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SAINS TANAH - Journal of Soil Science and Agroclimatology
Published by Universitas Sebelas Maret
ISSN : 14123606     EISSN : 23561424     DOI : -
Core Subject : Education,
Education
Arjuna Subject : -
Articles 140 Documents
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The influence of plastic mulch degradation on microplastic contamination in agricultural soils under different climatic conditions Muhammad Firman Azima; Mersi Kurniati; Irmansyah Irmansyah; Rofiqul Umam
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 22, No 2 (2025): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v22i2.100546

Abstract

Plastic mulch is widely used in agriculture to improve crop productivity by regulating soil temperature, retaining moisture, and suppressing weed growth. However, its degradation produces microplastics that can accumulate in the soil, disrupt microbial communities, and potentially enter the food chain. This study examines microplastic contamination in agricultural soils under different climatic conditions: Bogor (humid) and Lombok (hot and dry). Various analytical techniques were employed to characterize material degradation, including FTIR spectroscopy, SEM, UV-Vis, and thermal conductivity measurements. The results show that differences in climate and environmental factors such as high temperature, UV exposure, and microbial activity can accelerate mulch degradation, resulting in higher microplastic concentrations in Lombok (455 ± 57.74 particles kg-1) compared to Bogor (265 ± 43.59 particles kg-1). FTIR analysis confirmed the presence of oxidation-derived functional groups (C=O, O-H), thermal analysis indicated a decrease in the material's thermal conductivity, UV-Vis revealed increased polymer chain scission, and SEM showed significant surface degradation. These findings highlight the environmental risks of plastic mulch use and underscore the importance of adopting more sustainable alternatives to reduce microplastic pollution in agricultural soils.
Biosurfactant-enriched organic fertilizer as a sustainable strategy to reduce chemical inputs and improve maize performance on Ultisols Jamilah Jamilah; Khairul Effendi; Sunadi Sunadi; Widodo Haryoko; M. Zulman Harja Utama; Nur Qursyna Boll Kassim
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 22, No 2 (2025): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v22i2.93202

Abstract

The increasing demand for maize in Indonesia is challenged by suboptimal productivity on acidic Ultisols, despite high doses of inorganic fertilizers being applied. This study aimed to evaluate soil pH dynamics and maize response to liquid organic fertilizer (LOF) enriched with Sapindus rarak biosurfactants as a substitute for chemical fertilizers. A factorial completely randomized design was used with two factors: inorganic fertilizer (NPK + Urea) doses (0%, 50%, and 100% of the recommended rate) and biosurfactant concentrations (0%, 0.1%, 0.2%, and 0.3%). Data were analysed using the F-test at a 5% significance level, with LSD tests applied for significant effects. Results showed that soil pH in maize crops decreased over time but remained slightly acidic. Higher NPK doses generally increased soil pH, especially at 45 days after planting (DAP). Biosurfactant-enriched LOF significantly impacted leaf area index (LAI), relative growth rate (RGR), and shoot-root ratio, particularly at 60 DAP. The highest maize yield, reaching 6.60 tons per hectare, was obtained with a combination of 50% of the recommended inorganic fertilizer and 50 mL L⁻¹ of 0.1% biosurfactant-enriched LOF. This yield is comparable to the normal yield obtained by farmers when applying 100% of the recommended rate of inorganic fertilizer. Optimising fertilizer application and planting strategies to effectively manage the shoot-to-root ratio is essential for improving maize productivity and enhancing resource use efficiency. The study highlights the potential to reduce chemical fertilizer use by up to 50%, lowering costs while improving soil pH and root development. It promotes efficient resource use, supports integrated nutrient management using local materials such as Sapindus rarak, and encourages farmer training and sustainable agricultural policies to restore productivity on degraded Ultisols.
Brunauer-Emmett-Teller, Fourier-transform infrared, and scanning-electron-microscope analysis of biochar from marine organic waste Benny Hidayat; Nur Ulina Warnisyah Sebayang; Jamilah Jamilah; Adhira Mahardika
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 22, No 1 (2025): June
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v22i1.93314

