Application of Coconut Shell Biochar and Rhizobacteria Consortium to Increase Cocoa Production (Theobroma cacao L.)

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Published
Aug 27, 2023
DOI
https://doi.org/10.22302/iccri.jur.pelitaperkebunan.v39i2.545

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Reynaldi Laurenze
Hasanuddin University
Ambo Ala
Hasanuddin University
Ifayanti Ridwan Saleh
Hasanuddin University

Abstract

The decline in Indonesia’s cocoa production as a result of soil fertility degra dation causes fertilization to become one of effective effects. Because of that, it is possible to restore soil fertility potential by using soil fertility enhancer biochar combined with rhizobacteria consortium to create suitable conditions for plant.This research was aimed to study and investigate coconut shell biochar interacts with rhizobacteria in increasing cocoa production. This research was conducted at Kodeoha, North Kolaka, Southeast Sulawesi from September 2022 until March 2023. A split plot design with three replications each consisted of two experimental units was used as an experimental design. Biochar dosage as the main plot consisted of four levels, namely 0 ton ha-1 (control), 2.5 ton ha-1, 5 ton ha-1, and 7.5 ton ha-1 and rhizobacteria concentration as the sub plots consisted offour levels, namely 0 mL L-1, 50 mL L-1, 100 mL L-1, and 150 mL L-1. Results of this research showed a significant interaction between biochar 5 tons ha-1 and rhizobacteria 100 mL L-1 which provide best result for chlorophyll a (336 μmol m-2), chlorophyll b (150 μmol m-2), and total chlorophyll (484 μmol m-2). The interaction between biochar 5 tons ha-1 and rhizobacteria 150 mL L-1 showed the best results for number of harvested pods per tree (10.00 pods), bean weight per tree (606 g trees-1), stomata opening area (31 μm2). The interaction between biochar 7.5 tons ha-1 and rhizobacteria 150 mL L-1 showed the best results on the weight of 100 dry beans at water content 8% (159.03 g)

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How to Cite
Laurenze, R., Ala, A., & Saleh, I. (2023). Application of Coconut Shell Biochar and Rhizobacteria Consortium to Increase Cocoa Production (Theobroma cacao L.). Pelita Perkebunan (a Coffee and Cocoa Research Journal), 39(2), 119-128. https://doi.org/10.22302/iccri.jur.pelitaperkebunan.v39i2.545
Issue
Vol 39 No 2 (2023)
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Articles
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Author Biographies

Ambo Ala, Hasanuddin University

Professor of Agriculture Unhas, Prof. Dr. Ir H Ambo Ala is a figure who never stops making achievements for the red campus. He has won a number of prestigious awards. The awards he has received include the title of exemplary lecturer I Unhas in 1990, the Indonesian President's award in the form of the Satyalencana Karya Satya in 1997, the Satyalencana Wyra Karya award in 1998. Furthermore, the 2002 Adikarya Agricultural Development Award, and the Award as Researcher with Achievement in Plantation Innovation from the Minister of Agriculture of the Republic of Indonesia, Suswono. The Ambo award was received on August 30, 2013 at the Jakarta Convention Center.  Not only achievements, he has also held a number of important positions. For example, Head of the Ecology Laboratory at the Faculty of Agriculture, Hasanuddin University until 1990, Head of the Unhas Field Laboratory (1987-1989), Dean of the Faculty of Agriculture, Indonesian Muslim University (UMI) Makassar (1987-1994). Then, became Chair of the Unhas SSP-PPs Study Program (1987-1989), Assistant Dean (PD) III of the Faculty of Agriculture (Faperta) Unhas (1989-2005), Dean of Faperta Unhas (1995-2002), Assistant Rector (PR) III Unhas (2002-2006), Head of the South Sulawesi Provincial Food Security Agency (2006-2007). Ambo has also served as Secretary of the Presidential Advisory Council for Agriculture (2007-2009), Secretary of the Unhas Senate (2015-2018), Member of the Commissioner of PT Perkebunan Nusantara XIV (2012-2016), to serve as Main Commissioner of PT Perkebunan Nusantara XIV (2016-present) . This member of the Unhas Board of Trustees (MWA) was also a candidate for chancellor in the 2005 period.

Ifayanti Ridwan Saleh, Hasanuddin University

Ifayanti Ridwan Saleh SP MP PhD as junior lecturer in Hasanuddin University. Not only that, she also served as Head of Publication, Faculty of Agriculture, Hasanuddin University now. She is very active in following and being a reviewer in several scientific articles for publication purposes.
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