Evolution of organic matter and drainages in wood fibre and coconut fibre substrates

Domeño, I.; Irigoyen, Ignacio; Muro, Julio

doi:10.1016/j.scienta.2009.05.006

Cited by 34 publications

(16 citation statements)

References 10 publications

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“…Likewise, if a range from 0.75 to 3.49 dS m -1 (Garcia-Gomez et al, 2002) is considered suitable for substrate components, only coconut fiber would satisfy the requirement. Domeño et al (2009) found a three times higher EC value than observed in this study (5.64 dS m -1 ) for coconut fiber, which illustrates the heterogeneous composition of organic residues. It was observed that the composition of most of the residues needed adjustments for pH and EC to become suitable for the varied agricultural uses.…”

Section: Resultscontrasting

confidence: 57%

“…The characteristics of plant residues vary depending on the plant species, plant tissues, and soil chemical and physical properties, but are generally nutrient-poor and have lower EC than animal or municipal wastes (Abad et al, 2002;Garcia-Gomez et al, 2002;Benito et al, 2003;Benito et al, 2005;Benito et al, 2006;Domeño et al, 2009;Bernal et al 1998;Ingelmo et al, 1998;Hernández-Apaolaza et al, 2005;Bardhan et al, 2008;Ostos et al, 2008). Benito et al (2006) concluded that composts obtained from pruning must be mixed with other ingredients rich in nutrients, to compensate the low-nutrient level.…”

Section: Introductionmentioning

confidence: 99%

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Chemical and physical properties of organic residues

Higashikawa

Silva²,

Bettiol

2010

Rev. Bras. Ciênc. Solo

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SUMMARYDue to human activity, large amounts of organic residue are generated daily. Therefore, an adequate use in agricultural activities requires the characterization of the main properties. The chemical and physical characterization is important when planning the use and management of organic residue. In this study, chemical and physical properties of charcoal, coffee husk, pine-bark, cattle manure, chicken manure, coconut fiber, sewage sludge, peat, and vermiculite were determined. The following properties were analyzed: N-NH 4 + , N-N0 3 -, and total concentrations of N, P, S, K, Ca, Mg, Mn, Zn, Cu, and B, as well as pH, Electrical Conductivity (EC) and bulk density. Coffee husk, sewage sludge, chicken manure and cattle manure were generally richer in nutrients. The EC values of these residues were also the highest (0.08 -40.6 dS m -1 ). Peat and sewage sludge had the highest bulky density. Sodium contents varied from 0 to 4.75 g kg -1 , with the highest levels in chicken manure, cattle manure and sewage sludge. Great care must be taken when establishing proportions of organic residues in the production of substrates with coffee husk, cattle or chicken manure or sewage sludge in the calculation of the applied fertilizer quantity in crop fertilization programs.Index terms: substrate, organic residue, soil contamination, residue disposal.( de: N, N-amônio, Nnitrato, P, S, K, Ca, Zn, Cu e B; foram, também, os

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Section: Resultscontrasting

confidence: 57%

Section: Introductionmentioning

confidence: 99%

Chemical and physical properties of organic residues

Higashikawa

Silva²,

Bettiol

2010

Rev. Bras. Ciênc. Solo

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“…Estos datos indican que las partículas de los materiales ensayados sufren una acomodación inherente a su naturaleza y, posiblemente, debido a que en los primeros estados de desarrollo se aplicó una mayor cantidad de agua, se favoreció un lavado de las partículas finas y, por ende, su acomodación en los espacios de los meso y los macroporos (Papafotiou y Vagena, 2012). Los valores de la porosidad total obtenida se ubicaron dentro de los valores adecuados para cultivos de flores de corte (Quintero et al, 2011b), aunque hay que indicar que se observa una influencia entre el tiempo de cultivo y la naturaleza del sustrato, así Domeño et al (2009Domeño et al ( , 2010, indicaron que la PT en la FC disminuyó después de 6 meses de soportar un cultivo de tomate, en cambio en esta experiencia no se encontraron diferencias significativas en la FC, posiblemente debido al manejo del cultivo. Del mismo modo, Quintero et al (2012) indican que la PT disminuyó un 13% para la CAT tras 100 semanas de un cultivo de clavel cv.…”

Section: Análisis Físicos De Los Sustratosunclassified

Evaluación de sustratos alternativos para el cultivo de miniclavel (Dianthus caryophyllus L.)

