Author(s):

Supriya UL, Ganapathi and Dinesh Kumar M

Abstract: An investigation was carried out to study the effect of subsurface fertigation on fertility status of soil under sugarcane crop cover in Arsapura and Yellebethuru villages of Davangere district, Karnataka during 2015-16. The soil pH and soil organic carbon status under subsurface fertigated sugarcane farms decreases with increasing depth. The soil pH status was neutral to alkali in nature and soil organic carbon ranged from low to medium. A soil were non saline and there was less variation in EC values in farms with depth but were higher at surface layer and lower at subsurface layer. The available nitrogen, phosphorus and potassium in soil showed decreasing trend with depth. The available nitrogen was medium, available P₂O₅ and available K₂O₅ ranged from low to medium. The calcium, magnesium and available sulphur in soil increases with depth and were higher at 45-60 cm and 60-75 cm than surface layer under selected subsurface fertigated farms. The exchangeable calcium, magnesium and available sulphur was sufficient.

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