• 한국토양비료학회지
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• 제23권1호
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• pp.26-33
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• 1990

1. 두 토양(土壤) 모두에서 무비구(無肥區)에 비하여 BIO-COM, 퇴비 및 N-P-K 비료시용은 모두 수량증수효과(收量增收效果)를 보였으나, 그 중 BIO-COM 효과가 가장 크며 Humic acid 처리는 오히려 수량을 감소시켰다. 2. 특히 BIO-COM은 삼요소(三要素) 무시용구(無施用區)에서는 4% 시용수준(施用水準)까지, 그리고 삼요소(三要素) 병행(竝行) 시용구(施用區)는 2% 수준까지 수량증가(收量增加)를 보였다. 3. 수도수량(水稻收量)은 수량구성요소중(收量構成要素中) 주당수수와 고도(高度)의 유의성(有意性) 있는 정(正)의 상관관계(相關關係)를 보였으나 천립중(千粒重)과는 부(負)의 상관(相關)을 보였다. 4. BIO-COM 시용은 수도재배후(水稻栽培後) 토양의 pH, EC, OM, T-N, Av-P, Ex-Ca, Ex-Mg, 그리고 $Av-SiO_2$ 함량을 증가시켰다. 5. BIO-COM 시용은 전생육(全生育) 시기별(時期別) 초장, 분얼수, 생물중 및 건물중을 증가시켰으며, 또한 이들 상호간에는 고도의 유의성 있는 정의 상관관계를 보였다. 6. 두 토양 공히 처리에 따라 수도체중의 엽록소함량(葉綠素含量) 및 질소, 인산, 칼슘, 마그네슘함량이 증가되었다. 7. 토양의 pH, 전기전도도, 유기물, 전질소, 치환성칼슘, 마그네숨 함량과 수량간에는 유의성 있는 정의상관을 보였다. 8. 최고 분얼기, 출수기의 수도체중의 질소, 인산함량과 수량간에는 고도의 유의성 있는 정의상관율 보였다.

• 한국토양비료학회지
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• 제17권1호
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• pp.24-29
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• 1984

왕겨부초와 피트시용한 묘포(苗圃)에서 묘삼수량(苗蔘收量)은 토양수분(土壤水分)에 의존(依存)하였으며 이 의존도는 토양칼리가 감소할수록 증가하였다. 부초와 피트처리는 토양수분을 증대시켰다. 수량의 토양수분 의존도에 대한 칼리의 영향은 일정수분 범위에서 일정할 것으로 보이며 이 수분범위는 묘삼생육의 적정수분 범위일 것 같다. 수량과 토양수분의 편상관계수 유기물, Mg, Ca에 관하여 유의성이 있었다. 수량에 관한 최적 다중(多重)회귀는 수분, K, Ca,의 조합이었다. 토양유효인산은 부초에 의하여 증가되고 피트 저수준에서 증가되나 고수준에서 감소되었다. 토양수분, pH, Ca, Mg, K, OM의 두 요인 간에는 K와 수분 또는 pH관계를 제외하고 직선유의상관이 있었다. 암모니아태질소는 Mg와 부 상관이었다. 질산태질소와 K 또는 $NH_4-N$간에 그리고 P와 K+Ca+Mg간에 2차회귀관계가 있었다. 토양요인 간에는 직선관계보다 2차회귀관계가 유의성이 컸다. 부초는 경장을 증가시켰으며 엽면적지수는 1.06~1.67범위였고 묘당엽 면적은 $16.0cm^2{\sim}18.8cm^2$범위였다.

• 한국초지조사료학회지
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• 제17권2호
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• pp.117-122
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• 1997

