This experiment was carried out to determine the effect of organic fertilizer and seed mixture on productivity, botanical composition and forage quality in middle areas(Geumsan, 250m sea level) pasture. Total six experimental pastures (orchardgrass, timothy and tall fescue based seed mixture and with or without organic fertilizer) were established in autumn, 2014 and evaluated productivity and agronomic characteristics from 2015 to 2016. Plant heigh was higher in orchardgrass based mixture and orchardgrass and tall fescue based mixture were higher in 2nd harvest. There was not found the significant difference among treatment(P<0.05) in dry matter (DM) content. Botanical composition in 1st harvest was higher weed portion in orchardgrass based mixture and legumes was disappeared at 3rd harvest in all treatments. Fresh and dry matter yield was higher in 2nd year than 1st year. In 1st year, orchardgrass based mixture with organic fertilizer plot was the highest(P<0.05) DM yield, but tall fescue based mixture with organic fertilizer was the highest in 2nd year. Content of crude protein (CP) was the highest in tall fescue based mixture and Timothy based mixture showed low in ADF (acid detergent fiber) and NDF (neutral detergent fiber) content. But the content if in virto dry matter digestibility was higher than others. In 2nd year, the nutritive value of 2nd and 4th harvested grasses were higher and average RFV (relative feed value) value was the highest at 4th harvest. According to this result, orchardgrass and tall fescue based mixture would be recommendable for farm who considering productivity and timothy based mixture would be recommendable for considering forage quality in middle areas of Korea.

This experiment was carried out during the period from September, 1997 to October, 1998 to determine the effect of fermented saw-dust pig manure (FSP) application on the herbage production on a mixed pasture in the Cheju brown volcanic ash soil. Split plo

The effects of different fertilizer management on herbage production and botanical composition were determined. Field experiments were conducted during 1991 - 1993 on sandy loam soil at Allgiu south western Germany under variabling fertilizer management;

To find out the residual effect of phosphate fertilization on botanical composition, mineral contents and mineral nutrient deprivation of pasture plants, this experiment was arranged as a randomized complete block design with six treatments(0-0, 50-50, 10

본 시험은 초지조성시와 관리시에 시용하는 인산질 비료의 시용이 초지식생, 목초 및 토양의 무기물함량에 미치는 영향을 구명코자 무시용구의 3처리를 난괴법 3반복으로 포장 배치하여 1989년 9월부터 1991년 10월까지 수원 근교에서 수행되었던 바, 그 결과를 요약하면 다음과 같다. 1. 인산질 비료 무시용구의 식생은 불량하였으며 인산시용에 의해서 두과 목초의 비율이 증가되었는데 특히 초지관리시의 인산효과가 현저하였다. 2. 목초의 무기물 함량중 질소,

To find out the effect of different patterns of nitrogen and potassium distribution on dry matter yield and botanical composition of temperate pastures, a field experiment was conducted with 6 treatments replicated 3 times in a randomized complete block d

山地초지에 고토와 함유된 有機質複合비료의 施用이 목장의 건물수량, 수량구성요소 및 식생변화에 마치는 影響을 究明코자 비종과 시비수준을 달리한 5處理를 亂塊法 3反復으로 團場配置하여 1984年 9月부터 1986年 10月까지 水原 근교의 신 개척지에서 本 試餘을 수행하였던 바 그 결과를 요약하면 다음과 같다. 1. 목장의 耐冬性, 生育勢 및 被覆率 等 初期生 育狀態는 有機質複함포료 施用區가 단비시용에 比해 良好하였다. 2. 2年평균 목장의 乾物收量은 시비水

With a purpose of finding out the effects of magnesium and boron enriched organic-compound fertilizer application on the dry matter yield, yield components and changes in the botanical composition on the hilly pasture, a field experiment was arranged with

