Plant N Recovery
Mostrando 1-12 de 69 artigos, teses e dissertações.
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1. Adubação nitrogenada e intervalos de colheita na produtividade e nutrição da erva-mate e em frações de carbono e nitrogênio do solo
Resumo Na erva-mate (Ilex paraguariensis) o principal produto colhido é composto por folhas (FO) e galhos finos (GF), resultando em elevada exportação de nutrientes, dentre eles o N. As informações técnico-científicas disponíveis para subsidiar uma recomendação da adubação nitrogenada racional são insuficientes, o que põe em risco a sustentabil
Ciênc. Florest.. Publicado em: 02/12/2019
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2. Comparison of 15N isotope methods to determine the recovery efficiency of nitrogen from green manure
Resumo: O objetivo deste trabalho foi avaliar três métodos isotópicos de aplicação de 15N ao solo para determinar a eficiência de recuperação do nitrogênio derivado da adubação verde pelo milho (Zea mays). Utilizou-se o delineamento experimental de blocos ao acaso, com seis repetições. Os tratamentos consistiram de três métodos isotópicos de
Pesq. agropec. bras.. Publicado em: 21/10/2019
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3. Grain yield, efficiency and the allocation of foliar N applied to soybean canopies
ABSTRACT: Soybean [Glycine max (L.) Merr.] grain yield is closely associated with the level of optimal nitrogen (N) supply, especially during the reproductive stages. Foliar fertilization with low rates of N have been considered as a strategy for furnishing additional N and enhancing grain yields. Field studies using 15N tracer were conducted over two growin
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-07
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4. Use efficiency and responsivity to nitrogen of common bean cultivars
RESUMO O feijão é a principal fonte de proteína dos países subdesenvolvidos, e o nitrogênio (N) é um dos nutrientes que mais limita a produtividade dessa cultura. Objetivou-se com esse trabalho, sob condição de campo: a) determinar por meio dos índices de eficiência como o N é utilizado por 16 cultivares de feijoeiro comum; and b) classificar esta
Ciênc. agrotec.. Publicado em: 19/06/2019
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5. Nitrogen recovery efficiency for corn intercropped with palisade grass
ABSTRACT Intercropping corn and palisade grass is a technique to increase straw production, soil C contents, nutrient cycling and crop yield. However, concerns arise from nitrogen (N) uptake by the intercropping crop causing reduction in the yield of the corn. Our objective was to evaluate N recovery efficiency (NRE), and the N dynamics in the soil-plant sys
Bragantia. Publicado em: 18/10/2018
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6. Molecular farming of antimicrobial peptides: available platforms and strategies for improving protein biosynthesis using modified virus vectors
Abstract The constant demand for new antibiotic drugs has driven efforts by the scientific community to prospect for peptides with a broad spectrum of action. In this context, antimicrobial peptides (AMPs) have acquired great scientific importance in recent years due to their ability to possess antimicrobial and immunomodulatory activity. In the last two dec
An. Acad. Bras. Ciênc.. Publicado em: 18/10/2018
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7. Nitrogen Transfer from Cover Crop Residues to Onion Grown under Minimum Tillage in Southern Brazil
ABSTRACT Nitrogen derived from cover crop residues may contribute to the nutrition of onion grown under minimum tillage (MT) and cultivated in rotation. The aim of this study was to evaluate the N transferred from different cover crop residues to the onion crop cultivated under MT in southern Brazil. In June 2014, oilseed radish, black oat, and oilseed radis
Rev. Bras. Ciênc. Solo. Publicado em: 31/08/2017
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8. Recovery of a dystrophic Red Latosol (Oxisol) and pasture as a function of gypsum in the Cerrado biome
ABSTRACT This study was conducted to evaluate the chemical effects of gypsum on the soil and on the recovery of a pasture established with palisade grass (Urochloa brizantha) in a Cerrado biome region. A randomized block experimental design with six treatments and four replications was adopted. Treatments consisted of five levels of gypsum (0, 450, 900, 1800
R. Bras. Zootec.. Publicado em: 2017-04
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9. Omission and Resupply of Nitrogen Affect Physiological and Enzymatic Activities and the Gene Expression of Eucalypt Clones
ABSTRACT: The mineral nutrient uptake of plants in the field occurs in pulses, due to variations in the substance concentrations at the root surface. The fluctuations in nutrient supply probably induce changes in the plant, which are to date unknown for Eucalyptus. This study evaluated these changes in plant growth, nutritional status, photosynthesis, and ge
Rev. Bras. Ciênc. Solo. Publicado em: 15/12/2016
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10. Lipopeptide production by Bacillus subtilis R1 and its possible applications
Abstract The possible application of a bacterial strain - Bacillus subtilis R1, isolated from an oil contaminated desert site in India, as biocontrol agent and its biosurfactant in microbial enhanced oil recovery are discussed. The biosurfactant production in minimal medium was carried out at different temperatures and salt concentrations, where it produced
Braz. J. Microbiol.. Publicado em: 2016-12
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11. Rhizobia Isolated from Coal Mining Areas in the Nodulation and Growth of Leguminous Trees
ABSTRACT An alternative for recovery of areas degraded by coal mining is revegetation with rapidly growing leguminous trees, which often do not establish in low fertility soils. The objective of this study was to evaluate the efficiency of native rhizobia isolated from coal mining areas in the nodulation and growth of leguminous trees. We isolated 19 strains
Rev. Bras. Ciênc. Solo. Publicado em: 26/04/2016
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12. 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