Sources Of Nitrogen Fertilizers
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Evaluation of NPK doses on the production of papaya 'Caliman 01'
RESUMO O objetivo do trabalho foi avaliar o efeito de diferentes doses de NPK nos componentes de produção do híbrido de mamão papaia 'Caliman 01'. O experimento foi realizado na empresa WG Fruticultura, localizada na região da Chapada do Apodi. Cinco doses de nitrogênio (75, 590, 837, 1088 e 1575 kg N ha-1), cinco doses de fósforo (10, 72, 96, 133 e 1
Rev. Ciênc. Agron.. Publicado em: 04/11/2019
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2. CAPIM TROPICAL MANEJADO SOB LOTAÇÃO INTERMITENTE, SUBMETIDO A FONTES DE FÓSFORO COM DIFERENTES SOLUBILIDADES, ASSOCIADOS OU NÃO À ADUBAÇÃO COM NITROGÊNIO
Resumo Objetivou-se avaliar as características morfogênicas e estruturais do capim-piatã submetido à lotação intermitente e adubado com fontes de fósforo de diferentes solubilidades e adubação nitrogenada. Os tratamentos foram: controle (sem aplicação de adubo fosfatado); fonte de fósforo de lenta solubilidade (FNR); fonte de fósforo de rápida
Ciênc. anim. bras.. Publicado em: 22/08/2019
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3. Ammonia Volatilization from Soil-Applied Organic Fertilizers
ABSTRACT: A reliable quantification of nitrogen (N) losses by ammonia (NH3) volatilization can contribute to identifying optimized strategies of fertilizer management. The objective of this study was to quantify ammonia volatilization from several organic N sources incorporated into or applied onto the soil surface. Two cultivation areas, under snap bean and
Rev. Bras. Ciênc. Solo. Publicado em: 27/05/2019
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4. Nitrogen fertilization in top dressing for wheat crop in succession to soybean under a no-till system
ABSTRACT Agricultural intensification to improve wheat yield has increased the demand for nitrogen fertilizers. This study aimed to investigate the wheat response in succession to soybean due to application of nitrogen rates and sources in top dressing, as well as to determine the N rates of maximum technical yield (MTY) and maximum economic yield (MEY). A f
Bragantia. Publicado em: 15/05/2017
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5. Resposta da canola a fontes, doeses e parcelamento de nitrogÃnio, em Toledo â PR / Response of canola to nitrogen fertilization
O termo canola à um acrÃnimo de CANadian Oil Low Acid e foi adotado como padrÃo para indicar baixos teores de Ãcido erÃcico e glucosinolatos. De um modo geral, os solos tropicais apresentam baixa disponibilidade de nitrogÃnio (N) em funÃÃo dos baixos estoques de matÃria orgÃnica, exigindo o fornecimento externo de N para suprir as demandas da cultu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/06/2012
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6. Resposta da cultura do milho aos fertilizantes fosfatados e nitrogenados revestidos com polímeros / Response of maize to polymer-covered phosphate and nitrogen fertilizers
The effective use of fertilizers, besides resulting in greater yield, can reduce production costs, with positive results in the end of the cropping season. Soil correction and fertilization in intensive maize production systems represent, on average, 40% to 45% of the production cost. Phosphorus is considered as a nutrient with low absorption by plants due t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/01/2012
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7. DINÂMICA DO FÓSFORO NA INTEGRAÇÃO LAVOURA-PECUÁRIA SOB SISTEMA PLANTIO DIRETO / Phosphurus dynamic in crop livestock integration under notillage.
The necessity to preserve the soil, coupled with the constant search for lower production costs and increased productivity resulted in the use no-tillage (NT). Efficient technique in the preservation and use of highly weathered soils (tropical and subtropical soils). However, only the continuous cultivation of monocultures has been implicated in reduced prof
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/11/2011
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8. ADUBAÇÃO NITROGENADA EM VIDEIRA: PERDAS E MINERALIZAÇÃO DE NITROGÊNIO / NIITROGEN FERTILIZATION ON VINE: LOSSES AND MINERALIZATION OF NITROGEN
Since 1980, native fields of the Campanha Gaúcha from Rio Grande do Sul State (RS) have been incorporated into the grape production. In this region, vines has been cultivated under sandy soils with low organic matter content; therefore they have a low nitrogen (N) supply capacity and inputs of N through organic or mineral sources are necessary. Although, so
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2011
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9. Effect of sources and rates of nitrogen on nutrients extraction in coastcross pastures.
The contents and the extraction of mineral nutrients were determined in a coastcross pastures established on a dark red lotosol (Hapludox), in Sao Carlos, SP, Brazil, under tropical altitude climate, receving five rates of urea and ammonium nitrate, applied on surface. There weredifference (P<0.05) among sources and rates of N. Nutrients extractionincreased
INTERNATIONAL GRASSLAND CONGRESS. Publicado em: 2011
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10. Timing of nitrogen fertilizer application in no-tillage cotton in Brazil.
This study aimed at evaluating the agronomic efficiency of nitrogen (N) fertilizers blended with urease inhibitor, nitrification inhibitor, and a slow-release polymer applied at different times in a no-till cotton crop as well as the possibility of reducing the number of broadcast applications using conventional and alternative N sources. The experiment was
WORLD FERTILIZER CONGRESS OF THE INTERNATIONAL SCIENTIFIC CENTRE FOR FERTILIZERS. Publicado em: 2011
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11. Influence of urea and ammonium sulfate on soil acidity indices in lowland rice production.
Urea and ammonium sulfate are principal nitrogen (N) sources for crop production. Two field experiments were conducted during three consecutive years to evaluate influence of urea and ammonium sulfate application on grain yield, soil pH, calcium (Ca) saturation, magnesium (Mg) saturation, base saturation, aluminum (Al) saturation, and acidity (H + Al) satura
Communications in Soil Science and Plant Analysis. Publicado em: 2011
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12. Melhoramento vegetal participativo com ênfase na eficiência nutricional.
ABSTRACT: Participatory plant breeding uses a concept that joint formal (official researches institutions) and informal sector (farmers communities), combining the capabilities and the knowledge of both, and farmer's experiences, practices, and preferences. The goal is to join the yield improvement exploring the availabel farmer's agrobiodiversity and introd
Planaltina. Publicado em: 2011