• 한국토양비료학회지
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• 제26권1호
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• pp.20-24
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• 1993

밭토양(土壤)에서 비료(肥料)의 장기(長期) 연용(連用)이 대맥(大麥)의 생육(生育) 및 수량(收量)에 미치는 영향(影響)을 구명(究明)코자 미사질(微砂質) 식양토(埴壤土)인 우평통(牛坪統)에 무비(無肥), P.K, N.K, N.P 및 N.P.K구(區)를 처리(處理)하여 1975~1990년(年)까지 16년간(年間)의 년차간(年次間) 수량변화(收量變化), 16년차(年次) 수확기(收穫期) 식물체(植物體) 부위별(部位別) 양분흡수량(養分吸收量) 및 토양성질(土壤性質) 변화(變化)를 조사(調査)한 결과(結果)는 다음과 같다. 1. 삼요소(三要素) 대조구(對照區)에 비(比)하여 각요소(各要素) 결제구(缺除區)의 수량감수정도(收量減收程度)는 P.K$P_2O_5$와 $K_2O$ 흡수량(吸收量)이 전처리중(全處理中) 가장 적었고 특(特)히 N와 $K_2O$의 흡수이용률(吸收利用率)은 부(負)의 수치(數値)를 보였다. 4. 시험후(試驗後) 토양분석결과(土壤分析結果) N.K 처리구(處理區)에서 토양(土壤) pH가 매우 낮았고, 또한 토양중(土壤中) $P_2O_5$, Ca, Mg 함량(含量)은 매우 적었으며, 16년간(年間) 평균토양중(平均土壤中) 인산(燐酸) 및 고토함량(苦土含量)과 대맥수량(大麥收量)과는 정(正)의 상관(相關)을 보였으나, 16년차(年次) 시험(試驗) 후(後) 토양중(土壤中) $NO_3-N$ 함량(含量)은 매우많은 반면(反面) 식물체(植物體) 질소(窒素) 및 기타(其他) 성분(成分) 흡수량(吸收量)은 매우 적었다.

• Journal of Ecology and Environment
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• 제35권4호
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• pp.307-311
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• 2012

This study was conducted to evaluate the dynamics of soil respiration (total soil and heterotrophic respiration) following fertilizer application in red pine forests. Fertilizer (N:P:K = 113:150:37 kg/ha), which reflects current practices in Korean forest, was applied in April 2011, and total soil and heterotrophic respiration rates were monitored from April 2011 to March 2012. Monthly variation of total soil and heterotrophic respiration rates were similar between the fertilizer and control treatments, as soil temperature was the dominant factor controlling the both rates. Total soil respiration rates during the study period were not significantly different between the fertilizer (0.504 g $CO_2\;m^{-2}\;h^{-1}$) and control (0.501 g $CO_2\;m^{-2}\;h^{-1}$) treatments. However, the proportion of heterotrophic respiration was higher in the fertilizer (78% of total soil respiration rates) than in the control (62% of total soil respiration rates) treatments. These results suggest that current fertilizer practices in Korea forest soil do not substantially affect total soil respiration rates.

• 한국산림과학회지
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• 제95권2호
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• pp.177-182
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• 2006

Little information is available on soil $CO_2$ efflux and crop yield under agroforestry systems. Soil $CO_2$ efflux, microbial biomass C, live fine root biomass, and cotton yield were measured under a pecan (Carya illinoinensis K. Koch)-cotton (Gossypium hirsutum L.) alley cropping system in southern USA. A belowground polyethylene root barrier was used to isolate tree roots from cotton which is to provide barrier and non-barrier treatments. The barrier and non-barrier treatment was randomly divided into three plots for conventional inorganic fertilizer application and the other three plots for organic poultry litter application. The rate of soil $CO_2$ efflux and the soil microbial biomass C were affected significantly (P < 0.05) by the fertilizer treatment while no significant effect of the barrier treatment was occurred. Cotton lint yield was significantly (P < 0.0 I) affected by the root barrier treatment while no effect was occurred by the fertilizer treatment with the yields being greatest ($521.2kg\;ha^{-1}$) in the root barrier ${\times}$ inorganic fertilizer treatment and lowest ($159.8kg\;ha^{-1}$) in the non-barrier ${\times}$ inorganic fertilizer treatment. The results suggest that the separation of tree-crop root systems with the application of inorganic fertilizer influence the soil moisture and soil N availability, which in tum will affect the magnitude of crop yield.

• 한국토양비료학회지
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• 제46권1호
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• pp.1-7
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• 2013

This study was to examine growth, carbon and nitrogen responses in foliage following forest fertilization in a red pine stand. Two types of fertilizer (N:P:K=113:150:37 kg $ha^{-1}$; P:K=150:37 kg $ha^{-1}$) were applied on late April 2011. Growth, carbon and nitrogen responses of foliage were monitored 3 times (July, September, November) after fertilization. Morphological growth responses (dry mass, leaf area, specific leaf area) with foliage age were not significantly (P > 0.05) affected by fertilizer application, while needle dry mass and leaf area of July were significantly lower in current-year-old than in one-year-old or two-year-old needles of September or November. Carbon concentration and content in foliage was little affected by fertilizer application compared with sampling month or needle age, while the NPK fertilizer produced high nitrogen concentration and content of foliage. The results indicate that nitrogen concentration and content in foliage may serve as an indicator of the nitrogen status by fertilization in a red pine stand.

