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한우 방목초지에서 목초 혼파조합이 식생구성과 수량에 미치는 영향
김맹중(Meng Jung Kim),조영무(Young Moo Cho),최순호(Sun Ho Choi),김영근(Young Gun Kim),윤세형(Sei Hyung Yoon),김종근(Jong Geun Kim),육완방(Wan Bang Yook) 한국초지조사료학회 2006 한국초지조사료학회지 Vol.26 No.2
This study was conducted to select the optimum seed mixture for beef cattle (Hanwoo) grazing in middle mountain area at 450m from sea level during 2 years from October 1, 1999. Seed mixtures were composed of four different treatment according to main species such as orchardgrass (T1), perennial ryegrass (T2), timothy (T3) and Italian ryegrass (T4). Grass composition rate of different seed mixtures was decreased mostly at first year of grazing, like 44.9% of orchardgrass in T1 plot, 27.6% of perennial ryegrass in T2 plot, 40.9% of timothy in T3 plot and 40.7% of Italian ryegrass in T4 plot, respectively. Main species in seed mixture were decreased in grazing pasture, but kentucky bluegrass and tall fescue were increased in all plots. Italian ryegrass in T4 plot was well grown in early growth stage and inhibited the growth of other grass species, and 44.2% of Italian ryegrass was maintained in second year in the grazing plot. Average dry matter yields of first year showed 6,673 ㎏/㏊ and second year was 10,177 ㎏/㏊. Average TDN yields of different seed mixtures were 6,399 ㎏/㏊ in T1, 7,769 ㎏/㏊ in T2, 4,883 ㎏/㏊ in T3 and 7,146 ㎏/㏊ in T4 plot. Average herbage dry matter intakes by different seed mixtures during 2 years were 5,937 ㎏/㏊ in T1, 6,375 ㎏/㏊ in T2, 4,925 ㎏/㏊ in T3 and 6,456 ㎏/㏊ in T4. This result indicated that perennial ryegrass would recommended in main species of Hanwoo grazing pasture.
초지 및 조사료 : 이탈리안 라이그라스 및 총체 벼 2모작 작부체계에 있어서 우분퇴비 시용이 사료작물의 생산성에 미치는 영향
정민웅 ( Min Woong Jung ),임영철 ( Young Chul Lim ),윤세형 ( Sei Hyung Yoon ),최기춘 ( Ki Choon Choi ),김맹중 ( Meng Jung Kim ),김원호 ( Won Ho Kim ),이기원 ( Ki Won Lee ),육완방 ( Wan Bang Yook ) 한국동물자원과학회(구 한국축산학회) 2011 한국축산학회지 Vol.53 No.5
This study was conducted to investigate the effects of application of composted cattle manure(CCM) on the productivity of the whole crop rice(WCR) and Italian ryegrass(IRG) on both Sancheong and Asan area from 2005 to 2008. Application levels of CCM such as chemical fertilizer(CF), CCM 150% and CCM 200% were tested in paddy field. Amount of CCM was adjusted equal to total nitrogen value relative to its value of CF. Mean dry matter yield(DMY) of WCR and IRG increased in order; CCM 200% > CF > CCM 150% in Asan and there was no significant difference between CCM 200% and CF. In Sancheong, DMYs of WCR and IRG significantly decreased(p<0.05) in order CF > CCM 200% > CCM 150%. The plant length and number of tiller of WCR were not different among treatments, however the percentage of ripeness of WCR was higher(p<0.05) in CF compared to CCM 150% and CCM 200%. Also, there were no differences in NDF and ADF contents, however CP content was higher(p<0.05) in CF treatment compared to CCM 150% and CCM 200%. Based on the results of this experiment, IRG-WCR double cropping system with application of CCM may be effective in producing the forage resources of 18~20 tons every year with eco-friendly way.
