• 한국초지조사료학회지
• /
• 제34권4호
• /
• pp.234-239
• /
• 2014

본 시험은 사료용 총체 벼 직파 재배시 파종량이 수량 및 사료가치에 미치는 영향을 구명하기 위해 2007년부터 2008년까지 국립축산과학원에서 수행되었다. 총체 벼는 국립식량과학원에서 육종한 녹양벼를 이용하여 4개의 파종량을 두고(30, 60, 90 및 120 kg/ha) 수행하였다. 출현일, 출수기, 녹색도 및 내병성은 파종량에 따른 차이는 나타나지 않았다. 초장은 파종량이 늘어남에 따라 커졌으며(p<0.05) 분얼수는 줄어들었다. 건물함량은 유의적인 차이를 나타내지 않았으나 생초 및 건물수량은 파종량이 증가함에 따라 유의적으로 증가되었다(p<0.05). 조단백질 함량은 파종량이 늘어남에 따라 감소되었으며 ADF 함량은 파종량이 늘어남에 따라 높아졌고 NDF 함량은 일정한 경향이 없었다. TDN 함량은 120 kg/ha 처리구에서 가장 낮았고, 잎-줄기-정조 비율은 파종량이 늘어남에 따라 정조비율은 줄어들었으며 잎의 비율은 약간 높아졌고 줄기는 큰 차이가 없었다. 경제성 분석결과 60 kg/ha 파종구에서 가장 높은 소득 증가가 있는 것으로 나타났다. 따라서 이상의 결과를 종합하여 볼 때 총체 벼 직파재배를 위한 적정 파종량은 60kg/ha 내외가 적당한 것으로 추천된다.

• 한국초지조사료학회지
• /
• 제12권1호
• /
• pp.59-66
• /
• 1992

본 시험은 봄 연맥(Avena sativa L.)에 대한 파종량및 질소시비수준이 생육특성, 사료가치 및 사초의 수량에 미치는 영향을 알아보고자 1987년 9월부터 11월 까지 약 2개월간에 걸쳐서 수행되었으며 그 결과를 요약하면 다음과 같다. 1. 출현솔은 파종량이 ha당 120,160 및 200kg으로 증가함에 따라서 93.4, 71.4 및 70.6%로 낮아졌다(P<0.01) 2. 분벽솔 발생은 파종량의 증가에 대하여 유의적인 감소가인정되어(P<0.05), ha당 파종량 120kg, 질소시비수준 200kg인 구가 3.3개로 가장많았던 반면 파종량이 200dkg으로 높아지면 2.1개로 낮아졌다.3. 엽폭은 파종량에 의해 영향을 받아서 파종량이 증가할수록 엽폭은 감소하였으며 (P<0.05), 엽신장은 파종량과 질소시비수준에 의해 유의성이 나타나지 않았고, 파종량이 낮을수록 엽신장은 약간 증가되는 경향만을 나타내었다. 4. 초장은 질소시비수준에 의해서는 영향을 받지 않았으나 파종량의 증가에 대하서는 유의성을 나타내어(P<0.05), 파종량이 높아질수록 초장은 깅어졌다.5.파종량이 낮고 질소시비량이높은 시험구가 조단백질 함량이 높게 나타났다.(P<0.05).질소시비효과가 커서 질소시비수준이 ha당 100,150,200kg으로 높아짐에 따라 19.3,20.2,및 21.4%로 조단백질 함량이 높아졌다. ADF와 NDF는 파종량과 질소시비수준에 따른 함량의 변화가 없었지만 MDF함량에서 파종량과 질소시비수준에 의한 상호작용만이 인정되었다. In vitro 건물소화솔은 파종량과 질소시비수준증가에 따라 높아지는 경향만을 나타냈다.6. 파종량이 120,160, 및 200kg/ha로 증가되면 건물수량도 ha당 3,197,3.583 및 3.713kg로 증가되었으나 질소시비수준에 따른 건물수량 증가는 그 효과가 인정되지 않았다.7. 조단백질수량은질소시비수준 증가에 의해서만 고도의 유의적 증가를 나타내어(P<0.01), 질소시비수준이 ha당 100,150,및 200kg일때 증가되었다.8. In virto 가상화건물수량은 파종량이나 질소시비량에 의하여 유의적으로 증가되지 않았다. 본 시험에서 얻어진 결과에 의하면 우리나라에서 청예리용을 위한 봄 연맥의 파종량은 연맥의 가을철 청예로서의 이용적 측면을 고려해 볼 때 ha 200kg 정도로 높여주고 질소시비수준은 ha당 100kg 정도가 적당하다고 생각된다.