• Weed & Turfgrass Science
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• 제3권3호
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• pp.240-245
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• 2014

This study was carried out to determine the possible use of volcano eruption sand at Merapi mountain area compared with clayey soil, alfisol as turfgrass growing media. Indonesia has abundant source of eruption sand and clayey soil. Native zoysiagrass (Z. matrella) was collected from Sleman district and seashore paspalum (P. vaginatum) from Solo region. The experimental plots were treated with both organic and inorganic fertilizers. Zoysiagrass and seashore paspalum can grow on the mixture of eruption volcano sand and alfisol soil. Fertilizers application increased turf color, surface coverage rate and recovery rate of turfgrass. While fertilizer treated alfisol have no effect on the length and dry weight of zoysiagrass root. Mixing of volcano eruption sand on growing media resulted in longer root length, higher shoot dry weight of zoysiagrass than in alfisol soil. Type of fertilizer affected the pH, soil organic matter, total N, available P, available K and electrical conductivity of sand and alfisol after cultivation. Similarly to zoysiagrass, the recovery of seashore paspalum was increased by application of fertilizer, even the inorganic fertilizer showed faster recovery than organic fertilizer. Surface coverage of seashore paspalum was faster than that of zoysiagrass with or without fertilizer.

• 한국토양비료학회지
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• 제48권5호
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• pp.404-412
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• 2015

The slurry composting and bio-filtration (SCB) liquid manure has some obvious advantages including a good source of N, P and K, local availability, effective microorganism and the ability to improve soil properties. This study was conducted to evaluate the influence on the changes of soil chemical properties and yield of red pepper by fertigation cultivation with SCB application for 2 years. Red pepper was transplanted in early May in 2013 and 2014. The treatment with three replication was composed of 4 types as control (N 1.0), SCB 0.5N, SCB 1.0N, and SCB 2.0N standards of recommended nitrogen fertilizer ($19kg\;N\;10a^{-1}$). The fertigation cultivation which was installed the surface drip irrigation system was splitted 10 times as $2.5Mg\;10a^{-1}$ nutritional solution included with chemical fertilizer and SCB every 10 days during the cultivation. The height and width of pepper plant were 7.0% and 5.8% higher in SCB 2.0N treatment than that in control. The yield of red pepper increased with the increasing of SCB application rates from SCB 0.5N to 2.0N. The yield of SCB 1.0N was much better 10% in average than that of control, and there was significant differences among all treatments. pH of control soil after final harvest decreased to 6.1, however pH of SCB treated soils increased from 6.7 to 7.1 depending on SCB application rates. The Exch.-K contents of SCB treated soils were increased 13.7 to 56.9% after final harvest compared with control by $0.51cmol_c\;kg^{-1}$. Accordingly, these results showed that SCB 1.0N application rate as a recommended nitrogen level based on soil testing can be used as an alternative nitrogen management as well as plant nutrition for red pepper cultivation.

• Asian-Australasian Journal of Animal Sciences
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• 제22권5호
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• pp.732-739
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• 2009

Pig slurry is a good soil amendment not only because of its high organic matter content, but also because of its ability to provide various nutrients. The objective of this study was to estimate the influence of raw and processed pig slurry application on pot soil over chemical fertilizer and non-amended control soil. Change in the chemical parameters (pH, organic matter (OM), organic carbon (OC), macro and micronutrients) and microbial mass of the treated soils were monitored over 30 to 90 days. Pot soil was treated with the recommended dose of pig slurry and chemical fertilizer, and was sampled after 30, 60 and 90 days of incubation. The least significanct difference (p<0.05) was observed on Fe, Cu, Zn, available P and K between treatments. All treatments increased N, P and K content and microbial mass of soil over control soil. Interestingly, no significant effects were detected on OM, OC, total bacteria, actinomycetes and fungi mass in soil irrespective of treatments given. However fungal and bacterial counts, as well as available nutrients, were found to be higher in processed slurry (PS)-treated soil compared to other soils. In general a significant correlation existed between the fungal count and OM, OC, Zn, T Kjeldahl N (TKN), available P and K of soil. A strong negative correlation was observed between pH and Fe in soil. This study clearly demonstrated that the use of processed manure as a fertilizer could be a key for sustainable livestock agriculture.

• 한국작물학회지
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• 제37권5호
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• pp.413-418
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• 1992

질소시비수준과 추비방법이 율무의 생육과 종실수량에 미치는 영향을 구명하고자 애원종을 공시하여 시험한 결과를 요약하면 다음과 같다. 1. 시비량과, 추비 횟수가 증가할수록 초장, 엽수, 주당경수, 정립비율, 1$\ell$중, 100립중, 10a당 종실중의 수량형질은 질소 14kg / 10a의 적은 량을 기비로 40%, 1차 추비로 30%, 2차 추비로 20%, 그리고 3차로 10%를 시용했거나 180kg / 10a의 많은 량을 전량기비로 시용했을 때 모두 높게 나타났다. 3. 분산분석에서도 시비량간, 시비방법간, 시비량과 시비방법간의 교호작용에서도 유의차를 나타내었다.

• 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.

• Journal of Ecology and Environment
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• 제29권2호
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• pp.151-155
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• 2006

Root nodule biomass, and seedling biomass and growth were examined for 2-year-old Robinia pseudoacacia and Amorpha fruticosa seedlings following fertilization treatments. Organic fertilizer, solid combination fertilizer, and organic fertilizer plus solid combination fertilizer were used for the study. Root nodule biomass (g/plant) ranged from 3.00 to 7.06 for R. pseudoacacia and varied from 1.52 to 2.32 for A. fruticosa, respectively. In all treatments, root nodule biomass of R. pseudoacacia was significantly higher than those of A. fruticosa. Fertilization significantly increased root nodule biomass for only R. pseudoacacia, however, there were no significant differences in root nodule biomass among fertilization treatments. Root nodule biomass was not influenced by soil nitrogen (N) and phosphorous (P) concentrations following fertilization treatments. Seedling biomass (components and total) and growth (diameter at root collar and height) were strongly correlated with root nodule biomass for the two N fixing tree species.