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All Journal Indonesian Journal of Geography AGRIVITA, Journal of Agricultural Science Planta Tropika REFLEKSI EDUKATIKA KREDO : Jurnal Ilmiah Bahasa dan Sastra SAINS TANAH - Journal of Soil Science and Agroclimatology Agrosains: Jurnal Penelitian Agronomi Indonesian Journal of Obstetrics and Gynecology (Majalah Obstetri dan Ginekologi Indonesia) Jurnal Kreativitas PKM PHILOSOPHICA Jurnal Bahasa, Sastra, dan Budaya Agrotechnology Research Journal Management Studies and Entrepreneurship Journal (MSEJ) SEMAR AgriHealth: Journal of Agri-food, Nutrition and Public Health Community Empowerment International Journal of Applied Finance and Business Studies Prosiding Konferensi Nasional PKM-CSR Jurnal Ilmiah Metansi (Manajemen dan Akuntansi) Agroindustrial Journal MEDIA RISET EKONOMI Journal of Smart Agriculture and Environmental Technology Jurnal Pertanian Agros
Suntoro Suntoro
Program Studi Ilmu Tanah, Fakultas Pertanian, Universitas Sebelam Maret, Surakarta
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary Other

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Effects of soil amendment from herbal and eucalyptus industrial waste on methane emission and rice yield Kurniawati, Feriana Dwi; Suntoro, Suntoro; Setyanto, Prihasto; Cahyani, Vita Ratri
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.v20i2.69297

Abstract

The use of chemical fertilizer in rice fields contributes to increased global warming via enhanced emission of methane (CH4) into the atmosphere. Therefore, composting has been proposed to reduce methane emissions in the agricultural field. This study aimed to determine the CH4 emission and rice yield affected by compost from three different types of compost: herbal compost, eucalyptus compost, and manure compost. This randomized block design study was conducted from November 2019 to May 2020. There were 8 fertilizer treatments applied to the rice fields, namely: herbal compost 10 tons/ha. (O1), eucalyptus compost 10 tons/ha (O2), manure compost 10 tons/ha (O3), no compost no chemical fertilizer (as a control) (O4), herbal compost 5 tons/ha + chemical fertilizer/CF (C1), eucalyptus compost 5 tons/ha + CF (C2), manure compost 5 tons/ha + CF (C3), and only chemical fertilizer (C4), then all treatments replicated three times. For the chemical fertilizer (CF) the dose is 166 kg/ha urea + 166 kg/ha ZA + 330 kg/ha TSP. The result indicated that the compost manure 10 tons/ha (O3) and the combination compost manure 5 tons/ha + CF (C3) produced the highest rice yields (6.89 -6.94 tons/ha) but impacted the highest methane emissions (505.3 – 544.6 Kg.CH4 /ha/season). The important finding showed that among all the treatments, a combination of compost eucalyptus 5 tons/ha + CF (C2) and compost eucalyptus 10 tons/ha (O2) mitigated methane emission to the lowest level (296.6 -305.2 Kg.CH4/ha/season) and gave high rice yields (6.77-6.78 tons/ha) that were not significantly different from those of compost manure (O3 and C3). In addition, the combination of compost herbal 5 tons/ha and chemical fertilizer (C1) affected the lower methane emissions than manure compost and gave a high level of grain yield that was not significantly different from those of manure compost (O3 and C3) and eucalyptus compost (O2 and C2). 
Peat hydraulic properties along the gradient of oil palm ages in the tropical monsoon region Dharmawati, Nuraeni Dwi; Komariah, Komariah; Suntoro, Suntoro; Hermantoro, Hermantoro; Hossan, Azmal
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.v22i2.105943

