15n Labeled Fertilizer
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Residual recovery and yield performance of nitrogen fertilizer applied at sugarcane planting
ABSTRACTThe low effectiveness of nitrogen fertilizer (N) is a substantial concern that threatens global sugarcane production. The aim of the research reported in this paper was to assess the residual effect of N-fertilizer applied at sugarcane planting over four crop seasons in relation to sugarcane crop yield. Toward this end three field experiments were es
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-12
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2. Contribution of nitrogen from sugarcane harvest residues and urea for crop nutrition
Sugarcane (Saccharum spp.) harvested without burning provides a substantial amount of remains (trash) on soil profiles which can be decomposed and release nutrients contributing to reduce fertilizer needs. The contribution of nitrogen (N) from sugarcane plant residues and fertilizer in sugarcane nutrition was assessed. Plant cane treatments were micro plots
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-10
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3. Estudo da fixação biológica do nitrogênio em leguminosas (família Fabaceae) arbóreas tropicais através do enriquecimento isotópico do 15N / Estimates of biological nitrogen fixation by tropical legume trees (Fabaceae) using 15N labeled fertilizer
A família Fabaceae abundante nos trópicos, desperta grande interesse para o uso em recuperação de áreas degradas, já que em sua maioria, são lenhosas e perenes, se adaptam aos mais diversos ecossistemas brasileiros e são capazes de fazer associações simbiônticas com bactérias pertencentes ao gênero Rhizobium, que fixam nitrogênio atmosférico f
Publicado em: 2010
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4. Balanço de nitrogênio e enxofre no sistema solo-cana-de-açúcar no ciclo de cana-planta / Nitrogen and sulfur balance in the soil-sugarcane system during the plant cane cycle
This works objective was to evaluate the use and distribution of nitrogen and sulfur added to the soil as fertilizers in the soil-sugarcane system (plant cane), using the stable isotopes 15N and 34S. The study also aimed to evaluate the contribution of nitrogen mineralized from sugar cane crop residues labeled with 15N and incorporated into the soil, in a co
Publicado em: 2007
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5. Destino do nitrogênio (15N) do fertilizante em uma cultura de café / The fate of fertilizer nitrogen (15N) in a coffee crop
The coffee is one of the most important agribusiness products of Brazil and, although its management practices are already well defined, several cropping aspects still need a deeper understanding. Among these the nutrition of the coffee plant in respect to nitrogen is one of the main subjects needing more clarification. To contribute to this aspect, several
Publicado em: 2006
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6. Dinâmica do nitrogênio na cultura do milho (Zea mays L.), em cultivo sucessivo com aveia preta (Avena strigosa), sob implantação do sistema plantio direto / Nitrogen dynamics in maize (Zea Mays L) and black oats (Avena srigosa) successive cropping under the introduction of the no-tillage system
The general objective of this work was to study the dynamics of nitrogen in the soil-plant system of two maize crops with a black oats one in between, introducing the no-tillage system. Besides, fertilizing the first maize crop with 15N enriched nitrogen fertilizer, it was also objective of this work to assess the total and the derived from fertilizer nitrat
Publicado em: 2006
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7. Nitrogen fertilizer management and utilization of nitrogen (15N) from urea, millet and sunnhemp by corn under no-tillage in cerrado soil / Manejo da adubação nitrogenada e utilização do nitrogênio (15N) da uréia, do milheto e da crotalária pelo milho sob semeadura direta em solo de cerrado
Nitrogen is the most absorbed nutrient by corn crop and most affect the grains yield, and its dynamic in soil-plant system is conditioned by management. The research was carried in the Experimental Farm of Faculty of Engineering, Sao Paulo State University (UNESP), Ilha Solteira, located in Selvíria-MS, in a dystrophic Red Latosol, cerrado phase, during 200
Publicado em: 2005
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8. Corn fertilization with ammonium sulfate in a Brasília Cerrado soil under Brachiaria decumbens pasture. / Fertilização com sulfato de amônio na cultura do milho em um solo de cerrado de Brasília sob pastagem de Brachiaria decumbens.
Crop/livestock integration systems have been adopted in the cerrados, since this is a technology for pasture recovery and renovation, used in association with annual crops, such as corn. In this system, the pasture is recovered and maintained productive by crop fertilization. Nitrogen is prominent among the nutrients applied in fertilizations; it undergoes s
Publicado em: 2005