간행물
한국유기농업학회지 KCI 등재 Korea Journal of Organic Agriculture
- 발행기관 한국유기농업학회
- 자료유형 학술지
- 간기 계간
- ISSN 1229-3571 (Print)2287-819X (Online)
- 수록기간 1992 ~ 2020
- 주제분류 농수해양 > 농학 농수해양 분류의 다른 간행물
- 십진분류KDC 523DDC 630
권호리스트/논문검색
Vol.13 No.4 (2005년 12월) 7건
1.
2005.12
서비스 종료(열람 제한)
Nutrient balance is important to develop environmentally friendly agriculture. Phosphorus surplus in nutrient balance was more serious than that of nitrogen. Nitrogen and phosphorus exceeded twice the requirement at 30 cities/counties and 32 among 165, respectively. Given livestock waste and optimal nutrient balance, the proper number of animal feeding was 1.68LU/ha. Considering livestock waste only, the optimal number of livestock feeding was 3,918,000LU (heads) and, including fertilizer that would be 2,288,000LU. It is recommended to introduce the regional control system to regulate nutrient input and output, and the trading system of livestock feeding rights to control that.
2.
2005.12
서비스 종료(열람 제한)
There is a controversy on developing or preserving Kwangduksan(Mt.) located in Cheonan and Asan. Kwangduksan has a grand scenery, many of cultural properties, and rare animals and plants like fireflies. So the citizens of Cheonan and Asan have recognized its cultural and ecological value as yet. In this study, an economic basis for preserving it was presented to prevent developing thoughtless for the environment. Preservation value of it was estimated about 44 billions by CVM. This result shows the environmental value of Kwangduksan is very great. If people feel importance of environmental resources more and more, this value of Kwangduksan will be greater and greater.
3.
2005.12
서비스 종료(열람 제한)
The objectives of this study were to analysis willingness to pay (WTP) for environmental-friendly agri-product (EFAP) food service of child-care centers. To analysis preference about EFAP and WTP, parent’ survey were conducted residing in Asan city. The sample size of the survey is 143 respectively. As a result, most of parents really recognized that EFAP is good for their children as well as they want to change food material from general agri-product to EFAP. Moreover, additional willingness to pay for EFAP food service is 8,360 won on average per month. Therefore, environmental-friendly agri-policy to be more focused on the promotion of the consumer"s interests and food security needs.
4.
2005.12
서비스 종료(열람 제한)
This study was conducted to investigate into the ecological environments and the soil microflora of purple-bracted plantain lily (Hosta longipes Matsumura) for wild vgetables. Native soil textures of purple-bracted plantain lily were in the order of sandy loam (SL) ＞ loam (L) ＞ clay loam (CL). pH in soil was relatively acid by 4.8, electric conductivity was 0.08mS/㎝, and organic matter content was 0.08g/㎏. CEC was measured by 100.8cmol(+)㎏-¹ and available phosphate was 103.4㎎/㎏. Contents of exchangeable cations in terms of potassium, calcium, and magnesium were measured by 0.33cmol(+)㎏-¹, 2.26cmol(+)㎏-¹, and 0.87cmol(+)㎏-¹, etc. Diurnal changes in the air temperature of the natives were 15 to 20℃, that temperature differential was relatively little compared with that in open field by 15 to 30℃. Relative humidity in the natives were much more humid by 60 to 80% compared with that in open field by 35 to 85%. Light intensity in the natives and the open field at ten o"clock were 2,300μ㏖/㎡/sec. and 1,750μ㏖/㎡/sec. Total number of soil microorganisms were 8.4×107 c.f.u./g. Mycorrhizal spore densities over 500 ㎛, 355~500㎛, 251~354㎛, 107~250㎛ and 45~106㎛ were 0.8, 1.3, 2.1, 38.1, and 110.0 respectively. Mycorrhizal root infections by vesicle and hyphae were 17% and 6%. However, arbuscules in the roots were not shown.
5.
2005.12
서비스 종료(열람 제한)
This study was conducted to examine the effects of dietary Mogchotan(the mixture of charcoal and pyroligneous acid, 80:20, w/w) supplementation on fattening performance, fatty acid composition and the physico-chemical characteristics of meat in pigs. The present study was also stressed to investigate the possibility of industrial utilization of charcoal and pyroligneous acid as a livestock feed additive. Weight gain and feed conversion in pigs fed the Mogchotan supplemented diet were higher than those of the control group. In fatty acids composition, palmitic acid(C16:0) contents of Mogchotan treatment groups were lower than that of control group. However, Mogchotan supplementation increased C16:1, C18:0, C18:1, C18:2 and C18:3 contents when compared with control group pigs. Also, Mogchotan supplementation groups decreased saturated fatty acids level than control group. On the other hand, Mogchotan supplementation showed higher unsaturated fatty acids value, especially polyunsaturated fatty acids value compared to control group. The carcass pH of pigs fed the Mogchotan tended to be higher than control, but was not significantly different. The water holding capacity was significantly higher in pigs fed the 3.0% Mogchotan-supplemented diet than those of other treatment groups(p＜0.05). Altogether, it has been suggested that dietary 1~3% of Mogchotan supplementation improved the fattening performance and meat quality in pigs.
6.
2005.12
서비스 종료(열람 제한)
This study was carried out to investigate the effect of different mixture ratios of vermicasts on the growth of leaf beet(Beta vulgaris var. cicla), young radish (Raphanus sativus L), spinach(Spinacia oleracea) and lettuce(Lactuca sativa) The mixture of ratios of vermicast(fermented pig manure with sawdust) and peatmoss were 100%+0%, 60%+40%, 40%+60% and 0%+100%(control), respectively. The bulk density, particle density, pH, electrolytic conductivity, ash, total nitrogen, cation exchange capacity, available phosphorous and exchangeable cations increased significantly compared to those grown in the 100% of peatmoss(control). The significantly higher values of plant length, leaf area, shoot dry weight, root weight, root length and biological yield obtained were 40%~100% and 40% of vermicast in leaf beet and lettuce, respectively. The young radish and spinach showed that significantly differences of shoot dry weight, root weight and biological yield in the mixture ratios of vermicast were 40%~60% and 40% in young radish and spinach, respectively.
7.
2005.12
서비스 종료(열람 제한)
This study was conducted to develope efficient vermicomposting using of different mixture ratios of cow manure and sawdust by feeding these to earthworm and then by studying the growth and reproductive efficiency of earthworm, and the chemical composition of worm cast and its production. The results are summarized as follows. C/N ratio of feed was 20.43~45.20 and it increased according to the higher proportion of sawdust, and survival of earthworm was 97.6~100%. Number of young worms were significantly higher in 30 and 40% addition of sawdust (number of 899.6 and 927.8) than number of 769 of real cow manure treatment (P＜0.05). Fresh weight of young worms was 8.00~14.35g and it was significantly higher in 40% addition of sawdust than other treatments(P＜0.05). The cast production of earthworm was showed in the tendency of becoming lower in the 40% addition of sawdust than in 10~30% addition of that, but digested matters were significantly higher in 10~40% addition of sawdust than real cow manure treatment(P＜0.05).
