• Title/Summary/Keyword: Sown grasses

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Advanced Engineering in Processing of Leafstalk Biomass of Sown Grasses

  • Proydak, N.I.
    • Proceedings of the Korean Society for Agricultural Machinery Conference
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    • 1996.06c
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    • pp.711-714
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    • 1996
  • The energy saving base technological processes were substantiated and high efficient equipment for the wet fractionation of the leafstalk biomass of the annual and perennial sown grasses into the multipurpose products was designed.

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Studies on the Improvement of Moutainous Pasture II. Effect of existing vegetation on establishment and herbage production of oversown grasses in forest (산지초지 개량에 관한 연구 II. 임지의 선점식생이 겉뿌린 목초의 정착 및 수량에 미치는 영향)

  • 이인덕;윤익석
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.4 no.2
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    • pp.108-114
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    • 1983
  • This study was conducted to investigate the effects of existing vegetation on seedling establishment and herbage production of oversown grasses in the Pinus rigida forest. The dominant existing vegetations were Miscanthus sinensis, Festuca ovina, and Lycopodium serratum. In establishment year, seedling stands and herbage production were not affected in Miscanthus sinensis and Festuca ovina, while in Lycopodium serratum it was affected relatively seriously. The pattern of sown species response to the existing vegetations was trend to toward simplified two or three species as Dactylis glomerata, Lolium perenne, and Trifolium repens to advancing the time. Among sown species, Dactylis glomerata was a major dominant species in all existing vegetation area. The content of sown pasture grasses in the sward increased markedly, while the existing vegetations before seeding seriously decreased to advancing the cutting time. The above results shown that the improvement of forest pasture with a surface seeding was better in Miscanthus sinensis and Festuca ovina, but in Lycopodium serratum was found very difficult to improvement of pasture without surface treatment, also establishment method must favor the low herbage production potential.

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In Sacco Ruminal Degradation Characteristics of Chemical Components in Fresh Zoysia japonica and Miscanthus sinensis Growing in Japanese Native Pasture

  • Ogura, S.;Kosako, T.;Hayashi, Y.;Dohi, H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.14 no.1
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    • pp.41-47
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    • 2001
  • Ruminal degradation characteristics of dry matter (DM), neutral detergent fiber (NDF) and crude protein (CP) in fresh leaves of two Japanese native grasses (Zoysia japonica and Miscanthus sinensis) and one sown temperate grass (Dactylis glomerata) were investigated by an in sacco method in spring (mid-May), summer (mid-July) and autumn (mid-September). Japanese native grasses had higher NDF and lower CP concentrations than D. glomerata, and the CP concentration in native grasses decreased in autumn. Ruminal degradability of DM, NDF and CP was lower in native grasses than in D. glomerata (p<0.05) in all seasons. DM and NDF degradability decreased in summer for Z. japonica and D. glomerata, while it decreased in autumn for M. sinensis. CP degradability in Z. japonica was constant throughout the seasons, whereas that in M. sinensis greatly decreased in summer and autumn (p<0.05). It was concluded that Z. japonica could stably supply ruminally digestible nutrients for grazing animals in Japanese native pasture. However, the degradation characteristics of freshly chopped native grasses did not fit the exponential model of $D=a+b(1-e^{-ct})$ proposed by Ørskov and McDonald.

THE SCIENTIFIC BASIS OF THE PROCESS OF VEGETABLE JUICE SQUEEZINDG OUT OF LEAFSTALK BIOMASS

  • Proydak, N.I.
    • Proceedings of the Korean Society for Agricultural Machinery Conference
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    • 1996.06c
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    • pp.953-956
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    • 1996
  • The main regularities of the process of strain of the leafstalk boimass of the annual and parennial sown grasses (hard phase) with the simulataneous filtration of the vegetable juice (liquid phase) in the working members of the uninterrupted action(screw press) and the periodic action (Briqueting stamp press) were established . The engineering methods of calculation of the basic constructive -technological parameter of the pres equipment of the given types were worked out.

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Changes in the Productivity and the Percentage of Grasses Intake in Different Mixtures Grazed by Thoroughbred Horses (제주지역 말 방목 초지의 혼파조합별 생산성 및 채식율 변화)