Abstract

Brunauer Emmet Teller (BET), Fourier Transform Infrared (FTIR), and Scanning Electron Microscope (SEM) study are important methods for characterizing biochar produced from marine organic waste. Each technique provides insights into the physical and chemical structure of biochar, which are essential for understanding its properties and potential as a soil amendment. The purpose of characterizing biochar from marine organic waste by BET method is to specify the superficies point, pore size, and total pore volume of the biochar, FTIR to identify the characterization of organic compounds, and SEM to understand the microstructure of the biochar. BET test results indicate that biochar from marine organic waste has a superficies point of 6.213m²g-1, a pore size of 21.690Å, and Barrett–Joyner–Halenda (BJH) adsorption and desorption pore volumes of 0.040cc g-1 and 0.035cc g-1, respectively. This biochar demonstrates a higher adsorption capacity. FTIR tests reveal that the functional groups and chemical content of the biochar from marine organic waste include six types of vibrations with different wavenumbers and % transmittance values. SEM analysis at various magnifications shows that the biochar from marine organic waste (MOW) has a complex pore structure. The characterization of biochar derived from MOW illustrates its potential as a cost-effective soil amendment and environmental remediation material. Its microstructure suggests long-term stability in soil, supporting carbon sequestration and improved soil health.
Effect of soil properties on phosphate desorption from some cultivated soils in arid region Wahba, Monier M.; Zaghloul, Alaa M.
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 21, No 1 (2024): June
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v21i1.79310

Abstract

Kinetics of soil chemical processes is one of the most important areas in environmental chemistry for metals availability in soils and mechanisms of desorption. Phosphorus (P) is one of the most important macronutrients that control plant growth and crop production. The present study aims to evaluate the influences of soil properties of Alluvial (Typic torrerets) and calcareous (Typic calcids) on the Kinetics of P desorption using batch and anion exchange resin techniques used for P adsorption, which is highly correlated with P uptake by growing plants. Results indicated that P desorption was best described by empirical modified Freundlich (power function) and Elovich equations and, to a lesser degree, by theoretical diffusion and first-order equations. The rate of P desorption from the alluvial soils was positively and highly correlated and largely controlled by clay content (r=0.96**) and surface area (r=0.87**), as indicated by the simple correlation coefficient and R2 in the multiple stepwise regression analysis. These soil properties largely controlled the variations in the kinetic parameters that describe the rate of P desorption and P intensity in the four tested kinetic models. On the other hand, calcium phosphate and active CaCO3 contents in the calcareous soils were negatively correlated. They largely controlled the variations in the rate and intensity parameters of the kinetic models. These results suggest that surface precipitation on the CaCO3 surface controls P desorption in calcareous soils, while reversibly, phosphate adsorption on the clay surface controls P desorption in the alluvial soils, which decreases in both cases, crop production.
Rubber plantations in tropical landscapes: agronomic systems, environmental impacts, and evidence-based management recommendations Fadeila Mohammed Hashim Ali; Syaharudin bin Zaibon; Md Kamal Uddin; Ahmed Abubakar; Shamsul Haque
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 22, No 2 (2025): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v22i2.101146

Abstract

While Natural Rubber (NR) supports global supply chains, rapid expansion in South and Southeast Asia has noticeable effects on biodiversity, hydrology, and the carbon balance. This review synthesises the economic importance, environmental challenges, commercial applications, and ecological impacts of rubber production and plantation expansion. Furthermore, the study combines high-resolution deforestation attribution (Sentinel-2/Landsat), Eddy-Covariance (EC) comparisons of plantations and nearby tropical forests, and models that include a rubber-specific Plant Functional Type (PFT). In addition, conversion from forest to rubber consistently simplifies habitats, decreases species richness and functional diversity, reduces ecosystem carbon storage, raises peak flows and sediment export, and lowers baseflow. Conversely, replacing annual cropland can increase above-ground biomass and provide partial carbon gains. As such, results depend systematically on prior land use, monsoon intensity and rainfall patterns, elevation, and management practices (monoculture versus diversified agroforestry). The study recommends directing new planting onto already cleared land through spatial planning and reliable traceability; adopting diversified rubber agroforestry and soil- and water-conserving methods. This includes explicitly integrating rubber within zero-deforestation policies and results-based carbon payments. In line with this, rubber-specific modelling and open flux datasets should support climate-risk assessments and monitoring. Overall, focused governance and agroforestry strategies can balance ecological trade-offs while maintaining production, aligning natural-rubber supply with verifiable climate and biodiversity safeguards.
Identification and characterization of peat soils using a physiographic approach at semi-detailed scale: a case study in Bangka Belitung Islands Province, Indonesia Sukarman Sukarman; Yiyi Sulaeman; Edi Yatno; Rachmat Abdul Gani; Budiman Minasny
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 21, No 2 (2024): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v21i2.87573

