• Journal of The Korean Society of Grassland and Forage Science
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• v.7 no.1
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• pp.31-36
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• 1987

1. Dry matter intake was significantly increased above the 30% red clover plant composition (p<0.05) as compared with 100% orchardgrass plant composition. However, there was a significant positive correlation (p<0.05) between the content of CP and dry matter intake, and was a significant negative correlation (p<0.05) between the content of NDF and dry matter intake. 2. Dry matter digestibility was significantly increased with the increase of red clover plant composition as compared with 100% orchardgrass plant composition (p<0.05). Digestible dry matter intake was significantly increased above the 20% red clover plant composition (p<0.05) as compared with 100% orchardgrass plant composition. However, there was a significant positive correlation (p<0.05) between the content of CP and digestible dry matter intake, and was a significant negative correlation (p<0.01) between the content of NDF and digestible dry matter intake. 3. Preference of herbage samples tended to markedly increased with the increase of red clover plant composition.

• Journal of The Korean Society of Grassland and Forage Science
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• v.18 no.1
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• pp.19-26
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• 1998

The effects of different fertilizer management on herbage production and botanical composition were determined. Field experiments were conducted during 1991 - 1993 on sandy loam soil at Allgiu south western Germany under variabling fertilizer management; cattle slurry, NPK, PK chemical fertilizer management and zero fertilization. The dry matter yield of forage was the highest in the plot of mineral fertilizer and lowest in the plot of without fertilization. The dry matter yield of P-K application was higher by 1.2 ton than that of without fertilization. The content of crude protein, crude fibre, digestible dry matter yield, net energy and nitrogen content of plants was not significantly different among different fertilizer management. N uptake of plants was in the order NPK chemical fertilizer (347kg N/ha) > cattle slurry (337kg N/ha) > P-K chemical fertilizer (325kg N/ha) > without fertilization (3 15kg N/ha).

• Journal of The Korean Society of Grassland and Forage Science
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• v.18 no.2
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• pp.113-122
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• 1998

This experiment was conducted to establish the cultural method of triticale(Triticum Secalotriticum Saratoviense Meister) as a whole crop silage by evaluating the effect of seeding date and nitrogen fertilization rate on forage yields and feeding value. Heading date, flowering date, and the dough stage of development came significantly earlier as triticale was seeded earlier. Soilage, dry matter yields and percent dry matter significantly varied with seeding dates and crude ash, NFE and TDN. However, TDN yield was significantly reduced by delayed seeding. Macromineral contents were not affected by seeding date. Soilage, dry matter yield, and percent dry matter significantly increased as nitrogen fertilization rate increased. The contents of crude protein, crude fat, crude ash, NFE, TDN and TDN yield also significantly increased. In contrast, crude fiber content of triticale decreased with increasing N fertilization rate.

• Journal of The Korean Society of Grassland and Forage Science
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• v.12 no.1
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• pp.67-70
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• 1992

The experiment was conducted to evaluate the effect of the different seeding date on the dry matter yield and chemical composition of oat for forage. The crops wrc sccdcd on August 3l(lirst). Scptember IO(second). and September 20(third seeding date) and were taken on November 24, 1991. The results are summarized as follows : 1. The plant heights were 68, 54 and 40 cm at first, second, and third seeding date, respetively. 2. Dry matter (DM) content decreased with delaying seeding date from first to third seeding date. DM varied from 18.6 to 14.9 %. 3. Leaf weight ratio increased with delaying seeding date from first to third seeding date, varied from 51 to 67 %, but stems decreased from 49 to 33 %. 4. The dry matter yields per ha decreased with delaying seeding date: it was 5.670. 3.960 and 2.310kg at first, second and third seeding date. Significant differences has been obtained among date(P<. 05). 5. The content of crude protein increased with delaying seeding date from first to third seeding date. varied from 16.3 to 22.6%. but NDF and ADF content decreased.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.48 no.3
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• pp.276-280
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• 2003

To select the most suitable variety of forage rape for growth in the southern part of Korea, Seven introduced varieties were grown from Mar, 1999 to August 2000. Velox was shown to have the highest dry matter yield in comparison to other varieties used in this experiment. It showed relatively high content of crude protein and in virto dry matter digestibility (IVDMD) and low content of NDF, ADF, cellulose and lignin. Therefore, it was concluded that Velox was the most suitable variety with high yield and high nutrient quality for spring in the southern part of Korea. The heritabilities of all the observed characters were estimated to be high.

• Plant Resources
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• v.6 no.1
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• pp.11-15
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• 2003

To determine as optimal sowing time of forage rape in spring time in southern areas of Korea, forage rape cv. Velox, the highest yielding variety among introduced varieties of forage rape, was grown under five different sowing times. Yield components such as plant length, number of branches and number of leaves etc. were higher at the sowing time of Mar. 15 and Mar. 25. The plants sown at Mar. 15 and Mar. 25 also showed highest fresh and dry matter yield. When plants were grown under later sowing time, they showed higher values in content of crude protein and lower values in contents of crude fiber such as Neutral Detergent Fiber (NDF), Acid Detergent Fiber (ADF), cellulose and lignin. There was no relationship between variation of In Vitro Dry matter Digestibility (IVDMD) and sowing time. The plants sown at Mar. 15 and Mar. 25 showed highest digestible dry matter yields.