Festulolium braunii 교잡종의 재배특성, 사료가치 및 수량성
성병렬(Byung Ryeol Sung),김맹중(Meng Jung Kim),임근발(Keun Bal Lim),임용우(Yong Woo Rim),김기용(Ki yong Kim),최기준(Gi Jun Choi) 한국초지조사료학회 2006 한국초지조사료학회지 Vol.26 No.2
This experiment was carried out in order to examine the winterhardiness, heading date, fresh and dry matter yeild of Festulolium braunii, a hybrid of Festuca pratensis and Lolium multiflorum, which is newly introduced in Korea. This experiment was performed at National Livestock Research Institute in Suwon and Namwon from September 2004 to July 2005. The results are as follows. “Fleurial”, “Boxer”, and “Perun” showed stronger winterhardiness than “Hwasan 101”, which is one of the strongest in the winterhardiness hybrids. Therefore, we do not see there is any problem in winterhardiness when these hybrids are cultivated in Korea. The hybrids are turned out to be mid and late maturing hybrid. The average heading dates of the three hybrids were May 25 in Namwon and May 27 in Suwon. These dates are lower(1~3 days) than that of Hwasan 101. They showed 91~96 ㎝ in leaf length at 1st cutting times which are comparatively long. This experiment also disclosed that their lodging and regrowth are strong and excellent. We also found out that there are significant difference between regions and hybrids in the total fresh yield per ha. The average fresh yield of Suwon was 83,222 ㎏/㏊ and that of Namwon was 69,139 ㎏/㏊. We could not see any difference in the dry matter yield affected by region, however, there were significant difference in hybrids(p<0.05). The crude protein contents of the three hybrids indicated very high figures. the crude protein cotents of Perun, Fleurial and Boxer are 18.0%, 17.4% and 16.7% respectively. However the ADF (Acid Detergent Fiber) shows 28.1~29.2% which is less contents than 33.2% of Hwasan 101. We found out from this experiment that these three hybrids have excellent feed quality because the NDF (Neutral Detergent Fiber) is decreased by 7~3.8% comparing that the NDF of Hwasan 101 is 58.3%. Also each hybrids contains more crude fat by 1%, a little more chemical composition and less ash contents. Thus we can learn that chemical composition contents of these hybrids are also fittable.
비닐색이 라운드베일 목초 사일리지의 품질에 미치는 영향
김종근(Jong Geun Kim),정의수(Eui Soo Chung),서성(Sung Seo),김맹중(Meng Jung Kim),이종경(Joung Kyong Lee),김종덕(Jong Duk Kim) 한국초지조사료학회 2006 한국초지조사료학회지 Vol.26 No.3
This experiment was conducted to determine the effect of wrap color on the quality of round baled grass silage at experimental field of Grassland and Forage Crops Division, National Livestock Research Institute, RDA, Suwon from 1997 to 1998. The experiment was consist of randomized block design with three replications. The treatments were three wrap color(white, black and light green). Wrap color did not affect chemical composition. Fiber components(ADF and NDF) of all silages after 2 months were higher than those of forages at ensiling. Among tested wrap colors, white color wrap resulted in lower pH than others (P〈0.05) but, there was no significant difference between black and green color. Dry matter content of green color was the highest among warp colors, but there was no signifiant difference (P〈0.05). Acetic and butyric acid contents of all plots were not found significant difference among wrap color and wrap color did not influence lactic acid and organic acid concentration. The effect of wrap color on the quality grade and DM loss also were not found significant difference. Results of this study indicate that wrap color does not influence the quality of silage.
