• 한국토양비료학회지
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• 제34권3호
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• pp.153-157
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• 2001

To evaluate the effect of liquid pig manure application, the growth and yield of rice and the quality of infiltration water were investigated with application of different amounts of liquid manure. At this study, liquid pig manure was treated with 100, 200, 300 and 400% of recommending nitrogen fertilizer level, respectively. Liquid manure with application rate more than 200% of recommending N fertilizer level (11kg) caused to increase of plant height and number of tiller at panicle formation stage, but it caused the plant disease and pest and plant lodging. In those treatment, number of panicles per hill and number of spikelets per panicle were increased, but yield of rice was less than chemical fertilizer treatment due to low rate of ripeness and 1,000 grain weight. $NO_3-N$ concentration in infiltration water sample collected at 90 cm of soil depth was increased with increasing application amount of liquid manure. With liquid manure application more than 200% of recommending N fertilizer level, it affected negatively on yield and environment such as groundwater quality.

• 한국토양비료학회지
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• 제47권6호
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• pp.558-562
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• 2014

Cover cropping and liquid manure application are considered as effective ways to replace the use of chemical fertilizer in orchard. This study was conducted to investigate the effect of cover crop species and liquid manure application rate on green manure production, leaf mineral content, fruit quality and soil chemical properties in pear orchard. The treatments include rye and hairy vetch as cover crops, two liquid manure application levels based on N and $K_2O$ requirement on each cover crop species, and chemical fertilizer as control. Green manure production was higher in hairy vetch than in rye. K content of pear leaves and soil exchangeable K content increased in N based liquid manure application treatments. The yield was higher in rye + liquid manure and fertilizer treatments, and fruit quality was not different between the treatments. Taking all of these into account, rye + $K_2O$ requirement-based liquid manure application is recommended in pear orchard for not only sufficient nutrient supply but also prevention of any problem related with soil $K_2O$ accumulation in pear orchard in long-term perspective.

• 한국초지조사료학회지
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• 제21권4호
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• pp.181-190
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• 2001

This study was conducted to investigate the effect of swine liquid manure(SLM) and phosphorus fertilizer from September, 1998 to July, 1999 on the soil fertility on Italian ryegrass field, Cheju volcanic ash soil. pH(lst investigated), Mg (2nd investigated) and Cu content (2nd investigated) on soil grown by Italian ryegrass were significantly increased by an increase of fertilizer P(P

• 한국축산시설환경학회지
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• 제19권2호
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• pp.163-168
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• 2013

Today, a desirable way to manage livestock manure is to activate its utilization as a resource. The production of high quality liquid fertilizer of livestock manure is very important because it increases the use of various liquid fertilizer. However, the result of mature evaluation with a maturity measuring instrument for liquid fertilizer showed that the deviation of concentration between liquid fertilizer did not bring into uniformity. The result is also making sure that quality management for liquid fertilizer is not smoothly made. Quality evaluation for compost and liquid fertilizer includes physical, biological, chemical and microbiological methods, but a chemical method is mainly being implemented due to fairness and field application. Therefore, this study figured out correlation in feces and urine through regression analysis of livestock manure and tried to create a research plan to carry out efficient quality analysis of managing livestock manure.

• 한국토양비료학회지
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• 제50권5호
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• pp.462-471
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• 2017

A more efficient use of nutrients from organic sources can benefit both farmers and water quality in agriculture. In this paper we reviewed information related to the regulations and guidelines of a swine liquid fertilizer to propose an establishment scheme for the official standards of swine manure slurry as a liquid fertilizer for organic farming. According to the law of establishment and designation of official standard of fertilizers, the liquid fertilizer made with pig liquid manure belongs to the byproduct fertilizer as of one of organic fertilizer. However, the official standards for byproduct fertilizers including the liquid fertilizer set by the Rural Development Administration (RDA), especially for a liquid swine manure fertilizer, should be revised to meet the goals of laws pursuing the environmentally sound agriculture, especially for organic farming because the terms and relevant standards need additional specific standards alike the standards such as impurities and parameter for declaration in EU. Therefore, it is suggested that official standards for byproduct fertilizers should be revised with respect to nutrient, salt content as of SAR and Na content instead of NaCl. Also we need to develop the maximum limit of heavy metals in soil to which the liquid fertilizer can be applied, as well as application rate depending on EC of the liquid fertilizer.

• 한국축산시설환경학회지
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• 제19권2호
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• pp.183-190
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• 2013

Establishment of a new concept of environmental friendly livestock manure management is required based on the facts. But now liquid fertilizer quality in korea shows a large difference among regions and the regulations are uncertain. Focusing on precedent study on main level-grading factors of liquid fertilizer quality certification, the study collected laws and standards related to liquid fertilizer of livestock manure at home and abroad and produced evaluation standards. Liquid fertilizer was divided into four factors (fertilizing value, harmfulness, stability and uniformity). According to each item, scores were awarded based on 16 details: fertilizing value (Nitrogen concentration, the whole concentration of Nitrogen, Phosphoric acid and Kalium), harmfulness (heavy metals, pathogenic microorganism and antibiotics), stability (maturity degree and odour), uniformity (EC, BOD, SS, moisture content and salt). The grade of liquid fertilizer, A (42~48), B (34~41), C (26~33) were rated using total scores.

