• 한국토양비료학회지
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• 제35권6호
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• pp.381-386
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• 2002

관행시비 (4회 분시)에 비해 완효성 비료 2회 분시가 수량이 12.5% 증수하였으나, 1회 분시는 $6{\pm}3%$ 감소하였다. 관행시비에 비해 완효성 비료 2회 분시가 총질소, 총 아미노산, 엽록소, 비타민 C 함량과 감칠맛 주성분인 theanine, glutamic acid, arginine 함량이 많았고, tannin 함량은 적은 편이였으나, 완효성 비료 1회 분시는 2회분시와는 반대의 경향을 나타냈다. 형상, 향, 맛 등 제다품질은 완효성 비료 2회분시가 1회분시나 관행 시비 4회 분시에 비해 우수하였다. 결론적으로 완효성 비료의 분시효과가 우수한 이유는 비료성분이 서서히 용출되어 나와 효과적으로 작물에 공급되는 한편 비료성분의 손실을 줄일수 있었기 때문으로 판단된다.

• 한국토양비료학회지
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• 제46권6호
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• pp.652-658
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• 2013

A huge number of greenhouse soils in Korea have accumulated mineral elements which induce many nutritional and pathological problems. The present study was performed to the effects of the reduced fertilization on plant growth, and uptake and partitioning of minerals (N, P, K) and soluble carbohydrates using highly minerals-accumulated farmer's greenhouse soil. On the basis of the recommended application for tomato crop, the application rates of N, P and K were 110(50%)-5.2(5%)-41.5(35%)kg $ha^{-1}$, respectively, using Hoagland's nutrient solution. Tomato growth rates during the whole experiment were not significant between treatments, but it was found that a decrease in daily growth represented after 60 days of treatment (DAT). The reduced application led to a drastic decrease in the concentration of N, P and K in fruits, and, thus, this resulted in lower uptake after 40 DAT. The lower phloem export and utilization of soluble carbohydrates caused an accumulation of extra-carbohydrates in leaves, stems and fruits in the reduced application. The reduced fertilization induced the capture of N, P and K in leaves and of soluble carbohydrates in stems compared to the conventional application. In this study, we suggest that it is possible to delay the first fertigation time in minerals-accumulated soils without an adverse impact on crop growth, but it is necessary to regularly monitor mineral status in soil to ensure a balanced uptake, synthesis and partitioning of minerals and carbohydrates.

• 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

• 한국토양비료학회지
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• 제36권5호
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• pp.344-355
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• 2003

우리나라는 농경지 단위면적 당 화학비료 시용량이 높은 국가로 분류되고 있다. 화학비료 시용량 저감을 위해 정부에서는 1990년 들어 다양한 정책적 지원을 지속해오고 있다. 본 연구에서는 1999년 전국의 시군을 대상으로 농가비료이용실태를 작물별, 농지이용유형별로 조사하여 1992년 농가비료이용실태와 비교하였다. 주요 작물에 대한 유기질비료의 평균 시용율은 최근 크게 감소하였으나, 시설재배지와 밭토양에서의 유기물 시용율은 1992년과 큰 변화가 없었다. 농가포장의 화학비료 시용율은 대부분의 곡류와 채소작물에서 다소 감소하는 경향을 보였다. 화학비료 중 질소질 비료 시용율 감소는 거의 없었으며, 인산과 칼리질 비료의 시용량 감소가 전체 화학비료 시용량에 감소에 영향을 주었다. 이러한 화학비료 시용량 감소에도 불구하고 대부분의 작물에 대한 비료사용량은 추천 시비량을 크게 초과하고 있었다. 양분 투입량과 회수량간 차이를 이용하여 계산된 양분수지를 계산한 결과, 질소의 과잉시용은 거의 감소되지 않고 있으나, 인산과 칼리의 시용량은 1992년에 비해 1999년 각각 21%와 13% 감소되었다. 결과적으로 정부와 관련기관의 적극적인 홍보에도 불구하고 1999년 현재까지 농가포장에서는 비료가 과잉시용되고 있었으며, 이를 개선하기 위해 토양검정치를 기준으로 산정한 추천시비량 수준으로 양분 시용량의 저감을 위한 효과적인 기술지원과 지도관리가 필요할 것으로 판단되었다.

