• Title/Summary/Keyword: Cultivating condition

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Cultivating Status of Paeonia lactiflora Pallas in Central Part of Gyeong Bug Province (경북 중부지역에서의 작약 재배실태)

  • Kim, Se-Jong;Park, So-Deuk;Whang, Wheong-Baeg;Kim, Jae-Cheol
    • Korean Journal of Medicinal Crop Science
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    • v.3 no.3
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    • pp.259-264
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    • 1995
  • This study was carried out to find cultivation condition of peony in Euiseong district from 1994 to 1995. 1. Age distribution in cultivation of peony was from 30's to 50's and cultivated years was mainly from 5 years to 10 years, but there was more than 15 years 2. Cultivating area per house hold were 1300 pyeong average, there were moderate $400{\sim]1000$ pyeong and also those are occupied 22.6% more than 2000 pyeong. 3. The mothods of transplanting in Euiseong peony which Euiseong district was mostly divided peony but Yeongchen district used seedling stock. No. of sprout was mostly $3{\sim}4$ and planting time was mainly from Mid to Late of October. 4. The percentage of sterilization of soil and seedling stock was 77. 4%, in mulching by vinyl in tran­splanting 64. 5% in black vinyl and 25. 8% in white one. 5. Number of plant in peony planting was $3000{\sim}4000$ plant per l0a even more there was more than 8000 plant. 6. Chemical spraying time in peony field was 2 time in $1{\sim}2$ years cultivating, and $3{\sim}4$ time in $3{\sim}4$ years one. 7. Condition of fertilizer application in peony field was 40% in non-application, but $56.7{\sim}76.7%$ in 2 year to 3 years, and the time of fertilizer was mainly 3 time. 8. Drying time peony after havesting was from 12 to 24 hours by briquet stove and 24 hours by ma­chine of hot wind, also dry method of peony was mixed briquet stove and hot wind machine.

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Effect of some Different Cultivating Conditions on the Growth and Uptake of Phosphorus in Garlic Plants (Allium sativum L.) (마늘(Allium Sativum L.)에 있어서 몇가지 재배조건(栽培條件)이 생육(生育) 및 인산흡수(燐酸吸收)에 미치는 영향(響影))

  • Ahn, Hak-Soo
    • Applied Biological Chemistry
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    • v.11
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    • pp.167-171
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    • 1969
  • Gartic bulblets were planted to investigate the effect of some different cultivating conditions on the growth and bulb formation of the garlic plants (Allium sativum L.) Two different conditions namely perfect and imperect aerobic condition, and 3 different fertilizer levels was made. The split plot design was adopted for this experiment. 1) For the growth rate, under the imperfect aerobic condition, the plant height was more increased than that of perfect aerobic condition no relation to the fertilizer levels. 2) With respect to the fresh weight of garlic, the similar tendency to the growth rate was observed, but dry weight was did not. 3) The uptake of phosphorus was found to be increased in the imperfect condition. It could there be concluded that imperfect aerobic condition seems to be much favorable condition than the perfect aerobic condition to the development of garlic bulbs.

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Sensor Location Estimation in of Landscape Plants Cultivating System (LPCS) Based on Wireless Sensor Networks with IoT

  • Kang, Tae-Sun;Lee, Sang-Hyun
    • International Journal of Internet, Broadcasting and Communication
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    • v.12 no.4
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    • pp.226-231
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    • 2020
  • In order to maximize the production of landscape plants in optimal condition while coexisting with the environment in terms of precision agriculture, quick and accurate information gathering of the internal environmental elements of the growing container is necessary. This may depend on the accuracy of the positioning of numerous sensors connected to landscape plants cultivating system (LPCS) in containers. Thus, this paper presents a method for estimating the location of the sensors related to cultivation environment connected to LPCS by measuring the received signal strength (RSS) or time of arrival TOA received between oneself and adjacent sensors. The Small sensors connected to the LPCS of container are known for their locations, but the remaining locations must be estimated. For this in the paper, Rao-Cramer limits and maximum likelihood estimators are derived from Gaussian models and lognormal models for TOA and RSS measurements, respectively. As a result, this study suggests that both RSS and TOA range measurements can produce estimates of the exact locations of the cultivation environment sensors within the wireless sensor network related to the LPCS.

