Nutrient Cycling
Mostrando 1-12 de 117 artigos, teses e dissertações.
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1. INTERACTIONS BETWEEN GREEN MANURE AND ROCK PHOSPHATE ON SOIL NUTRIENT CYCLING ON FAMILY FARMS
RESUMO A agricultura familiar é importante para a produção de alimentos destinados ao consumo humano, porém é carente de recursos para investir na fertilidade do solo de suas lavouras. O objetivo deste estudo foi analisar se o uso de adubos verdes aumenta a fertilidade do solo quanto os nutrientes N, P e K com baixo risco ambiental para a produção agr
Revista Caatinga. Publicado em: 2022
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2. 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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3. Enzymatic efficiency of the decomposing microbiota: what does really matter for aquatic macrophytes invasions?
ABSTRACT Biological invasions have negative impacts on different ecosystem-level functions, such as nutrient cycling. In aquatic environments, exotic litter can change the activity of the decomposer microbiota. We tested whether litter quality, litter decay, and enzyme activity differed between nativeEgeria densaand exoticHydrilla verticillata. The invasive
Acta Bot. Bras.. Publicado em: 2021-03
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4. Straw management effects on sugarcane growth, nutrient cycling and water use in the Brazilian semiarid region
ABSTRACT It was evaluated how straw management modifies the development, growth, nutrient cycling and crop water productivity of sugarcane in the semiarid region of Brazil. The experiment was carried out using two plots with 5 ha each, being one without straw on the soil surface and one with 26 Mg·ha-1 covering the soil. Sugarcane growth and development and
Bragantia. Publicado em: 2020-12
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5. Conservation system improves soil microbial quality and increases soybean yield in the Northeastern Cerrado
ABSTRACT The conservation tillage systems is based on the surface protection by crop residue and reduced soil disturbance. These two principles can favor the soil quality and promote sustainable agricultural systems. The study was developed with the objective of measure soil microbial biomass, soil basal respiration, enzymatic activity and soybean yield in c
Bragantia. Publicado em: 2020-12
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6. Nutrition of tree species in tropical dry forest and rainforest environments
ABSTRACT Knowledge of the nutritional efficiency of species can help revegetation of forest areas, guiding the use of species that best adapt to environmental humidity, altitude and diversity. The objective of this study was to evaluate the nutrient utilization efficiency of N, P, K, Ca and Mg of dominant species in tropical dry forest and rainforest environ
Rev. Ceres. Publicado em: 2020-02
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7. Different Patterns Of Nutrient Cycling In Contiguous Phytophysiognomies Of Atlantic Forest, Brazil
ABSTRACT The present study aimed to evaluate fine aboveground litterfall, deposition of nitrogen and phosphorus from total litterfall and leaf litter decomposition in areas of tall forest (Mata Alta) and low forest on sandy soils (Mussununga) in southeastern Brazil. Fine litterfall was collected monthly for two years (from June/2007 to May/2009) in 10 conica
Floresta Ambient.. Publicado em: 13/01/2020
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8. Métodos de avaliação da ciclagem de nutrientes no bioma Cerrado: uma revisão sistemática
Resumo Em sistemas florestais, a forma natural de aporte de nutrientes se dá através da serapilheira, a qual compreende todo material vegetal depositado ao solo. Logo, vista a importância do tema, o presente trabalho objetivou realizar uma revisão sistemática sobre as diferentes metodologias utilizadas na temática da serapilheira e ciclagem de nutrient
Ciênc. Florest.. Publicado em: 30/09/2019
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9. Contribution of corn intercropped with Brachiaria species to nutrient cycling1
RESUMO A dinâmica de biomassa e nutrientes do milho pode ser alterada quando consorciado com Brachiaria (syn. Urochloa spp.). Objetivou-se investigar a dinâmica de biomassa, nitrogênio (N), fósforo (P) e potássio (K) para sistemas de produção de milho consorciado com espécies de Brachiaria. Campos experimentais foram conduzidos durante a safra e safr
Pesqui. Agropecu. Trop.. Publicado em: 26/09/2019
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10. Restoring Ecological Functions Using Agroforestry Systems in Riparian Forests
ABSTRACT Agroforestry systems and restoration models were compared with native forests by examining the restoration of ecological processes that generate stability, resilience and reliability. The stability assessment was obtained using indicators of diversity, structure and functionality. Indicators of soil protection and nutrient cycling were also used to
Floresta Ambient.. Publicado em: 05/09/2019
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11. Effects of the introduction of an omnivorous fish on the biodiversity and functioning of an upland Amazonian lake
RESUMO A introdução de espécies não nativas é uma ameaça aos ecossistemas de água doce. Embora a onivoria e a predação intraguilda sejam comuns nesses sistemas, os efeitos da introdução de peixes onívoros nas comunidades pelágicas e litorâneas é pouco conhecido. Nós testamos as previsões da teoria da teia trófica considerando os efeitos da
Acta Amaz.. Publicado em: 12/08/2019
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12. Spatial-temporal variation in litterfall in seasonally dry tropical forests in Northeastern Brazil
Resumo A produção de serapilheira é essencial para a ciclagem de nutrientes em ecossistemas terrestres. De Novembro de 2009 a Outubro de 2011, foi analisada a produção de serapilheira em duas áreas de Caatinga, um tipo de Floresta Tropical sazonalmente Seca localizada no Cariri Paraibano, na região do semiárido da Paraíba, Nordeste do Brasil. Uma da
Braz. J. Biol.. Publicado em: 05/08/2019