This experiment was conducted to evaluate the forage yield and quality and the possibility to provide Festulolium bmunii(Festuca pratensis $Huds{\times}Lolium$ mult~jlotum Lam.) as forage source in Korea. The Festuloliurn braunii were harvested at boot, heading and anthesis stage, respectively. The field trials were performed 6om 1994 to 1996 at the forage experimental field, College of agriculture, Chunpam National University. The results obtained were summarized as follows: 1. The date of boot, heading and anthesis stage of Festulolium bmunii observed in Taejon were May 12, May 23 and June 1 in 1995, and June 1, June 4 and June 9 in 1996, respectively. Winter survival percentage of Festulolium bmunii war ranged 6om 96% to 98% and summer survival percentage were 75-86%. It would suggest that Festulolium brawlii persisted well in the aspect of overwintering, while it wasn' t widely adapted to drought and high temperature in Taejon regions. 2. The CP content and DMD of Festulolium bmunii tended to decline as the growth stage advanced. The CP content and DMD of Festulolium bmunii were high at the boot stage and those at the anthesis stage were low. But fiber contents at the boot stage were lower than those at anthesis stage(P< 0.05). The yields of the DM and DDM with advancing the growing stage tended to increase, while there was no difference in the CPDM yields among stages. On the otherhand, the yields of DM and DDM at the anthesis stage were the highest (P< 0.05), but there was no difference in CPDM yield among stages. Based on the results mentioned above, it is suggested that Festulolium b m n i i has a possibility to use until the anthesis stage under the cutting regimes and that it has a potentiality to provide one of a good forage sources. %'ifqqiZ 43q *(College of Agriculture, Chungnam National Un~versity, Taejon 305-764, Korea)

• 자원리싸이클링
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• 제8권3호
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• pp.43-48
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• 1999

석탄회로부터 미연탄소분을 제거하기 위한 처리방법으로 습식부유선별법을 적용하였고 이에 사용된 포수제는 한국자원연구소에서 개발한 "Carbon zero(C.Z)"서 기초 실허 a 및 Pilot 실험을 하여 미연탄소분 함량이 0.1%, 실수율 72%wt.와 Pilot 실험은 미연탄 소분 함량이 0.1%, 실수율 73%wt.을 얻었다.%wt.을 얻었다.

• 한국토양비료학회지
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• 제21권2호
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• pp.177-181
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• 1988

산지(産地) 반양직묘포(半養直苗圃)(활엽수(闊葉樹)를 많이 넣고 여러번 경운(耕耘)한 밭흙을 곱게 쳐서 만든 묘포(苗圃)) 29개포장(個圃場)에서 묘포토양(苗圃土壤) 이화학성(理化學性)과 묘삼수량(苗蔘收量)과의 관계룰 조사한 결과(結果)는 다음과 같다. 1. 사용가능묘삼생산량(使用可能苗蔘生産量)은 간(間)($90{\times}180cm$) 당(當) $362{\pm}226$본(本)이었다. 2. 세사(細砂)+극세사(極細砂)의 함량(含量)이 많을수록 묘삼개체근중(苗蔘個體根重)이 감소(減少)되었다. 3. 묘포토양내(苗圃土壤內)에서 pH는 OM, K, Ca 및 Mg와, EC는 Ca, Mg 및 N와 각각(各各) 정상관(正相關)이 있었다. 4. 묘삼개체중(苗蔘個體重)은 토양내(土壤內) pH 상승(上昇)과 OM, K, Ca 및 $P_2O_5$ 함량(含量)이 많을수록 증가(增加)되나 N과는 상관(相關)이 없었다. 5. 토양내(土壤內)에 $P_2O_5$, K 및 Ca 함량(含量)이 많을수록 묘삼근내(苗蔘根內) 함량(含量)이 증가(增加)되었다. 6. 근내(根內)의 $P_2O_5$, K의 흡수(吸收)가 증가(增加)될수록 묘삼개체근중(苗蔘個體根重)이 증가(增加)되었다.

• Asian-Australasian Journal of Animal Sciences
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• 제13권4호
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• pp.490-496
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• 2000

In vivo digestibility, nitrogen retention and microbial protein yield from diets of 100% ammonia treated rice straw (ARS) ($D_1$); 65% untreated rice straw (URS)+30% rice bran (RB)+5% SBM ($D_2$) and 85% ARS+15% RB ($D_3$) were determined using three Japanese Corriedale wethers in a $3{\times}3$ Latin Square Design. Results showed that DM consumption and organic matter digestibility were highest in $D_3$; but did not promote high protein digestibility, which RB+SBM had effected in URS based-diet. Dry matter intake and OM digestibility were the same for $D_1$ and $D_3$. Solubility of fiber bonds was increased by ammoniation, resulting in higher NDF digestibility. Nitrogen retention and microbial protein yield of rice bran supplemented groups was higher than ARS, but supplementation did not significantly increase efficiency of microbial protein synthesis from ARS which did occur when RB+SBM was added to untreated straw. The quality of ammoniated rice straw could be improved through RB supplementation because of its positive effects on DM digestibility, nitrogen retention and microbial protein yield. However, the addition of RB+SBM to URS resulted to more efficient N utilization.

