• 한국농공학회논문집
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• 제52권4호
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• pp.63-71
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• 2010

This study was performed to evaluate the planting properties and root potential of planting block with mixing seeding of herbaceous plants and cool-season grasses in CSG blocks manufactured by cemented sand and materials (CSG) in order to develop environmentally friendly CSG block applied revegetation. Five types of CSG mix designs with cement contents were determined, and the mechanical properties of CSG materials were studied experimentally. To analyze growth properties of plants within CSG block, germination ratio, visual cover, plant height and root potential were measured in four weeks and eight weeks after seeding. The germination regardless mixture seeding of plants and CSG mixproportions started within 4 ~ 7 days after seeding and the germination ratio were in the range of 60 ~ 65 %. The visual cover of kinds of plants evaluated by visual rating system were in the range of 6 ~ 8 in case of seeding the species of cool-season grasses and were in the range of 4 ~ 6 in case of seeding the species of herbaceous plants in four weeks after seeding. The root potential of CSG block with the species of cool-season grasses and herbaceous plants were in the range of $5.7{\times}10^{-3}{\sim}7.7{\times}10^{-3}$ MPa and $2.3{\times}10^{-3}{\sim}6.7{\times}10^{-3}$ MPa in eight weeks after seeding, respectively.

• 한국작물학회지
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• 제36권4호
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• pp.360-365
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• 1991

청예용 수수의 생력기기화 파종방법을 구명하기 위하여 파종방법을 인력세조파, 인력산파, 기계세조파(맥류세조파기)로 처리하여 파종소요시간, 생육 및 수량에 미치는 영향 검토한 결과를 요약하면 다음과 같다. 1. 파종소요시간은 인력세조파의 510분/10a보다 기계세조파가 42분/10a이 소요되어 12.6배가 효율적이었으며, 기계세조파의 입모율은 83%로서 인력세조파 및 인력산파보다 양호하였다. 2 파종방법별 경직경은 인력산파가 인력세조파 및 기계세조파보다 굵었고 $m^2$경수는 반대의 경향이었으며. LAI는 기계세조파의 30$\times$5cm, 40$\times$5cm가 인력산파 및 인력세조파보다 컸다. 3. 기계세조파는 인력세조파보다 엽이 층위별로 고른 분포를 나타내어 수광태세가 양호하였으며, 예취당시 그루터기 저장탄수화물함량도 많았다. 4. 일반조성함량은은 기계세조파 및 인공세조파간의 차이가 크지 않았으나, 인력산파는 조단백질 및 NFE함량이 낮고 조섬유함량이 다소 높았다 5. 건물 및 TDN수량은 기계세조파 40$\times$5cm가 1,933kg/10a, 1,039kg/10a로 인력세조파에 비하여 각각 29, 30% 증수하였다.

• 한국조경학회지
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• 제27권2호
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• pp.51-57
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• 1999

Planting methods of seeding, seed net, sprig net and sprigging were evaluated for influence on the covering rate and the growth of Phragmites spp. The results were as follows. 1. Covering rate was high within 4 months when propagated by sprig net, seeding and sprigging but became same within 5 months afterwards regardless of Planting methods. 2. Growth of leaf height and width was high on vegetative types of Planting methods such as sprig net and sprigging when compared with on seed types of Planting methods such as seeding and seed net. 3. Sprig net showed good covering rate and growth than sprigging when compared within vegetative types of planting. 4. In this study, sprig net was figured out as the best type of Planting methods than any other types of Planting methods for the restoration of a shore vegetation in a urban stream.

• 한국작물학회지
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• 제45권1호
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• pp.14-19
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• 2000

