1956 Volume 24 Issue 3 Pages 157-158
1. The practical systems of harrowing may be grouped into 3 types. a. Complicated type : A course consisting of the common type and additional spading work inserted half way generally practised on drainable paddy fields. b. Common type : A course consisting of five steps of work from hoeing-up to leveling, practised on undrainable or semi-drainable paddy fields. c. Simple type : Sub-type i-A course consisting of forur steps of work, practised on, undrainable fields. Sub-type ii-A course consisting of three steps of work practised on undrainable fields. Sub-type iii-A course consisting of two steps of work practised on undrainable paddy fields.