Survey and Analyses of Farming Condition and Nonpoint Source Pollution in the Flood Control Area of the Multi-purpose Dams (다목적댐 홍수조절용지 내 경작실태 및 비점원오염부하량 조사 분석)

  • Chung Ji-Eun;Chung Sang-Ok
    • KCID journal
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    • v.10 no.1
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    • pp.44-52
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    • 2003
  • This study surveyed farming condition and the effects of nonpoint source pollution loading by cultivating in the flood control area of multi-purpose dams. According to the multi-purpose dam management regulation, cultivation can be permitted between norma

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Production and Characterization of Fibrinolytic Enzyme: Optimal Condition for Production of the Enzyme from Bacillus sp. KP-6408 Isolated from Chungkook-jang (새로운 혈전용해 효소의 생성 및 특성: 청국장에서 분리한 Bacillus sp. KP-6408로부터 효소 생성의 최적조건)

  • 박인식;길지은;김기남
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.27 no.1
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    • pp.51-56
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    • 1998
  • A bacteium, KP-6408, capable of hydrolyzing fibrin was isolated from Chungkook-jang, which was possibly identified as a strain of Bacillus sp. The effects of culture condition and medium composition on the enzyme production were investigated. Among nitrogen sources tested, yeast extract was the most effective for the enzyme production, and the level of the concentration for the optimal enzyme production was 0.2%(w/v). For carbon sources, glucose was the best for the enzyme production with the level of 2.0%(w/v). The enzyme was maximally produced by cultivating the enzyme production with the level of 2.0%(w/v). The enzyme was maximally produced by cultivating the organism at the liquid medium of the initial pH 8.0 and temperature of 4$0^{\circ}C$. In Chungkook-jang fermentation, the enzyme was maximally produced when incubated at 35$^{\circ}C$ for 24 hrs using soybean as a solid medium. The addition of various rice starch to the soybean in Chungkook-jang fermentation lowered the enzyme production.

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Research on composting of sewage sludge using dryer facility with indirect heating system (간접가온 건조방식의 건조시설을 이용한 하수슬러지 퇴비화에 관한 연구)

  • Baik, Seon-Jai;Han, In-Sup;Choi, Ick-Hoon;Kang, Sung-Hyo;Hong, Seong-Min
    • Journal of Korean Society of Water and Wastewater
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    • v.28 no.3
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    • pp.299-304
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    • 2014
  • The need of reusing sewage sludge is highly increasing as the amount of domestic sewage sludge is growing and sewage management strategies were reinforced. Accordingly, in this research, we studied the composting possibility of sludge in sewage treatment plant J, using dryer facility with indirect system by conducting component analysis of dried sludge and experiment on cultivating crops. It was observed from the component analysis, that the dried sludge is appropriate for both decomposed manure standard of Ministry of Environment and fertilizer standard of Rural Development Administration. Besides, in the experiment on cultivating lettuce, the experimental group(soil + dried sludge) was superior to the control group(soil + bed soil) in apparent condition of leaves tensity and damage by disease and pest. In case of cultivating tomato, the experimental group showed stronger durability of fruits dangling on stems compared to the control group after 9 weeks. Consequently, the excess sludge dried by indirect heating system in the sewage treatment plant J is appropriate for the standard of both Ministry of Environment and Rural Development Administration and show good result in experiment on cultivating crops therefore it can be reused for composting.

Analysis of Differential-expressed Proteins of Acidithiobacillus ferrooxidans Grown under Phosphate Starvation

  • He, Zhiguo;Zhong, Hui;Hu, Yuehua;Xiao, Shengmu;Liu, Jiarshe;Xu, Jin;Li, Guiyuen
    • BMB Reports
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    • v.38 no.5
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    • pp.545-549
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    • 2005
  • Acidithiobacillus ferrooxidans is one of the most important bacterium used in bioleaching, and can utilize $Fe^{2+}$ or sulphide as energy source. Growth curves for Acidithiobacillus ferrooxidans under phosphate starvation and normal condition have been tested, showing lag, logarithmic, stationary and aging phases as seen in other bacteria. The logarithmic phases were from 10 to 32 hours for Acidithiobacillus ferrooxidans cultivated with normal cultivating condition and from 20 to 60 hrs for Acidithiobacillus ferrooxidans cultivated phosphate starvation. Differences of protein patterns of Acidithiobacillus ferrooxidans growing in case of normal or phosphate starvation were separately investigated after cultivation at $30^{\circ}C$ by the analysis of two-dimensional gel electrophoresis (2-DE), matrix-assisted laser desorption/ionization (MALDI)-Mass spectrometry. There were total 6 protein spots identified, which were Recombination protein recA, RNA helicase, AP2 domain-containing transcription factor, NADH dehydrogenase I chain D, Hyothetical protein PF1669, and Transaldolase STY3758. From the 6 identified protein spots, 3 proteins were found to be decreased in expression at the cultivating condition of phosphate starvation, while another three upregulated.

