Rice straw biochar and different urea rates on rice yield and CH4 and CO2 gases emissions

ABSTRACT The application of biochar using inorganic fertilizer has been reported as being more efficient for the effective growth of soil microbes. However, there is no evidence that rice straw biochar (9 t ha-1) and different urea rates have had any effect on greenhouse gas (GHG) emissions of rice...

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Autores principales:	Lai,Lai, Ismail,Mohd Razi, Yusof,Martini Mohammad, Ismail,Roslan
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2021
Materias:	Combined effect global warming nitrogen fertilizer Oryza sativa rice productivity rice straw-derived biochar
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392021000300448
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spelling	oai:scielo:S0718-583920210003004482021-08-16Rice straw biochar and different urea rates on rice yield and CH4 and CO2 gases emissionsLai,LaiIsmail,Mohd RaziYusof,Martini MohammadIsmail,Roslan Combined effect global warming nitrogen fertilizer Oryza sativa rice productivity rice straw-derived biochar ABSTRACT The application of biochar using inorganic fertilizer has been reported as being more efficient for the effective growth of soil microbes. However, there is no evidence that rice straw biochar (9 t ha-1) and different urea rates have had any effect on greenhouse gas (GHG) emissions of rice (Oryza sativa L.) production in tropical soils. Therefore, this study was conducted to investigate the effects of urea and the application of rice straw biochar (9 t ha-1) on yield and GHG emissions. Treatments were 150 kg N ha-1 (T1 control) and rice straw biochar (9 t ha-1) combined with 30, 60, 90, 120, and 150 kg N ha-1 (T2, T3, T4, T5, and T6, respectively). The experiment had a randomized complete block design with four replicates. Grain yield increased 20.7% in plants grown in T3, T4, and T5 compared with the control. Although all biochar treatments had increased cumulative CO2-C emissions compared with the control (5.0% to 7.6%), the cumulative CH4 emissions significantly decreased compared with the control (20% to 27%). Therefore, it could be suggested that T3 and T4 (9 t ha-1 rice straw biochar with 60 and 90 kg N ha-1) increase yield and reduce CH4 emissions relative to the control. Although this study was limited to a pot experiment with no nutrient leaching, the synergetic effect of rice straw biochar (9 t ha-1) and reduced urea rate is worth mentioning for acidic paddy soil; a field experiment is suggested to determine the long-term effect of biochar.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.81 n.3 20212021-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392021000300448en10.4067/S0718-58392021000300448
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Combined effect global warming nitrogen fertilizer Oryza sativa rice productivity rice straw-derived biochar
spellingShingle	Combined effect global warming nitrogen fertilizer Oryza sativa rice productivity rice straw-derived biochar Lai,Lai Ismail,Mohd Razi Yusof,Martini Mohammad Ismail,Roslan Rice straw biochar and different urea rates on rice yield and CH4 and CO2 gases emissions
description	ABSTRACT The application of biochar using inorganic fertilizer has been reported as being more efficient for the effective growth of soil microbes. However, there is no evidence that rice straw biochar (9 t ha-1) and different urea rates have had any effect on greenhouse gas (GHG) emissions of rice (Oryza sativa L.) production in tropical soils. Therefore, this study was conducted to investigate the effects of urea and the application of rice straw biochar (9 t ha-1) on yield and GHG emissions. Treatments were 150 kg N ha-1 (T1 control) and rice straw biochar (9 t ha-1) combined with 30, 60, 90, 120, and 150 kg N ha-1 (T2, T3, T4, T5, and T6, respectively). The experiment had a randomized complete block design with four replicates. Grain yield increased 20.7% in plants grown in T3, T4, and T5 compared with the control. Although all biochar treatments had increased cumulative CO2-C emissions compared with the control (5.0% to 7.6%), the cumulative CH4 emissions significantly decreased compared with the control (20% to 27%). Therefore, it could be suggested that T3 and T4 (9 t ha-1 rice straw biochar with 60 and 90 kg N ha-1) increase yield and reduce CH4 emissions relative to the control. Although this study was limited to a pot experiment with no nutrient leaching, the synergetic effect of rice straw biochar (9 t ha-1) and reduced urea rate is worth mentioning for acidic paddy soil; a field experiment is suggested to determine the long-term effect of biochar.
author	Lai,Lai Ismail,Mohd Razi Yusof,Martini Mohammad Ismail,Roslan
author_facet	Lai,Lai Ismail,Mohd Razi Yusof,Martini Mohammad Ismail,Roslan
author_sort	Lai,Lai
title	Rice straw biochar and different urea rates on rice yield and CH4 and CO2 gases emissions
title_short	Rice straw biochar and different urea rates on rice yield and CH4 and CO2 gases emissions
title_full	Rice straw biochar and different urea rates on rice yield and CH4 and CO2 gases emissions
title_fullStr	Rice straw biochar and different urea rates on rice yield and CH4 and CO2 gases emissions
title_full_unstemmed	Rice straw biochar and different urea rates on rice yield and CH4 and CO2 gases emissions
title_sort	rice straw biochar and different urea rates on rice yield and ch4 and co2 gases emissions
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392021000300448
work_keys_str_mv	AT lailai ricestrawbiocharanddifferenturearatesonriceyieldandch4andco2gasesemissions AT ismailmohdrazi ricestrawbiocharanddifferenturearatesonriceyieldandch4andco2gasesemissions AT yusofmartinimohammad ricestrawbiocharanddifferenturearatesonriceyieldandch4andco2gasesemissions AT ismailroslan ricestrawbiocharanddifferenturearatesonriceyieldandch4andco2gasesemissions
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Rice straw biochar and different urea rates on rice yield and CH4 and CO2 gases emissions

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