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	Provedor de dados R.C. Suelo Nutr. Veg. (1) Autor Cartes,Paula (1) Demanet,Rolando (1) Mora,María de la Luz (1) Núñez,Pedro (1) Salazar,Mauricio (1) Palavra-chave Ammonium (1) Leaching (1) Nitrate (1) Nitrogen (1) Pasture (1) Tipo do documento Journal article (1) Ano 2007 (1) País Chile (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última MOVEMENT OF N0(3)-N AND NH4-N IN AN ANDISOL AND ITS INFLUENCE ON RYEGRASS PRODUCTION IN A SHORT TERM STUDY R.C. Suelo Nutr. Veg. Mora,María de la Luz; Cartes,Paula; Núñez,Pedro; Salazar,Mauricio; Demanet,Rolando. In acids soils, the use of ammonium fertilizers accelerates the acidification processes and decreases both the production and persistence of the pastures. Nitrogen (N) is the most limiting factor for plant growth in most agricultural systems, but also it is one of the major environmental issues worldwide. In Chile, neither systematic studies in the first period of pasture growth and nor N leaching losses associated have been reported. The aims of this study were: (i) to evaluate the effect of the N sources at increasing rates of application on the yield and quality of ryegrass (Lolium perenne) and (ii) to quantify in the short-term the N potential leaching losses and the pH changes throughout the soil profile under field conditions. A field experiment was... Tipo: Journal article Palavras-chave: Ammonium; Leaching; Nitrate; Nitrogen; Pasture. Ano: 2007 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912007000200005 Registros recuperados: 1 Primeira ... 1 ... Última

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