• Korean Journal of Environmental Agriculture
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• v.19 no.5
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• pp.375-381
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• 2000

Quantifying the changes of soil microbial biomass and activity of enzymes are important to understand the dynamics of active soil C and N pools. The dynamics of soil microbial biomass C and N and the activity of enzymes over entire growth period of soybean-(Glycine max (L) Merr.)-wheat (Triticum aestivum L.) sequence on a Typic Haplustert as influenced by organic manure and inorganic fertilizer N were investigated in a field experiment. The application of farmyard manure at 4 to 16 $Mg{\cdot}ha^{-1}\;y^{-1}r^{-1}$ along with fertilizer nitrogen at 50 or 180 $kg{\cdot}ha^{-1}$ increased the mean soil microbial biomass from 1.12 to 2.05 fold over unmanured soils under soybean-wheat system. Irrespective of organic and chemical fertilizer N application, the soil microbial biomass was maximum during the first two months at active growing stage of the crops and subsequently declined with crop maturity. The mean annual microbial activity was significantly increased when manure and chemical fertilizer at 8 $Mg{\cdot}ha^{-1}$ and 50/180 N $kg{\cdot}ha^{-1}$, respectively were applied. The C turnover rate decreased by 47 to 72 % when the level of farmyard manure was increased from 4 to 8 and 16 $Mg{\cdot}ha^{-1}$. There were significant correlations between biomass C, available N, dehydrogenase, phosphatase and yield of the crops.

• Journal of the Korean Society of Food Culture
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• v.21 no.1
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• pp.42-50
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• 2006

The purposes of this study were to measure the job satisfaction levels of F&B(Food & Beverage) personnel in hotel by using JDI(Job Descriptive Index), to investigate relationships between demographic variables or job type and job satisfaction, to determine the relative importance of the five facets and to identify the effects of job satisfaction on turnover intention by hotel. Questionnaire was developed and distributed to 660 employees who are currently working in food & beverage department of hotel A (Domestic independent deluxe hotel) and hotel B(international chain deluxe hotel). A total of 498 questionnaires were usable; resulting in 75.5% response rate. The survey was conducted between March 16 to 27, 2000. As a result of analysis on job satisfaction, total JDI score was 136.57 out of full mark 210. Personnel of Hotel A was more satisfied significantly with work itself (p<.01), supervision (p<.001), co-worker (p<.01), total JDI (p<.001) than those of hotel B. Total JDI and work itself score were higher on employees of front of the house than those of back of the house in both of hotels. Payroll was the most important facet on job satisfaction. Finally, work itself (p<.001) and payroll (p<.05) had a significant effect on turnover intention in hotel A and work itself (p<.001), supervision (p<.05) and promotion (p<.05) did in hotel B. The findings indicated the necessity of human resource management apt to the vision of enterprise and the organizational culture.