Abstract

The conversion of vast peatland areas to oil palm plantations in Indonesia may alter hydrological functions under long-term agricultural use. This study aimed to analyze the hydraulic properties of peat soil under oil palm (Elaeis guineensis Jacq.) plantations of varying ages (2–5, 6–9, and >10 years) in Ketapang, West Kalimantan, Indonesia, a region with a tropical monsoon climate. There are 27 samples gathered from 3 plantation ages in the 3 peat depths (0-20 cm, 20-40 cm, and 40-60 cm). Hydraulic properties: water holding capacity (WHC), bulk density, particle density, and porosity were analyzed using standard gravimetric, pycnometer, and oven-drying methods. Weather and environmental data from 2013–2022 were used to calculate reference evapotranspiration (ETo), crop evapotranspiration (ETc), and water balance. The results showed that hydraulic properties improved with soil depth and plantation age. WHC ranged from 400% to 850%, increasing significantly in mature plantations. Bulk density declined with depth and age, while porosity significantly increased and reached its maximum at 56.87% in older plantations. Although mature oil palms have high crop water demands (ETc), water availability remains sufficient to meet their needs. However, excess water must be properly managed to avoid reducing oil palm productivity and to preserve peat quality. These findings suggest that as oil palm matures, root development and organic residue accumulation enhance peat’s hydrological properties. This study may contribute to understanding peatland behavior under oil palm cultivation and provide crucial insight for improving irrigation and land management practices in tropical peat ecosystems.
Nutrient status and soil fertility index as a basis for sustainable rice field management in Madiun Regency, Indonesia Suntoro, Suntoro; Herdiansyah, Ganjar; Mujiyo, Mujiyo
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.v21i1.73845

Abstract

Agricultural development, specifically for crops, contributes significantly to national development. However, problems with water and low soil fertility are obstacles to this development. This study evaluated the nutritional status and soil fertility index as the basis for determining the direction of rice field management in Madiun Regency, East Java, Indonesia. The research method was conducted by surveying the soil characteristics followed by laboratory analysis. Soil samples were collected using stratified proportional sampling from 19 land units with 31 samples. The soil fertility index was determined using a principal component analysis test and calculated by dividing the weights by the minimum soil fertility index indicators. The study results show that the nutritional status of total N in the study area is low to high (0.13%–0.59%) and total P is very low to very high (12.18–73.66 ppm), whereas the status of exchangeable K is very low to very high (0.01–0.67 cmol.kg−1), Cation Exchange Capacity is low to high (12.8–36.0 cmol.kg−1), and organic carbon is low to very high (1.98%–6.54%). The soil fertility index ranges from medium to extremely high. The influential indicators are total P, total N, exchangeable K, and organic carbon. It is recommended that the rice field management system implement a “sustainable agricultural intensification” system that combines the two systems “intensification” and “sustainable agroecosystem.” This system still uses proportional inorganic and organic fertilizers (manure, compost, and agricultural waste).
Rainfall, drought, and irrigation in relation to crop patterns in the volcanic topo sequence of Central Java, Indonesia Sumani, Sumani; Komariah, Komariah; Suntoro, Suntoro; Mujiyo, Mujiyo; Ullah, Hayat
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.v22i1.87786

Abstract

The uncertainty in precipitation patterns resulting from climate change may contribute to uncertainties in the growing seasons and productivity of rice and other agricultural commodities. This study aimed to examine the changes in precipitation and cropping patterns across various topographic sequences of volcanic regions in Central Java, Indonesia. Precipitation data from 33 rainfall stations across three topographic sequences (0-400 meters, 400-700 meters, and above 700 meters above sea level, categorized as high, mid, and lowlands, respectively) were analyzed to understand cropping patterns using both quantitative and qualitative methods. The findings revealed that farmers' actual cropping patterns were not primarily influenced by precipitation levels but rather by soil suitability. Moreover, the frequency of drought occurrences, as indicated by the Standardized Precipitation Index (SPI), did not significantly impact cropping patterns or crop yields. Instead, agricultural yields were found to be dependent on irrigation infrastructure rather than precipitation levels. This study sheds light on the importance of adaptation and mitigation strategies to address the adverse impacts of climate change on agricultural management across different topographic sequences.
Effect of Inorganic Fertilization Methods on Growth and Yield of Soybean on Alfisol Cahyono, Ongko; Suntoro, Suntoro; Maro'ah, Siti; Putri, Silfi Berliana; Wihangga, Juan Yherin
Agrosains : Jurnal Penelitian Agronomi Vol 27, No 2 (2025): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agsjpa.v27i2.109325