• 한국초지조사료학회지
• /
• 제25권1호
• /
• pp.17-22
• /
• 2005

This experiment was conducted to investigate the effect of seeding dates and rates on the productivity and nutritive value of hairy vetch(Vicia villosa Roth) at experimental field of Grassland and Forage Crops Division, National Livestock Research Institute, RDA, Suwon from 1999 to 2000. The experimental design was consisted of split-plot design with three replications. The main plot was seeding dates(25 Aug., 15 Sep. and 5 Oct.) and the subplot was seeding rates(20, 30 and 40 kg/ha). Late seeding dates increased the plant height and delayed the flowering stage as 1 or 2 days. The dry matter(DM) content was decreased with low seeding rates, and the trend was same in the all plots. Average crude protein(CP) content was $24.1\%$ and increased with delayed seeding date and lower seeding rate. The content of acid detergent fiber(ADF) and neutral detergent fiber(NDF) was increased with higher seeding rate, but seeding date did not affect. In vitro dry matter digestibility(IVDMD) of hairy vetch tended to decrease with high seeding rate, and total digestible nutrient(TND) did not show significant difference among seeding rates. Average relative feed value(RFV) of hairy vetch showed 140 which means very high quality. Dry matter and CP yield was decreased with delayed seeding date. The results of this experiments indicated that seeding in middle-August with 40 kg/ha would be recommended to produce the highest yield and quality f3r the cultivation of hairy vetch in middle part of Korea

• 한국조경학회지
• /
• 제25권2호
• /
• pp.62-72
• /
• 1997

This study was conducted to find out the hydroseeding timing of several herbaceous plants for the slope revegetation works. Four native plants and five introduced grasses were used for this experiment and were seeded on the cut slopes by hands in April, May, June, September and October. To identify the best seeding timing, germination percentage, ground covering rate, number of tillers and plant heights were investigated. There were wide differences in germination and ground covering rates of native plants are lower than those of cool-season foreign grasses and they show different germination rates according to seeding timing. Among them, Arundinella hirta var. ciliata shows the most apparent germinatin pattern according to seeding timing. 2. Seeding timing : Native plants tend to germinate well in May and June and cool-season foreign grasses in May and September. But Native plants show extremely low germination rates in autumn, so it is necessary to adjust the seeding rates when seeding in autumn. When seeding in May, it will be possible to use native plants-seed-mixture without using introduced foreign grasses. In sum, the best seeding timing of cool-season foreign grasses are May and September, and warm-season foreign grass is May and June. The best seeding timing of native plants seem to be in May and June.

• 한국초지조사료학회지
• /
• 제20권1호
• /
• pp.49-54
• /
• 2000

A field experiment was carried out to determine the effects of seeding methods and rates on the growth characteristics, forage yield and nutritive value of sorghum X sudangrass hybrid (Sorghum bicolor (L.) Moench, cv. Pioneer 988) grown under application of animal manure in 1995. The application amount of animal manure were 40MT in cattle manure, 30MTha in swine and poultry manure. The methods and rates of seeding treated in this study were drill of 30kg, and broadcast of 30, 60 and 100kgha of seeding rates. The plant height was 180cm, 191cm and 204cm in cattle, swine and poultry manure, respectively. Plant height in the plot of drill was higher by about 15cm than those of broadcast plots. The dry matter(DM) yield was 7.73, 8.87 and 9.80MTha in cattle, swine and poultry manure, respectively. A significant higher forage yield was produced in the plot of drill, compared with broadcast(Pc0.05). DM yields in broadcast of 60kg and lOOkg of seeding rates were higher than that of 30kg of seeding rate of broadcast. However, no significant difference in forage yield was found between 60kg and IOOkg of seeding rates. The average DM yield was 11.16, 6.94, 8.26 and 8.83MTIha in drill(30kg), broadcast 30, 60 and 100kgIMT of seeding rates, respectively. The nutritive value of sorghum x sudangrass hybrid was very similar among treatments. The crude protein yields were 1,010kg in cattle manure, 1,180kg in swine manure, and 1,592kg in poultry manure. The protein yield was significantly high in the plot of drill. In conclusion, seeding by drill was recommended for forage production and protein yield of sorghumxsudangrass hybrid, and proper seeding rates were 30kg in drill and 60kg in broadcast. (Key words : Sorghumxsudangrass hybrid, Seeding rate, Seeding method, Forage yield, Nutritive value, Animal manure)

