نتایج جستجو برای: soil environment
تعداد نتایج: 685504 فیلتر نتایج به سال:
The productivity of a pasture soil (caatinga) located in the region of São João do Cariri, PB, Brazil was evaluated based an the following microbiological parameters: biomass (measured by fumigation-incubation method), activity (estimated from basal respiration and cellulose decomposition rate), qCO2, and Cmic : Corg ratio. This analysis demonstrated that livestock management in the 'caatinga' ...
The DOSoReMI.hu (Digital, Optimized, Soil Related Maps and Information in Hungary) project was started intentionally for the renewal of the national soil spatial infrastructure in Hungary. During our activities we have significantly extended the potential, how spatial soil information requirements could be satisfied. Soil property, soil type as well as functional soil maps were compiled. The se...
This review examines the effect of tillage on microbial habitat space, and the roles of microbes in in ̄uencing Ntransformation processes within a heterogeneous soil environment. Literature relating tillage to microbial processes is assessed critically focusing on (a) degrees of physical disruption and N-processes, (b) interactions between organisms and the soil pore network, and (c) the role of...
The biodegradation of phenol in laboratory-contaminated soil was investigated using the Gram-positive soil bacterium Corynebacterium glutamicum. This study showed that the phenol degradation caused by C. glutamicum was greatly enhanced by the addition of 1% yeast extract. From the toxicity test using Daphnia magna, the soil did not exhibit any hazardous effects after the phenol was removed usin...
Soil temperature, soil moisture and soil fertility were determined empirically at 63 predominantly hill sites in the South Island, New Zealand. Soil temperatures were measured at a depth of 0.5 m in four seasons and gave a standard deviation of mean annual temperature between sites of 2.2 °C. Soil moisture levels, as available water in a 0-0.5 m profile, measured seasonally, gave a standard dev...
Page Introduction 1 Alteration of the environment 2 Keduced sunlight 3 Shading with tall-growing plants 4 Shading with muslin tents 6 Shading with low and densely growing plants 7 Spraying and dusting 9 Soil management 10 Irrigation and fertilization 11 Page Soil management—Continued. Soil dryness and preirrigation 13 Green manuring _ 13 Green manure with lime and fertilizers.. 14 Time of plant...
Supplemental Material Transport and Retention of Polyvinylpyrrolidone-Coated Silver Nanoparticles in Natural Soils Dengjun Wang 1, , Deb P. Jaisi , Jing Yan , Yan Jin , Dongmei Zhou * 1 Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China 2 Department of Plant and Soil Sciences, University of Delaware, Newark...
Soil sampling for the purpose of fertility assessment is normally confined to the plough layer with little or no attention to the rooting pattern of the crop in question or the availability of subsoil nutrients. However, there is little doubt that a thorough understanding of the development and activity of plant roots in their soil environment is essential to a balanced soil fertility research ...
Approximatelly 0.6 million tons of petroleum is poured into soil, groundwater, rivers and oceans every year in China. A large amount of the oil contaminated soil has not been remediated. The contaminated soil poses a severe threat to the environment and must be taken care of. Bioremediation has become one of the most popular and promising technologies with growing demand for the remediation of ...
We reported the emergence of resistance to medical triazoles of Aspergillus fumigatus isolates from patients with invasive aspergillosis. A dominant resistance mechanism was found, and we hypothesized that azole resistance might develop through azole exposure in the environment rather than in azole-treated patients. We investigated if A. fumigatus isolates resistant to medical triazoles are pre...
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