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The role of chalk in calcareous soils
- Das, S.
- Agronomy journal 1931 v.23 no.9 pp. 709-716
- calcareous soils, chalk, calcium carbonate, Eleusine coracana, India
- 1. Pot experiments have shown that the presence of increasing proportions of chalk in a soil up to a certain limit tends to produce a better yield of crops. 2. When chalk is replaced by an inert substance like sand, a similar, though smaller, increase in crop yield is obtained. 3. This is attributed, among other factors, to an improved physical texture of the soil induced by mechanical opening.