• 한국초지조사료학회지
• /
• 제36권4호
• /
• pp.340-343
• /
• 2016

The present study investigated the effects of different seeding rates on growth characteristics and seed productivity of the "Kowinearly" cultivar of Italian ryegrass (Lolium multiflorum Lam.) in paddy fields. Sowing Kowinearly in paddy fields under growing rice at the rates of 20, 30, 40, and 50 kg/ha resulted in seed yields of 1.57, 1.92, 2.06, and 2.09 ton/ha, respectively. Seed yield of Kowinearly was the highest at a seeding rate of 50 kg/ha (p<0.05), at which the cultivar was able to survive in winter and the weed ratio was low. Under these conditions, most growth characteristics such as winter survival (85%), weed ratio (10%), stems per square meter (1,006) were superior than those sown at other seeding rates (p<0.05). In addition, it has been reported that the economic efficiency of the 50 kg/ha seeding rate was higher than that of the other seeding rates.

• 한국작물학회지
• /
• 제37권6호
• /
• pp.514-520
• /
• 1992

건답휴립직파재배에서 파종양식(산파, 조파, 적파)과 파종량(4, 6, 8kg / 10a)에 따른 벼의 생육과 수량성에 미치는 영향을 알기 위하여 직파재배용으로 육성중인 밀양 9005를 1991년 5월 12일에 파종하여 얻은 결과를 요약하면 다음과 같다. 1. 최고분얼수는 산파와 조파에서 적파보다 많았다. 파종량간에는 산파와 조파에서는 파종량 6kg일 때 최고분얼수가 가장 많았으며, 적파에서는 파종량이 증가할수록 최고분얼수도 증가하였다. 2. 파종양식간에 입묘수, 간장, 수장, 유효경화율은 차이가 없었으나, 출수기는 적파와 조파보다 1일 지연되었다. 출수기의 엽면적지수와 건물중은 산파에서 다를 파종양식보다 높았으며, 투광율은 조파와 적파에서 산파보다 더 높았다. 파종량간에는 파종량이 증가할수록 입묘수는 증가했지만, 출수기, 출수기의 엽면적지수와 건물중, 간장, 유효경비율은 파종량간에 차이가 없었다. 3. 파종양식간에 지상부길이, bending moment 및 생체중은 차이가 없었고 좌석중은 산파>조파>적파 순으로 낮았다. 도복지수는 파종량간에 차이가 없었고, 도복도 발생하지 않았다. cellulose, hemicellulose, lignin 등 간기의 세포벽구성물질은 파종양식과 파종량간에 교호작용이 있었다. 4. 단위면적 수수와 영화수, 천립중, 수량과 수확지수는 파종양식간에 차이가 없었다. 수당 영화수는 적파에서 산파와 적파보다 다소 높았다. 파종량간에는 수수, 수당 및 단위면적당 영화수, 등숙율, 수확지수 등은 차이가 없었으나 수량은 6kg/10a 파종량에서 4 및 8kg /10a 파종량에서 보다 높았다.

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

• Asian-Australasian Journal of Animal Sciences
• /
• 제10권2호
• /
• pp.196-200
• /
• 1997

Glasshouse investigations were carried out to investigate the development and yield of Atylosia scarabeoides on soils of the northern guinea savanah zone of Nigeria. Seeds were sown at four rates 50, 75, 100 and 125 kg/ha. Single superphosphate (SSP) fertilizer was applied at sowing at four rates 0, 60, 90 and 120 kg/ha. Seeding (plant) population at one month and at harvest was significantly (p < 0.01) influenced by seeding rate but not fertilizer level. Fresh herbage yield was strongly (p < 0.01) dependent on fertilizer level, with the highest (not significant) dry matter yield at 90 kg SSP/ha. Seeding rate had no significant effects on herbage yield. The crude protein content of herbage rose with increase in fertilizer level although there were no significant differences between the various seeding and phosphorus rates. No significant interactions were observed between seeding rate and phosphorus lever. The yields were generally high, indicating good prospects for pasture development with A. scarabeoides in the zone, although field trials would be of benefit.

• 한국작물학회지
• /
• 제45권1호
• /
• pp.14-19
• /
• 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.