사료작물 재배지에서 초지식생대가 PO₄-P 및 토양유실 저감에 미치는 영향
조남철(Nam Chul Jo),윤세형(Sei Hyung Yoon),김기용(Ki-Young Kim),이기원(Ki-Won Lee),김맹중(Meng Jung Kim),육완방(Wan Bang Yook),정민웅(Min Woong Jung) 한국초지조사료학회 2010 한국초지조사료학회지 Vol.30 No.4
본 연구는 사료작물 재배지에 가축분뇨를 시용한 사료작물 재배지에서 초지식생대를 설치에 따른 PO₄-P와 토양 유실 저감 효과를 구명하기 위하여 수행되었다. 본 시험은 국립축산과학원 초지사료과 시험포장(천안)에서 경사가 약 10%에서 ±3%인 자연 경사지를 이용하여 2007년부터 2009년까지 3년간 수행하였다. 가축분뇨 시용은 화학비료, 우분퇴비 및 돈분퇴비를 시용하였으며, 초지식생대의 길이는 5m, 10m 및 15m의 길이로 설치하였다. 초지식생대 길이에 따른 유거수 중의 PO₄-P의 농도는 초지식생대의 길이가 길어질수록 줄어드는 경향을 보였다. 유거수 중의 평균 PO₄-P 농도는 초지식생대 0m인 지점에 비해 초지식생대의 길이가 10m 및 15 m 일 경우 PO₄-P의 농도가 유의적으로 감소하였으나(p<0.05), 초지식생대의 길이 10m와 15m 사이의 유실량의 유의적인 감소는 일어나지 않았다. 가축분뇨 시용에 따른 2008~2009년 평균 PO₄-P 농도는 화학비료 > 우분퇴비 > 돈분퇴비 순으로 높은 경향을 보였으나, 통계적인 유의성은 나타나지 않았다. 초지식생대 설치에 따른 2년 평균 토양 유실량은 길이가 5m, 10m, 15m로 길어질수록 감소하였으며, 5m 및 10m에 비해 15m 지점에서 유의적인 토양 유실량 감소를 가져왔다(p<0.05). 따라서 경사지에서 초지식생대의 설치는 가축분뇨를 시용한 사료작물 재배 시 강우로 유실되는 PO₄-P와 토양의 유실을 줄일 수 있을 것으로 사료된다. The performance of grass filter strips (GFS) in reducing PO₄-P concentrations and soil loss from the forage cropland was tested in an experiment on the 10% slope in Grassland and Forages Division, National Institute of Animal Science, Rural Development Administration (RDA) from October 2007 to September 2009. Forage cropland with rye-com double cropping system receiving inorganic fertilizer or livestock manure (LM) were compared in a natural condition. The plots were hydrologically isolated in a randomized block layout of 3 treatments × 2 factors × 3 replicates. Main plots consisted of the length of GFS, such as 25 ㎡ (5×5 m), 50㎡ (5×10 m), 75㎡ (5×15 m). Sub plots consisted of the type of LM, such as chemical fertilizer (CF), cattle manure (CM) and swine manure (SM). Concentrations of PO₄-P in surface runoff water were reduced as the length of GFS increased. Especially, GFS with 10 m and 15 m reduced PO₄-P concentrations significantly compared to that with 0 m (p<0.05). However, there was not significant different between PO₄-P concentrations of GFS with 10m and that of GFS with 15 m. Moreover, Soil loss in surface runoff water were reduced as the length of GFS increased. GFS with 15 m reduced soil loss significantly compared to that with 5 m and 10 m (p<0.05). The results from this study suggest GFS improve the removal and trapping PO₄-P and soil loss from forage cropland.
최기준(Gi Jun Choi),임영철(Young Chul Lim),김기용(Ki-Yong Kim),성병렬(Byung Ryeoul Sung),임용우(Yong Woo Rim),김맹중(Meng Jung Kim),임근발(Kim Keun Bal),서성(Sung Seo) 한국초지조사료학회 2006 한국초지조사료학회지 Vol.26 No.3
This experiment was carried out to breed the cold-tolerant variety of Italian ryegrass (Lolium multiflorum Lam.) in Grassland and Forage Crops Division, National Livestock Research Institute, RDA, Suwon from 1987 to 2005. New variety, Kowinner as a tetraploid variety was dark green in leaf color and growth ㏊bit in autumn and early spring was semi-prostrate and medium, respectively. Kowinner as a medium or late-heading variety was 19th May in heading date. Flag leaf length of Kowinner was 29 cm t㏊t was the same as control variety, Hwasan 101. Length of longest stem and plant length of Kowinner were 70 cm and 97 cm t㏊t was longer 3 cm t㏊n those of Hwasan 101, respectively. Stem width of Kowinner was thicker t㏊n t㏊t of Hwasan 101. Expecially, Kowinner was very good in regrowth. Cold tolerance of Kowinner was slightly weaker t㏊n t㏊t of Hwasan 101 and slightly stronger t㏊n t㏊t of Florida 80. Dry matter (DM) yield (12,884 ㎏/㏊) of Kowinner was 8% more t㏊n t㏊t of Hwasan 101. In vitro dry matter digestibility and total digestible nutrient (TDN) of Kowinner were 76.2 and 63.3% t㏊t was 1.6 and 0.4% lower t㏊n those of Hwasan 101, respectively.