Soil carbon and nitrogen sequestration and crop growth as influenced by long-term application of effective microorganism compost

ABSTRACT Long-term excessive application of inorganic fertilizers not only wastes resources but also contaminates the environment. The use of natural substitutes could overcome these drawbacks. We hypothesize that organic fertilizers could increase soil C, N sequestration and improve soil fertility...

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Autores principales:	Hu,Cheng, Xia,Xiange, Chen,Yunfeng, Han,Xuemei
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2018
Materias:	Compost effective microorganism sequestration soil organic carbon total nitrogen.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392018000100013
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spelling	oai:scielo:S0718-583920180001000132018-04-25Soil carbon and nitrogen sequestration and crop growth as influenced by long-term application of effective microorganism compostHu,ChengXia,XiangeChen,YunfengHan,Xuemei Compost effective microorganism sequestration soil organic carbon total nitrogen. ABSTRACT Long-term excessive application of inorganic fertilizers not only wastes resources but also contaminates the environment. The use of natural substitutes could overcome these drawbacks. We hypothesize that organic fertilizers could increase soil C, N sequestration and improve soil fertility more effectively than inorganic fertilizers, and that in particular effective microorganism (EM) could improve the effects of traditional compost. So, a long-term field experiment regarding improvement of soil fertility, protecting soil environment, and increasing of maize and wheat yield was conducted at China Agricultural University’s Qu-Zhou experiment station since 1993. Field experiment included EM compost treatment, traditional compost treatment, chemical fertilizer treatment, and unfertilized treatment. Soil organic C (SOC), total N, nutrient concentrations, pH, bulk density, and crop yields were determined. The results revealed that long-term repeated application of EM compost promoted soil C and N sequestration, increased soil nutrient contents, decreased soil pH and bulk density, enhanced crop yields in contrast to chemical fertilizer and control treatment. Soil organic C stocks (0-20 cm) were increased by 87.32%, 81.51%, 33.05%, 25.20% and soil total N stocks were increased by 93.26%, 77.53%, 37.64%, 34.83% in contrast to initial values in EM compost, traditional compost, chemical fertilizer and control treatments, respectively. Moreover, maize grain yields in EM compost, traditional compost, and chemical fertilizer treatments were significantly increased by 163.49%, 128.34%, 62.36% compared with control treatment, respectively. The effect of increased soil C and N sequestration, improving soil fertility and enhanced crop yields in application of compost appending EM was better than alone application of compost.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.78 n.1 20182018-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392018000100013en10.4067/S0718-58392018000100013
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Compost effective microorganism sequestration soil organic carbon total nitrogen.
spellingShingle	Compost effective microorganism sequestration soil organic carbon total nitrogen. Hu,Cheng Xia,Xiange Chen,Yunfeng Han,Xuemei Soil carbon and nitrogen sequestration and crop growth as influenced by long-term application of effective microorganism compost
description	ABSTRACT Long-term excessive application of inorganic fertilizers not only wastes resources but also contaminates the environment. The use of natural substitutes could overcome these drawbacks. We hypothesize that organic fertilizers could increase soil C, N sequestration and improve soil fertility more effectively than inorganic fertilizers, and that in particular effective microorganism (EM) could improve the effects of traditional compost. So, a long-term field experiment regarding improvement of soil fertility, protecting soil environment, and increasing of maize and wheat yield was conducted at China Agricultural University’s Qu-Zhou experiment station since 1993. Field experiment included EM compost treatment, traditional compost treatment, chemical fertilizer treatment, and unfertilized treatment. Soil organic C (SOC), total N, nutrient concentrations, pH, bulk density, and crop yields were determined. The results revealed that long-term repeated application of EM compost promoted soil C and N sequestration, increased soil nutrient contents, decreased soil pH and bulk density, enhanced crop yields in contrast to chemical fertilizer and control treatment. Soil organic C stocks (0-20 cm) were increased by 87.32%, 81.51%, 33.05%, 25.20% and soil total N stocks were increased by 93.26%, 77.53%, 37.64%, 34.83% in contrast to initial values in EM compost, traditional compost, chemical fertilizer and control treatments, respectively. Moreover, maize grain yields in EM compost, traditional compost, and chemical fertilizer treatments were significantly increased by 163.49%, 128.34%, 62.36% compared with control treatment, respectively. The effect of increased soil C and N sequestration, improving soil fertility and enhanced crop yields in application of compost appending EM was better than alone application of compost.
author	Hu,Cheng Xia,Xiange Chen,Yunfeng Han,Xuemei
author_facet	Hu,Cheng Xia,Xiange Chen,Yunfeng Han,Xuemei
author_sort	Hu,Cheng
title	Soil carbon and nitrogen sequestration and crop growth as influenced by long-term application of effective microorganism compost
title_short	Soil carbon and nitrogen sequestration and crop growth as influenced by long-term application of effective microorganism compost
title_full	Soil carbon and nitrogen sequestration and crop growth as influenced by long-term application of effective microorganism compost
title_fullStr	Soil carbon and nitrogen sequestration and crop growth as influenced by long-term application of effective microorganism compost
title_full_unstemmed	Soil carbon and nitrogen sequestration and crop growth as influenced by long-term application of effective microorganism compost
title_sort	soil carbon and nitrogen sequestration and crop growth as influenced by long-term application of effective microorganism compost
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392018000100013
work_keys_str_mv	AT hucheng soilcarbonandnitrogensequestrationandcropgrowthasinfluencedbylongtermapplicationofeffectivemicroorganismcompost AT xiaxiange soilcarbonandnitrogensequestrationandcropgrowthasinfluencedbylongtermapplicationofeffectivemicroorganismcompost AT chenyunfeng soilcarbonandnitrogensequestrationandcropgrowthasinfluencedbylongtermapplicationofeffectivemicroorganismcompost AT hanxuemei soilcarbonandnitrogensequestrationandcropgrowthasinfluencedbylongtermapplicationofeffectivemicroorganismcompost
_version_	1714205374558502912

Soil carbon and nitrogen sequestration and crop growth as influenced by long-term application of effective microorganism compost

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