Hollows in Turf 
Depressions and dips in a turf surface. A hollow may have gradual or steep gradient and may be large or small in size. Depending upon the extent and nature of a hollow, it can be made even by several means:
Hollows in Turf
Depressions and dips in a turf surface. A hollow may have gradual or steep gradient and may be large or small in size. Depending upon the extent and nature of a hollow, it can be made even by several means: