Organic Fertilizer Potential Using Aspergillus niger, Pseudomonas putida and Effective Microorganisms from Coconut Water Waste in Ponorogo, East Java - Indonesia

Raden Darmawan,Hakun Wirawasista Aparamarta,Rillya Kharisma Prabatiwi,Sri Rachmania Juliastuti,Setiyo Gunawan,Reynad D.P Gultom,Nuniek Hendrianie,A.C Kumoro,W.R.W Daud,L Yung,S.A Roces,X Rong,P.T.S Nam,M.A Hussain,A.W Lothongkum,M.T Phong,Hadiyanto Hadiyanto

doi:10.1051/matecconf/201815603028

Abstract

The abundance of coconut water as a waste of household industry activities in Ponorogo can be obtained. There is still organic matter considered to become a liquid fertilizer where it can be expected to substitute for the use of inorganic fertilizers. The research aims to determine the potential of coconut water as a liquid organic fertilizer involving three types of microorganisms, such as Aspergillus niger, Pseudomonas putida and Effective Microorganisms (EM4). The experiment was conducted using a mixed bacth reactor with 4 L/ minute of aeration rate and initial microorganism`s number of approximately 107 cells/ mL for 10 days. The results suggest that the highest reduction of C-organic and the biggest enhancement of N, P, K can be achieved by a combination of A. niger and P. putida with 29 %; 100 %, 110 %, 552%, respectively.

Highlights

Use of inorganic fertilizers excessively can worsen the physical condition of the soil
One of an appropriate method is by making organic liquid fertilizer (POC) from wastewater of coconut that can be used as substitutes of synthetic fertilizers
Pseudomonas putida and Aspergillus niger are belonging to diazotroph microorganisms where the microorganisms have an important role to fix nitrogen

Summary

Introduction

Use of inorganic fertilizers excessively can worsen the physical condition of the soil. It can reduce the number of soil’s nutrients and minerals. Ponorogo is an industrial center of micro, small, and medium scale business (UMKM) for several household processed products, including traditional food products (Jenang). In this production, UMKM produces coconut water which is not utilized properly or even thrown away. The use of excessive inorganic fertilizers during this time can worsen the physical condition of the soil, so the need for the development of organic fertilizer

Methods

Findings

Discussion

Conclusion