• Title/Summary/Keyword: 오차드그라스

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Effects of Seeding Times on the Growth Characteristics and Seed Productivity of Orchardgrass (Dactylis glomerata L.) (파종시기가 오차드그라스의 생육특성 및 종자생산에 미치는 영향)

  • 최기준;정의수;임용우;임영철;김기용;성병렬;김맹중;박근제
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.23 no.2
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    • pp.101-106
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    • 2003
  • This experiment was carried out to investigate the growth characteristics and seed productivities of orchardgrass "Hwabsung 2 ho" according to seeding times in the NLRI from 2001 to 2002. The experimental design was a randomized block arrangement with three replications. Seed was sown on 10th, 20th, and 30th of Aug. and 10th, 20th, and 30th of Sept. in 2000 and 2001, respectively. Establishment of seedling was worse in seeding of Aug. 10th because of rainfall. Number of panicles per $1\textrm{m}^2$ was numerous in seeding of Aug. 20th and was fewer according as seeding time was later. But panicle did not nearly appear in seeding after Sept. 20th. Seeding of Aug. 20th produced seed yield of 759kg/ha and have most seed yield components. But according as seeding times were later than Aug. 20th, the seed yield was linearly decreased with seed yield components worse.nts worse.

Effect of Mineral Content of Orchardgrass (Dactylis glomerata L.) on Mineral Balance of Goats (오차드그라스 (Dactylis glomerata L.) 의 무기함량차에 따른 산양의 무기질 출납에 관한 연구)

  • Sang Deog A. Kim;Mitsuaki Ohshima;Shigekata Yoshida
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.13 no.3
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    • pp.184-189
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    • 1993
  • Orchardgrass(Dactylis glomerata L.) hays, which had been harvested in different seasons and grown with different levels of potassium (K)fertilizer, were fed to foats in metabolic cages in order to know the effect forage mineral content on mineral balance of goats. The K contents of the feed were 3.4, 4.9 and 5.8% and magnesium (Mg) contents were 0.26, 0.21 and 0.21% on a det matter(DM) basis in K-low, K0medium and K-high treatments, respectively. Urinary K excretion was significantly more on K-high than on K-low treatment. Faecal and urinary Mg excrerions on K-low were higher than those on K-medium and K-high feeds. And there was a tendency of positive relation between urinary Mg excretion and serum Mg concentrarion. Goats on K-high treatment seemed to drink more water and excrete more urine than those on the other feeds.

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Effect of Species and Seed Mixture on Productivity, Botanical Composition and Forage Quality in Middle Mountainous Pasture (중부산간 초지에서 초종 및 혼파조합이 목초 수량, 식생 구성 및 사료가치에 미치는 영향)

  • Kim, Jong Geun;Li, Yu Wei;Kim, Meing Joong;Kim, Hak Jin;Jeong, Suk Im;Jung, Jeong Sung;Park, Hyung Soo
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.36 no.2
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    • pp.135-141
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    • 2016
  • This study amied to determine the effect of species and seed mixture on productivity, botanical composition and forage quality in middle mountainous region (Geosan) pasture. Total seven experimental pastures (T1 : Orchardgrass, T2 : Timothy, T3 : Tall fescue, T4 : Perennial ryegrass, T5 : Kentucky bluegrass, T6 : Timothy + Orchardgrass + Tall fescue + Alfalfa, T7 : Timothy + Orchardgrass + Kentucky bluegrass + White clover) were established in autumn, 2014 and evaluated for productivity and agronomic characteristics for 2015. Plant heigh was high in Orchardgrass and Perennial ryegrass pasture. Dry matter (DM) content was high in Kentucky bluegrass. Botanical composition in $1^{st}$ harvest was high in shrub, but the grass composition was high in $2^{nd}$ and $3^{rd}$ harvest. Fresh and DM yield were higher in Orchardgrass and Perennial ryegrass (p<0.05); whreras, Kentucky bluegrass was the lowest. In seed mixture pasture, yields of T6 plot (Tall fescue) were higher than those of T7 (Kentucky bluegrass). Average CP (crude protein) content of $2^{nd}$ and $3^{rd}$ cutting time was 16.91 and 14.79%, respectively and Kentucky blue grass was the highest in $3^{rd}$ cutting time by 17.57%. IVDMD (in vitro dry matter digestibility) showed low in $1^{st}$ cutting and Kentucky bluegrass was the lowest in every cutting time. TDN (total digestible nutrient) content was the highest in $3^{rd}$ cutting and the lowest in $1^{st}$ cutting. These results indicated that Orchardgrass, Perennial ryegrass and T6 are recommendable for productivity and Timothy, Perennial ryegrass and T7 are recommendable for forage quality.

Effect of Shading Degrees on Yields and Nutritive Values of Forage in Forest-Grassland (차광정도가 임간초지 혼파초지의 식생 및 목초생산성에 미치는 영향)

  • Kim, Won Ho;Kim, Hyun Seup;Park, Hyung-Su;Jung, Jeong Sung;Choi, Ki-Choon
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.37 no.4
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    • pp.283-289
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    • 2017
  • The present study was carried out to explore the potential effect of shading degrees on yields and nutritive values of forage in forest-grassland. This experiment was conducted this study under different natural shading at National Institute of Animal Science, Cheonan province in Korea, for 2 years (from 2015 to 2016). This experiment was consisted of four different shading degrees, such as full sunlight (control, 10% below), 25% of shading, 35% of shading, 50% of shading. Pasture species used in this study were orchardgrass 'Kodiwin', perenial ryegrass 'Linn', tall fescue 'Purumi', kentuky bluegrass 'Kenblue', and white clover 'Ladino'. Botanical composition of orchardgrass was higher than that of perenial ryegrass, tall fescue and kentuky bluegrass. Dry matter (DM) yields of forage decreased as increasing shading degrees. DM yields of forage significantly decreased as increasing shading degrees and lots of cutting times under increasing shading degrees decreased DM yields of forage. The content of crude protein increased as increasing shading degrees and the contents of acid detergent fiber (ADF), neutral detergent fiber (NDF), the activity of total digestible nutrient (TDN) and in-vitro digestibility (IVD), and relative feed value (RFV) were similar in control and different shading. This study suggests that orchardgrass is major component for forest-grassland and establishment of orchardgrass can be improved by increasing shading degrees.