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| Registros recuperados: 13 | |
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| Restrepo,Adriana P; García García,José; Moral,Raúl; Vidal,Fernando; Pérez-Murcia,María D; Bustamante,María Á; Paredes,Concepción. |
| A.P. Restrepo, J. Garcia-Garcia, R. Moral, F. Vidal, M.D. Pérez-Murcia, M.A. Bustamante, and C. Paredes. 2013. A comparative cost analysis for using compost derived from anaerobic digestion as a peat substitute in a commercial plant nursery. Cien. Inv. Agr. 40(2): 253-264. The aim of this study was to evaluate the economic feasibility of using compost made from anaerobically digested cattle slurries in a commercial nursery. Using a comparative cost analysis, commercial peat substrate growing media has been partially substituted with increasing proportions of compost (25, 50 and 75% v/v of compost). This experiment was intended to establish the conditions under which the use of these composts is feasible and competitive relative to commercial peat, at both... |
| Tipo: Journal article |
Palavras-chave: Anaerobic digestion; Costs; Economics; Growing media; Peat; Seedling production. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000200002 |
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| Hernández Zarate, Lisbeth. |
| El aserrín y la corteza de pino, subproductos de la industria forestal, pueden ser usados como sustrato y sustituir a la turba en la producción de planta en viveros. Se evaluó el crecimiento de plántulas de Pinus montezumae Lamb. producidas en contenedor en mezclas de sustratos compuestas con corteza de pino y aserrín que formaron nueve mezclas y un tratamiento testigo (60% turba + 20% perlita + 20% vermiculita), a las que se le determinaron características físicas y químicas. El pH osciló entre 4.2 a 6.3 en los distintos tratamientos, la conductividad eléctrica de 0.25 a 3.98 dSm-1, la porosidad total de 69 a 81%, la porosidad de aireación de 26 a 34%, la porosidad de retención de humedad de 36 a 52% y la densidad aparente varió de 0.17 a 0.32 g.cm-3. En... |
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Palavras-chave: Forestal; Maestría; Pinus montezumae; Sawdus; Bark; Peat; Moss; Nursery; Aserrín; Corteza; Fertilización; Vivero. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/1967 |
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| Lao,MT; Jiménez,S. |
| Some technical and economic problems currently limit the use of substrates. The main problems include the lack of reciprocal adaptation of the cultivation technics and the substrate, the possible presence of pathogens, and the cost involved. To these we must add the ecological problems of the extraction areas, since there are no short-term renewable resources, especially in the case of peat, the classic substrate. This has motivated the search for substitutes, especially amongst indigenous materials and those easily obtained locally, such as cereals straw, rice husk and cork residues. The use of these substrates should be evaluated agronomically for: physical (total porosity, available water, air content, distribution of particles size, apparent density),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Substrate characterisation; Available water; Peat; Expanded clay. |
| Ano: 2004 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572004000100007 |
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| Lao,MT; Jiménez,S. |
| Some technical and economic problems currently limit the use of substrates. The main problems include the lack of reciprocal adaptation of the cultivation technics and the substrate,the possible presence of pathogens, and the cost involved. To these we must add the ecological problems of the extraction areas, since there are no short-term renewable resources, especially in peat, the classic substrate. This has motivated the search for substitutes, especially amongst indigenous materials and those easily obtainable locally, such straws cereals, rice husk and cork residuous. The use of these substrates should be evaluated agronomically for: physical, chemical and cultural properties. The characterisation and use of almond shell (Prunus dulcis) as a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Substrate; Mixture; Peat; Expanded clay. |
| Ano: 2004 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572004000100008 |