Abstract

The ever-increasing demand for soybeans has not been matched by increased yields. This is partly due to farmers not fertilizing properly. Many farmers apply urea, SP36, KCl, or compound NPK fertilizers at doses that are inappropriate for the plants' needs. Many even fertilize haphazardly. Appropriate fertilization methods are needed. This study aims to determine the effect of some of fertilization methods on soybean growth and yield on Alfisol. This study used a completely randomized block design (RCBD) with five treatments and five replications. PT0 (no fertilizer), PT1 (Farmer's Method: Urea, SP36, and KCl), PT2 (Balanced Fertilization Method: Urea, SP36, and KCl), PT3 (Farmer's Method: NPK Compound Fertilizer), PT4 (Balanced Fertilization Method: NPK Compound Fertilizer). The results of this study show that inorganic fertilizers given in a balanced manner can increase soybean yields from 2.28 g/plant to 13.82 g/plant. The results of this study indicate that the best treatment method, PT2 (Balanced Fertilization Method: Urea, SP36, and KCl), is able to support plant growth and increase soybean yields.
Development of an IoT-Based Device for Real-Time Detection of Soil NPK Nutrient Content to Optimize Soybean Yields Perdana, Doan; Cahyono, Ongko; Suntoro, Suntoro
Agrotechnology Research Journal Vol 8, No 2 (2024): Agrotechnology Research Jurnal
Publisher : Perkumpulan Agroteknologi/Agroekoteknologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agrotechresj.v8i2.98098

Abstract

The optimal growth of soybean plants is critically dependent on the availability of essential nutrients in the soil, particularly nitrogen (N), phosphorus (P), and potassium (K). Plants achieve optimal growth when nutrient levels exceed deficiency thresholds. A significant challenge in soybean cultivation at the farmer level is the precise determination of fertilizer dosage and timing of application. This study presents an Internet of Things (IoT)-based device for the real-time detection of NPK nutrient content in soil, aimed at enhancing soybean yields. The device enables timely and accurate nutrient application, minimizing the soil's residual fertilizer risk, which can lead to environmental pollution and decreased land productivity. Field experiments were conducted to evaluate NPK fertilization methods on soybean crops in two distinct soil types, namely Vertisol and Entisol. The methodology involved comparing local farmers' fertilization practices with the recommendations derived from the NPK detection device. Results illustrated a significant increase in soybean yields when fertilization was performed according to the device's recommendations, yielding an increase from 1.2 to 1.79 t.ha-1 on Vertisol soil and from 1.75 to 2.57 t.ha-1 on Entisol soil.
Pengaruh Biochar Sekam Padi dan Macam Pupuk terhadap Pertumbuhan dan Serapan P Padi Widijanto, Hery; Rissanti, Siti Ramadhani Nur; Suntoro, Suntoro; Syamsiyah, Jauhari
Agrotechnology Research Journal Vol 7, No 2 (2023): Agrotechnology Research Jurnal
Publisher : Perkumpulan Agroteknologi/Agroekoteknologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agrotechresj.v7i2.77295

