• Journal of Animal Science and Technology
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• 제48권1호
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• pp.115-122
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• 2006

밭에서 호밀에 경운방법과 비료종류를 달리하였을 때 사초의 생산성, 품질 및 생산비를 비교하기 위하여 수행하였다. 본 시험은 2×2=4요인 시험으로 경운방법은 경운과 무경운을 두었으며, 비료종류는 화학비료와 퇴비를 두었다. 호밀의 건물률, TDN 수량 및 CP 수량은 처리간에 유의적인 차이가 없었으나, 경운의 건물수량은 무경운보다 많았다(P<0.01). 한편 비료종류에서는 화학비료의 건물수량, TDN 수량 및 CP 수량이 퇴비보다 많았다. 호밀의 조단백질 함량은 무경운이 경운보다 높았으나((P<0.05), 비료의 종류에서는 처리간에 유의적인 차이가 없었다. 호밀의 NDF, ADF 및 TDN 함량은 처리간에 유의적인 차이가 없었다. 호밀의 면적당 생산비는 경운이 무경운보다 많았으나, 원물, 건물 및 TDN 1kg당 생산비는 무경운이 많았다. 한편 비료의 종류에서는 화학비료의 면적당 생산비가 퇴비보다 많았으나 원물, 건물 및 TDN 1kg당 생산비는 화학비료가 적었다. 이는 경운과 화학비료가 무경운과 퇴비보다 사초수량이 많았기 때문이다. 이상의 시험결과를 볼 때 경운방법과 비료종류는 호밀의 품질보다 사초수량에 많은 영향을 미쳤다. 경운과 화학비료가 무경운과 퇴비보다 호밀의 1kg당 생산비가 적었는데 이는 경운과 화학비료의 사초수량이 다른 처리구보다 많았기 때문이다.

• 한국토양비료학회지
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• 제48권5호
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• pp.528-534
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• 2015

Green manure crops have been well recognized as the alternative for chemical fertilizer, especially N fertilizer, because of its positive effect on soil and the environment. Hairy vetch and green barley are the most popular crops for cultivation of rice in paddy field. This study was conducted to evaluate effects of hairy vetch and green barley on soil microbial community and chemical properties during short-term application (three years). For this study, treatments were composed of hairy vetch (Hv), green barley (Gb), hairy vetch + green barley (Hv+Gb), and chemical fertilizer without green manure crops (Con.). Hv+Gb treatment showed the highest microbial biomass among treatments. Principal component analysis (PCA) showed that PC1 (73.0 %) was affected by microbial biomass and PC2 (21.5 %) was affected by fungi, cy19:0/18:$1{\omega}7c$ (stress indicator). Combined treatment with hairy vetch and green barley could be more efficient than green manure crop treatment as well as chemical fertilizer treatment for improvement of soil microorganisms.

• 한국산림과학회지
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• 제34권1호
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• pp.15-20
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• 1977

