• Title/Summary/Keyword: rape

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Varietal Differences of Nutrient Quality of Rape in Spring Sowing

  • Kwon, Byung-Sun
    • Plant Resources
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    • v.7 no.2
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    • pp.104-109
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    • 2004
  • This study was conducted to investigate the possibility that oil seed rape could be used as a forage fodder crop and to select the most suitable variety of forage rape at the southern area of Korea, Two varieties of oil seed rape currently grown for oil production and six introduced varieties of forage rape with relatively high yield and high nutritional value were grown at the same condition and their nutritional value were observed in Spring. Generally, rape was considered as a useful forage fodder crop with high content of crude protein and low contents of NDF, ADF, hemicellulose, cellulose and lignin. Differences in mean values of the above characters between two groups of rape were not statistically significant. Velox showed significantly higher content of crude protein and significantly lower contents of NDF, ADF, hemicellulose, cellulose and lignin compared with other varieties of forage rape in spring. Rape was relatively high in IVDMD compared with other forage fodder crops, and forage rape was more or less in IVDMD and DDMW than oil seed rape. Velox was the highest in IVDMD and DDMW among the varieties of forage rape in Spring, in this experiment.

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Economic Analysis by Types of Income of a Rape Farmer for Biodiesel (바이오디젤 생산을 위한 유채재배 농가의 소득유형별 경제성 분석)

  • Jung, Jun-Ho;Yoon, Sung-Yee;Hwang, Jae-Hyeon
    • Korean Journal of Organic Agriculture
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    • v.15 no.4
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    • pp.355-376
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    • 2007
  • This study evaluated economic feasibility to find a method that can increase income of a rape farmer for biodiesel. Biodiesel is one of an important bioenergy that can be used to substitute diesel-fuel. A rape is useful not only for biodiesel, but also for a substitute of a barley. This study deals with the income and cost data of a rape farmer compare to that of a barley farmer. According to the result of economic evaluation from 2002 to 2006, the income of a rape farmer for biodiesel incurred a loss. However, this study showed that the income of a rape farmer would be approximately 80% of that of a barley farmer if a new variety of rape called 'SUNMANG' was growed. Also, biodiesel has various ancillary effects such as by-product, preservation of a scenery, reduction of $CO_2$, etc. If the income of a rape farmer had ancillary effects, it would exceed the income of a barley farmer. As a result, we need to support ancillary effects of a rape to encourage a rape farmer for biodiesel.

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A case of rape poisoning in a Hanwoo (한우 유채중독 증례)

  • Do, Jae-Cheul;Kim, Eun-Young;Kim, In-Kyoung;Cho, Min-Hee;Kim, Joong-Kew;Park, No-Chan
    • Korean Journal of Veterinary Service
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    • v.35 no.1
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    • pp.53-57
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    • 2012
  • This is a case report about rape poisoning in a Hanwoo. Non-protein nitrogen (NPN) compound in rape may cause poisoning in domestic animals. Rape poisoned cattle may show big and rapid breath with opening its mouth, edema and erosion of skin with itching, drooling, dyspnea and indigestion. Besides there can be shown neurological (blindness) and urological (red water) symptoms in some cases. There is no effective therapy for rape poisoning, therefore stopping the rape supplying is basically important. Clinical symptoms and history taking are very important factors in diagnosis of rape poisoning, due to the absence of diagnostic standard of judgment for rape poisoning. A Hanwoo 38 months old cow, in a farm located in Gyeoungbuk province showed typical rape poisoning symptoms such as breath with opening its mouth, drooling, dyspnea and hyperphotosensitivity, and dramatical recovery were occurred after stopping supplying of rape. The cow were diagnosed as the rape poisoning based on observation of clinical symptoms and history taking.

Differences in Nutrient Quality among Rape Varieties for Oil Seed and Forage

  • Kwon, Byung-Sun;Lim, June-Taeg;Shin, Jeong-Sik;Ahn, Gae-Soo;Park, Hee-Jin
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.48 no.5
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    • pp.372-375
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    • 2003
  • In order to examine the possibility that oil seed rape could be used as a forage fodder crop and to select the most suitable variety of forage rape at the southern area of Korea, two varieties of oil seed rape currently grown for oil production and six introduced varieties of forage rape with relatively high yield and high nutritional value were grown at the same condition and their nutritional value were observed. Generally, rape was considered as a useful forage fodder crop with high content of crude protein and low contents of NDF, ADF, hemicellulose, cellulose and lignin. Differences in mean values of the above characters between two groups of rape were not statistically significant. Velox showed significantly higher content of crude protein and significantly lower contents of NDF, ADF, hemicellulose, cellulose and lignin compared with other varieties of forage rape. Rape was relatively high in IVDMD compared with other forage fodder crops, and forage rape was more or less higher in IVDMD and DDMM than oil seed rape. Velox was the highest in IVDMD and DDMM among the varieties of forage rape in this experiment.