In order to develop an appropriate cultural practice for a newly bred 2-rowed, waxy, naked barley cultivar 'Duwonchapssalbori' in the southern region, 2 varieties, 3 seeding dates, 4 seeding rates were designed with 2 replications. The heading and maturity dates of 'Duwonchapssalbori' were' earlier than 'Saessalbori by 2-5 and 4 days, respectively. Culm length of 'Duwonchapssalbori' was 60 to 66cm with lodging resistance. Grain yields of both varieties were 4.28-4.33 ton/ha in the plot of Oct. 20 seeding, 4.11-4.18 ton in the plot of Oct. 28 seeding, and 3.7-13.89 ton/ha in the Nov. 5 seeding. Grain yield with different seeding rates highly significantly fitted with secondary polynomial equations in the plots of Oct. 20 and Oct. 28 seedings ($R^2$=0.84-0.85), showing the greatest yield with seeding rate of 140kg per ha. However, the grain yield with various seeding rates in the plot of Nov. 5 seeding showed simple linear regression ($R^2$=0.71), showing the seeding rate over 160kg in the case of later seeding to be optimal. Number of spikes per $m^2$ significantly contributed to grain yield, and fitted to simple linear regression ($R^2$=0.881-0.891), suggesting that plenty of early stands should be established at early seedling stage for high grain yield. Young spikes of 'Duwonchapssalbori' in the plot of Oct. 20 seeding elongated with linear increments since Feb. 10 (6.7mm), and showed rapid increment since March 7 (15.1mm). However, elongation of young spikes of 'Saessalbori' began from March 15 with slow increments. From these studies, the optimum seeding date and seeding rate in 'Duwonchapssalbori' were Oct. 20-28 and 140kg per ha for high grain yield in the southern regions.

• 한국환경복원기술학회지
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• 제2권2호
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• pp.33-42
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• 1999

The objective of this study was to determine the optimal amount and the mixture ratio of seeds for revegetation species by investigating their growth characteristics. For the purpose of the experiments, 15 plants were chosen. In May of 1995 to September of 1998, the nursery seedbeds of the College of Agriculture and Life Sciences, Seoul National University were seeded with the mixtures of those species. Then, the nursery seedbeds were treated to investigate the effects of the amount of seeding, the amount of fertilizer, and the depth of soil on the growth characteristics. As the results of the experiments, it was found that the effects of all the treatments on growth of shoots and roots were significant in the early phase. For the expected number of seedlings more than 3,000 per square meter, many seedlings got withered to death while the survivors were suppressed to grow slow in the early stage due to the density problem.

• 한국작물학회지
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• 제41권1호
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• pp.123-130
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• 1996

국내 쌀 생산비를 절감하여 국제경쟁력을 제고시키기 위한 일환으로 벼 담수표면직파재배에서 많이 발생하는 도상에 대한 기초연구로 담수표면직파재배에 있어서 파종량과 생장조절제 처리에 따른 내도복성과 수량성에 대한 시험을 하였던 바 그 결과를 요약하면 다음과 같다. 1. 파종량에 따른 입묘수는 60.9~143.4개/$m^2$의 분포를 보였으며, 립묘율은 71.7~76.1%로 양호한 경향이었다. 2. 파종량이 많을수록 간장이 길었으며, 생장조절제 KIM-112 처리에 의한 하위절간의 단축으로 간장 단축이 뚜렷하였고, 처리시기에 따라 단축정도는 각각 달랐다. 3. 생장조절제 KIM-112 처리는 엽각과 상위엽을 작게하여 직립화에 의한 수광태세가 개선되었으며, 또한 간기중이 증가하였으며 파종량이 많을수록 도복경감 효과가 컸다. 4. 줄기 좌절시 모멘트와 간직경은 파종량이 많을수록 감소하였으며 그 정도는 KIM-112 처리에서 훨씬 작았고, 단위면적당 이삭수는 파종량이 증가함에 따라 많아졌고, 등숙률과 천립중은 KIM-112처리에서 약간 높았다.

• 유기물자원화
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• 제4권1호
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• pp.1-11
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• 1996

음식물 쓰레기의 고온 퇴비화 과정에서 종균 첨가가 미생물의 변화에 미치는 영향을 조사하였다. 실험실용 소형 퇴비화 장치에 선발한 고온성 세균, 효모 및 고온성 세균, 효모 복합종균을 첨가하여 $50^{\circ}C$에서 분해시키면서 고온성 세균과 효모의 생육 및 pH의 변화를 측정한 결과, 모든 실험구에서 효모가 우선적으로 생육하였으며 고온성 세균은 그보다 1일 또는 2일 후에 생육하였다. 종균으로 고온성 세균만 사용한 경우는 효과가 거의 없었으나 고온성 세균과 효모의 복합 종균을 첨가한 경우에는 고온성 세균의 생육이 현저히 촉진되었다. 특히 효모 종균을 단독으로 첨가한 경우에도 고온성 세균의 수가 반응 시작부터 급속히 증가하였다. 이러한 결과는 음식물 쓰레기의 분해시 고온성 세균의 증식에는 효모의 역할이 필수적인 것으로 나타났으며 그 이유는 효모가 세균의 생육을 저해하는 유기산을 제거하기 때문으로 밝혀졌다.

