Integrated Nutrient Management of Hilly Soil of Meghalaya Cropped with Potato (Solanum tuberosum)

摘要

Irrespective of treatment combinations total N, available P_(2)O_(5), K_(2)O and S decreased with the age of potato crop. However, changes in organic C in soil showed an opposite trend of results. Irrespective of treatments, organic C content increased with increase in the period of crop growth. Pooled data of two years revealed that comparatively higher amount of total N, available P_(2)O_(5), K_(2)O and S is accumulated in soil at maturation stage of potato which received recommended doses of N, P and K along with FYM at 10 t ha~(-1) as well as biofertilizer and S at 40 kg ha~(-1)(T_(9)). Statistical analysis of the results also revealed that T_(9) treatment is significant with respect to control. Results thus pointed out that balanced and proper dose of fertilization increased available nutrient contents in soils.