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| Flórez,Sandra Liliana; Lasprilla,Diego Miranda; Chaves,Bernardo; Fischer,Gerhard; Magnitskiy,Stsnislav. |
| The effects of 0, 30 and 60 mM NaCl and substrates (red peat, sand or 3:1:1 [w/w] mixture of peat, sand, or soil) on vegetative growth of lulo, an Andean fruit species, during 12 weeks were studied. The experiment was carried out by using 2000 cm³ of polypropylene plastic pots under greenhouse conditions. Plant height, number of leaves and nodes, leaf area, total plant dry matter (DM), and shoot/root ratio were evaluated. With the increase of salt concentration, the plant height, the number of leaves and nodes, the leaf areas and plant dry mass DM decreased, whereas shoot/root ratio increased. Sand grown lulo plants were most affected by salinity and presented total mortality at 60 mM NaCl. On the other hand, plants held either in peat or in substrate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lulo; Naranjilla; Salinity; NaCl; Plant height; Leaf area; Dry matter; Peat; Sand. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452008000200023 |
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| Denys, L.; Baeteman, C.. |
| Holocene age-depth data from the Belgian coastal plain, basal peat data particularly, are assessed in terms of local water and tide levels. Basal peat formation was generally induced by sea-level rise; effects of local seepage were limited and significant river-gradient effects were absent. No relation was found between the timing of basal peat inception and substrate permeability. In general, edaphic (moisture) conditions were unfavourable for organic accumulation prior to sea-level related rise of the groundwater table. Error envelopes for the minimum level of local mean high water spring tides and for upper and extreme lower relative mean sea-level limits during the last 9400 solar years (8400 yrs B.P.) are presented. These indicate that the rate of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Holocene; Marine geology; Peat; Sea level changes; Sedimentation. |
| Ano: 1995 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2960 |
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| Sumarga, Elham; School of Life Sciences and Technology, Institut Teknologi Bandung; elham@sith.itb.ac.id; Hein, Lars; Environmental System Analysis Group, Wageningen University; lars.hein@wur.nl; Hooijer, Aljosja; Deltares; Aljosja.Hooijer@deltares.nl; Vernimmen, Ronald; Deltares; Ronald.Vernimmen@deltares.nl. |
| Oil palm has increasingly been established on peatlands throughout Indonesia. One of the concerns is that the drainage required for cultivating oil palm in peatlands leads to soil subsidence, potentially increasing future flood risks. This study analyzes the hydrological and economic effects of oil palm production in a peat landscape in Central Kalimantan. We examine two land use scenarios, one involving conversion of the complete landscape including a large peat area to oil palm plantations, and another involving mixed land use including oil palm plantations, jelutung (jungle rubber; (Dyera spp.) plantations, and natural forest. The hydrological effect was analyzed through flood risk modeling using a high-resolution digital elevation model. For the... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Ecosystem services; Flood risk modeling; Indonesia; Jelutung; Oil palm; Peat. |
| Ano: 2016 |
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| Ali, Md. Rostom. |
| Peat is an unconsolidated deposit of semi-carbonized plant matter. Peat is usually found in water-saturated environments and has certainly high moisture content. Haors are peat-dominated areas in Bangladesh, which hold the largest peat reserves of the country. Peat is one of the most important mineral resources worldwide. For the utilization of peat similar to other countries, it is necessary to know its energy and fertility potential and develop a sustainable management strategy for peatlands in Bangladesh. This study mainly focused on the heating and fertility potentials of peat in Bangladesh and on strategies to sustainably manage these peatlands. This study was carried out in the haor-based Katiadi and Mohanganj upazilas in the Kishoreganj and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Haor; Peat; Heating potential; Organic fertilizer; Peatland management; Bangladesh. |
| Ano: 2020 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6017 |
