Microbial Respiration
Mostrando 1-12 de 137 artigos, teses e dissertações.
-
1. Effects of different legume green manures on tropical soil microbiology after corn harvest
ABSTRACT Legume green manure is a popular practice for sustainable agriculture in tropical environments. The use of grain, forage and purely green manure legumes in a subhumid tropical area in Northeast Brazil was investigated to determine the total C and N contents and estimate C-microbial biomass, soil basal respiration, microbial and metabolic quotients,
Bragantia. Publicado em: 2020-12
-
2. 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
-
3. Cover cropping system and mulching can shape soil microbial status in fruit orchards
ABSTRACT The use of cover crop in agricultural fields has been well elucidated, especially regarding nitrogen fixation from legume crops and their function as weed protection. Furthermore, to cover crops can benefit the soil microbial community. This study aimed to evaluate and compare the benefits of mulching and cover cropping systems on soil microbial gro
Sci. agric. (Piracicaba, Braz.). Publicado em: 04/11/2019
-
4. Soil Microbial Biomass as an Edge Effect Indicator in Semi-Deciduous Seasonal Forest Fragments
ABSTRACT This work had the objective to evaluate the activity and microbial biomass of the soil as an indicator of edge effect in Semi-Deciduous Seasonal Forest fragments. Three fragments of different sizes (small, medium and large) located in the Southwest region of Bahia state were evaluated, in which three sampling ranges were defined in each, and soil sa
Floresta Ambient.. Publicado em: 12/09/2019
-
5. Chemical attributes and microbial activity of soil cultivated with cassava under different cover crops
RESUMO O aporte de resíduos vegetais no solo proporcionado pelos sistemas conservacionistas de manejo aumenta a quantidade de substrato, altera a fertilidade e aumenta a atividade biológica do solo. O objetivo deste estudo foi avaliar a influencia dos sistemas de manejo nos atributos químicos e na atividade microbiana do solo sob cultivo de mandioca. Com
Rev. bras. eng. agríc. ambient.. Publicado em: 15/07/2019
-
6. Biochemical and Biological Properties of Soil from Murundus Wetlands Converted into Agricultural Systems
ABSTRACT The implementation of conservationist systems that improve soil properties and reduce the impacts of the conversion of native areas is fundamental for feasible agricultural exploitation. This study aimed to evaluate the impact on soil biological properties caused by the conversion of murundus fields into agricultural systems and verify the ability o
Rev. Bras. Ciênc. Solo. Publicado em: 19/06/2019
-
7. Short-term effects of byproduct amendments and lime on physicochemical and microbiological properties of acidic soil from Jiaodong Peninsula of China
RESUMO: As influências do emprego de subprodutos que contêm silício, cálcio, magnésio e potássio, sobre a qualidade do solo ácido na Península de Jiaodong da China, foram estudadas e comparadas com a da cal através do monitoramento das propriedades físico-químicas e atividades enzimáticas do solo ácido ao longo de um 120- período do dia. Os re
Cienc. Rural. Publicado em: 19/06/2019
-
8. Physical, Chemical, and Microbiological Properties of Soil under Different Plant Covers in the Seridó Desertification Region in the Brazilian Semiarid
ABSTRACT The Seridó Desertification Region is a result of inadequate management of the native Caatinga vegetation, which generated degraded areas with little or no capacity for plant production. The area has experienced a succession of different land uses, but little is known about the impact of these changes. The present study tested the hypothesis that th
Rev. Bras. Ciênc. Solo. Publicado em: 28/03/2019
-
9. Microbial biomass and organic matter in an oxisol under application of biochar
ABSTRACT The aim of this study was to investigate the short- and medium-term effect of biochar on soil microbial properties, organic carbon and nitrogen in an Oxisol from Brazil. The experiment was conducted in a randomized block design consisting of five levels of biochar (0, 2, 4, 8 and 16 Mg∙ha–1) with and without of synthetic fertilizer: 0 and 200 kg
Bragantia. Publicado em: 2019-03
-
10. Soil Microbial Attributes Under Agroforestry Systems in the Cerrado of Minas Gerais
ABSTRACT The aim of this study was to evaluate the soil microbiological attributes of two Agroforestry Systems (AFS) in the city of Grão Mogol-MG considering two soil classes (Udox and Aqualf). Three composite samples were collected from the 0-5 cm soil depth layer. Each sample was subsequently divided into five replications to evaluate the carbon of soil
Floresta Ambient.. Publicado em: 19/03/2018
-
11. Soil CO2 Efflux Measurements by Alkali Absorption and Infrared Gas Analyzer in the Brazilian Semiarid Region
ABSTRACT The CO2 emission from the soil surface, commonly referred to as soil CO2 efflux (ECO2) or soil respiration, is the sum of processes that include root respiration and microbial activity. Measuring this evolution is important to establish sustainable land use models and to estimate global fluxes of carbon, which affect climate change. Despite its impo
Rev. Bras. Ciênc. Solo. Publicado em: 22/01/2018
-
12. Glucose mineralization in soils of contrasting textures under application of S-metolachlor, terbuthylazine, and mesotrione, alone and in a mixture
ABSTRACT Microbial adaptation may occur in surface soils under agricultural uses exposed to herbicides. However, little is known about herbicide mixture effects in the soil, especially in tropical regions like Brazil. The aim of this study was to evaluate glucose mineralization in soils of contrasting textures (sandy clay and sandy loam) from areas cultivate
Bragantia. Publicado em: 18/12/2017