본시험(本試驗)은 화학비료(化學肥料)로서 요소(尿素), 중과석(重過石), 염화가리(鹽化加里)와 주우산림용고형비료(住友山林用固型肥料)를 비료성분량(肥料成分量)으로서 동량(同量)을 1회(回) 시용(施用)하였을 때의 시비수준별(施肥水準別) 비효(肥効)를 4년간(年間) 조사(調査) 연구분석(硏究分析)하여 본 것이다. 1. 비종간(肥種間)에 있어서 화학비료(化學肥料)는 속효성비료(速効性肥料)이므로 비효(肥効) 1차년도(次年度) 및 2차년도(次年度)에 주(主)로 나타나고 3차년도(次年度)에는 비효(肥効)가 떨어졌으며 주우산림용고형비료(住友山林用固型肥料)는 비교적(比較的) 지효성(遲効性)이므로 시비후(施肥後) 1차년도(次年度)에는 비효(肥効)가 나타나지 않았으나 2차년도(次年度)부터 서서(徐徐)히 비효(肥効)가 나타나 3차년도(次年度)에 크게 나타났으며 4차년도(次年度)까지 비효(肥効)가 지속(持續)되었다. 2. 시비초년도(施肥初年度)는 주우산림용고형비료(住友山林用固型肥料) 시용구(施用區)보다 화학비료(化學肥料) 시용구(施用區)가 좋았으나 시비(施肥) 2차년도(次年度) 이후(以後)는 산림용고형비료(山林用固型肥料)가 비효(肥効)를 인정(認定) 할 수가 있었으며 화학비료(化學肥料)는 주우산림용(住友山林用) 고형비료(固型肥料)보다 6.2%에 비료(肥料)의 유실(流失)이 있었다. 3. 시비수준(施肥水準)에 있어서 본당(本當) 40~80g를 시용(施用)하여야 하며 1회(回) 시비(施肥)한 비효(肥効)는 3년간(年間) 지속(持續)되었다. 임목(林木)에 있어서는 보통(普通) 시비당년(施肥當年)에는 엽색(葉色)만이 농록색(濃綠色)을 띄고 있으며 생장량(生長量)에는 크게 나타나지 않으며 화학비료(化學肥料)는 2차년도(次年度)에 주우산림용고형비료(住友山林用固型肥料)는 3차년도(次年度)에 크게 비효(肥効)가 나타났다. 4. 이상(以上)의 연차별(年次別) 시비효과(施肥効果)로 보아 적량(適量)을 시비(施肥)하여 화학비료(化學肥料)는 1년(年)걸려 2년(年)마다 시비(施肥)하거나 매년(每年) 시비(施肥)하는 것이 좋고 산림용(山林用) 고형비료(固型肥料)는 2년(年)걸려 3년(年)마다 시비(施肥)하거나 2년(年)마다 시비(施肥) 하여도 무방(無妨)하므로 성력적(省力的)이라고 힐 수 있다. 5. 산림용(山林用) 고형비료(固型肥料)는 식재시비시(植栽施肥時) 과도(過度)한 시비(施肥)를 하여도 비소해(肥燒害)가 없으므로 편리(便利)하며 성력적(省力的)이다. 6. 끝으로 바라고 싶은것은 산림용(山林用) 초고성능고형비료(超高性能固型肥料)를 하루 속(速)히 제조이용(製造利用)하여 다량(多量)의 비료(肥料)를 임지(林地)에 시용(施用)하여 지력(地力)을 배양증대(培養增大)시켜 고갈(枯渴)된 산림자원(山林資源) 조성(造成)에 원활(圓滑)을 기(期)하여야 한다.

• 청정기술
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• 제22권1호
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• pp.29-34
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• 2016

Field cultivation of corn and microbial cell viability tests using Pseudomonas putida K-5 were performed to assess the toxic effect of kelp seaweed biochar (KBC) and fir wood biochar (FBC) produced by pyrolysis. After 63 days growth, FBC increased corn growth by 4.9% without fertilizer and by 7.6% with fertilizer, while KBC decreased it by 20.2% without fertilizer and by 27.9% with fertilizer. Physico-chemical characterization of the biochars such as ICP, CHON, and proximate analyses showed that KBC contained large amount of metals and ashes which could be responsible for its inhibition to corn growth. Upon exposure of K-5 cells for 1 h to biochar extracts, the cell viability in KBC extracts was 48.2% and quite lower than that (78.6%) in FBC. Washed KBC biochar with water at 1:10 w/v % increased the cell viability to 54.0%. The results indicated that seaweed biochar may be careful to be used for plant growing additives due to its high concentrations of metals and ashes. This toxic effect could be reduced by proper washing method with water.

• 한국연초학회지
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• 제19권1호
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• pp.33-39
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• 1997

Recently the method of basal compound fertilizer (N : P : K = 18.2 : 9.8 : 35.0) Placement has been changed from banding to broadcasting in tobacco cultivation. The effects of the compound fertilizer placement, level of fertilizer and additional urea application on the agronomic characteristics, two chemical compositions and physical Properties of burley tobacco(Nicotiana tabacum L. cv. KB 108) were investigated at Chonju Experiment Station, Korea Ginseng and Tobacco Research Institute in 1995-1996. Six treatments consisted of (1) band (method of fertilizer Placement) + In kg/10a(compound fertilizer) + 0(additional urea applied), (2) broadcast+140+0, (3) broadcast+140+25, (4) band+180+0, (5) broadcast+180+0, and (6) broadcast +180+25. The additional urea was applied at hilling. No significant differences were detected between banding and broadcasting method of compound fertilizer Placement in field 9rowth, wield, organoleptic qualify(price Per kilogram), chemical composition and Physical properties of cured leaf, The increased compound fertilizer by 30%(40k/10a) or the additional urea application by 25kg per 10a produced slightly higher yield than the recommended amount of basal compound fertilizer without additional urea application did. It also increased the total alkaloid content of cured leaf. It is recommended that no more basal fertilizer above the recommended amount and no additional urea application are needed in burley tobacco fertilization, even though the method of basal fertilizer placement being chanced from banding to broadcasting. Key words : Nicotiana tabacum, fertilizer placement, additional urea.