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| Patrón Ibarra, José Cinco. |
| La turba, es un producto importado y caro, es el principal sustrato orgánico utilizado para la producción de tubérculos-semilla de papa en México. Sin embargo, existen sustratos orgánicos más baratos disponibles en todo el país. Por lo tanto, se llevaron a cabo dos experimentos para evaluar las propiedades físicas y químicas y probar la eficiencia agronómica de siete sustratos alternativos para la producción de tubérculos-semilla bajo condiciones de invernadero. La mezcla de control utilizado tradicionalmente por los productores, que consiste de 40% de fibra de coco, 40% de turba y perlita 20% (v/v) se comparó con otras seis mezclas, en sustitución de la turba: 1) serrín de pino, 2) cáscara de arroz, 3) compost de fibra de agave tequilero, 4) tamizado... |
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Palavras-chave: Tubérculo-semilla; Semilla prebásica; Solanum tuberosum; Turba; Invernadero; Minituber; Prebasic seed; Peat; Greenhouse; Edafología; Doctorado. |
| Ano: 2014 |
URL: http://hdl.handle.net/10521/2255 |
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| Grundling, P.L.. |
| Peatlands act as information traps; archives reflecting changes in climate and environment, through pollen assemblages, sediment facies, plant fibre and C14 dating. The investigation of Maputaland peatlands presents an ideal opportunity to understand these changes during the Late Pleistocene and Holocene. The Maputaland peatlands in South Africa could be geographically divided into two distribution areas based on age: The Holocene age peatlands northwards of the Mkuze River inflow into Lake St. Lucia and the Late Pleistocene age peatlands south of this inflow. The grouping of peat thicknesses versus peat ages in a scatter diagram indicates distribution deviations from the ideal accumulation line. These might represent periods of low or negative growth and... |
| Tipo: Report |
Palavras-chave: Peat; Sea level; Peatlands; Http://aims.fao.org/aos/agrovoc/c_13929. |
| Ano: 2004 |
URL: http://hdl.handle.net/1834/703 |
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| Filipová,Ladislava; Hédl,Radim; Covacevich C.,Nilo. |
| The wetland meadows and pastures (vegas) of the agricultural zone of the Magallanes Region and the Chilean Patagonia are productive and intensively exploited ecosystems. However, there is scarce data about the typology and the physical and chemical properties of the soils that determine the agricultural potential of vegas sites. Sampling of the main horizons of 47 soil profiles was conducted throughout the area. The profiles were described in the field and consequently classified according to the soil typology system of the WRB (IUSS Working Group WRB, 2006). Analyses of bulk and particle densities, capillary water capacity, pH (H2O), pH (CaCl2), texture, organic material, C:N ratio, electrical conductivity, effective cation exchange capacity, N, P,... |
| Tipo: Journal article |
Palavras-chave: Histosols; Fluvisols; Peat; Soil properties; Salinization; Soil degradation. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000200010 |
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| 谷, 昌幸; 佐藤, 貴之; 近藤, 錬三; Tani, Masayuki; Sato, Takayuki; Kondo, Renzo. |
| 泥炭からの土壌溶液の採取方法が土壌溶液の組成・特徴に及ぼす影響を4つの方法で比較検討した.対象とした泥炭地は,泥炭の分解度と理化学性が異なる霧多布泥炭地と湧洞沼泥炭地の2地点で,各地点において2×2mの方形区内の4カ所から泥炭および土壌溶液を採取した.減圧ポーラスカップ法(PC法),遠心分離法(CF法),振とう水抽出法(WE法),および泥炭地で一般的に用いられている泥炭を採掘した坑に湧出する水を採取する方法(PW法)の4つの溶液採取方法を用いた.1)各地点4カ所の泥炭の全炭素・窒素含量,繊維含量,腐植化度などの分解度指標および理化学性の変動係数は,おおむね20%以下であった.2)土壌溶液の水質および無機イオン濃度は4つの方法で大きく異なった.PC法,CF法,WE法で採取した土壌溶液は,泥炭の分解程度の違いによって水質が大きく変化することが示された.また,溶存有機物の光学的な特性も採水方法の違いにより異なった.3)PW法により採取した溶液のEC,溶存有機炭素濃度などの水質の変動係数は,両地点とも約20%以下であり,最もばらつきが少なかった.4)PC法,CF法およびWE法により採取した溶液の水質の変動係数は,泥炭の理化学性の変動係数を大きく上回る項目が多かった.また,これら3つの方法により採取した溶液の水質および無機イオン濃度は,泥炭に含まれる植物繊維の影響を強く受けていると考えられた. The soil solutions in surface peat soils were collected by using four methods : the peatland water method (PW), by which the seepage water in a pit of peatland was... |
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Palavras-chave: 採取方法; 泥炭; 土壌溶液; 無機イオン組成; 溶存有機物; Dissolved organic matter; Inorganic ion composition; Peat; Sampling methods; Soil solution. |
| Ano: 2003 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2967 |
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| Registros recuperados: 13 | |
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