Comparative study of soil nutrients and soil fertility status of the terrace farming soil during pre-harvest and post-harvest under Mima Village of Kohima District, Nagaland.

Abstract

In the context of this research, soil fertility status of pre-harvest soil and post-harvest soil were analysed to assess the potentiality of the soil to supply nutrients for healthy growth of plants. Soil is the source of nutrients for crops. The soils were slightly acidic to moderate with pH ranged from 5.7-6.5 and electrical conductivity (EC) ranged from 0.021 to 0.205 dS m^-1. Negative correlation was observed between soil pH and EC. The soils organic carbon (OC) was high and low to medium content in available nitrogen and potassium. OC ranged from 0.76 to 1.40 (%) and nitrogen ranged from 188.10 to 501.60 kg ha^-1 respectively. The available potassium (K) is in low to medium range and low to high in phosphorus (P) content. Micronutrients were found to be ranging from deficient to sufficient in content. Water holding capacity were also determined.  Study suggested the proper management of water run-off and maintenance of land use for better sustainable agriculture and prevention of nutrients losses.

Key words: Electrical Conductivity (EC), Nutrient index (NI), Micronutrients, Organic Carbon (OC), Kohima.