A Study for Farmers to Reduce Work Load on the Different Working Conditions (part I) - Cultivating Lettuce in the Winter Greenhouse - (농민의 작업환경별 노동부담 경감방안에 관한 연구(I) -겨울철 비닐하우스에서 상추재배 작업을 중심으로-)

  • 김명주;최정화
    • Korean Journal of Rural Living Science
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    • v.8 no.2
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    • pp.111-117
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    • 1997
  • In this study we tried to give a decision on propriety of working conditions, to present ideas on reducing work loads. and to grope for efficiency of agricultural works. For this we examined the actual conditions of working environment, farmer's clothes, working posture, working methods, working time, resting state, fatigue recovery methods during cultivating lettuce in the winter greenhouse. And Ive improved harmful factors that affect farmer's health by considering results of previous study and farmer's subjective sensation. And we measured, compared, and analyzed the farmer's work loads before and after improvement. The results of this study are as follows ; 1. According to examine the actual conditions of cultivating lettuce in the winter greenhouse, farmers have experienced physical and mental chronic fatigue on the basis of the hot and humid crops-centered working environment, the rough ground condition, inconsistent arrangement of working stand and sorter, heavy-weared habits. and unsuitable working posture. 2. When we improved harmful factors that affect farmer's health, conformed the positive effects on important work efficiency index such as heart rate, electromyovolume, body temperature, and microclimate inside clothing and work loads were decreased by improving the hot and humid working environment, eliminating the hillock and obstacles of working path. deliver way, arranging the working stand and sorter consistantly, decreasing the clothing weight, improving the working postures and methods as using assistant appliances, alloting the working time and sequence effectively and presenting the light gymnastic exercises and rest for fatigue restoration.

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A Study for Farmers to Reduce Work Load on the Different Working Conditions (part II) - Cultivating Welsh Onion in the Summer Ground - (농민의 작업환경별 노동부담경감방안에 관한 연구(II) - 여름철 노지에서 대파재배 작업을 중심으로 -)

  • 김명주;최정화
    • Korean Journal of Rural Living Science
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    • v.8 no.2
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    • pp.119-124
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    • 1997
  • In this study we tried to give a decision on propriety of working conditions, to present ideas on reducing work loads, and to grope for efficiency of agricultural works. For this we examined the actual working conditions of cultivating welsh onion in the summer ground. And we improved harmful factors that affect farmer's health by considering results of previous study and farmer's subjective sensation. And we measured. compared, and analyzed the farmer's work loads before and after improvement. The results of this study are as follows ; 1. According to examine the actual working conditions of cultivating welsh onion in the summer ground, farmers have experienced physical and mental chronic fatigue on the basis of farmer's appel to eye - fatigue and sun - burned skin on hot working environment including excessive ultraviolet rays, the rough ground condition, inconsistent arrangement of working stand and sorter, heavy - weared habits, and unsuitable working posture. 2. When we improved harmful factors that affect farmer's health, conformed the effects on important work efficiency index such as heart rate, electromyovolume, body temperature, and microclimate inside clothing and work loads were decreased by eliminating the hillock and obstacles of ground, decreasing the clothing weight, using proper clothing appliances such as hat and sunglasses, controlling height of working stand and sorter suitably, improving the working postures and methods as using assistant appliances, alloting the working time and sequence effectively and presenting the light gymnastic exercises and rest for fatigue restoration.

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Adsorption and Degradation of Procymidone in Ginseng Cultivating Soils (인삼 재배토양에서의 Procymidone 흡착 및 분해)

  • Kim, Hyo-Keun;Lee, Yun-Hwan;Lee, Kyu-Seung
    • Korean Journal of Environmental Agriculture
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    • v.21 no.4
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    • pp.286-290
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    • 2002
  • This work has been conducted to investigate the behavior of pesticides in ginseng(Panax ginseng C. A. Meyer) cultivation environment, with a fungicide procymidone as a model pesticide. Procymidone adsorption on ginseng cultivating soil was studied and persistency of procymidone in soil was monitored in indoor incubation experiments at 25$^{\circ}C$ and 10$^{\circ}C$. The soil adsorption coefficients($K_{oc}$) of procymidone were in the range of 513$\sim$743 suggesting the mobility of procymidone in soil is relatively low. Procymidone showed higher persistency in soil under indoor incubation condition than outdoor field condition. The half lives estimated from the first order reaction kinetics were 248 days and 330 days at 25$^{\circ}C$ and 10$^{\circ}C$, respectively.