Abstract

Understanding peatland coverage and characteristics is essential for improved utilization and conservation efforts. Peatlands in Bangka Belitung Islands, Sumatra, are under threat of illegal mining activities. Creating detailed maps is challenging in Indonesia amid low accessibility, yet the physiographic approach provides an alternative strategy in peatland map provision. This research aims to update peat data in the Bangka Belitung Islands Province, create peat soil maps at a scale of 1:50,000, and estimate peat soil carbon stocks. This research started with a base map using a 1:50,000 scale, surveyed and sampled the soil on transects perpendicular to the river, analyzed the samples in the laboratory, and created a peat soil map. Compared with the existing map, the new map improves land unit attributes and peat characteristics as well as improves delineation results. Results show that peat soils cover 24,311 hectares, mostly distributed in Central Bangka and South Bangka Regencies, with depths varying between 50 to < 300 cm. Shallow peats dominate with an area of 13,668 hectares (56.22%). The estimated carbon stock contained in peat is 11.6 million tons C. The peat soils are Organosol Saprik, Organosol Hemik, and Organosol Sulfidik. The soils are acidic with low exchangeable cations and base saturation. The study highlights that deep peat soils under bushes and shrubs should be conserved for forests or reforested. Detailed spatial information on peatlands is useful for policymakers related to local peat soils planning and management.
Vermicomposting for climate change mitigation and sustainable soil health: Organic waste management, nitrogen use efficiency, and ecosystem services Rajan Bhatt; Vishnu D. Rajput; Mandapelli Sharath Chandra; Debjyoti Majumder; Ashok K. Garg; Govindaraj Kamalam Dinesh; Amarinder Singh Riar; Kunal Bhatt; Krishan K Verma; Mauro Wagner de Oliveira; Vicky Anand; Olga Biryukova
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 22, No 2 (2025): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v22i2.108669

Abstract

Environmental and agricultural systems are under constant threat from the ever-increasing amounts of eco-agricultural waste, which is the primary focus of this review. By utilizing scientific and environmentally friendly techniques to reuse and recycle organic waste, proper management can help reduce waste. This analysis assessed the potential of earthworm species in agriculture and the role of vermicompost in the long-term recycling of crop nutrients, specifically nitrogen (N) recovery, which is at 76%. Sustainable organic farming relies on a scientific understanding of organic material management and nitrogen use efficiency through the application of vermicompost. The emphasis is on reusing and recovering nutrients from vermicompost at carbon-to-nitrogen ratios of 10 - 23, which reduces emissions of reactive nitrogen gases, achieves soil fertility, and allows the application of fertilizers made from sustainable sources. Vermicompost improves the soil’s properties and mitigates the adverse effects of global warming. Based on literature reviews and numerous trials, a proposal has been put forth to emphasize the importance of vermicomposting technology in agroecosystems. Reducing pollution, improving waste management, and lowering health hazards are all significant issues that could play an important role. In conclusion, vermicompost is a win-win technology for sustaining today’s agricultural system. It enhances soil properties, increases land productivity, and reduces greenhouse gas emissions by decreasing chemical fertilizers.
Sustainable wheat subspecies mixtures production by evaluating morphological traits and stability analysis of different varieties in different environments in Jordan Amal Al Khatib; Nawal Al Hajaj; Yahya Bani Khalaf; Shihnaz Bsharat; Yansi Khasawneh; Mahmoud Al Hwayan; Ahamed Albatainah; Awad Al-Ka'abnh; Abdel Razzaq Al Tawaha; Maisaa Haddadin; Arun Karnwal
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 22, No 1 (2025): June
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v22i1.91865

