Temperature Range Of Soil
Mostrando 13-24 de 64 artigos, teses e dissertações.
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13. Caracterização de espécies paramagnéticas em sementes por ressonância paramagnética eletrônica
Paramagnetic species were characterized in the seeds of radish wild, rice, mustard, wheat, oats, sorghum, sunflower, soybean, cotton, beans, maize and barley by EPR (Electron Paramagnetic Resonance). Some paramagnetic species present in the soil were also investigated, such as goethite, hematite, magnetite, and ferrihydrite. EPR experiments were performed at
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/03/2012
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14. Selection of thermophilic and thermotolerant fungi for the production of cellulases and xylanases under solid-state fermentation
Twenty-seven thermophilic and thermotolerant fungal strains were isolated from soil, decaying organic matter and sugarcane piles based on their ability to grow at 45ºC on medium containing corn straw and cardboard as carbon sources. These fungi were identified in the genera Aspergillus, Thermomyces, Myceliophthora, Thermomucor and Candida. The majority of t
Braz. J. Microbiol.. Publicado em: 2012-09
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15. Optimization of extracellular thermophilic highly alkaline lipase from thermophilic Bacillus sp isolated from Hotspring of Arunachal Pradesh, India
Studies on lipase production were carried out with a bacterial strain (Bacillus sp LBN 2) isolated from soil sample of hotspring of Arunachal Pradesh, India. The cells were cultivated in a mineral medium with maximum production at 1% groundnut oil. The optimum temperature and initial medium pH for lipase production by the organism were 50ºC and 9.0 respecti
Brazilian Journal of Microbiology. Publicado em: 2012-03
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16. Amylase production by solid-state fermentation of agro-industrial wastes using Bacillus sp.
Solid state fermentation was carried out using various agro- industrial wastes with the best amylase producing strain isolated from soil. Different physicochemical conditions were varied for maximum enzyme production. The strain produced about 5400 units/g of amylase at 1:3 moisture content, 20% inoculum, after 72 h of incubation with Mustard Oil seed cake a
Braz. J. Microbiol.. Publicado em: 2011-12
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17. Compactação do solo: consequências para o crescimento vegetal.
ABSTRACT: Soil compactation is problem in modern agriculture. Over cultivation, intensive cropping and inappropriate soil management leads to soil compactation. There are important factors which directly affect plant growth, such as water, oxygen, temperature and mechanical resistance to seedling emergence or root growth. By the way, factors indirectly affec
Planaltina. Publicado em: 2011
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18. A screening method for detection of hexavalent chromium levels in soils
A rapid and low cost method to determine Cr(VI) in soils based upon alkaline metal extraction at room temperature is proposed as a semi-quantitative procedure to be performed in the field. A color comparison with standards with contents of Cr(VI) in the range of 10 to 150 mg kg-1 was used throughout. For the different types of soils studied, more than 75% of
Química Nova. Publicado em: 2011
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19. TEMPERATURE AND HUMIDITY OF A SANDY LOAM SOIL CULTIVATED WITH MAIZE / TEMPERATURA E UMIDADE DE UM SOLO FRANCO ARENOSO CULTIVADO COM MILHO
Water is a key factor for crop yields, and causes major fluctuations in productivity, especially for maize cultivated in southern Brazil. Mulching the soil surface, temperature and soil moisture are factors closely linked and, when handled properly, can provide the increases crop yields. The soil water conservation is an important aspect for more stable and
Publicado em: 2010
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20. Longevidade foliar, compostos fenolicos e nitrogenados em arvores e lianas de um fragmento de Cerrado na Estação Experimental de Itirapína, São Paulo / Leaf life span, nitrogenous and phenolic compunds in trees and lianas from a Cerrado fragment in the Itirapina experimental station in São Paulo
Trees and lianas present different strategies for allocating resources during the phonological cycle. Whereas Lianas are important floristic components and account for a significant number of rainforest species, few studies have been conducted in the Cerrado (a savanna like vegetation) biome. The duration of the leaf life span in different species reflects b
Publicado em: 2010
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21. EVAPOTRANSPIRAÇÃO DA MELANCIA IRRIGADA POR MEIO DO SEBAL, BALANÇO HÍDRICO E CORRELAÇÕES TURBULENTAS / ESTIMATING IRRIGATED WATERMELON EVAPOTRANSPIRATION USING SEBAL, SOIL-WATER BALANCE AND EDDY CORRELATIONS
In applications of the SEBAL (Surface Energy Balance Algorithm for Land) algorithm parameters for physical processes adjusted for other regions of the planet are commonly used. Therefore, there is a need for validation of the estimates made with the algorithm compared with other conventional methods of estimating evapotranspiration. Thus, this study main goa
Publicado em: 2009
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22. Uso de imagens MODIS no mapeamento de bacias hidrogrÃficas
This research focuses on display applications of MODIS (Moderate Resolution Spectroradiometer) and the different types of its products. The MODIS was design for analysis of changes on a global scale, thus having different environmental applications. This sensor has 36 bands and 44 products for different types of searches. The spatial resolution of MODIS imag
Publicado em: 2009
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23. Strategy of monitoring and automation in irrigation systems using communication devices in wireless sensor network / Estratégia de monitoramento e automação em sistemas de irrigação utilizando dispositivos de comunicação em redes de sensores sem fio
The goal of this study was to develop strategies for monitoring and automated irrigation systems using FDR capacitance sensors to collect data of water content in the soil through Wireless Sensor Network (WSN). The FDR capacitance sensors were developed in the Department of Agricultural Engineering (DENA) pertain UFC. Were used 14 FDR capacitance sensors and
Publicado em: 2009
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24. Effect of components of the matrix in pesticide analysis by gas chromatography / Efeito de componentes da matriz na análise de agrotóxicos por cromatografia gasosa
This work aimed to systematically study the matrix effect on the measurement of pesticides chlorpyrifos, λ−cyhalothrin, cypermethrin and deltamethrin by gas chromatography with electron capture detector. The matrix effect is attributed to the presence of co-extractives in the organic phase during extraction. In this work, the phenomenon matrix eff
Publicado em: 2009