel tractors can all be used as power sources in land preparation. The initial soil tillage can also be performed with a rotovator instead of a plow.
Lettuce rots when you expose it to air for a long period of time. After that long period of time mold/ fungus can grow on it by sinking its hyphae into the lettuce and absorbing all of the nutrients. It can also rot by bacteria. If you leave lettuce in the open for a long period of time tiny bacteria that flies in the air can land on the lettuce and have a tasty snack.
Salmonella is a living organism, a bacterial pathogen. If it is present ON lettuce, it got there because someone infected with Salmonella handled the lettuce without observing proper hygiene procedures (washing their hands and wearing protective gloves for food preparation) or by cross contamination in the water the salad was washed in - poor hygiene in the kitchen or farm.