Quintero¹,

Guzmán²,

Valenzuela³

2013

Rev. Colomb. Cienc. Hortic.

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Plantulas de tomate.Foto: Álvarez-Herrera. Evaluación de sustratos alternativos para el cultivo de miniclavel (Dianthus caryophyllus L.)Evaluation of alternative substrates for growing the mini carnation (Dianthus caryophyllus L.) Flor de miniclavel.Foto: M.F. Quintero C. RESUMENDesde la década de 1990 los cultivos de clavel en la Sabana de Bogotá se realizan en sustratos diferentes al suelo. El sustrato más utilizado es la cascarilla de arroz tostada pero, por la contaminación ambiental que genera su quemado, el riesgo de escasez y el aumento en su costo; se están buscando alternativas. En este artículo se compararon cuatro materiales que podrían servir como sustratos alternativos a la cascarilla de arroz tostada: cascarilla de arroz cruda y esterilizada, fibra de coco y escorias de carbón. Se determinaron, a lo largo de un año de cultivo, las propiedades fisicoquímicas de los sustratos, la productividad de las plantas, el peso de ramos, el análisis de tejido vegetal y el porcentaje de plantas muertas por Fusarium oxysporum. Los resultados mostraron que existen diferencias significativas entre los materiales evaluados lo que sugiere diferencias en el manejo durante el cultivo. El sustrato que presentó mayor productividad fue la fibra de coco, seguido de la cascarilla de arroz tostada, aunque no se encontraron diferencias en cuanto al peso de los ramos. La incidencia de Fusarium originó una mayor mortalidad de las plantas cultivadas sobre cascarilla de arroz cruda, seguido de la cascarilla de arroz tostada, aunque esta sigue constituyendo una alternativa sanitaria y de productividad viable para la producción de miniclavel, los resultados muestran ventajas en algunos materiales estudiados y que se podrían mejorar las características si se realizan mezclas adecuadas de los mismos, pero debe continuarse en la búsque-da de sustratos alternativos para este importante cultivo.Palabras clave adicionales: cascarilla de arroz, fibra de coco, escoria de carbón, ornamentales.

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“…In addition to corroborating earlier findings of the ability of tomato to support P. chlamydosporia colonization (MANZANILLA-LOPEZ et al, 2013), we found that the fungus can form a tangle of hyphae similar to those formed by arbuscular mycorrhizae. It has been suggested that this nematode antagonist may act as an endophyte (MACIÁ-VICENTE et al, 2009a) and may increase the ability of the tomato to germinate, absorb water from the substrate and resist stress due to the deleterious effects of salts present in the coconut fiber substrate (DOMEÑO et al, 2009;HERNÁNDEZ-APAOLAZA et al, 2005). In addition, enhanced development of the plants may be associated with the chemical degradation of cellulose from the coconut fiber by enzymes produced by the fungus (ESTEVES et al, 2009;LARRIBA et al, 2014) and the subsequent translocation of carbohydrates, as well as nutrients like nitrogen and phosphorus, to the roots of the tomato plants, as has been observed with arbuscular mycorrhizal fungi (SCHREINER, 2007).…”

Section: Resultsmentioning

confidence: 99%

<b><i>Pochonia chlamydosporia</i> promotes the growth of tomato and lettuce plants

et al. 2015

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ABSTRACT. The fungus Pochonia chlamydosporia is one of the most studied biological agents used to control plant-parasitic nematodes. This study found that the isolates Pc-3, Pc-10 and Pc-19 of this fungus promote the growth of tomato and lettuce seedlings. The isolate Pc-19 colonized the rhizoplane of tomato seedlings in only 15 days and produced a large quantity of chlamydospores. This isolate was able to use cellulose as a carbon source, in addition to glucose and sucrose. Scanning electron microscopy (SEM) revealed that hyphae of the P. chlamydosporia isolate Pc-10 penetrated the epidermal cells of the tomato roots. These three P. chlamydosporia isolates promote the growth of tomato and lettuce.

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Evolution of organic matter and drainages in wood fibre and coconut fibre substrates

Cited by 34 publications

References 10 publications

Chemical and physical properties of organic residues

Chemical and physical properties of organic residues

Evaluación de sustratos alternativos para el cultivo de miniclavel (Dianthus caryophyllus L.)

<b><i>Pochonia chlamydosporia</i> promotes the growth of tomato and lettuce plants

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