• 한국초지조사료학회지
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• 제17권1호
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• pp.75-81
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• 1997

This study was wnducte to investigate the effects of treatment level and seasons of sluny hm bovine feces on the productivity of rye, N efficiency and improvement of soil fertility under the Korean climate condition. The results obtained fiom this study summarized as follows ; 1. The highest dry matter yield of rye was obtained in the partial fertilization of sluny in spring or autumn. There is no differences of dry matter yield between spring and autumn application. 2. With increasing the amount of slurry-N, the dry matter yield of rye was signigicantly increased up to 100Kg sluny Nha. As the level of slurry-N rises above about 100Kg N/ha, the maximal yield of dry matter was unchanged or declined. 3. As the level of sluny fertilization rises, the crude protein content of rye increases significantly. However the contents of crude protein was less affected by the application seasons. 4. The amount of nitrogen which produced 6om rye is dependent upon the level of slurry-N. The highest nitrogen yield of rye was obtained by the partial fertilization of sluny-N. 5. The season or amount of slurry treatments did not affect the organic matter content in soil. N-content in soil was the lowest by the partial fertilization of slurry in spring or autumn. However, N-content was increased with the higher level of sluny-N.

• 한국유기농업학회지
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• 제6권2호
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• pp.107-116
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• 1998

The result of application of the organic manure obtained from livestocks fed with BLCS in the altari radish under structure were as follow. The no. of leaves, leaf, root length, root width, and total weight of altari radish treated with dong of fowl(BLCS) were the highest in any other treatment, and cattle drop-ping (BLCS) was higher, also. The contents of total N, P2O5, K2O, CaO, MgO, and sugar content in the altari radish treated with dong of fowl(BLCS) were the highest, and the second was cattle dropping (BLCS). The contents of OM, P2O5, K, Ca, Mg, and CED of soil treated with microorganism were the highest in the cattle dropping (BLCS) in any other plots, however. In general, effect of cattle manure fed with BLCS on the altari radish yield and mi-crobial activity were higher than cattle manure did not feed BLCS.

• 한국토양비료학회지
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• 제44권2호
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• pp.306-307
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• 2011

Two phases of experiment were conducted to produce compost using sewage sludge and sawdust as mixing materials to determine their chemical properties and the performance of selected test crops. The first phase was done to produce compost as potting media and the second phase was done to test the efficacy of the produced compost. With regard to some chemical properties of the compost, pH was moderately acidic (5.11 to 5.58) while the OM, N, P, and K contents of the compost were 23.8-35.9, 1.12-1.56, 254.9-555.7, and 40.4-62.6, respectively.

• Asian-Australasian Journal of Animal Sciences
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• 제14권3호
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• pp.326-332
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• 2001

On a urea-molasses-straw (3:15:82; UMS) based diet effect of graded levels of cottonseed cake (CSC) supplementation on the performance of native (Bos indicus) bulls has been studied for 167 days. Eighteen growing bulls of $129{\pm}13.4kg$ weight and about 14 months old were randomly allocated to three dietary treatments designed in a completely randomized design, having six animals in each treatment. Three dietary treatments were 0, 0.5 and 1.0 kg CSC per head/d. In addition, each animal also received ad lib. UMS, 4 kg Napier (Pennisetum purpureum) grass, 500 g of each of rice and wheat bran and 60 g mineral mix daily. For unit increase in CSC, total DM intake was increased by $1g/kg\;W^{0.75}/d$ but the straw DM intake decreased by $0.54g/kg\;W^{0.75}/d$. Whole gut digestibility of DM and OM was not effected but N and ADF digestibility increased with incremental increase in dietary CSC. For unit (1kg) increase in dietary CSC intake N and ADF digestibility increased by 10 (${\pm}1.155$) and 3 (${\pm}1.732$) unit respectively. Microbial N yield for the 0, 0.5 and 1.0 kg CSC were 5.63, 5.28 and 5.16 g/kg OM apparently fermented in the rumen respectively. For each gram increase in CSC, N intake and N balance increased by 0.626 (${\pm}0.015$) and 0.625 (${\pm}0.0814$) mg/kg $W^{0.75}/d$. High apparent N balance was contrasted with low live weight gain, e.g., for 1 kg increase in CSC supplementation, live weight gain increased by only 0.077 (${\pm}0.00288$) kg/d ($r^{2}=0.99$; p<0.01). The conversion efficiency was 12.98 kg CSC per kg of live weight gain. It was concluded that unless the protein is being protected from the rumen degradation, addition of CSC to UMS diet would have little nutritional or economic advantages.