- Plant Growth and Agriculture Techniques
- Agricultural Development and Management
- Flowering Plant Growth and Cultivation
- Clay minerals and soil interactions
- Soil and Land Suitability Analysis
- Greenhouse Technology and Climate Control
- Peatlands and Wetlands Ecology
- Geotechnical and construction materials studies
- Food and Agricultural Sciences
- Plant Physiology and Cultivation Studies
- Agricultural Science and Fertilization
- Agriculture and Agroindustry Studies
- Horticultural and Viticultural Research
- Composting and Vermicomposting Techniques
- Soil Carbon and Nitrogen Dynamics
- Plant Growth Enhancement Techniques
- Coastal wetland ecosystem dynamics
- Soil and Unsaturated Flow
- Geological and Geophysical Studies
- Fire effects on ecosystems
- Shallot Cultivation and Analysis
- Economic Growth and Fiscal Policies
- Cassava research and cyanide
- Phosphorus and nutrient management
- Phytase and its Applications
Universitas Gadjah Mada
2013-2023
Tanjungpura University
2017
ADA University
1995-2014
Graduate School Experimental Plant Sciences
1983
Abstract The needs of youth at-risk and their families, facing multiple problems serious mental health issues, exceed the expertise possibilities a single stakeholder (professional, organization, municipality). These youngsters require care in which different professionals organizations is integrated. However, combining various types to provide integrated challenging. Therefore, this qualitative study aims describe how stakeholders approach these challenges when for at-risk. In total, 28...
Soilless cultivation systems are common in Dutch greenhouse horticulture, i.e., less than 20% of the area is still soil grown. For long, it was assumed that these so-called closed emission nutrients and plant protection products (PPPs) close to zero. However, Water Boards have shown areas with soilless cultivations quality surface waters often far below standards for chemical ecological good water, as demanded by Framework Directive 2000/60/EC. In 2008 this lead an agreement between Grower’s...
Peatland wildfires, especially in tropical ecosystems, are often caused by drought, and lead to smoke other related problems all aspects of community life Indonesia, Central Kalimantan. Drought is worsened the number dry days season, known as El Niño phenomenon, drainage system a peatland. Additionally, drought decreases water table increases probability occurrence wildfires peatland areas. This study aims modify numerical formula factor ( DF t ) Keetch–Byram index (KBDI) based on wildfire...
This study was aimed to determine the effectiveness of several ameliorant formulas increase plant growth and NPK uptake on sweet corn (Zea mays L. var. saccharata) degraded peatlands. The research conducted in greenhouse Balittra during May July 2011. Sweet planted pot with soil taken from previously burnt peat Kalampangan, Palangkaraya. treatment consisted two factors, i.e., combination (A1=80% chicken manure + 20% dolomite, A2=80% agricultural weeds A3=80% mineral (Spodosol) A4=20%...
The main problem with coastal sandy soil is its low water and nutrient retention due to clay organic matter content. This study was aimed at improving the chemical properties buffering capacity of these soils by using ameliorants polymers. leaching experiment conducted two factors three replications. first factor a ameliorant (5% clay, whether from type Inceptisol (I) Vertisol (V)). second natural or synthetic polymer (tapioca 1% 2% (T1 T2), tapioca dregs (TD1 TD2), polyvinyl alcohol 0.1%...
Peat soils naturally have hydrophilic or waterloving character with highly capable of exchanging the cations and cycling nutrients from vegetations. This water-loving is altered to water-repellent in hydrophobic peat soils. research was aimed toobserve deeply functional bunch carrier as shown by FTIR spectra relation inherent chemical physical properties Five consisted two native andartificial one sample were studied. Artificial yielded oven-drying at 50 oC for 10 hours. can distinguish...
Stevia has several advantages including the level of sweetness that reaches 100-200 sugar cane and low calorie so it is safe to be consumed by diabetics obesity. The possibilities plants grow on soil properties fertility become an important issue in agricultural cultivation systems with treatment organic fertilizers will produce significant results research. experiments were arranged Completely Randomized Design (CRD) 3 various types factors: Alfisol (Al), Andisol (An) Vertisol (Ve) 2...
Abstract Naturally, peat soils are hydrophilic, which means they have high water holding capacity. However, due to land conversion, wildfires and clearing, natural condition of is disturbed so become hydrophobic. Under hydrophobic condition, loses its water-loving character; this irreversible because in anaerobic conditions, compounds will be degraded, causes carboxylate phenolic functional groups not functioning. It characterized by buoyancy when wet. To observe hydrophilic characters the...
The development of soybeans in coastal sand area besides using adaptive cultivars also requires the input organic matter to increase its productivity.One source material that has not been widely used is banana stem.The research aimed study: 1) characteristics stems bokashi and role improving growth yield some soybean cultivars, 2) Response at level stem sands.The a laboratory field experiment conducted for 6 months from October 2016 until March 2017.Pot experiments have done Samas sands,...
