EFFECT OF PADDY STUBBLE BIOCHAR ON GROWTH AND YIELD OF FIELD BEAN
Loading...
Date
2022-12-08
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of Agricultural Sciences, Bangalore
Abstract
A packet experiment was conducted in University of Agricultural Sciences,GKVK, Bangalore to study the effect of paddy stubble biochar on growth and yield offield bean during 2021-2022. The experiment included 24 treatments and 2 replications.The results revealed that application of 25 t ha-1 biochar+farm yardmanure+vermicompost+ghanjeevamruth (T21) recorded higher growth parameters vizplant height(61 cm), number of branches(11), number of leaves (38) and the yieldattributes like number of pods (18 g), pod weight (17 g), biomass yield and pod yield offield bean. Growth indices such as specific leaf area, specific leaf weight and netassimilation rate did not vary significantly. The soil plant analysis development valuessignificantly varied at reproductive growth phase, however carbon dioxide assimilationand stomatal conductivity did not vary due to application of biochar. Application of
biochar along with organic amendments recorded significant improvement in waterholding capacity (42%) and bulk density of the soil. The soil pH (8.6), electricalconductivity (0.20 d sm-1), organic carbon (0.53%), primary nutrients and secondarynutrients values increased significantly, however decrease in the mronutrient status ofpost-harvest soil was noticed. There was significant increase in uptake of major,secondary nutrients and micronutrient. Plant nutrient concentration and total nutrientuptake increased in treatment T20 that received 20 t ha-1 biochar+ farm yardmanure+vermicompost+ghanjeevamruth.