• 아시안잔디학회지
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• 제9권3호
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• pp.187-198
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• 1995

The objective of this research was to produce sod by box seeding for zoysiagrass or by vegetative propagation for zoysiagrass and manilagrass.1 Various ratio of peatmoss to sand(v /v) were prepared to find idea[ medium for fast and light weight sod production. Then, the days required for sod formation, the effect of growth regulators on the growth of turfgrass, and the various storage methods for winter keeping of sods were also investigated. 1.The mixed medium of sand and peatmoss(v /v, 1 : 2) showed more biomass production than that of sand. 2.In comparison of seeding rate of zoysiagrass, the amount of log /$m^2$ was most effective in the fast and dense sod formation. The amount of 20g /$m^2$ also showed fast sod formation. But, it resulted in weak plant and less tillering. During April to June, about 100 days were required to form sod with seeding rate of 5g /$m^2$ regardless of seeding time. Whereas 80 days were required to form sod in the rate log /$m^2$, which was 20 days shorter than that of 5g /$m^2$. 3.More than 85% of shoots in sod stored in field or plastic house during the winter time resumed the growth in good appearance after transplanting. The whole covering of ground with sod resulted in less weeds and faster formation of lawn. 4.Vegetative propagation of manilagrass showed about 7 to 15 days faster formation of sod than that of zoysiagrass. Application of GA increased shoot growth and BA increased the total number of tillering. However, the effects of the combined application of GA and BA were negligable.

• 한국작물학회지
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• 제31권2호
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• pp.204-213
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• 1986

벼 침수토중 직파재배의 기술확립을 위하여 1985년 작물시험장에서 벼 종자에 과산화칼슘(CaO$_2$) 분의처리 효과와 온도 및 파종 심도에 따른 품종별 출아 및 초기생육을 검토한 결과를 요약하면 다음과 같다. 1. 과산화칼슘 종자 분의는 무처리에 비하여 출아 및 입모가 현저히 좋았으며 초기 생육도 좋았다. 2. 벼 종자의 과산화칼슘 분의 효과는 고온(29/21$^{\circ}C$)보다는 저온(12/12$^{\circ}C$, 17/17$^{\circ}C$) 조건에서 컸다. 3. 파종심도에 따른 출아율은 토중 1 cm 깊이에서 가장 좋았다. 4. 침수토중 직파조건하에서 출아율이 높은 품종은 일반계는 천마벼, 남양벼, 기호벼, 추정벼, 낙동벼, 동진벼 이고 다수계 품종은 태백벼, 삼강벼, 가야벼 등이었다. 5. 침수토중 직파시에는 저온하에서 출률이 높은 품종의 선정 및 출아구을 높히기 위한 검토가 앞으로 중요한 과제가 될 것으로 생각된다.

• 한국환경복원기술학회지
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• 제12권2호
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• pp.29-39
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• 2009

Research was initiated to investigate a vegetation characteristics of the winter season by seeding periods. 3 seeding periods (Mid-December seeding plot, Late January seeding plot and Early March seeding plot) and 3 zones (the top zone, the middle zone and the bottom zone) in each plot were treated with 3 replications on the experimented slope. Data such as vegetation coverage (%), soil hardness (MPa), temperature ($^{\circ}C$) and moisture (%) content were analyzed. The vegetation coverage was high in Early March seeding plot, medium in Mid-December, and low in Late January seeding plot. Early March seeding plot was effective in moisture content, soil hardness, and temperature for the growth of vegetation when compared to Late January seeding plot and Mid-December seeding plot. From the standpoint of coverage ratio of plant species, the coverage of Dianthus sinensis and Albizzia julibrissin were high in the Late January seeding plot whereas the coverage of Lotus corniculatus and Cool-season turfgrass were high in Early March seeding plot. These results indicated that the high vegetation coverage of Dianthus sinensis and Albizzia julibrissin in Early March seeding plot was caused by scarification during winter season. There was no difference observed in plant height regardless of seeding periods except in early surveying time of May and June after seeding. As far as each zone of the plot was concerned, the vegetation coverage was high. in the bottom zone, medium in the middle zone and low in the top zone. The bottom area of the experimented slope was high in moisture content when compared to the middle zone and the top zone.