Effect of Biochar from Urban Waste and Eco-enzymes on Growth and Yield of Shallots (Allium ascalonicum, L)

Elisabet Restiana Jaya,Anak Agung Sagung Putri Risa Andriani Anak Agung Sagung Putri Risa Andriani,Yohanes Parlindungan Situmeang Yohanes Parlindungan Situmeang

doi:10.22225/seas.5.2.3871.105-113

Elisabet Restiana Jaya, Anak Agung Sagung Putri Risa Andriani Anak Agung Sagung Putri Risa Andriani + Show 1 more

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https://doi.org/10.22225/seas.5.2.3871.105-113

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Abstract

Abstract This study aims to determine the effect of biochar dose from urban waste and the concentration of eco-enzymes and their interactions on the growth and yield of shallots. The research was carried out in the greenhouse of the Faculty of Agriculture,Warmadewa University with an altitude of 25 m above sea level, and took place from April to June 2021. This study used a factorial randomized block design method consisting of two factors. The first factor is the dose of biochar with 4 levels (0; 5; 10; and 15 tons ha-1), while the second factor is the concentration of eco-enzyme which consists of 4 treatment levels (0; 7.5; 15.0; and 22.5 ml l-1). The results showed that the interaction between the dose of biochar and the concentration of eco-enzyme had a significant effect on the fresh weight of the stover per clump and had a very significant effect on the dry weight of the stover per clump, but had no significant effect on other variables. The treatment dose of biochar and eco-enzyme had a very significant effect on all observed variables. The results showed that the biochar and eco-enzyme treatments had a very significant effect on all observed variables. The application of biochar and eco-enzyme has a very significant effect on all observed variables. The provision of biochar treatment from urban waste was able to increase the fresh weight of tubers in the 15-ton ha-1 treatment, which was an increase of 39.40% compared to without biochar, while the highest fresh fruit weight was obtained in the eco-enzyme treatment of 22.5 ml l-1, which increased by 29.77% compared without eco-enzyme. Keywords: Biochar; urban waste; eco-enzyme; shallots

Highlights

Shallots (Allium ascalonicum L.) is one of the leading commodities in several regions in Indonesia which is used as a cooking spice and contains several substances that are beneficial to health, its properties are anti-cancer and substitute for antibiotics, lowering blood pressure, cholesterol [1]
The biochar used comes from power plant residues made from organic waste pellets from the Klungkung final disposal site, while eco-enzymes are made from organic waste: fruit peels, vegetables, or other organic waste that is fermented in a container filled with water and sugar/ molasses stored or fermented for nine months
In this study using a factorial Randomized Block Design (RAK) method consisting of two factors, namely: The first factor is the dose of biochar (B) consisting of 4 levels of treatment, namely; B0 = 0 tons ha-1, B1= 5 tons ha-1 (12.5 g/polybag), B2 = 10 tons ha-1 (25 g/polybag), and B3 = 15 tons ha-1 (37.5 g/polybag), The second factor is the concentration of eco-enzyme (E) consisting of 4 levels of treatment, namely; E0 = 0, E1 = 7.5 ml l-1, E1= ml l-1, and E3 = 22.5 ml l-1. treatment combinations were repeated 3 times so that 48 experimental units were obtained

Summary

Introduction

Shallots (Allium ascalonicum L.) is one of the leading commodities in several regions in Indonesia which is used as a cooking spice and contains several substances that are beneficial to health, its properties are anti-cancer and substitute for antibiotics, lowering blood pressure, cholesterol [1]. Shallots are one of the national priority and superior vegetable commodities that can be developed through increasing planting area, productivity, production stability, and quality [2]. The need for shallots per year in Bali is very large, reaching 11.268 tons, this is in line with the increasing number of people who increase every year, while the production of shallots decreases. Shallot production in Bali in 5 years (2015-2019) has experienced ups and downs every year, in 2015 the production of shallots reached 10,147 tons while in the following year 2016 it increased to 18,024 tons, in 2017 and 2018 there was a drastic increase of 20,287 tons and 24,267 tons while in 2019 it decreased to 19,687 tons. The availability of nutrients in the soil can affect plant growth and development. Organic fertilizer comes from plants and or animals that have undergone an engineering process and contain nutrients

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