• 한국토양비료학회지
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• 제48권4호
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• pp.312-317
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• 2015

This study was conducted to evaluate effects of diethylene triamine penta acetic acid (DTPA) treatment on growth of red pepper and nutrient availability to salt accumulated soil in the plastic film house. The treatments were no application (Control), chemical fertilizers (NPK), DTPA (0.06, 0.13, and 0.19 mM) and the half of chemical fertilizers (NPK) with DTPA 0.06 mM. Fruit yield of red pepper showed no significant difference between the treatments (control, NPK, DTPA 0.06 mM, 0.13 mM, except for DTPA 0.19 mM. Red peppers were killed by DTPA 0.19 mM treatment because the high concentration of DTPA was toxic to crop. However, dry mass (stem and leave) and nutrient uptake of red pepper in DTPA 0.06 mM treatment increased significantly compared with those of control. In particular, nutrient uptake of red pepper in DTPA 0.06 mM treatment increased in the order of Fe, Mn, and Zn > Ca and Mg > K, as the magnitude of the stability constants of DTPA. Thus the application of DTPA 0.06 mM was the most effective for the alleviation of nutrient accumulation in the plastic film house soils.

• 한국토양비료학회지
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• 제46권6호
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• pp.474-481
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• 2013

Understanding the microbial community structure of agricultural soils is important for better soil management in order to improve soil quality. Phospholipid fatty acid analysis has been popularly used in determining the microbial community structure in different ecosystems. The microbial community structure of paddy soil under long-term fertilizer treatments was investigated after 45 years using PLFA analysis. Treatments were control (no fertilization, Con), compost (COM), NPK, NPK+compost (NPKC), PK, NK, and NP. Soil chemical properties were mainly affected by the addition of compost and inorganic P fertilizer. Total nitrogen and organic matter contents were significantly higher in treatments with compost while available $P_2O_5$ and exchangeable calcium were significantly higher in treatments with added inorganic P fertilizer. It was found that microbial communities were responsive to the different fertilizer treatments. PLFA results showed that the soils were dominated by gram-negative bacteria, followed by the actinomycetes, then gram-positive bacteria, and fungi. Principal component analysis of the soil chemical properties and PLFA composition proved to be a more reliable tool because it was more responsive to the changes in soil chemical properties.

• 한국토양비료학회지
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• 제42권별호
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• pp.195-211
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• 2009

• 한국토양비료학회지
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• 제19권3호
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• pp.167-185
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• 1986

• 한국토양비료학회지
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• 제46권3호
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• pp.216-222
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• 2013

Fertilizer management has the potential to promote the storage of carbon and nitrogen in agricultural soils and thus may contribute to crop sustainability and mitigation of global warming. In this study, the effects of fertilizer practices [no fertilizer (Control), chemical fertilizer (NPK), Compost, and chemical fertilizer plus compost] on soil total carbon (TC) and total nitrogen (TN) contents in inner soil profiles of paddy soil at 0-60 cm depth were examined by using long-term field experimental site at $42^{nd}$ years after installation. TC and TN concentrations of the treatments which included N input (NPK, Compost, NPK+Compost) in plow layer (0-15 cm) ranged from 19.0 to 26.4 g $kg^{-1}$ and 2.15 to 2.53 g $kg^{-1}$, respectively. Compared with control treatment, SOC (soil organic C) and TN concentrations were increased by 24.1 and 31.0%, 57.6 and 49.7%, and 72.2 and 54.5% for NPK, Compost, and NPK+Compost, respectively. However, long term fertilization significantly influenced TC concentration and pools to 30 cm depth. TC and TN pools for NPK, Compost, NPK+Compost in 0-30 cm depth ranged from 44.8 to 56.8 Mg $ha^{-1}$ and 5.78 to 6.49 Mg $ha^{-1}$, respectively. TC and TN pools were greater by 10.5 and 21.4%, 30.3 and 29.6%, and 39.9 and 36.3% in N input treatments (NPK, Compost, NPK+Compost) than in control treatment. These resulted from the formation and stability of aggregate in paddy soil with continuous mono rice cultivation. Therefore, fertilization practice could contribute to the storage of C and N in paddy soil, especially, organic amendments with chemical fertilizers may be alternative practices to sequester carbon and nitrogen in agricultural soil.