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All Journal Vegetalika Jurnal Ilmu Pertanian Journal of Tropical Soils Journal of Degraded and Mining Lands Management agriTECH Planta Tropika Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) SAINS TANAH - Journal of Soil Science and Agroclimatology jurnal Ilmu Pertanian (Agricultural Science) Journal of Smart Agriculture and Environmental Technology
Sri Nuryani Hidayah Utami
Department Of Soil Science, Faculty Of Agriculture Universitas Gadjah Mada Jln. Flora No. 1, Bulaksumur, Sleman, Yogyakarta 55281, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Environmental Science Veterinary

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Distribution of soil morphology and physicochemical properties to assess the evaluation of soil fertility status using soil fertility capability classification in North Galela, Indonesia Tri Mulya Hartati; Bambang Hendro Sunarminto; Sri Nuryani Hidayah Utami; Benito Heru Purwanto; Makruf Nurudin; Krishna Aji
Journal of Degraded and Mining Lands Management Vol 10, No 3 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2023.103.4405

Abstract

One of the indicators of land productivity assessment is soil fertility. The causes of infertile soil have been widely reported. This study aimed to evaluate soil fertility using the Soil Fertility Capability Classification (SFCC) approach and to determine the relationship between soil morphological and physiochemical properties and soil fertility. The research was conducted in North Galela Sub-district, North Halmahera Regency. The research framework began with the interpretation of thematic maps, surveys, field observations, and the making of soil fertility evaluation maps. Soil sampling was carried out based on the stratified random sampling method and supported by laboratory measurements according to USDA international standards. The research result showed that the research area had 14 soil fertility statuses. The fertility classes having the most significant limiting factor were loamy texture (Ø<0.002 mm), rock surface, gravel subsoil, moderate salinity (0.2-0.4 mS cm-1), low exchangeable K (<20 cmol(+) kg-1), and sloping slope (8%) with Lithic Haprendolls type and loamy texture (Ø<0.002 mm), subsoil >15% rock outcrop, moderate salinity (0.2-0,4 mS cm-1), Na saturation >15%, and a rather steep slope (14%) with Lithic Eutrudepts type. Both of these classes have a top layer texture, and the bottom layer contains clay <35%, with limiting factors of hard layer inhibiting root to a depth of 50 cm, extremely low nutrient reserve, low electrical conductivity (EC) and high Na. The limiting factors found in North Galela Sub-district were hard root-restricting layer, exchangeable K, electrical conductivity, Na saturation, slope, and gravel.
Weeding Frequencies Improve Soil Available Nitrogen in Organic Paddy Field Maimunah, Margi Asih; Kautsar, Valensi; Bimantara, Putu Oki; Kimani, Samuel Munyaka; Utami, Asih Indah; Sabri, Riza Kurnia; Tawaraya, Keitaro; Utami, Sri Nuryani Hidayah; Purwanto, Benito Heru; Cheng, Weiguo
PLANTA TROPIKA Vol 10, No 1 (2022)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v10i1.12707

Abstract

Appropriate weeds control is needed against weeds constraints in field, especially the organic field. With the appropriate management, weeding would benefit the organic field not only in reducing weeds but also in increasing nitrogen (N) availability in organic rice fields. This research aims to observe soil available N changes affected by weeding frequencies in organic paddy fields. Treatments applied were five weeding frequencies (WF) such as 0 WF, 2 WF, 4 WF, 6 WF, and 8 WF, to study the effect of various weeding frequencies on soil total N and available N ( NH4+ and NO3–) in the organic rice field. The soil in the conventional field was analyzed as a comparison to organic field soil. The results showed that soil C and N contents are similar in all treatments. Meanwhile, 6 WF performed the highest soil  NH4+ among organic plots (10.36 mg N kg–1) and 8 WF enhanced soil NO3– to the highest average among all plots (10.12 mg N kg–1). The treatment of 6 WF and 8 WF also maintain the increase of soil  NH4+ to 51 days after transplanting (DAT), meanwhile 0 WF, 2 WF, and 4 WF decreased after 40 DAT. Water samples from fields inlet-outlet and river showed that  NH4+ content found in water sample was higher than NO3–. We concluded that the more frequencies of weeding applied to organic fields potentially preserved soil inorganic N longer, which is very important in supporting rice growth. 
Sawah Surjan Environmental Management for Food Crop Diversification in Kulon Progo of Yogyakarta, Indonesia Utami, Sri Nuryani Hidayah; Hermania, Pradysta Maya; Purwanto, Benito Heru
Journal of Smart Agriculture and Environmental Technology Vol. 1 No. 2 (2023): August 2023: Published, 2023-08-03
Publisher : Indonesian Soil Science Society of South Sumatra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60105/josaet.2023.1.2.49-58