Effects of Rape Residue on Nitrogen Fertilizer Reduction in Paddy Soil under Double Cropping System

  • Cho, Hyun-Jun;Hyun, Byung-Keun;Sonn, Yeon-Kyu;Shin, Kook Sig
    • Korean Journal of Soil Science and Fertilizer
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    • v.49 no.1
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    • pp.7-11
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    • 2016
  • Winter crops have been recognized as an alternative to soil management for fertility and crop productivity in paddy soil. Recently, rape has been produced at winter season and there is little research results on reduction of N fertilizer by adding rape residues for rice cultivation. In this study, we investigated the productivity and quality of rice by applying with 0, 27, 63, $90kg\;ha^{-1}$ of N fertilizer after input of rape residues into soil for two years. The highest yield of rice was average $4.68Mg\;ha^{-1}$ at the treatment applied with the $90kg\;N\;ha^{-1}$ with rape residue. It was reduced to N rate from 31.6 to $43.2kg\;N\;ha^{-1}$ in comparison to $4.53Mg\;ha^{-1}$ of maximum yield in treatment added $90kg\;N\;ha^{-1}$ with rape. Amylose content in rice was similar among treatments with/without rape residue, but protein content was lower in treatment with rape residue than in those without rape residue. In conclusion, input of rape residue in rice cultivation could be alternative to reduction of N fertilization and improvement of quality by adjusting rice productivity in paddy soil under cropping system.

Varietal Difference of Dry Matter Weight of Stem and Leaf in Rape

  • Kwon, Byung-Sun;Shin, Jeong-Sik;Ahn, Gae-Soo
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2003.10b
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    • pp.40-42
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    • 2003
  • In order to examine the possibility that oil seed rape could be used as a forage fodder crop and to select the most suitable variety of forage rape at the southern area of Korea, two varieties of oil seed rape currently grown for oil production and six introduced varieties of forage rape with relatively high yield and high nutritional value were grown at the same condition and yield components were observed. Forage rape was superior to oil seed rape in terms of yield components, plant fresh weight and plant dry mater weight. Velox was superior to any other variety of forage rape in these characters. When plant dry matter weight of the rape was subdivided into four components such as a main stem, branch stems, main stem leaves and branch leaves, contribution of these components to plant dry matter weight was in the order of branch stems, branch leaves, the main stem and main stem leaves. Dry matter percentage of the rape ranged from 9.32 to 11.08 percent, which was somewhat low value. There was no significant difference between two groups of the rape in terms of dry matter percentage. Velox showed somewhat higher value in dry matter percentage.

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Differences in Productivity among Rape Varieties for Oil Seed and Forage

  • Kwon, Byung-Sun;Lim, June-Taeg;Shin, Jeong-Sik;Ahn, Gae-Soo;Park, Hee-Jin
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.48 no.5
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    • pp.376-380
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    • 2003
  • In order to examine the possibility that oil seed rape could be used as a forage fodder crop and to select the most suitable variety of forage rape at the southern area of Korea, two varieties of oil seed rape currently grown for oil production and six introduced varieties of forage rape with relatively high yield and high nutritional value were grown at the same condition their and yield components were observed. Forage rape was superior to oil seed rape in terms of yield components, plant fresh weight and plant dry mater weight. Velox was superior to any other variety of forage rape in these characters. When plant dry matter weight of the rape was subdivided into four components such as a main stem, branch stems, main stem leaves and branch leaves, contribution of these components to plant dry matter weight was in the order of branch stems, branch leaves, the main stem and main stem leaves. Dry matter percentage of the rape ranged from 9.32 to 11.08 percent, which was somewhat low value. There was no significant difference between two groups of the rape in terms of dry matter percentage. Velox showed somewhat higher value in dry matter percentage.

Effect of Sowing Rate of Mixture on the Growth Chracteristics, Forage Yield and Quality of Rye and Rape (호밀과 유채의 혼파비율이 생육특성, 사초수량 및 영양소 수량에 미치는 영향)