본(本) 시험(試驗)은 춘파초지조성시(春播草地造成時) 목초(牧草)의 정착(定着)과 수량(收量) 및 식생변화(植生變化)를 조사(調査)하기 위(爲)하여 조성시(造成時)의 기비량(基肥量)을 2수준(水準)(N:P2O5:K2O=80:200:70 및 160:200:140kg/ha), 관리시(管理時)의 질소(窒素) 및 가리(加里) 분시방법(分施方法)을 3수준(水準)(봄 다비(多肥), 균등분시(均等分時), 가을 다비(多肥))으로 하여 분할구법(分割區法) 4반

Biomass crops have potential as a source of renewable CO2-neutral energy to ease concerns about fossil fuel consumption. Therefore, there is an increasing interest in high biomass crops such as switchgrass (Panicum virgatum L.). Switchgrass is a perennial C4 grass that requires low cost for biomass production. In the previous study, we evaluated forty switchgrass germplasms for biomass yield and classified the germplasms into the high-, medium-, and low-yielding groups. In this experiment, we evaluated response of switchgrass accessions to fertilizer applications. A recommended level of fertilizer was applied to the field and responses of morphological and agronomic characteristics affecting biomass productivity (panicle length, clum length, leaf width, thickness, tiller numbers, effective tiller numbers, seed weight, plant weight) were analyzed. Also, the composition of organic compounds (crude protein, crude fat, ash, glucose, xylose) and mineral elements were analyzed for the two selected lines from each biomass yield group by the levels of exchangeable cations in the soil. Positive correlations were found between biomass yield and content of crude protein, crude fat, ash, T-N, glucose, and xylose. However, no relations were found between biomass yield and mineral elements such as Na, P, K, Fe and Zn. Biomass yield was increased by 1.9-fold by the fertilizer application and the traits most significantly affected by fertilizer application were effective tiller number and plant weight. The accessions that showed less than 10% increase in biomass productivity by the fertilizer application were accession 26, 29, 13, and 18. This study was supported by Technology Development Program for New Bioenergy (subject number-20070301030016), Rural Development Adiministration, Republic of Korea.

본 실험은 기내에서 생산된 나팔나리 ‘죠지아’ 소인경의 식재시 배양토와 시비조건이 줄기와 구근 생육에 미치는 영향을 알아보고자 실시하였다. 피트모스와 펄라이트 단용 처리는 줄기와 구근생육이 불량하였고, 피트모스와 버미큘라이트를 2:1로 혼용한 배양토에서 가장 양호하였다. 왕겨는 혼용비율이 높아질수록 소인경의 생육이 불량하였다. 무시비구에서는 전반적으로 소인경의 줄기 및 구근의 생육이 불량하였고, 다른 처리에서는 큰 차이가 없었다. 합리적인 시비를 위해서는 1+1+1/2(퇴비+기비+추비)이 추천되었다.

답리작과 전작 유채재배에서 지방산조성이 개량된 품종을 공시하여 시비량을 달리했을 때의 토양화학적 성질, 종실의 유분함량 및 지방산조성의 변화를 조사한 결과를 요약하면 다음과 같다. 1. 유분함량은 전작재배에서보다 답리작재배에서 높았고 지방산조성에서는 Palmitic. Linoleic. Linolenic acid함량은 답리작재배에서 높았으며 Stearic과 Oleic acid는 전작재배에서 높아지는 경향이었다. 2. 질소시용은 많을수록 함유율이 증가하는 경향이나 15kg/10a 이상에서는 오히려 감소하였으며 인산과 가리는 모두 증가할수록 함유율이 증가하였다. 3.양질 지방산인 Oleic+Linoleic acid의 함량은 답리작보다는 전작재배의 경우 평균 2∼5％ 더 높아서 유질이며 우수하였다. 4. Oleic acid와 Linoleic acid 함량은 질소의 증시에 의해 증가하는 경향이며 인산과 가리에서는 전작인 경우 8kg/10a까지는 증가하나 그 이상에서는 감소하였으며 답리작에서는 인산, 가리의 증시효과가 없었다