Nutrient Release Rate
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. Broccoli in succession to pearl millet: nutrient cycling, production and soil chemical attributes
ABSTRACT For its production, broccoli requires large quantities of nutrients in relatively short periods. As a conservation technique, the no-tillage planting of broccoli over the pearl millet straw in succession may interfere with the dynamics of nutrient release, inflorescence production and the chemical attributes of the soil. The objectives of this work
Rev. Ceres. Publicado em: 2021-06
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2. Biodegradable oil-based polymeric coatings on urea fertilizer: N release kinetic transformations of urea in soil
ABSTRACT: Polymer coatings are used to control the rate of release of plant available nutrients from fertilizers as well as to reduce nutrient losses such as ammonia (NH3) volatilization. Although the literature presents several examples of materials used to coat urea, little is known about nitrogen (N) release properties such as the mechanism involved and p
Sci. agric. (Piracicaba, Braz.). Publicado em: 01/07/2019
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3. Potassium Dynamics in Ruzigrass Rhizosphere
ABSTRACT: Ruzigrass (Urochola ruziziensis) has a large capacity to take up K from the soil, including non-exchangeable forms, and can play an important role in nutrient cycling in integrated production systems. However, K transport to roots of brachiarias is not well known, nor the nutrient dynamics in the rhizosphere, where a concentration gradient may be e
Rev. Bras. Ciênc. Solo. Publicado em: 14/11/2018
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4. Decomposition and Nutrient Release Dynamics of Shoot Phytomass of Cover Crops in the Recôncavo Baiano
ABSTRACT Evaluating the decomposition dynamics of vegetative residues from cover crops can provide a better understanding of nutrient release, which is fundamental when choosing a species that is adapted to local conditions. The objective of this study was to evaluate the decomposition rates and nutrient release dynamics of the shoot phytomass of different c
Rev. Bras. Ciênc. Solo. Publicado em: 10/07/2017
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5. Nutrient Release, Plant Nutrition, and Potassium Leaching from Polymer-Coated Fertilizer
ABSTRACT The increase in food consumption and limitations in food production areas requires improved fertilizer efficiency. Slow- or controlled-release fertilizers are an alternative for synchronizing nutrient availability with the plant demands, reducing losses to the environment. The aim of this study was to evaluate the efficacy of polymer-coated KCl comp
Rev. Bras. Ciênc. Solo. Publicado em: 27/03/2017
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6. Cellulase activity and dissolved organic carbon release from lignocellulose macrophyte-derived in four trophic conditions
Abstract Considering the importance of lignocellulose macrophyte-derived for the energy flux in aquatic ecosystems and the nutrient concentrations as a function of force which influences the decomposition process, this study aims to relate the enzymatic activity and lignocellulose hydrolysis in different trophic statuses. Water samples and two macrophyte spe
Braz. J. Microbiol.. Publicado em: 2016-06
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7. Autumn Maize Intercropped with Tropical Forages: Crop Residues, Nutrient Cycling, Subsequent Soybean and Soil Quality
ABSTRACT Autumn maize intercropped with tropical forages can raise the amount of crop residues and improve nutrient cycling, favoring subsequent soybean crop. The objective of this study was to evaluate the effect of forms of implementation of intercropping of irrigated autumn maize with tropical forages on yield, decomposition, nutrient accumulation and rel
Rev. Bras. Ciênc. Solo. Publicado em: 31/05/2016
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8. Managing agricultural phosphorus to minimize water quality impacts
ABSTRACT Eutrophication of surface waters remains a major use-impairment in many countries, which, in fresh waters, is accelerated by phosphorus (P) inputs from both point (e.g., municipal waste water treatment plants) and nonpoint sources (e.g., urban and agricultural runoff). As point sources tend to be easier to identify and control, greater attention has
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-02
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9. Decomposition of Arachis pintoi and Hyparrhenia rufa litters in monoculture and intercropped systems under lowland soil.
Tropical grasslands under lowland soils are generally underutilized and the litter of forage legumes may be used to recover these degraded pastures. The objective of this work was to study the dynamics of litter decomposition of Arachis pintoi (pinto peanut), Hyparrhenia rufa (thatching grass) and a mixture of both species in a lowland soil. These treatments
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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10. Efeito da comunidade de artrópodes sobre a taxa de decomposição e liberação de nutrientes / Effect of litter arthropod community on decomposition and nutrient release rates
Atualmente diversos trabalhos têm investigado a relação entre biodiversidade e funcionamento dos ecossistemas. Apesar disso ainda não há uma posição conclusiva quanto ao assunto. O objetivo deste trabalho foi verificar se há relação entre a riqueza e a composição de espécies de artrópodes de serapilheira e as taxas de decomposição e liberaç�
Publicado em: 2009
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11. NITROGEN IN GRAPEVINE: RECOVERY, ACCUMULATION AND ALTERATIONS IN THE YIELD AND GRAPE COMPOSITION / NITROGÊNIO EM VIDEIRA: RECUPERAÇÃO, ACUMULAÇÃO E ALTERAÇÕES NA PRODUTIVIDADE E NA COMPOSIÇÃO DA UVA
The rate of nitrogen (N) in grapevines in the Rio Grande do Sul (RS) State, Southern Brazil, is established considering N content in leaves or leaves petioles and yield expectation limits. Once N fertilization needs have been diagnosed, the N is applied in indefinite times. However, N fertilization recommendations dont consider the impact of N fertilization
Publicado em: 2008
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12. Relação entre diversidade arbórea e aspectos do ciclo biogeoquímico de uma floresta monodominante de Brosimum Rubescens Taub. e uma floresta mista no Leste Mato-Grossense / Relação entre diversidade arbórea e aspectos do ciclo biogeoquímico de uma floresta monodominante de Brosimum Rubescens Taub. e uma floresta mista no Leste Mato-Grossense
Tropical monodominant forests in which one species represents more than 50% of the above ground biomass are a rare vegetation type. One of these forests is found in the eastern region of the State of Mato Grosso where the tree species Brosimum rubescens Taub. (Moraceae), accounts for more than 80% of the above ground biomass of the forest community. This sit
Publicado em: 2007