  • 권응기;김병완;성경일;김창주
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.16 no.2
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    • pp.147-154
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    • 1996
  • Rye(Secale cereale L.) shows lower dry matter yield and nutrient content when it was harvested before wintering. This study was conducted to investigate how effect forage rape(Brassicu napus Subsp oleifera), which carries early maturity and can be harvested before wintering, on the increase of the forage yield and nutrient content when rye was sown mixed with the rape. Optimum sowing rate of the rye/rape mixture was also pursued in this study. The five treatment of rye single, rape single, ryel20+rape 1Okg/ha, rye84+rape 7kg/ha and rye60+rape 5kg/ha were sown on 2 September 1989. Rape single plot was cut one time(l9 November 1989) and the other plots were cuted two times(19 November 1989 and 20 May 1990). In botanical composition of the mixtures, rape recorded dominant ratio with 64~69% at the autumn cut. The rye84+rape 7kg/ha mixture plot marked the highest dry matter yield with 4.46t/ha among all the experimental plot at the autumn cut(P<0.05). In year total yield of dry matter(t/ha), rye single, rape single, rye120+rape IOkg/ha, rye84+rape 7kg/ha and rye60+rape 5kg/ha marked 13.6, 4.1, 12.7, 12.9 and 11.8, respectively. In crude protein content, the rye single plot was 17.2% at the autumn cut on the other hand the mixture plots showed increasing tendency with 18.0~19.9%. In crude fiber content, the mixture plots were remarkably lower than rye single plot. In year total yield of crude protein, rye84+rape 7kg/ha mixture plot showed the highest yield with 1.6lt/ha among all the experimental plots. Ratio of crude protein yield to crude fiber yield, rye84+rape 7kg/ha tended to be higher than the other mixture plots. It is confirmed that the rye/rape mixture can produce more forage than the rye single cropping when they are harvested in late autumn, besides the mixture forage contains higher crude protein than that rye single forage. It can be said that the rydrape mixture is more useful than the rye single cropping, and optimum sowing rate of the mixture is 84kg/ha of rye+7kg/ha of rape.

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A Study of the Prevalence, Correlates and Perceptions on Wife Rape (아내강간 발생과 관련 변수 파악 및 인식)

  • Shin, Sung-Ja
    • Korean Journal of Social Welfare
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    • v.39
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    • pp.180-209
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    • 1999
  • As a pioneering study on wife rape, this study focuses on identifying the prevalence, the correlates of the individual social class and domestic violence background, and the perception of wife rape. This study uses the data based on the survey 224 married men and women who reside in Daegu, Korea. The result of this study shows that about 42.4% married men have experienced any type of wife rape. The most prevalent wife rape is force only wife rape(36.4%). Battering rape(12.1%) and sadistic rape(10.4%) are also found as significant coercive sexual issue among Korean couples. Monthly income and child abuse experience are found as significant predictors for the wife rape of married men. In addition, wife's religious enthusiasm is also negatively correlated with wife rape propensity, although the effect is not strong. The living standards is found as a strong correlate of women's propensity of being raped from their husbands. Thus, our practical attention should be given to those who have financial difficulties in low economic status, and to those who have significant child abuse experience, in order to prevent wife rape. Overall, married men and married women show pretty negative perceptions of wife rape, however, some of them are still positive of it. It is interesting that married men show a very defensive attitude against the proposal of establishing legal punishment for the people who commit wife rape. According to the gender, there is a considerable difference between men and women in terms of both the degree of acceptance of, and the demand for legal punishment of wife rape. It is problematic that the married women with a greater experience of being raped by husbands show far greater tolerance of wife rape than those with a less experience of it. These findings give us significant practical implications for social work intervention.

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Effect of Nitrogen Fertilizer Level and Mixture of Small Grain and Forage Rape on Productivity and Quality of Spring at South Region in Korea (남부지방 봄철 질소 시비수준 및 사료작물과의 혼파가 사료용 유채의 생산성 및 사료가치에 미치는 영향)

  • Kim Jong Geun;Chung Eui Soo;Seo Sung;Kim Meing Joong;Chang Young Seok;Chung Byeng Chun
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.25 no.3
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    • pp.143-150
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    • 2005
  • These experiment was conducted to determine the effect of nitrogen fertilizer levels and mixture small grains on productivity and quality of spring forage rape at south region of Korea(Mokpo). The experiment was arranged in a split plot design with three replications. The main plots consisted of three different levels of nitrogen fertilizer(100, 150 and 200 kg/ha). The sub plots consisted of five kinds of mixed small grain species(Rye, Oat, Barley, Italian ryegrass, and Rape monoculture). The results obtained are summarized as follow. Dry matter(DM) content of Rye + Rape and Ba.ley + Rape mixtures were increased by $2\~3\%$ compared to Rape monoculture. The high level of nitrogen application increased the fresh matter yield, and yield of Rye + Rape and Rape monoculture were higher than that of others. Dry matter yield of Rye + Rape mixture and Rape monoculture with 200kg/ha of nitrogen application were higher by 9,449 and 9,227 kg/ha, respectively. The crude protein(CP) content of rape was high as $18.6\%$ while average CP content was $16\%$. The average total digestible nutrient(TDN) content showed high as $70\%$. It is suggested the Rye + Rape mixture or Rape monoculture would recommendable for spring usage of rape at south region of Korea.