EFFECTS OF DIFFERENT INTEGRATED NUTRIENT MANAGEMENT PRACTICES ON HYDRAULIC CONDUCTIVITY OF UPLAND AND LOWLAND PADDY FIELDS

Abstract

A field study was carried out during kharif season of 2018 - 19 at different paddy growing practices such as certified organic farmer’s lowland, conventional lowland and upland, INM lowland and upland practice in Parseoni Tahsil of Nagpur district to assess the soil properties like physical, chemical, biological properties and carbon pools (fractions) and yield under paddy cultivation on farmers field influenced by different organic inputs such as, manures, sowing, fertilizer, fertilizer spray, residue addition, Biofertilizers used in various paddy growing practices. Thirty Soil samples taken from paddy growing practices (5 Treatments and 6 Replications) of 0-20 cm depth were collected randomly at maturity stage of paddy crop from different locations viz., Nayakund, Chargaon, Aawleghat, Parseoni of Nagpur district were selected for recording various observations about Hydraulic conductivity of rice field  was noted from farmer’s field of above locations. Hydraulic conductivity varied among the different paddy-growing practices, with values ranging from 0.57 to 0.80 cm hr⁻¹. The highest hydraulic conductivity was recorded under organic lowland practice (0.80 cm hr⁻¹), followed by INM upland (0.76 cm hr⁻¹), conventional lowland (0.75 cm hr⁻¹) and INM lowland (0.68 cm hr⁻¹). The lowest hydraulic conductivity was recorded under conventional upland practice (0.57 cm hr⁻¹). This study reported 18.6–40% improvement in hydraulic conductivity with organic amendments compared with no-manure treatments.