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All Journal Journal of Tropical Soils Jurnal Penelitian dan Pengembangan Pertanian Journal of Degraded and Mining Lands Management
Neneng Laela Nurida
Indonesian Centre for Agricultural Land Resources Research and Development Jalan Tentara Pelajar No. 12, Bogor 16114
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Environmental Science

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GREENHOUSE GAS EMISSIONS AND LAND USE ISSUES RELATED TO THE USE OF BIOENERGY IN INDONESIA Sarwani, Muhrizal; Nurida, Neneng Laela; Agus, Fahmuddin
Jurnal Penelitian dan Pengembangan Pertanian Vol 32, No 2 (2013): Juni 2013
Publisher : Pusat Perpustakaan dan Penyebaran Teknologi Pertanian

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Abstract

Biofuel use is intended to address the ever-increasing demand for and scarcer supply of fossil fuels. The recent Indonesia government policy of imposing 10% mixing of biodiesel into petroleum-based diesel affirms the more important biofuel role in the near future. Palm oil, methane from palm oil mill effluent (POME) and animal wastes are the most prospective agricultural-based biofuels. The production and use of palm oil is interlinked with land use and land use change (LULUC), while the use of methane from POME and animal wastes can contribute in reducing emissions. The current European Union (EU) and the potential United States (US) markets are imposing biodiesels’ green house gas (GHG) emission reduction standards (ERS) of 35% and 20%, respectively relative to the emissions of petroleum-based diesel based on using the lifecycle analysis (LCA). EU market will increase the ERS to 50% starting1 January 2017, which make it more challenging to reach. Despite controversies in the methods and assumptions of GHG emission reduction assessment using LCA, the probability of passing ERS increases as the development of oil palm plantation avoid as much as possible the use of peatland and natural forests. At present, there is no national ERS for bioenergy, but Indonesia should be cautious with the rapid expansion of oil palm plantation on existing agricultural lands, as it threatens food security. Focusing more on increasing palm oil yield, reducing pressure on existing agricultural lands for oil palm expansion and prioritizing the development on low carbon stock lands such as grass- and shrublands on mineral soils will be the way forward in addressing land scarcity, food security, GHG emissions and other environmental problems. Other forms of bioenergy source, such as biochar, promise to a lesser extent GHGemission reduction, and its versatility also requires consideration of its use as a soil ameliorant.
Coal fly ash amendment: affecting soil resistance, water retention, and root growth in sandy soils Jubaedah, Jubaedah; Iskandar, Iskandar; Baskoro, Dwi Putro Tejo; Mulyanto, Budi; Nurida, Neneng Laela; Yustika, Rahmah Dewi; Maswar, Maswar
Journal of Degraded and Mining Lands Management Vol. 12 No. 4 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.124.8421

Abstract

Studies have shown that coal fly ash (CFA) can improve soil physical properties (such as bulk density) and increase available water content. However, its pozzolanic properties may also contribute to soil compaction. The overall impact of these contrasting effects on soil behavior remains insufficiently understood. This study investigated the effects of CFA amendment on soil resistance, water retention, and corn root growth in sandy soil. Using a completely randomized design, the research was conducted at the Taman Bogo Agricultural Station in East Lampung for two planting seasons (October 2022 - June 2023). Four CFA rates (0%, 3%, 6%, and 12% w/w) were applied in lysimeter plots with five replications. The results demonstrated that CFA application reduced soil bulk density (BD) at 6% and 12% rates due to CFA’s lower BD than the soil. However, higher CFA doses increased soil penetration resistance (PR), likely due to surface crust formation rather than pozzolanic reactions. Plant available water capacity (PAWC) significantly increased by 6% and 12% CFA, thus improving soil water retention. Improving physical properties in the second season promoted root growth at the 12% CFA rate. The use of CFA in sandy soils leads to improvement in selected physical properties and enhances water retention. Therefore, while CFA enhances water retention, its effects on soil compaction and root growth must be carefully managed to ensure optimal results.
Biochar Based Soil Amendment Formulation for Improvement Upland Acidic Soil in East Lampung: Soil Properties and Maize (Zea Mays) Yield Nurida, Neneng Laela; Jubaedah, .
JOURNAL OF TROPICAL SOILS Vol. 24 No. 1: January 2019
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2019.v24i1.33-41

Abstract

Many of soil amendment formulations (as a biochar based) have been tested in Indonesian Soil Research Institute greenhouse experiment to improve its effectiveness in the soil, though field experiments were still needed to measure more about its effectiveness. The objectives of this research are to study biochar-based soil amendment formulation on different ways of application in improving soil properties and crop yield in upland acidic soil. The research was conducted in Taman Bogo Research Station, East Lampung during three planting seasons. It started at January 2013 and finished at January 2014. The study was arranged in a split plot design with 3 replications. The main plot was 3 types of soil amendment formula namely SP50, SP75 and KS50. The subplot was the biochar-based soil amendment application way (7.5 Mg ha-1 per planting seasons), which gradually applied to soil namely three times of 3 planting seasons (2.5-2.5- 2.5 Mg ha-1), two times of 3 planting seasons (5.0-2.5-0 Mg ha-1), and a single time in 3 planting seasons (7.5-0-0 Mg ha-1). The plant indicator was maize (Zea mays), Bisma variety.  The variables observed were soil physical and chemical properties, and also maize yield. The results showed that during three planting seasons, the three types of soil amendment formulas had no effect on soil physical properties (Bulk density/BD and plant available water pores/AWP) and soil chemical properties (soil pH, organic C, K2+, Ca2+ and Al3+), and maize yield.  Biochar gradual application in two times (5.0-2.0-0 Mg ha-1) and a single time (7.5-0-0 Mg ha-1) had more effects and consistently improve AWP, soil chemical properties, and dry grain during 3 planting seasons compared to the application of 3 times in 3 planting seasons (2.5-2.5- 2.5 Mg ha-1). The dried grain yield was 3.11-5.23 Mg ha-1 per season or it was increased 291% in average during three planting seasons. Biochar application at a single time (at the beginning of the season at the rate of 7.5-0-0 Mg ha-1) provided positive residual effects on both soil and crop in upland acidic soil of East Lampung.
Co-Authors Budi Mulyanto Dwi Putro Tejo Baskoro Fahmuddin Agus Iskandar Iskandar JUBAEDAH JUBAEDAH, JUBAEDAH Jubaedah, . Maswar Maswar Muhrizal Sarwani Rahmah Dewi Yustika, Rahmah Dewi