Abstract

The utilization of wetlands as agricultural land requires specific processing techniques, which are relatively expensive and unaffordable for local farmers. The optimization of wetlands as agricultural land by local farmers is usually made by elevating a certain part using the adjacent soil material known as Surjan system. The land management using Surjan system increases the diversity of agricultural products and deals with inundation problems. However, its environmental impact has not been widely studied. The research was conducted by observing the land with Surjan system in Kulonprogo area to determine its characteristics. Interviews with farmers were conducted to determine land management techniques. Soil and gas emissions samples were taken based on the age of the crop. The characteristics of land with Surjan system and conventional rice field were then compared to determine the difference, and the implications of the two agricultural lands on the environment are discussed. Surjan system can increase land productivity, and it can be adopted easily by farmers in other areas with inundation problems. This system is a planting system consisting of mound (the raised beds) and tabukan (the sunken beds that remain inundated). The mound part can be planted with secondary crops, horticulture, and other dryland crops, while the tabukan part can be planted with rice and used for mina padi (rice-fish) farming system. Surjan system provides benefits for environmental management through the prevention of floods and eutrophication, as well as reduction of greenhouse gas emissions in the atmosphere. Land management through Surjan system affects soil pH, redox potential, and organic matter. Land with Surjan system produces lower methane gas emissions than conventional rice fields. It produces methane gas of 4.06 - 45.73 µg / m2 / minute, with soil pH, redox potential, and organic matter of 6.65 - 7.69, (-) 49 - 10 mV, and 1.28 - 3.59%, respectively
Sifat Fisik, Kimia dan FTIR Spektrofotometri Gambut Hidrofobik Kalimantan Tengah Utami, Sri Nuryani Hidayah; Maas, Azwar; Radjagukguk, Bostang; Purwanto, Benito Heru
JOURNAL OF TROPICAL SOILS Vol. 14 No. 2: May 2009
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2009.v14i2.159-166

Abstract

Nature on Soil Phisical, Chemical and Ftir Spectrophotometry of Hydrophobic Peat From Central Kalimantan (S.N.H. Utami, A. Maas, B. Radjagukguk, and B.H. Purwanto): Peat soils naturally have hydrophilic or water-loving character with highly capable of exchanging the cations and cycling the nutrients from the vegetations. This water-loving character is altered to water-repellent character in hydrophobic peat soils. This research was aimed to observe deeply the functional bunch carrier of hydrophobic and hydrophilic peat soils as shown by FTIR spectra in relation with inherent chemical and physical properties of the soils. Five peat soils consisted of two native and artificial hydrophobic peat soils and one sample of hydrophilic peat soils were studied. Artificial hydrophobic peat soils were yielded by oven-drying the native hydrophobic peat soils at 50 oC for 10 hours. FTIR spectra can distinguish the functional bunch carrier of hydrophobic and hydrophilic peat soils. FTIR spectra of hydrophobic peat soils showed degradation of hydrophilic bunch carrier (¾OH and ¾COOH) and increase of the hydrophobic bunch carrier (tying aromatic from esther and ether). Chemical analysis  of the hydrophobic peat soils also indicated the decrease of ¾OH and ¾COOH content, decrease of CEC , soil total acidity and soil moisture content.
Co-Authors Agus Dwi Nugroho Agus Dwi Nugroho, Agus Dwi Aji, Krishna Amri Amanah Angga Ade Sahfitra Arifiyatun, Latifah Azwar Ma&#039;as Azwar Maas Azwar Maas Azwar Maas Azwar Maas Azwar Ma’as Azwar Ma’as Bambang Hendro Sunarminto Bambang Hendro Sunarmito BASUKI BASUKI Bayu Dwi Apri Nugroho Benito Heru Purwanto Bimantara, Putu Oki Bostang Radjagukguk Bostang Radjagukguk Cahyo Wulandari Cahyo Wulandari Dian Syafitri Ompusunggu Diannastiti, Fani Aulia Didik Indradewa Djaka Marwasta Eka Widiawati Wijaya Kusuma Eko Hanudin Eko Hanudin Eko Hanudin Eko Hanudin Eni Maftuah Ganang Rudianto Hanifah Albana Nur Adhini Heri Soegianto Heri Wahyudi Hermania, Pradysta Maya Husnain Husnain Ircham Riyadi JAKA WIDADA Keitaro Tawaraya Khairatun Napisah Kimani, Samuel Munyaka Kusumawardani, Patria Novita Laeli Nurrokhmah Lilis Suryani Maas, Azwar Maimunah, Margi Asih Makruf Nuruddin Makruf Nurudin Makruf Nurudin Makruf Nurudin Muhammad Agung Al Huda R. Sapto Hendri Boedi Soesatyo Rofita Rofita Sabri, Riza Kurnia Sahfitra, Angga Ade Suriyanti Ahmad Tri Mulya Hartati Tri Septijono Ulfaizah Ulfaizah Utami, Asih Indah Valensi Kautsar, Valensi Wahida Annisa Yusuf Wahida Annisa Yusuf Wan Tarmizi Weiguo Cheng, Weiguo Yunri Yuslianti