• Plant Resources
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• 제8권1호
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• pp.9-12
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• 2005

TO select the most suitable crop and variety of forage for productivity at the southern part of Korea, The crops of wheat, barley and rye were grown from Oct. 1999 to June 2000. Paldanghomil variety of rye crop was shown to have the highest productivity in comparison to other varieties of crops used in this experiment. It showed relatively high plant height, number of tiller, forage yield and dry matter yield. There fore, it was concluded that Paldanghomil of rye crop was the most suitable crop with high yield in the southern part of Korea. The heritabilities of all characters were estimated to be high.

• 한국초지조사료학회지
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• 제39권3호
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• pp.141-147
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• 2019

The purpose of this study was to determine the effect of waterlogging duration on the growth characteristics and productivity of forage corn at different growth stages under paddy field conditions. Treatments consisted of waterlogging at two growth stages (V7 or V14) for four waterlogging durations (no waterlogging, 48 hours, 72 hours, and 96 hours, respectively). The V14 growth stage was more vulnerable to waterlogging than the V7 stage. Among the waterlogging durations, the lodging score increased at 48 hours. The stem height of forage corn decreased with the increase in waterlogging duration at the different growth stages (V7 and V14). Increase in waterlogging duration reduced the stem dry matter yield, ear dry matter yield, and total dry matter yield at both growing stages (V7 and V14). The waterlogging treatments at the V14 stage affected ear dry matter yield more than those at the V7 growing stage. Thus, the management of forage corn under paddy field conditions must be strengthened during early (V7) and grain fill stages (V14). When waterlogging occurs, surface and subsurface drainage should be implemented within 48 hours to control (no waterlogging) the groundwater level and, thus, minimize economic losses due to forage corn damage.

• 한국초지조사료학회지
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• 제20권3호
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• pp.147-154
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• 2000

This study was conducted to increase the utility and productivity of forage crops at high altitued areas. For that purpose, 21 cultivars of corn and 2 cultivars of rye were cultivated for 3 years using a randomized block designed with 3 replications. The results obtained were as follows. 1. In the Taekwallyong area (800m above sea level) which has a short frostless period, all the seeding and harvest of corn must be finished within about 135 days between mid May, the time of the last frost, and late September, the time of the first frost 2. It was relatively safe for the early maturity cultivar(ll0days) and the medium maturity cultivar(l20days), compared to the late maturity cultivar(l30days) which might have had the possibility of an overlapping period between the time of harvest and the first frost in high altitude areas 3. The productivity of forage corn, which is the most efficient crop for capturing solar energy, varied significantly with the climate circumstances but the productivity of Taekwallyong showed similar results of 19 M/T/ha, compared with 20 M/T/ha in Suwon from the '96-'98 study 4. Rye could be cultivated in high altitude areas and when corn was raised as a second crop after rye in the same year, it was possible to increase the productivity of dry matter yield by 20% through double cropping(P < 0.05). (Key words : Cropping system, Corn, Rye, Forage production)

• 한국초지조사료학회지
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• 제39권4호
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• pp.195-206
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• 2019

본 연구는 사료용 옥수수 재배현장에서 재배환경과 재배기술의 현장적용 차이에 따른 조사료 생산성의 변화 요인을 분석하기 위하여 2017부터 2018년까지 수행되었다. 우리나라 중부 및 남부지역에서 34개 사료용 옥수수 재배지의 평균 건물수량은 13,510kg/ha이였다. 재배현장에서 사료용 옥수수의 생산성은 재배환경과는 상관이 거의 없고 재배기술과 고도의 상관(p<0.01)이 있는 것으로 나타났다. 재배기술 중에서 파종기술은 조사료 생산성과 고도의 상관이 있었으나, 시비기술은 조사료 생산성과 상관이 거의 없었다. 이상의 연구결과는 사료용 옥수수의 조사료 생산성 향상을 위해서는 재배환경도 중요하지만 재배기술을 적기에 적용하는 것이 더 중요함을 암시하고 있다. 따라서 우리나라 지역별 사료용 옥수수의 생산성 예측기술의 정밀도를 높이기 위해서는 그 지역의 기후환경 및 토양환경은 물론 재배기술의 현장실천 정도를 충분히 고려하여야 할 것으로 사료된다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.333-333
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• 2017