• 한국초지조사료학회지
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• 제8권2호
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• pp.99-103
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• 1988

With a purpose of finding out the effects of magnesium and boron enriched organic-compound fertilizer application on qualities of grasses on the hilly pasture, a field experiment was arranged with five different treatments as a randomized block design and lasted from September, 1984 to the end of growing season in 1986. The results obtained are summarized as follows: 1. Mean chemical components except NFE of grasses at the plots with organic-compound fertilizer application were appeared to contain slightly high comparing to single dressing. 2. Production of DCP with organic-compound fertilizer (1,170.2 kg/ha) was significanty increased by 20% comparing to single dressing (975.7 kg/ha) in the conventional fertilization level (p<0.05), but it was not significantly different between them in the low dressing level. 3. Production of energies (TDN, StE and NEL) with organic-compound fertilizer of low and conventional dressing level were appeared to increase by 10 and 13 to 15% than those of single dressing of the same levels, respectively. But it was not significant difference. 4. Like single dressing nutrient productions with organic-compound fertilizer were appeared significantly high due to increasing of dressing gradually (P<0.05-0.01) 5. Mineral contents of P and Mg at the plots with organic-compound fertilizer were a little higher, on the other hand, K, C/P and K/Ca + Mg equivalent ratio were slightly lower than those of single dressing, but the content of Ca tended to similar between them.

• 한국초지조사료학회지
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• 제8권3호
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• pp.99-103
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• 1988

With a purpose of finding out the effects of magnesium and boron enriched organic-compound fertilizer application on qualities of grasses on the hilly pasture, a field experiment was arranged with five dilferent treatments as a randomized block design and lasted from September, 1984 to the end of growing season in 1986. The results obtained are summarized as follows: 1. Mean chemical components except NFE of grasses at the plots with organic-compound fertilizer application were appeared to contain slightly high comparing to single dressing. 2. Production of DCP with organic-compound fertilizer (1,170.2 kg/ha) was significanty increased by 20% comparing to single dressing (975.7 kg/ha) in the conventional fertilization level (P<0.05), but it was not significantly different between them in the low dressing level. 3. Production of energies (TDN, StE and NEL) with organiccompound fertilizer of low and conventional dressing level were appeared to increase by 10 and 13 to 15% than those of single dressing of the same levels, respectively. But it was not significant difference. 4. Like single dressing nutrient productions with organic-compound fertilizer were appeared significantly high due to increasing of dressing gradually (P<0.05-0.01). 5. Mineral contents of P and Mg at the plots with organic-compound fertilizer were a little higher, on the other hand, K, C/P and K/Ca + Mg equivalent ratio were slightly lower than those of single dressing, but the content of Ca tended to similar between them.

• Applied Biological Chemistry
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• 제25권4호
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• pp.232-238
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• 1982

농가포장(農家圃場)(13개소(個所))에서 중질소비시험결과(重窒素肥試驗結果) 80%의 포장(圃場)에서 이용율(利用率)은 감법(減法)의 경우가 표식법(標識法)의 경우보다 높았으며 비료질소(肥料窒素)에 의(依)한 토양질소흡수(土壤窒素吸收)가 조장(助長)된 것을 나타낸다. 이 두 방법(方法)의 값은 포장간(圃場間)에에 류사(類似)한 경향(傾向)을 보였다. 황피뇨소(黃皮尿素)와 국지시용(局地施用)은 시비효율(施肥效率)(시비질소(施肥窒素) 당증수량(當增收量), Fe)을 분시(分施)의 15에서 23으로 증대(增大)시켰는데 이는 이용율(利用率)(Ef)을 29에서 50으로 증대시킨 때문이며 흡수시비질소효율(吸收施肥窒素效率)(Ef)은 50에서 46으로 감소하는 경향(傾向)을 보였다. 통일계(統一系)의 다수확능(多收穫能)은 흡수시비질소효율(吸收施肥窒素效率), 전이율(轉移率) 및 토양질소선호지수(土壤窒素選好指數)(시비질소흡수증가량(施肥窒素吸收增加量)에 대(對)한 토양질소흡수증가량(土壤窒素吸收增加量)의 비(比) PI)가 큰데 기인한 것 같다. 일련의 본(本) 연구(硏究)는 시비체계하(施肥體系下)의 수량(收量)은 이용율(利用率)과 흡수시비질소효율(吸收施肥窒素效率)의 적(積)인 시비효율(施肥效率)에 의존(依存)하며 비료(肥料)의 형태(形態)나 시비시기(施肥時期) 및 방법(方法) 등(方法) 시비관리(施肥管理)는 주(主)로 이용율(利用率)을 증대(增大)시키고 이용율(利用率)의 한계(限界)는 품종(品種) 특성(特性)에 주(主)로 기인(基因)하는 흡수시비질소효율(吸收施肥窒素效率)에 의(依)하여 조정(調整)됨을 보였다.