• Plant Resources
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• v.7 no.3
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• pp.170-173
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• 2004

To determine optimal plant density of forage rye in southern areas of Korea, forage rye cv. Paldanghomil, the highest yielding variety among experimental varieties of forage rye, was grown under five different plant density. Yield components such as plant height, and number of leaves were highest at the broad casting. Plants sown at broadcasting also showed highest fresh and dry matter yield. When plants were grown of the broad casting, they showed higher values in content of crude protein and lower values in contents of crude fiber such as neutral detergent fiber(NDF), acid detergent fiber(ADF), cellulose and lignin. There was no relationship between variation of in vitro dry matter digestibility(IVDMD) and plant density. Plants sown at the broad casting showed highest digestible dry matter yields.

• Journal of The Korean Society of Grassland and Forage Science
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• v.17 no.1
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• pp.35-42
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• 1997

Many farmers apply cattle slurry on grassland, often in excess of crop N requirements, resulting in groundwater contamination. Our research objective was the development of grassland management systems that reduce undesirable sideeffects on other compartment of the ecosystem. Field experiment was conducted during 1991~1993 on sandy loam soil at AllgZiu south western Germany. Different sets of conditions were tested such as : zero fertilization, reduced sluny application$(l20kg N ha^{-1}yr^{-1})$, intensive sluny application(conventional sluny application, $240kg N ha^{-1}yr^{-1}$). The plots of the reduced slurry application had no significant effect on dry matter yields, digestible dry matter and net energy of herbage. Dry matter yield of zero fertilization was significantly lower than that of usual slurry application, however the content of Ca and Mg in herbage tended to increase. We conclude that reduced sluny application can be applied on grassland without adverse effects on dry matter production and quality of herbage.

• Journal of The Korean Society of Grassland and Forage Science
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• v.39 no.1
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• pp.31-38
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• 2019

This study was carried out to investigate the growth characteristics, yield, and chemical compositions of winter forage crops cultivated after rice harvest in the central inland region. The experimental design was arranged in a randomized block design with three replications. The treatments consisted of 4 species (Rye, Oat, Triticale and Italian ryegrass), and varieties were "Marton", "Donghan", "Shinyoung" and "Kowinnearly", respectively. As a result, dry matter yield and TDN yield were higher in rye than in the other winter forage crops, and lowest in Oat(p<0.05). Crude protein and crude fat content were significantly higher in Italian ryegrass(p<0.05). However, Crude ash and ADF content did not show significant difference among winter forage crops. NDF content was higher in order of Rye > Triticale > Oat > Italian ryegrass(p<0.05). TDN and total amino acid content (EAA+NEAA) were higher in order of winter forage crop with high crude protein content (Italian ryegrass > Oat > Triticale > Rye). Total mineral content was higher in order of Rye > Triticale > Oat > Italian ryegrass(p<0.05), and total free sugar content was higher in order of Oat > Italian Ryegrass > Triticale > Rye(p<0.05). Compared with the results above, Italian ryegrass and Oat are high in crude protein, TDN, amino acid and free sugar content. Rye and Triticale have the merit that feed value is decreased but high yield(dry matter and TDN yield) can be maintained. Therefore, it is advantageous to grow Rye and Triticale as winter forage crops after rice harvest in the central inland region.

• Journal of The Korean Society of Grassland and Forage Science
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• v.17 no.1
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• pp.75-81
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• 1997

This study was wnducte to investigate the effects of treatment level and seasons of sluny hm bovine feces on the productivity of rye, N efficiency and improvement of soil fertility under the Korean climate condition. The results obtained fiom this study summarized as follows ; 1. The highest dry matter yield of rye was obtained in the partial fertilization of sluny in spring or autumn. There is no differences of dry matter yield between spring and autumn application. 2. With increasing the amount of slurry-N, the dry matter yield of rye was signigicantly increased up to 100Kg sluny Nha. As the level of slurry-N rises above about 100Kg N/ha, the maximal yield of dry matter was unchanged or declined. 3. As the level of sluny fertilization rises, the crude protein content of rye increases significantly. However the contents of crude protein was less affected by the application seasons. 4. The amount of nitrogen which produced 6om rye is dependent upon the level of slurry-N. The highest nitrogen yield of rye was obtained by the partial fertilization of sluny-N. 5. The season or amount of slurry treatments did not affect the organic matter content in soil. N-content in soil was the lowest by the partial fertilization of slurry in spring or autumn. However, N-content was increased with the higher level of sluny-N.