  • Lee, Chong-Eon;Park, Nam-Geon;Park, Hyung-Soo;Oh, Woon-Yong;Ko, Moon-Suck;Kim, Dong-Hun;Kang, Dong-Hee
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.27 no.2
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    • pp.123-128
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    • 2007
  • A study was conducted over two years to determine the temperate mixtures of grasses for grazing horses in Jeju, Korea. The experiment field located at 450 m altitude (Jeju Horse Training Center of Korea Racing Association) was divided into 3 different mixtures plots (3 replications) without a fence between treatments, and sown by three main grasses (orchardgrass, perennial ryegrass and timothy). Seven castrated adult horses were kept on pasture from the middle of April to the end of November without supplementary concentrates. The dry matter yield, percentage of grasses intake and botanical composition were determined during the grazing period. Nutrients in grasses and soils were analyzed. The dry matter yield during two-year experimental period was not different among mixtures (11,000-12,000 kg/ha/year). In botanical composition, perennial ryegrass was dominant in all mixtures during spring through early summer season, but faded away during hot summer season. Timothy seemed to be more resistant against a hot or dry weather than other grasses. The percentage of grasses intakes was higher in the mixture of timothy than those in other mixtures. The contents of NDF (neutral detergent fiber) and ADF (acid detergent fiber) were not different among different mixtures. These results indicate that the mixture of timothy, orchardgrass, perennial ryegrass and white clover (20, 5, 5, 2 kg/ha as a seeding rate) can be used for gazing pasture of horses in the high altitude of Jeju.

Influence of Shading on the Productivity of Grasses and Legumes (목초의 생산성에 미치는 차광의 영향)

  • 최진용;홍광표
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.7 no.1
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    • pp.8-17
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    • 1987
  • Four foreign pasture cultivars such as Lotus corniculatus cv. Maitland, Trifolium pratense cv. Deben, Lolium perenne cv. $S_{23}$ and .Dactylis glomerata cv. $S_{26}$ were tested with "Kwisan" series, a common upland soil in Southern part of Korea. The cultivars in single or mixture were grown in pot with two levels of light intensity, i.e. a full sun light condition and 50% interception. Dry matter yield of top and root and their seasonal changes, the number of tillers or branches per plant and finally competative effects of mixtures were evaluated by estimating the expected yield, relative yield totals and compensation index. The results are summarized as follows: 1. Maitland showed a significant decrease in dry matter yield in shade condition, but the number of branches of Maitland was higher than those of Deben. 2. Maitland showed higher dry matter yield than Deben during the mid-summer period, while $S_{23}$, showed higher dry matter yield than $S_{26}$ during early season. 3. Mixtures of $S_{23}$ and Maitland, and $S_{26}$ and Deben gave better response to grasses by increasing the number of tillers in shade condition. 4. Combinations of Lotus corniculatus cv. Maitland and Dactylis glomerata cv. $S_{26}$ and Trifolium pratense cv. Deben and Dactylis glomerata cv. $S_{26}$ gave higher relative yield totals and higher compensation index, which envisages that the pasture establishment rates can be enhanced when those mixtures were sown by the oversowing method in the upland soil where phosphate level is very low and infertile in general.n general.

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Effects of Cover Crops and Sowing Methods on Weed Occurrences and Growth and Yield of Sorghum (Sorghum bicolor) (피복작물과 파종법에 따른 잡초발생과 수수의 생육 및 수량)

  • Jeon, Seung-Ho;Yun, Eul-Soo;Park, Chang-Young;Hwang, Jae-Bok;Jung, Ki-Youl;Choi, Young-Dae;Kim, Hyun-Ju;Shim, Sang-In
    • Korean Journal of Weed Science
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    • v.32 no.2
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    • pp.107-114
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    • 2012
  • This study was conducted to evaluate the weed suppressing effects of different cropping system including hairy vetch (Vicia villosa) and rye (Secale cereale) cover crops, polyethylene plastic film, and transplanting film mulching in direct sowing and transplanted sorghum field in 2011. Crop growth and development and weed occurrences in the fields were examined to know the efficiency of proposed cropping system. In polyethylene film mulching treatment, heading date of sorghum was earlier by 3 days than control, on the other hands, rye cover crop mulching delayed heading date by 11 days. Besides the effect of cover crop on the heading of sorghum, the residues changed growth characteristics. Plant height of sorghum was increased by 27.3% at hairy vetch treatment although it was reduced by 47.5% in the rye cover crop treatment. Hairy vetch treatment showed beneficial effects on sorghum growth reduced the occurrences of grasses and broadleaf weeds to 84% and 96%, respectively, as compared to control in sorghum fields. While rye cover crop treatment showed poor sorghum growth reduced less strongly grasses and broadleaf weeds by 35% and 71%, respectively. At harvest, yield of sorghum was greater in order of hairy vetch cover crop > polyethylene film mulching > rye cover crop ${\fallingdotseq}$ control in both transplanted and direct sown fields.

Studies on Hill Pasture Improvement by Hoof Cultivation I. Effect of sowing time on establishment, survival and dry matter yield of pasture species (제경법에 의한 산지초지개량에 관한 연구 I. 초지조성시가 목초의 정착과 잔존 및 건물수량에 미치는 영향)

  • 이효원;김동암;신재순
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.6 no.2
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    • pp.119-123
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    • 1986
  • In order to find out the effect of sowing time on establishment, survival and yield of pasture species when hoof and tooth cultivation was applied, this experiment was conducted from 1982 to 1984 at the comfound of Alpine Experiment Station. The results obtained are as follows: 1. Grasses establishment of 15 April, 15 May, 1 August and 30 August plots was 11.1%, 9.8%, 12.4% and 3.1%, resulting in 10% establishment in all plots except 30 August. The establishment of legumes in spring sowing was about 30%, showing significant difference (P < 0.05) than that of autumn sowing. 2. Botanical composition of sown pasture in all plots 2 years after sowing ranged from 66% to 80%. There was no significant difference between treatment in terms of DM Production 3 years after sowing although there was the difference in establishment and survival of sown pasture at the beginning of grassland establishment. It indicates that appropriate fertilization and grazing management after sowing play an important role in grassland improvement when hoof and tooth cultivation is applied. 3. The utilization of forages in plot 2 years after seeding was from 45 to 53%.