• 한국작물학회지
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• 제34권4호
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• pp.396-399
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• 1989

본 시험에서는 일반숙전과 신개간지 토양에서 비료 증시용이 진주조의 생산성 및 품질에 미치는 영향을 구명하기 위하여 수원 ,청주, 전주, 진주 및 북제주에서 1986∼'88년 시험한 주요 결과는 다음과 같다. 1. 질소시용량이 증가함에 따라사 초장, 청예수량, 및 단백질함량이 증가하였다. N30kg/10a까지는 도복이 많이 되었다. 초고가 1m 이상되고 일기가 불순하여 도복이 우려되면 지표면에서부터 20cm 남기고 예취하는 것이 바람직하였다. 2. 일반숙전토양에서 N45∼60kg/10a 구에서 평균 청예수량 12.7∼13.4t/10a이 생산되어 가장 증수되었다. 인산, 가리비료의 증시효과도 있었다. 특히 가리사료의 증시효과가 컸다. 3. 신개간지 토양에서도 개양식 배비구(60-60-40-4000kg/10a)에서 청예수량 12.6t/10a이 생산되어 표준비구에 비하여 38％ 증수되었다, 진주조 청예수량이 수수류나 옥수수에 비하여 월등히 증수되었다. 4. 청예용 식물체의 조단백질함량도 진주조 1회 예취에서 11.8％, 4회예취 평균 16.1％로 월등히 높았다. 소화율도 57.6∼63.4％로 옥수수 46.3％, 수수/수단그라스 47.3∼57.6％에 비하여 높았다.

• 한국유기농업학회지
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• 제13권2호
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• pp.211-221
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• 2005

This experiment was conducted to evaluate the effect of animal slurry on nitrogen uptake of hairy vetch and growth of chinese cabbage in cropping system. Hairy vetch was seeded on September 20 in 2003 . We examined the effect of cover crop(hairy vetch (Vicia villosa Roth) and slurry application(0, l00, 200kg N/ha) on yield and N uptake. Dry matter yield and nitrogen uptake of hairy vetch were measured. The chinese cabbage succeeding cover crop was harvested in 2004. The nitrogen uptake of hairy vetch was 84, 121, 148kg N/ha respectively, when the slurry application was 0, 100 and 200kg N/ha. In addition. N uptake of hairy vetch at the plot of 100kg and 200 kg N/ha slurry were 44% and 76% higher than that of the plot without slurry application respectively. Slurry application of hairy vetch could increase nitrogen uptake by application of green manure at the harvesting time. the content of organic matter and P-content of soil with hairy vetch plot was higher than that of fallow plot due to inhibition of soil erosion. The organic matter levels tend to improve with the addition of hairy vetch. Hairy vetch could improve soil quality by reducing erosion compared with bare fallow. The green manure of hairy vetch with animal slurry maintained soil nutrient and reduced nitrogen fertilizer of chinese cabbage. The hairy vetch residues decomposed rapidly releasing half of their residues within 40 days after burial. The yield of chinese cabbage was 90% in the plot of manure of hairy vetch compared with chemical fertilizer. The yield in the plot treated with green manure of hairy vetch and 50% of chemical fertilizer was reduced 5% less than that of chemical fertilizer. Therefore, it was estimated that the green manure of hairy vetch-chinese cabbage cropping system could reduce nitrogen chemical fertilizer as much as 84~148kgN/ha. the green manure of hairy vetch with animal slurry maintained soil nutrient and reduced nitrogen fertilizer of chinese cabbage.

• Plant Resources
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• 제8권1호
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• pp.32-35
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• 2005

This study was conducted to investigate the influence of $K_{2}O$ fertilizer application on growth, yield and lodging resistance of rice. Culm length and panicle length were lowest at the treatment of fertilizer level, $N-P_{2}O_{5}-K_{2}O=16-8-8$ plot but number of panicle, percentage of fruitful culm, $1{\ell}$ grain weights of paddy rice and brown rice, 1,000 grains weight of brown rice, brown rice ratio, yields of paddy rice and brown rice were highest at the treatment of fertilizer level, $N-P_{2}O_{5}-K_{2}O=16-8-8$ kg/10a plot. Bending moment, breaking strength and lodging index were lowest at the treatment of fertilizer level, $N-P_{2}O_{5}-K_{2}O=16-8-8$ kg/10a plot. Judging from the results reported above, an optimum fertilizer level of rice for lodging resistance is most likely be $N-P_{2}O_{5}-K_{2}O=16-8-8$ kg/10a treatment.