Abstract

Climate change and water scarcity present significant challenges to food security in arid and semi-arid regions, such as Jordan. Grains—particularly wheat—are essential for nutrition and national food security. This study addresses sustainable wheat production strategies under semi-arid conditions, focusing on the utilization of morphological characteristics through targeted breeding programs. Assessing genetic diversity is a critical prerequisite for evaluating population adaptation to novel environmental conditions. This study aimed to evaluate the morphological traits and yield stability of seven certified wheat (Triticum aestivum L.) varieties—ACSAD65, Ammoun, Cham1, Dair Alla6, Hourani, Mixture, and Um Qais—across three contrasting environments at Maru, Mushager, and Rabbah. These sites represent diverse agro-ecological zones within the semi-arid landscape of Jordan. The experiment was conducted using a randomized complete block design (RCBD) in a 3×7 factorial split-plot arrangement, where the three locations served as main plots and the wheat varieties as subplots. Results indicated that both location and growing season significantly affected yield and its components. The variety Um Qais exhibited the highest grain yield, while the mixture showed poor performance. Among the locations, Maru demonstrated superior performance in terms of biological yield, grain yield, straw yield, and harvest index, followed by Mushager and Rabbah. According to GGE biplot analysis, Um Qais emerged as the ideal genotype for grain yield, achieving the highest mean performance across all locations. These findings offer valuable insights for policymakers, agricultural researchers, and farmers by identifying high-yielding and stable wheat varieties that are adapted to local semi-arid environments.
Enhancing soil carbon stocks and soybean yields in coastal areas through the application of biofertilizers Yudhi Harini Bertham; Kartika Utami; Elsa Lolita Putri; Zainal Arifin; Khairun Nisa Kamarudin
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 22, No 1 (2025): June
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v22i1.95531

Abstract

Climate change driven by increased concentration of greenhouse gases in the atmosphere has a significant impact on agricultural systems, particularly in coastal areas that are prone to rising salinity and decreased soil quality. The application of biofertilizers as a strategy for enhancing soil carbon stocks is crucial, given their role in promoting microbial activity and nutrient availability, leading to soil fertility. This study aimed to evaluate the role of biofertilizers in increasing soil carbon stocks and soybean yields in coastal areas. The research was conducted from April to December 2024 in Bengkulu City. The field experiment was designed in a split-plot design, with the main plot was soybean varieties at two levels (i.e., Anjasmoro and Dering I), and the subplot was fertilizer inputs at four levels (i.e., recommended inorganic fertilizer, AMF + Bradyrhizobium + potassium solvent, Bradyrhizobium + phosphate solvent + potassium solvent, and Bioenzyme). The application of biofertilizers and bioenzymes effectively increased soil carbon stock. The potassium-solubilizing microbial population had a greater influence on carbon stocks than the phosphate-solubilizing population and AMF. The use of biofertilizers and bioenzymes also improved soil biological properties and nutrient absorption, thereby contributing to increase soybean yields. This study provides evidence to support government policies promoting biofertilizer use in agriculture, including training and extension programs for farmers, particularly in coastal areas, to improve soil quality, enhance yields, and reduce dependence on chemical fertilizers which are often expensive and can degrade soil quality in the long term.
Temporal variation in the soil properties and rice yield of organic rice farming in the tropical monsoon region, Indonesia Syamsiyah, Jauhari; Ariyanto, Dwi Priyo; Komariah, Komariah; Herawati, Aktavia; Dwisetio, Pertiwi Kurnia; Sari, Safira Indrias; Salsabila, Harjayanti Auliyaa; Herdiansyah, Ganjar; Hartati, Sri; Mujiyo, Mujiyo
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 20, No 2 (2023): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v20i2.71431

Abstract

One of the organic farming goals is improving soil properties to support sustainable rice production. This study investigated the soil properties and rice yields under temporal variation of organic rice fields. Soil sampling was conducted in organic rice fields with three temporal variations, namely 0, 4, 7, and 10 years in a tropical monsoon region in Central Java, Indonesia. Variables observed included soil organic carbon, soil carbon stock, soil microbes population, dissolved organic carbon, soil liquid limit, soil sticky limit, soil plasticity limit, soil color changing limit, soil friability, soil porosity, soil total nitrogen, soil total phosphorus, soil available sulfur, exchangeable calcium, cation exchange capacity, total potassium, bulk density, base saturation, exchangeable sodium, exchangeable potassium, and rice yield.  This study confirms that soil organic carbon increased by 51.63% within 10 years (from 1.84% to 2.79%). Organic farming also improved all the physical, chemical, and biological soil properties, by the increase of soil organic carbon. However, soil organic carbon is mostly determined by soil cation exchange capacity, soil total phosphorus, and soil porosity. The mechanism of rice yield increase in organic rice farming is not affected by soil organic carbon directly but through the synergic increase in soil total nitrogen. The 1% increase of soil organic carbon increases 0.065% of soil total nitrogen hence rice yield increases by 1.66 tons ha-1. This study supports sustainable agriculture by providing evidence of improved soil properties under organic farming.

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