Furrow irrigation involves:

Furrow irrigation involves:

• A. Flooding the entire field with water.
• B. A trench that is flooded with water; about one-third water is lost.
• C. Water delivered to rows through furrows that run along crops.
• D. Water is sprayed across the field from overhead nozzles.

Answer: (C)

Furrow irrigation delivers water by channeling it through small furrows that run along the crop rows, so water flows between the plants and infiltrates the root zone. This approach targets where the roots are, helping water enter the soil with gravity and reducing surface evaporation and runoff compared with flooding the entire field. It works well for row crops when the soil, slope, and furrow design promote even infiltration; uneven distribution can occur if furrows are too long or the soil infiltrates unevenly. Flooding the entire field wets everything, overhead sprinklers spray water from above, and flooding a single trench describes a different setup that doesn’t align with the row-aligned furrow method.

Furrow irrigation delivers water by channeling it through small furrows that run along the crop rows, so water flows between the plants and infiltrates the root zone. This approach targets where the roots are, helping water enter the soil with gravity and reducing surface evaporation and runoff compared with flooding the entire field. It works well for row crops when the soil, slope, and furrow design promote even infiltration; uneven distribution can occur if furrows are too long or the soil infiltrates unevenly. Flooding the entire field wets everything, overhead sprinklers spray water from above, and flooding a single trench describes a different setup that doesn’t align with the row-aligned furrow method.