Without care plant may be overgrown by larger plants or eaten up. In this location farmers use to actually flood the fields once or several times a week as shown here in the picture. The foam on the water is from chemicals added.
Plants are water sensitive during the final phase of strawberry growth before harvest. Hence the plants are elevated, the water flows lower and gets the roots wet while leaving the actual plant and berries dry.
In rainy season strawberries become soft and foul easily. Hence the extra effort to keep the water away and lower than the plants.
Wet plants also attract more snails - who feed on strawberries BECAUSE all other plants have been carefully removed.
Smart farmers offer other plants such as salad, vegetable, flowers, grass to snails to safeguard the strawberries !!