Potassium nutrition in the first and second ratoon sugarcane grown in an Oxisol by a conservationist system

The presence of mulch on the soil surface after the mechanical harvesting of sugarcane (Saccharum officinarum L.) enhances the cycling of nutrients, especially K, which can decrease K fertilizer recommendations for the crop. The aim of this study was to evaluate the effect of K addition to an Oxisol...

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Autores principales:	Alves Flores,Rilner, de Mello Prado,Renato, Pancelli,Márcio Alexandre, Almeida,Hilário Júnior, Moda,Leandro Rosatto, Montes Nogueira Borges,Bernardo Melo, Pereira de Souza Junior,Jonas
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2014
Materias:	Plant nutrition residues covering Saccharum officinarum
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000100013
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spelling	oai:scielo:S0718-583920140001000132018-10-01Potassium nutrition in the first and second ratoon sugarcane grown in an Oxisol by a conservationist systemAlves Flores,Rilnerde Mello Prado,RenatoPancelli,Márcio AlexandreAlmeida,Hilário JúniorModa,Leandro RosattoMontes Nogueira Borges,Bernardo MeloPereira de Souza Junior,Jonas Plant nutrition residues covering Saccharum officinarum The presence of mulch on the soil surface after the mechanical harvesting of sugarcane (Saccharum officinarum L.) enhances the cycling of nutrients, especially K, which can decrease K fertilizer recommendations for the crop. The aim of this study was to evaluate the effect of K addition to an Oxisol, with an initial concentration 0.07 cmol c K kg-1, in first and second ratoon (no-till) sugarcane cultures by a conservationist system, i.e. rational use of fertilizers, use of alternative inputs and especially the maintenance of residues in soil that was previously burned to facilitate cutting. The following K doses were tested: 0, 32.5, 65, 130, and 195 kg K2O ha-1, arranged in a randomized block design with five replicates. Potassium content in the soil and in the plant, as well as the yield and the quality of stalks were evaluated. Soil K application increased K concentration in soil and plant, and was reflected in the production of stalks, with higher production (87.5 and 107.5 t ha-1) with the use of 120 and 123 kg K2O ha-1 in first and second ratoon sugarcane, respectively. At the first 2 yr it was not possible to reduce the K fertilization in ratoon. Therefore, with the introduction of the conservationist system there was an increase (20 t ha-1) at the second ratoon regarding the first one with the same applied rate.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.74 n.1 20142014-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000100013en10.4067/S0718-58392014000100013
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Plant nutrition residues covering Saccharum officinarum
spellingShingle	Plant nutrition residues covering Saccharum officinarum Alves Flores,Rilner de Mello Prado,Renato Pancelli,Márcio Alexandre Almeida,Hilário Júnior Moda,Leandro Rosatto Montes Nogueira Borges,Bernardo Melo Pereira de Souza Junior,Jonas Potassium nutrition in the first and second ratoon sugarcane grown in an Oxisol by a conservationist system
description	The presence of mulch on the soil surface after the mechanical harvesting of sugarcane (Saccharum officinarum L.) enhances the cycling of nutrients, especially K, which can decrease K fertilizer recommendations for the crop. The aim of this study was to evaluate the effect of K addition to an Oxisol, with an initial concentration 0.07 cmol c K kg-1, in first and second ratoon (no-till) sugarcane cultures by a conservationist system, i.e. rational use of fertilizers, use of alternative inputs and especially the maintenance of residues in soil that was previously burned to facilitate cutting. The following K doses were tested: 0, 32.5, 65, 130, and 195 kg K2O ha-1, arranged in a randomized block design with five replicates. Potassium content in the soil and in the plant, as well as the yield and the quality of stalks were evaluated. Soil K application increased K concentration in soil and plant, and was reflected in the production of stalks, with higher production (87.5 and 107.5 t ha-1) with the use of 120 and 123 kg K2O ha-1 in first and second ratoon sugarcane, respectively. At the first 2 yr it was not possible to reduce the K fertilization in ratoon. Therefore, with the introduction of the conservationist system there was an increase (20 t ha-1) at the second ratoon regarding the first one with the same applied rate.
author	Alves Flores,Rilner de Mello Prado,Renato Pancelli,Márcio Alexandre Almeida,Hilário Júnior Moda,Leandro Rosatto Montes Nogueira Borges,Bernardo Melo Pereira de Souza Junior,Jonas
author_facet	Alves Flores,Rilner de Mello Prado,Renato Pancelli,Márcio Alexandre Almeida,Hilário Júnior Moda,Leandro Rosatto Montes Nogueira Borges,Bernardo Melo Pereira de Souza Junior,Jonas
author_sort	Alves Flores,Rilner
title	Potassium nutrition in the first and second ratoon sugarcane grown in an Oxisol by a conservationist system
title_short	Potassium nutrition in the first and second ratoon sugarcane grown in an Oxisol by a conservationist system
title_full	Potassium nutrition in the first and second ratoon sugarcane grown in an Oxisol by a conservationist system
title_fullStr	Potassium nutrition in the first and second ratoon sugarcane grown in an Oxisol by a conservationist system
title_full_unstemmed	Potassium nutrition in the first and second ratoon sugarcane grown in an Oxisol by a conservationist system
title_sort	potassium nutrition in the first and second ratoon sugarcane grown in an oxisol by a conservationist system
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000100013
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Potassium nutrition in the first and second ratoon sugarcane grown in an Oxisol by a conservationist system

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