This study was conducted to establish of cropping system for year-round forage crops production in east-southern part of Korea and investigated their productivity and feed values. Cropping systems were tested in experiment using oat (cv. Highspeed and Darkhorse) in spring and autumn season, corn (cv. Kwangpyeongok) and sorghum (ss-450) in summer season and rye (cv. Gogu) and triticale (cv. Joseong) in winter season. Considering the forage productivity and feed value such as acid detergent fiber (ADF), neutral detergent fiber (NDF) and total digestive nutrients (TDN), this result suggest that three cropping system for year-round forage crops production. The combinations with triticale (winter), corn or sorghum (summer) and oat (autumn) were would be suitable ones. And also the combinations with rye (winter), corn or sorghum (summer) and oat (autumn) were would be suitable. If forage crops cultivation was started in spring season, the combinations with oat (spring), oat (autumn), triticale or rye (winter), corn or sorghum (summer) and oat (autumn) were would be appropriable. For the more suitable cropping system, we are proceeding on verification experiment of year-round forage crops.

• 한국초지조사료학회지
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• 제40권4호
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• pp.265-273
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• 2020

We aimed to predict the Italian ryegrass (IRG) productivity change of introduced and domestic varieties based on climate factors and identify suitable areas for IRG cultivation using the RCP 8.5 scenario. The minimum mean air temperature in January showed the highest correlation with productivity. The ratio of possible and low productivity areas was high in Gangwondo, and the ratio of suitable and best suitable areas was relatively high in the central and southern regions in the past 30 years. The change in the IRG cultivation area was found to be 26.9% in the best suitable area between 1981-2010 but increased significantly to 88.9% between 2090s. In the IRG suitability comparison classes between domestic and introduced cultivars, the ratio of suitable and best suitable areas was relatively high in the domestic varieties during the past 30 years. However, there is almost no difference between the IRG domestic and introduced varieties in the IRG suitability classes after the 2050s. These results can predict changes in the IRG suitability classes between domestic and introduced cultivars according to the climate change scenario, but there are limitations in accurately predicting the productivity of IRG because the results may vary depending on other environmental factors.

• 한국초지조사료학회지
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• 제17권2호
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• pp.150-156
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• 1997

This study was carried out to investigate the effects of herbicide treatment on the forage yield, nutrient productivity, weed control and persistency in the Rumex crispus dominated pasture in Suwon and in Youngam kom June, 1993 to October, 1995, respectively. It was arranged as a randomized block design with five treatments : 1. reseeding at middle August, 2. dicamba 2liter /ha+reseeding at early July, 3. dicamba 24liter ha+reseeding at middle August, 4.dicamba 2lliter /ha+reseeding at early July +dicamba 14 /ha and 5.dicamba 24liter /ha +reseeding at middle August +dicamba 1liter/ha. In the Rumex crispus dominated pasture, the treatments of dicamba 2liter ha+reseeding(early July or middle August)+dicarnba 1liter/ha were controlled 77-92% of the weed, and increased 105- 141% of forage yield and were higher 88-141% of energy (TDN and NEL) productivity compared with reseeding at middle August (control), respectively. The results indicated that herbicide treatment was effective for the control of Rumex crisps and renovation of grassland, and higher forage yield could be obtained by twice applications of dicamba.