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Effects of Cover Crops and Sowing Methods on Weed Occurrences, Growth and Yield in Foxtail Millet Fields (파종방법과 피복작물이 조의 생육과 잡초발생에 미치는 영향)

  • Jeon, Seung-Ho;Shim, Doo-Bo;Kim, Seok-Hyeon;Chung, Jong-Il;Kim, Min-Chul;Chung, Jeong-Sung;Yoon, Seong-Tak;Shim, Sang In
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.57 no.4
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    • pp.337-342
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    • 2012
  • This study was conducted to evaluate the weed suppressing effects of different cropping system including hairy vetch and rye cover crops, polyethylene plastic film, and transplanting film mulching in direct sowing and transplanted foxtail millet field in 2011. Crop growth and development and weed occurrences in the fields were examined to know the efficiency of proposed cropping system. In polyethylene film mulching treatment, heading date of foxtail millet was earlier by 4 days than control, on the other hands, rye cover crop mulching delayed heading date by 8 days. Besides the effect of cover crop on the heading of foxtail millet, the residues changed growth characteristics. Plant height of foxtail millet was increased by 92.4% at hairy vetch treatment although the height of was reduced by 63.7% in the rye cover crop treatment. Hairy vetch treatment showed beneficial effects on foxtail millet growth reduced the occurrences of grasses and broadleaf weeds higher than 90%, as compared to control in foxtail millet fields. While rye cover crop treatment showed poor foxtail millet growth reduced less strongly grasses and broad-leaf weeds by 47% and 90%, respectively. At harvest, yield of foxtail millet was greater in order of hairy vetch cover crop > polyethylene film mulching > rye cover crop ${\fallingdotseq}$ control in both transplanted and direct sown fields.

Study on Dry Matter Yields and Persistence of Forage Plants Using Cattle Feedlot Manure in Fallow Paddy Land Located in the Mid-mountain Area (퇴구비를 시용한 중산간지 휴경답에서 초종별 영속성 및 건물생산성에 관한 연구)

  • Yoon, Sei-Hyung;Ji, Hee-Chung;Lee, Sang-Hoon;Choi, Eun-Min;Jeong, Min-Woong
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.30 no.4
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    • pp.317-324
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    • 2010
  • Recently, fallow paddy land located in the mid-mountain area (FPL) due to a decrease in rice consumption has increased in some regions of our country. So, grasses and forage crops available for years in once sowing should be introduced in FPL. This study was conducted to develop the technique for cultivation of grasses and forage crops using animal manure in FPL The field experiments were carried out from 2007 to 2009 on FPL at Kumsan, Chungbuk province in Korea. Cattle feedlot manure (CFM) was prepared by mixing feces and urine of cattle with rice straw in cattle feedlot for 6 months. The experimental plots were consisted of four treatments; tall fescue-based mixed pasture applied with chemical fertilizer (Control), mono-tall fescue pasture (MTFP), tall fescue-based mixed pasture (TFBMP), mono-Perennial ryegrass (MPR-FCM), mono-Italian ryegrass (MIR-FCM), mono-Red clover (MRC-FCM) and mono-Reed canarygrass (MRCG-FCM) applied with FCM. The field of tall fescue-based pasture had been sown with a grasses mixture containing 'Fawn' tall fescue, 'potomac' orchardgrass, 'Reveille' Perennial ryegrass, and 'kenblue' Kentuky bluegrass, 'Kenland' Red clover. Seeding rates were 16, 6, 4, 2 and $2\;ha^{-1}$, respectively. DM yields of forages and rates of grass coverage was higher in MTFP, TFBMP and MRCG-FCM as compated with control treatment. This result means that FPL has contained with favorable conditions for growing grass, because forage productivity is more than 15 tons per ha per year in fallow paddy land. In addition, the farmer can save the trouble of repeated plowing and sowing every year, due to the introduction of perennial grasses. The farmer must conduct the re-seeding and induce the improvement of management methods for the elevation of the persistence of red clover and perennial ryegrass, because both red clover and perennial ryegrass having high nutritive value and palatability was less persistent. Therefore, we suggest that FPL may be the good land for forage production utilizing FCM and FCM can be applied on FPL without any negative effects on DM production and the property of soil. FPL of Korea can be better utilized by applying FCM to the mono and/or mixed swards.