Abstract

Inceptisol soil has an acidic pH, low organic content, and low P elements. Biochar and other types of fertilizers are needed to improve soil fertility. This research was conducted to determine the effect of the best dose of biochar and the kind of fertilizer on rice plants' growth and P uptake. There were 16 treatments with 3 repetitions. The dosage of rice husk biochar consists of doses of 0 t.ha-1 (B0), 5 t.ha-1 (B1), 10 t.ha-1 (B2), and 20 t.ha-1 (B3). Types of fertilizer consist of 0 t.ha-1 (P0), 4 t.ha-1 manure (P1), 50% urea + 50% NPK fertilizer + 2 t.ha-1 manure (P2), and 100% urea + 100% NPK fertilizer (P3). Parameters observed were available P, P tissue, P uptake, plant height, number of tillers, and dry weight brazier. Data analysis was performed with the ANOVA, DMRT, and Correlation tests. The result showed the dosage of rice husk biochar and the type of fertilizer affected the yield of rice plant height, number of rice tillers, stover dry weight, and P uptake. P3 treatment produced the highest plant height, which was 104,68 cm. The B3 and P3 treatments produced the highest of rice tillers. The B3P3 interaction treatment resulted in the highest root tissue absorption of 1,93 g.clamp-1 and 3,49. clamp-1 in the mature.
Climate Change Camp: Metode Peningkatan Kesadaran Generasi Muda dalam Beradaptasi dan Memitigasi Perubahan Iklim Syamsiyah, Jauhari; Suntoro, Suntoro; Komariah, Komariah; Novarinda, Silvia
SEMAR (Jurnal Ilmu Pengetahuan, Teknologi, dan Seni bagi Masyarakat) Vol 13, No 1 (2024): Mei
Publisher : LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/semar.v13i1.80200

Abstract

Perubahan iklim menjadi kekhawatiran masyarakat di seluruh dunia selama bertahun-tahun. Kepedulian terhadap lingkungan dan kesadaran mengendalikan perubahan iklim perlu dilakukan oleh semua kalangan masyarakat. Generasi muda, khususnya siswa tingkat SMA/K adalah kalangan yang dirasa paling tepat dijadikan sebagai agen pengendali perubahan iklim. Pendidikan dan peningkatan pemahaman terkait adaptasi dan mitigasi perubahan iklim kepada generasi muda dirasa akan lebih efektif jika dilakukan dengan cara yang unik dan menyenangkan. Climate Change Camp adalah kegiatan camping yang berisi serangkaian acara dengan tujuan utama penyampaian materi, didukung dengan alat peraga pendidikan, serta dikemas dengan kegiatan lain seperti malam keakraban, games, dan olahraga. Hasilnya menunjukkan bahwa penyampaian materi dengan metode ini dapat meningkatkan pemahaman dan kesadaran akan perubahan iklim dan pemanasan global, serta siswa paham apa yang harus mereka lakukan untuk beradaptasi dan memitigasi terjadinya perubahan iklim. Target capaian mencapai mencapai 96% dalam memahami pengertian dan perbedaan perubahan iklim dan pemanasan global, 100% dalam memahami jenis-jenis kegiatan yang mendorong terjadinya pemanasan global, 93% dalam meningkatkan kesadaran akan bahaya dan dampak pemanasan global, serta 93% dalam memahami tindakan yang harus dilakukan untuk meningkatkan kesadaran masyarakat terhadap perubahan iklim. Climate Change Camp dapat dijadikan salah satu metode pembentukan generasi muda sebagai bagian dari agen pengendalian perubahan iklim..  Climate change has been a concern for people around the world for years. Concern for the environment and awareness of controlling climate change needs to be carried out by all levels of society. The younger generation, especially senior high school level students, are the people who are deemed most appropriate to act as agents to control climate change. It is felt that education and increasing understanding regarding climate change adaptation and mitigation for the younger generation will be more effective if done in a unique and fun way. Climate Change Camp is a camping activity that contains a series of events with the main aim of delivering material, supported by educational props, and packaged with other activities such as social evenings, games and sports. The results show that delivering material using this method can increase understanding and awareness of climate change and global warming, and students understand what they must do to adapt and mitigate climate change. The target achievement is to reach 95% in understanding the meaning and differences between climate change and global warming, 96% in understanding the types of activities that encourage global warming, 93% in increasing awareness of the dangers and impacts of global warming, and 93% in understanding the actions taken must be done to increase public awareness of climate change. Climate Change Camp can be used as a method of forming the younger generation as part of climate change control agents.
Effect of Sugarcane Bagasse Bio-Compost and Manure on Carbon Fraction and N, P, K Content in Entisols and Their Relationship with Shallot Yields Wijaya, Lidya Zaela; Syamsiyah, Jauhari; Suntoro, Suntoro; Minardi, Slamet; Rahayu, Rahayu
AgriHealth: Journal of Agri-food, Nutrition and Public Health Vol 6, No 1 (2025): April
Publisher : Research and Development Center for Food, Nutrition and Public Health (P4GKM) LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agrihealth.v6i1.99420