This study aims to determine the effect of lime and nitrogen fertilizer on soil acidities characters, growth uptake corn in total reclaimed potential acid sulphate soil. A pot experiment with a completely randomized design arranged factorial three replications was conducted Greenhouse Indonesian Swampland Agricultural Research Institute (ISARI) from August 2014 December 2015. The first factor rate as dolomite: (i) 25 t ha-1, (ii) 37.5 ha-1. second type fertilizer: (a) control (without N),...
The EU Water Framework Directive demands a sound ecological and chemical basis for ground surface waters. This has motivated the Dutch greenhouse industry to seek more sustainable water management procedures which will enable zero-emission of nutrients plant protection products (PPP) in year 2027. Although closed soilless growing systems are widely applied Netherlands, it appears that discharge varies between 5 40%. Discharge based on salinity is only minor part, up 15%. In rose cultivation,...
The tolerance of plants to waterlogging can be ascertained by identifying the characteristics morphology, anatomy, and physiology plants. As yet little is known about photosynthetic many cultivars maize in Indonesia when waterlogged at various stages growth. This research aimed determine photosynthesis some inundation that occurred different factorial completely randomized block design with two factors three replications was used. first factor consisted nine cultivars, i.e. Bisi 2, Pioneer...
Biochar is a pyrolysis product resulted from biomass burning in oxygen limited conditions and expected to serve as soil ameliorant.In this paper laboratory study was conducted using three types of biochar ( palm empty fruit bunches (tankos), rice husk peat Bengkalis). The aimed at identifying the characteristics each burned temperature 350oC with different time (3, 4 and5 hours). analysis lignin content showed that Bengkalis has higher (50.23%) followed by tankos (41.96%) (18.40%). results...
The study aimed to determine the effectiveness of P fertilization on soybean plants in coastal sands soil. Pot research field using complete randomized block design with four replications. Treatment factors include cultivars namely Anjasmoro, Demas 1, Gema, and Gepak Ijo; fertilizer dosage consisted 0, 36, 72, 108 kg P2O5 ha−1 or equivalent 100, 200, 300 SP36 ha−1. Data were analyzed variance analysis, continued Duncan's Multiple Range Test at 5% error level. results showed interaction all...
Numerous researches on landslides have been carried out by many researches. However, studies soil physical properties related to potential in volcanic area are still rare. The objective of this study was examine the effect potential. To collect sample, sampling method applied. type used residual soil. values clay liquid limit, plasticity index, water content, COLE index were measure Organic material as supporting data. results showed that command high value which exceeded 50%. Such level...
Abstract The use of acid sulfate soils for agricultural cultivation is constrained by due to the oxidation process pyrite (FeS), increasing solubility Al and Fe, which causes pH be more acidic. specific strategy needed utilize soil through calcification technology combined with in situ organic materials. This study used lime at dose determined incubation method materials from composted grey sedge plants, rice straw, cow dung. aim this was determine effect matter on improving chemical...
The EU Water Framework Directive demands a sound ecological and chemical quality for ground surface waters. Dutch greenhouse industry is on track towards sustainable water management with the aim of zero-emission nutrients plant protection products (PPP) in year 2027. Growth inhibition, especially rose cultivation, major reason discharge drain solution soilless growing systems. Previous research laboratory scale has shown benefits advanced oxidation process (here H2O2 + UV)) as treatment...
The purpose of this research was to determine: 1) phosphate bacteria (PB) mechanisms responsible for enhancing the soil’s soluble phosphorus (P), using processes inorganic P solubilisation, organic mineralization, and blocking soil colloidal adsorption site, 2) investigate factors contributing increase. Phosphate inoculated into sterile Andisols in three separate compositions, termed 1 kg P∙kg–1 (2.82 g rock, 0.5 Ca3(PO4)2, 0.4 Al3(PO4)2, or Fe3(PO4)2), (0.5 cm3 para-Nitrophenylphosphate...
Restoration has been carried out on several tropical peatland water systems in Indonesia. One of them held at ex-Mega Rice Project Area (EMRP) a million hectare block A, Sei Ahas Village, Mentangai, Kapuas District, Central Kalimantan. The method was used to create canal blocking locations which expected increase table level and repair degraded ecosystems. In this recent research, two cases D E had compared C condition without upstream Based 3 years field observations restoration process...
Land-use change and lack of conservation in Bogowonto Watershed area have caused land degradation due to erosion landslides. The rate can be measured through the morphological characteristics soil landscape. This study aimed identify relationship between area. research framework initiated from interpretation thematic maps, surveys field observations, verification using assessment software. Sample points were determined a stratified random sampling method. In general, is affected by slope,...