Increasing nitrogen rates in rice and its effect on plant nutrient composition and nitrogen apparent recovery

Rice (Oryza sativa L.) is one of the essential foods of the human diet; advances in agronomic crop management can improve productivity and profitability as well as reduce adverse environmental impacts. Nitrogen rates in Chile are generally based on crop yield without considering other agronomic fact...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Hirzel,Juan, Rodriguez,Francisco
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2013
Materias:	Fertilization nitrogen Oryza sativa
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000400009
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-58392013000400009
record_format	dspace
spelling	oai:scielo:S0718-583920130004000092018-10-02Increasing nitrogen rates in rice and its effect on plant nutrient composition and nitrogen apparent recoveryHirzel,JuanRodriguez,Francisco Fertilization nitrogen Oryza sativa Rice (Oryza sativa L.) is one of the essential foods of the human diet; advances in agronomic crop management can improve productivity and profitability as well as reduce adverse environmental impacts. Nitrogen rates in Chile are generally based on crop yield without considering other agronomic factors. The objective of this experiment was to determine the effect of increasing N rates on plant nutrient composition and N apparent recovery in rice cultivated in five different locations in Chile. The five sites located in central Chile belong to one of the following soil orders: Inceptisol, Alfisol, and Vertisol; they were cropped in field conditions with ’Zafiro-INIA’ rice fertilized with 0, 80, and 160 kg N ha-1. Whole-plant total DM, macronutrient composition, and N apparent recovery efficiency (NARE) were determined at grain harvest. Results indicate that all evaluated parameters, with the exception of K concentration, were affected by the soil used. Nitrogen rates only affected total DM production and P, K, and Mg concentrations in plants. Phosphorus and K response decreased when N was added to some soils, which is associated with its chemical properties. Magnesium concentration exhibited an erratic effect, but it was not affected by the N rate in most soils. Nitrogen apparent recovery efficiency was not affected by the N rate and accounted for approximately 49% and 41% for 80 and 160 kg N ha-1, respectively. Macronutrient composition was 5.1-7.7 g N, 1.3-1.8 g P, 5.4-10.8 g K, 1.68-2.57 g Ca, and 0.81-1.45 g Mg kg-1 of total DM.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.73 n.4 20132013-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000400009en10.4067/S0718-58392013000400009
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Fertilization nitrogen Oryza sativa
spellingShingle	Fertilization nitrogen Oryza sativa Hirzel,Juan Rodriguez,Francisco Increasing nitrogen rates in rice and its effect on plant nutrient composition and nitrogen apparent recovery
description	Rice (Oryza sativa L.) is one of the essential foods of the human diet; advances in agronomic crop management can improve productivity and profitability as well as reduce adverse environmental impacts. Nitrogen rates in Chile are generally based on crop yield without considering other agronomic factors. The objective of this experiment was to determine the effect of increasing N rates on plant nutrient composition and N apparent recovery in rice cultivated in five different locations in Chile. The five sites located in central Chile belong to one of the following soil orders: Inceptisol, Alfisol, and Vertisol; they were cropped in field conditions with ’Zafiro-INIA’ rice fertilized with 0, 80, and 160 kg N ha-1. Whole-plant total DM, macronutrient composition, and N apparent recovery efficiency (NARE) were determined at grain harvest. Results indicate that all evaluated parameters, with the exception of K concentration, were affected by the soil used. Nitrogen rates only affected total DM production and P, K, and Mg concentrations in plants. Phosphorus and K response decreased when N was added to some soils, which is associated with its chemical properties. Magnesium concentration exhibited an erratic effect, but it was not affected by the N rate in most soils. Nitrogen apparent recovery efficiency was not affected by the N rate and accounted for approximately 49% and 41% for 80 and 160 kg N ha-1, respectively. Macronutrient composition was 5.1-7.7 g N, 1.3-1.8 g P, 5.4-10.8 g K, 1.68-2.57 g Ca, and 0.81-1.45 g Mg kg-1 of total DM.
author	Hirzel,Juan Rodriguez,Francisco
author_facet	Hirzel,Juan Rodriguez,Francisco
author_sort	Hirzel,Juan
title	Increasing nitrogen rates in rice and its effect on plant nutrient composition and nitrogen apparent recovery
title_short	Increasing nitrogen rates in rice and its effect on plant nutrient composition and nitrogen apparent recovery
title_full	Increasing nitrogen rates in rice and its effect on plant nutrient composition and nitrogen apparent recovery
title_fullStr	Increasing nitrogen rates in rice and its effect on plant nutrient composition and nitrogen apparent recovery
title_full_unstemmed	Increasing nitrogen rates in rice and its effect on plant nutrient composition and nitrogen apparent recovery
title_sort	increasing nitrogen rates in rice and its effect on plant nutrient composition and nitrogen apparent recovery
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000400009
work_keys_str_mv	AT hirzeljuan increasingnitrogenratesinriceanditseffectonplantnutrientcompositionandnitrogenapparentrecovery AT rodriguezfrancisco increasingnitrogenratesinriceanditseffectonplantnutrientcompositionandnitrogenapparentrecovery
_version_	1714205328659185664

Increasing nitrogen rates in rice and its effect on plant nutrient composition and nitrogen apparent recovery

Ejemplares similares