Abstract

Bagasse, one of the largest agricultural wastes with suboptimal utilization, could improve Entisols in the tropics by enhancing soil fertility and crop productivity. This study aimed to determine the changes in humic substances and nutrient levels in Entisols and their effects on shallot yield. The study was designed using a completely randomized design, consisting of four treatments of organic matter combinations with NPK fertilizer, four single organic matter treatments, one standard NPK fertilizer dose, and one control. Each was replicated three times. The results showed that using bagasse improved soil conditions by increasing C content and nutrient levels in the soil, enhancing nutrient absorption by plants, and consequently boosting crop yields. The biochar + bagasse compost (2:4) (bio-compost) + NPK resulted in high soil organic C, humic acid, fulvic acid, nutrient availability, and plant nutrient levels, which were comparable to the manure treatment, and significantly increased shallot yield in Entisols. The findings of this study could support the development of nutrient management strategies utilizing bagasse as a potential soil amendment for Entisols.
Co-Authors Adipati Napoleon Ahmad Arif Darmawan AKTAVIA HERAWATI Andi Renata Ade Yudono Anggita, Akas Arkianti, Maria Maxmila Yoche Barus, Novita Susilawati Bolan, Nanthi Cahyono Ikhsan Catharina Guinda Diannita Danisworo, Conrad Dedik Budianta Dewi, Ira Dharmawati, Nuraeni Dwi Doan Perdana Engkus Kusnadi Eni, Eni Kusumawati Eva Chris Veronica Gultom Florensa, Maria Ayu Ganjar Herdiansyah, Ganjar Gultom, Eva Gusti Marliani Hardian, Tiara Hasanah, Khalyfah Hasibuan, Shinta Yuliana Heman Pailak Heman, Heman Hermantoro, Hermantoro Hery Widijanto Himawan Himawan Hossan, Azmal I Putu G Kayika Indah, Evanny Ingrit, Belet Lydia Irmawati, Viviana Istiqomah, Nanda Mei Jauhari Syamsiyah Joko Santoso Komariah Komariah Kurniawati, Feriana Dwi Manik, Marisa Maro'ah, Siti Marulianna Sitorus, Fiolenty Bertina Mawan, Mawan Mujiyo Mujiyo Novarinda, Silvia Nur’annafi Farni Syam Maella Olang, Janwar Ongko Cahyono Pangkey, Ballsy C. A. Panjaitan, Wynda Gerika Br Paula, Veronica Prabang Setyono PRIHASTO SETYANTO Puspitaningrum , Ita Putri Sihaloho, Shinta Marina Josephina Putri, Ega Yuana Putri, Silfi Berliana Rahayu Pristiwati Rahayu Rahayu Renova Sibuea Rissanti, Siti Ramadhani Nur Romadhon, Muhammad Rizky Rumambi, Magda Rustandi, Dodi Saputra, Bima Adi Sentot Budi Rahardjo septa lumbantoruan Siregar, Deborah Slamet Minardi Sri Dwiastuti Suarji, Muhammad Agung Subyantoro Sudadi Sudadi Sumani . Suwardi Suwardi Ullah, Hayat Vita Ratri Cahyani Widianto, Didik Sugeng Widyatmani Sih Dewi Wihangga, Juan Yherin Wijaya, Lidya Zaela Zega, Windy Zulaikha Zulaikha