Influence of organic fertilizers on changes in soil properties under open and protected cultivation practices

Abstract

An experiment conducted to evaluate the influence of different organic manure on soil properties under glasshouse and open field condition at Khumaltar, Lalitpur during 2017-2018 showed insignificant results on major soil properties by the application of different organic manure under open and protected environmental condition at varying sampling days. The experiment was laid out in Complete Randomized Design (CRD) with three replications and six treatments viz. Vermicompost (VC) @ 10:1 gkg-1 of soil (T1), FYM @ 10:1 gkg-1 of soil (T2), Poultry Manure (PM) @ 10:1 gkg-1 of soil (T3), Safal Kishan (SK) @ 10:1 gkg-1 of soil (T4), Nepalese Organic Fertilizer (NOF) @ 10:1 gkg-1 of soil (T5) and Control (T6). Application of poultry manure and Safal kisan under glasshouse condition recorded higher organic matter (6.40 %) at 90 days and application of poultry manure under open condition at 30 days recorded higher total Nitrogen Content (0.53%). Application of vermicompost and poultry manure under open condition at 60 days have highest available Phosphorous content (381 kgha-1), whereas application of poultry manure under open condition at 60 days was observed having highest available potassium content (782 kgha-1) in the soil.