• 유기물자원화
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• 제22권4호
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• pp.11-20
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• 2014

최근 국내 돼지사육두수 증가에 따른 분뇨배출량이 증가되고 있으나 유엔협약에 의해 2012년부터 해양투기가 금지 되었다. 이에 가축분뇨(액비)의 대량살포장소 발굴목적으로 국내에서 잔디 생산량이 가장 많은 전라남도 장성군 삼서면 잔디재배 농가를 선정하였다. 한국잔디 재배지에서 화학비료뿐만 아니라 가축분뇨액비를 추가 시비하여 잔디생육, 토양화학성 및 논도랑 유출수에 미치는 영향을 조사하였다. 시험결과, 화학비료와 가축분뇨액비를 혼합 시비하면 잔디의 생육과 체내 양분 축적 면에서 화학비료의 일부를 대체할 수 있었다. 그리고 토양화학성에 미치는 영향이 적었고 토양의 유효미생물증식에 효과적임을 알 수 있었다. 따라서 잔디 재배 시 가축분뇨액비의 살포는 화학비료 사용량을 대부분 줄일 수 있으며 잔디재배농가의 생산비 절감에도 효과적이고 가축분뇨의 처리에도 도움이 될 것으로 기대된다. 다만, 가축분뇨액비 시비에 따른 주변 수계 오염이 높아졌다. 향후, 가축분뇨액비의 활용을 높이기 위해서는 이에 대한 지속적인 모니터링으로 시비방법의 개선방안 강구가 필요하다.

• 한국토양비료학회지
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• 제44권6호
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• pp.1130-1136
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• 2011

제주지역의 화산회토양과 비화산회토양에서 감자재배시에 돈분액비를 시용하였을 때 감자의 생산성, 토양화학성 및 침투수의 특성에 미치는 영향을 구명하기 위하여 수행하였다. 초장과 줄기 굵기는 화산회토양과 비화산회토양에서 화학비료구와 돈분액비 시용구간에 차이가 나타나지 않았다. 총수량과 상품수량은 화학비료구와 돈분액비 시용구간에 유의적인 차이가 없었다. 화산회토양과 비화산회토양의 토양 pH는 돈분액비 시용구가 화학비료 시용구보다 높았다. 치환성 칼륨함량은 돈분액비 100%구에서 과다하게 축적되었으나, 화학비료 100%구와 화학비료 50%+돈분액비 50%구와는 차이가 없었다. 유효인산, 치환성 칼슘과 마그네슘은 처리 간에 차이가 없었다. 화산회토양과 비화산회토양에서 토양 70 cm 깊이에서 채취한 침투수의 질산태질소 농도는 무비구가 가장 낮았다. 화산회토양에서 질산태질소 용탈은 시험초기부터 이루어진 반면, 비화산회토양에서 질산태질소 용탈은 생육중기인 10월 8일까지 계속적으로 증가되었고, 두 토양의 돈분액비 100%구에서 높은 경향이었으나, 화학비료구와 돈분액비 시용구간에 큰 차이는 없었다. 결론적으로 화학비료 50%와 돈분액비 50%를 혼합사용하면 감자생육, 토양비옥도 및 침투수의 질산태질소 함량은 화학비료 100%구와 차이가 없기 때문에 화학비료 일부를 돈분액비로 대체할 수 있을 것으로 판단된다.

• 한국물환경학회지
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• 제37권4호
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• pp.306-314
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• 2021

The application of organic fertilizer could be accompanied by potential hazards to soil and humans due to trace metals. Livestock manure compost·liquefied fertilizer is a well-established approach for the stabilization of nutrients and the reduction of pathogens and odors in manures, which can be evaluated as compost·liquefied. In this study, the livestock manure compost·liquefied fertilizers produced at 333 liquid manure public resource centers and liquid fertilizer distribution centers were collected from May to December 2019. The nutrient content (nitrogen, phosphorus, and potassium), physicochemical properties, and heavy metal content were investigated. The livestock manure compost·liquefied fertilizer was measured using a mechanical maturity measurement device. The organic matter, arsenic, cadmium, mercury, lead, chromium, copper, nickel, zinc, E. coli (O157:H7), Salmonella, etc. of the livestock manure compost·liquefied fertilizers were analyzed. The average heavy metal content in the livestock manure compost·liquefied fertilizer was as follows: Cr 2.9 mg/kg (0.2~8.7 mg/kg), Cu 20.4 mg/kg (1.6~74.1 mg/kg), Ni 1.3 mg/kg (0.4~4.2 mg/kg), and Zn 79.8 mg/kg (3.0~340.7 mg/kg). Although large-scale organic fertilizer plants and resources recycling centers produce good organic (liquid) fertilizers with proper components, it is necessary to standardize livestock manure compost·liquefied fertilizer in order to facilitate efforts to turn livestock manure into useful resources.

• 한국토양비료학회지
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• 제34권3호
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• pp.147-152
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• 2001

This study was carried out to investigate the effect of application time and amount of liquid pig manure on growth and yield of rice plant and infiltration water quality. Liquid manure treatment with higher application rate and closer application time to transplanting time showed higher plant height and number of tiller at panicle formation stage, but it caused the plant disease and pest and lodging. In liquid manure treatment with higher application rate, number of panicles per hill and number of spikelets per panicle were higher but yield of rice was less than chemical fertilizer treatment due to low rate of ripeness and 1,000 grain weight. $NO_3-N$ concentration in infiltration water sample was increased with increasing application amount of liquid manure and closer application time to transplanting of rice plant. With consideration yield of rice and environment such as groundwater quality, the proper application amount were 150% and 100% of recommending N fertilizer level (11kg) at before winter and April or May treatment, respectively.