1Directorate of Extension Education, Punjab Agricultural University, Ludhiana-141 004, Punjab, India
Department of Agriculture, Khalsa College, Amritsar-143 005, Punjab, India
*Corresponding Author: Iqbal Singh Dhillon, Directorate of Extension Education, Punjab Agricultural University, Ludhiana-141 004, Punjab, India, Email: iqbaldhillon14@gmail.com
Online published on 22 October, 2020.
The present investigation was conducted at the Research Farm, Khalsa College, Amritsar during rabi season of 2017-18 in order to evaluate the impact of organic manures (FYM, Vermicompost, Poultry manure) and inorganic fertilizers on soil physico-chemical properties and available nutrient status in soil after onion (Allium cepa L.) harvest. The experiment was laid out in randomized block design with twelve treatments and replicated thrice. It was observed that significant variation in organic carbon, bulk density, available macro (N, P, K and S) and micro (Fe, Mn, Zn and Cu) nutrients status was noticed when organic manures were integrated with inorganic fertilizers as compared to sole use of inorganic fertilizers and initial status of soil. The maximum available nutrient status was recorded with treatment T12 {25% RDNF + 25% N (FYM) + 25% N (VC) + 25% N (PM)} whereas lowest was recorded with treatment T1 (control). The soil properties such as pH, EC, particle density and porosity did not showed any significant difference.
Integrated nutrient management, Onion, Soil physico-chemical properties