• 한국초지조사료학회지
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• 제21권4호
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• pp.211-216
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• 2001

In an effort to investigate the germination and growth characteristics of tannin containing forage crops (such as chicory, birdsfoot trefoil, Lotus pedunculatus, sulla, lespedeza, crownvetch, sainfoin), germinativity, seedling vigor, and productivity were studied. Although the cumulative germination percentage (CGP) of chicory and birdsfoot trefoil was low, the germination rate(GR) and days to reach 50% of final germination(Gt50) were excellent. Crownvetch, lespedeza and sainfoin showed poor germination. Chicory seeds were light but the rate of emergence and establishment were high. Seeds of Lotus pedunculatus and birdsfoot trefoil were also small, but their rates of emergence and establishment were quite good. On the other hand, seeds of sainfoin and crownvetch were heavy but their emergence and establishment rate were very low. Lespedeza was the best in getting over the hot summer, and crownvetch also survived well during summer. Chicory was good in productivity and early growing but its persistence was not good. In case of birdsfoot trefoil and Lotus pedunculatus their early growing were slow but their productivity and persistence were fairly well. Lespedeza, crownvetch, and sainfoin showed poor growth in Korea. Based on the results of this study it can be concluded that chicory would be better to use as short term high productive forage crop, and Lotus pedunculatus and birdsfoot trefoil could be used as continuous functional forage crops in Korea. (Key words : Tannin. Germination. Chicory. Birdsfoot trefoil, Lotus pedunculatus)

• 한국초지조사료학회지
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• 제41권3호
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• pp.198-204
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• 2021

Intercropping cereals with legumes is known to improve forage production and crude protein yield. Sorghum × sudangrass hybrids (SSH) have excellent dry matter content and high cultivation temperatures. In this study, we investigated the growth characteristics, forage productivity, and feed value of intercropping SSH with different legumes in rice paddy fields. We used five treatments in this study SSH monocropping and four intercropping treatments of SSH with, lablab, cowpea, sesbania, and two cultivars of soybean (Chookdu 1 and 2). SSH plant height was not significantly different between the monocropping and intercropping treatments. However, the plant heights of lablab, cowpea, and sesbania were significantly higher than those of the two soybean cultivars. The total dry matter yield (kg/ha) was significantly higher in SSH monocropping than in intercropping; among the intercropping treatments, the one with SSH and Chookdu 2 yielded the highest total dry matter yield. The SSH feed value was significantly different between the monocropping and intercropping treatments, although there were no differences between the intercropping treatments. Among the intercropped legumes, lablab showed the highest neutral detergent fiber and acid detergent fiber contents, and cowpea had the highest crude protein content. These results reveal that intercropping SSH with legumes in paddy fields could be a promising cultivation technique to maintain stable forage productivity.

• 한국초지조사료학회지
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• 제39권1호
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• pp.17-23
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• 2019

본 연구는 5월 하순경 늦게 파종하여 재배한 사료용 옥수수의 품종별 생육특성과 생산성을 평가하고 생육특성에 따른 생산성 변화요인을 분석하기 위하여 2017년부터 2018년까지 우리나라 중부지역인 충남 천안에서 수행되었다. 2017년 5월 24일과 2018년 5월 25일 파종한 사료용 옥수수는 6월 5일과 6월 1일에 각각 출현하였다. 출사기는 품종에 따라 차이가 있었고(p<0.05), 대부분의 품종은 7월 22일~23일 경이었다. 간장은 광평옥 품종과 Nero IT 품종 간에는 차이가 있었으나 나머지 품종들 간에는 차이가 없었다. 줄기의 굵기는 품종에 따라 19~22mm 범위였으나 차이가 없었다. 옥수수 검은줄오갈병의 발생률은 모든 품종에서 3% 이하로 낮았다. 가소화양분(TDN) 수량은 품종 간 차이가 있었고(P<0.05), TDN 수량이 많은 품종은 P32P75, P2088, P31N27, 광평옥 순이었다. 가소화양분(TDN) 수량은 줄기 길이, 줄기 굵기 및 이삭수량과 고도의 정의상관이 있었다(p<0.01). 12개 사료용 옥수수 품종들의 평균 TDN 함량은 69.8%였다. 우리나라 중부지역에서 동계사료작물을 5월 중순에 수확을 완료하고 사료용 옥수수를 파종한다면, 만파적응성이 우수한 P32P75, P2088, P31N27, 광평옥 품종을 선택하여 재배하는 것이 양질 조사료 생산성 향상에 유리할 것으로 사료된다.