Stability and maturity of maize stalks compost as affected by aeration rate, C/N ratio and moisture content

To estimate the order of importance of factors affecting the stability and maturation of compost, cow feces and maize stalks were co-composted at different aeration rates "AR" (22, 44 and 66 L kg-1 DM . min-1) of C/N ratios (16, 19, 22), and moisture contents "MC" (60 %, 65 %, 70...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	Nada,W. M
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2015
Materias:	Composting agricultural waste compost quality stability maturity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000300016
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-95162015000300016
record_format	dspace
spelling	oai:scielo:S0718-951620150003000162015-10-14Stability and maturity of maize stalks compost as affected by aeration rate, C/N ratio and moisture contentNada,W. M Composting agricultural waste compost quality stability maturity To estimate the order of importance of factors affecting the stability and maturation of compost, cow feces and maize stalks were co-composted at different aeration rates "AR" (22, 44 and 66 L kg-1 DM . min-1) of C/N ratios (16, 19, 22), and moisture contents "MC" (60 %, 65 %, 70 %). A composting process was monitored by physical and chemical methods. The thermophilic phase with all treatments was long enough to meet sanitation requirements. The emitted carbon dioxide and the losses total organic carbon and total extractable carbon increased with increasing aeration rate, there was a significant difference between the treatments with low and high aeration rate, but no significant differences between those two treatments and the moderate aeration rate. The total nitrogen contents of all treatments decreased during the thermophilic phase, while it was increased after that for all treatments except T8. The compost with the highest initial C/N ratio was significantly different from the other treatments and had the highest values of humic substances, degree of humification and humification rate. The compost with the lowest initial C/N ratio was significantly different from the other treatments and had the lowest germination index (57-67%). Aeration rate was the main factor influencing compost stability, while the C/N ratio mainly contributed to compost maturity, and the moisture content had an insignificant effect on the compost quality. The recommended parameters for composting are an aeration rate of 0.44 L kg-1 DM. min-1 and a carbon to nitrogen ratio of 19 with moisture content of 60-70%.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.15 n.3 20152015-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000300016en10.4067/S0718-95162015005000051
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Composting agricultural waste compost quality stability maturity
spellingShingle	Composting agricultural waste compost quality stability maturity Nada,W. M Stability and maturity of maize stalks compost as affected by aeration rate, C/N ratio and moisture content
description	To estimate the order of importance of factors affecting the stability and maturation of compost, cow feces and maize stalks were co-composted at different aeration rates "AR" (22, 44 and 66 L kg-1 DM . min-1) of C/N ratios (16, 19, 22), and moisture contents "MC" (60 %, 65 %, 70 %). A composting process was monitored by physical and chemical methods. The thermophilic phase with all treatments was long enough to meet sanitation requirements. The emitted carbon dioxide and the losses total organic carbon and total extractable carbon increased with increasing aeration rate, there was a significant difference between the treatments with low and high aeration rate, but no significant differences between those two treatments and the moderate aeration rate. The total nitrogen contents of all treatments decreased during the thermophilic phase, while it was increased after that for all treatments except T8. The compost with the highest initial C/N ratio was significantly different from the other treatments and had the highest values of humic substances, degree of humification and humification rate. The compost with the lowest initial C/N ratio was significantly different from the other treatments and had the lowest germination index (57-67%). Aeration rate was the main factor influencing compost stability, while the C/N ratio mainly contributed to compost maturity, and the moisture content had an insignificant effect on the compost quality. The recommended parameters for composting are an aeration rate of 0.44 L kg-1 DM. min-1 and a carbon to nitrogen ratio of 19 with moisture content of 60-70%.
author	Nada,W. M
author_facet	Nada,W. M
author_sort	Nada,W. M
title	Stability and maturity of maize stalks compost as affected by aeration rate, C/N ratio and moisture content
title_short	Stability and maturity of maize stalks compost as affected by aeration rate, C/N ratio and moisture content
title_full	Stability and maturity of maize stalks compost as affected by aeration rate, C/N ratio and moisture content
title_fullStr	Stability and maturity of maize stalks compost as affected by aeration rate, C/N ratio and moisture content
title_full_unstemmed	Stability and maturity of maize stalks compost as affected by aeration rate, C/N ratio and moisture content
title_sort	stability and maturity of maize stalks compost as affected by aeration rate, c/n ratio and moisture content
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000300016
work_keys_str_mv	AT nadawm stabilityandmaturityofmaizestalkscompostasaffectedbyaerationratecnratioandmoisturecontent
_version_	1714206512869539840

Stability and maturity of maize stalks compost as affected by aeration rate, C/N ratio and moisture content

Ejemplares similares