Phosphate Fertilization Can Increase Yield of Productive Grass Pea (Lathyrus sativus L.) Crops in P-Retentive Soils

The effect of P fertilization on grass pea (Lathyrus sativus L.) yield and yield components was evaluated on soils with low P availability and high P retention capacity in small-scale farms of the Araucanía Region in southern Chile. Trials were conducted during 2000-2001, 2001-2002, and 2002-2003, i...

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Autores principales:	Montenegro,Adolfo, Mera,Mario
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2009
Materias:	grass pea phosphorus neglected crops cool-season legumes
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000200014
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spelling	oai:scielo:S0718-583920090002000142018-10-01Phosphate Fertilization Can Increase Yield of Productive Grass Pea (Lathyrus sativus L.) Crops in P-Retentive SoilsMontenegro,AdolfoMera,Mario grass pea phosphorus neglected crops cool-season legumes The effect of P fertilization on grass pea (Lathyrus sativus L.) yield and yield components was evaluated on soils with low P availability and high P retention capacity in small-scale farms of the Araucanía Region in southern Chile. Trials were conducted during 2000-2001, 2001-2002, and 2002-2003, in six sites; three sites in Lumaco and three in the Selva Oscura area. Six rates of P (0, 21.8, 43.6, 65.4, 87.2, and 109.0 kg ha-1) were evaluated in a randomized complete block design with four replicates. Grass pea cv. Luanco-INIA was sown at 47 seeds m-2. Mean grain yield for all trials was 2456 kg ha-1. Phosphate fertilization increased grass pea grain yield in both areas during 2000 and 2001. There was no significant effect in 2002. The 2002 cropping season had an unusually high spring-summer rainfall, which may have enhanced the P mineralization rate from organic soil fraction, and thus P availability. According to this study, grass pea crops in soils with < 10 mg kg-1 of available P-Olsen should respond to P fertilization.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.69 n.2 20092009-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000200014en10.4067/S0718-58392009000200014
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	grass pea phosphorus neglected crops cool-season legumes
spellingShingle	grass pea phosphorus neglected crops cool-season legumes Montenegro,Adolfo Mera,Mario Phosphate Fertilization Can Increase Yield of Productive Grass Pea (Lathyrus sativus L.) Crops in P-Retentive Soils
description	The effect of P fertilization on grass pea (Lathyrus sativus L.) yield and yield components was evaluated on soils with low P availability and high P retention capacity in small-scale farms of the Araucanía Region in southern Chile. Trials were conducted during 2000-2001, 2001-2002, and 2002-2003, in six sites; three sites in Lumaco and three in the Selva Oscura area. Six rates of P (0, 21.8, 43.6, 65.4, 87.2, and 109.0 kg ha-1) were evaluated in a randomized complete block design with four replicates. Grass pea cv. Luanco-INIA was sown at 47 seeds m-2. Mean grain yield for all trials was 2456 kg ha-1. Phosphate fertilization increased grass pea grain yield in both areas during 2000 and 2001. There was no significant effect in 2002. The 2002 cropping season had an unusually high spring-summer rainfall, which may have enhanced the P mineralization rate from organic soil fraction, and thus P availability. According to this study, grass pea crops in soils with < 10 mg kg-1 of available P-Olsen should respond to P fertilization.
author	Montenegro,Adolfo Mera,Mario
author_facet	Montenegro,Adolfo Mera,Mario
author_sort	Montenegro,Adolfo
title	Phosphate Fertilization Can Increase Yield of Productive Grass Pea (Lathyrus sativus L.) Crops in P-Retentive Soils
title_short	Phosphate Fertilization Can Increase Yield of Productive Grass Pea (Lathyrus sativus L.) Crops in P-Retentive Soils
title_full	Phosphate Fertilization Can Increase Yield of Productive Grass Pea (Lathyrus sativus L.) Crops in P-Retentive Soils
title_fullStr	Phosphate Fertilization Can Increase Yield of Productive Grass Pea (Lathyrus sativus L.) Crops in P-Retentive Soils
title_full_unstemmed	Phosphate Fertilization Can Increase Yield of Productive Grass Pea (Lathyrus sativus L.) Crops in P-Retentive Soils
title_sort	phosphate fertilization can increase yield of productive grass pea (lathyrus sativus l.) crops in p-retentive soils
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000200014
work_keys_str_mv	AT montenegroadolfo phosphatefertilizationcanincreaseyieldofproductivegrasspealathyrussativuslcropsinpretentivesoils AT meramario phosphatefertilizationcanincreaseyieldofproductivegrasspealathyrussativuslcropsinpretentivesoils
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Phosphate Fertilization Can Increase Yield of Productive Grass Pea (Lathyrus sativus L.) Crops in P-Retentive Soils

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