| This is then stacked into windrows or movable racks under a roofed area, and the piles are periodically aerated. |
| The compost is stacked in huge heaps or windrows, which are turned once a week. |
| The cutworms will hide in the ground near the plants or under windrows during the day. |
| He uses excavators to feed the grinders, drawing from material piled up or raked into windrows by the land-clearing contractor. |
| In the field where the canning factory sprays its waste water, the grass was cut into windrows yesterday. |
| Cut and crimp as bottom leaves begin to yellow, and don't turn windrows before harvest. |
