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Journal of The Korean Society of Grassland and Forage Science
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Journal DOI :
The Korean Society of Grassland and Forage Science
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Volume & Issues
Volume 32, Issue 4 - Dec 2012
Volume 32, Issue 3 - Sep 2012
Volume 32, Issue 2 - Jun 2012
Volume 32, Issue 1 - Mar 2012
Selecting the target year
`Joseong`, a New Early-Heading Forage Triticale Cultivar for Paddy Field of Double Cropping
Han, Ouk-Kyu ; Park, Tae-Il ; Park, Hyung-Ho ; Song, Tae-Hwa ; Ju, Jung-Il ; Jeung, Jae-Hyun ; Kang, Sung-Joo ; Kim, Dae-Ho ; Choi, Hong-Jib ; Park, Nam-Geon ; Kim, Kee-Jong ; Hwang, Jong-Jin ; Baek, Seong-Beum ; Kwon, Young-Up ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 3, 2012, Pages 193~202
DOI : 10.5333/KGFS.2012.32.3.193
`Joseong`, a winter forage triticale cultivar (X Triticosecale Wittmack), was developed by the breeding team at the Department of Rice and Winter Cereal Crop, NICS, RDA in 2010. The cultivar `Joseong` was selected from the cross FAHAD_5/RHINO1R.1D 5+10 5D`5B`//FAHAD_5 by CIMMYT (Mexico) in 1992. Subsequent generations were handled in pedigree selection program at Mexico from 1993 to 1998, and a line `CTSS92Y-A-4Y-0M-5Y-0B` was selected for earliness and good agronomic characteristics. After preliminary and advance yield test in Korea for 2 years, the line designated as a line name of `Iksan26`. The `Iksan26` was subsequently evaluated for earliness and forage yield in 7 different locations such as Jeju, Iksan, Cheongwon, Yesan, Naju, Daegu, and Jinju from 2008 to 2010 and finally named as `Joseong`. The cultivar `Joseong` has characteristics of dark green leaf, yellow culm and spike, and large grain of yellowish brown color. The heading date of cultivar `Joseong` was April 24, which was 5 days earlier than that of check cultivar `Shinyoung`. It showed better tolerance or resistance to lodging, wet injury, powdery mildew, and leaf rust than those of the check cultivar `Shinyoung`. The average forage dry matter yield of cultivar `Joseong` at milk-ripe stage was 14.5 MT
, which was lower than 16.5 MT
of the check cultivar `Shinyoung`. The silage quality of `Joseong` (5.3%) was lower to the check cultivar `Shinyoung` (6.0%) in crude protein content, while was 2.1% superior to the check cultivar `Shinyoung` (61.9%) in TDN (total digestible nutrients). It showed 5.1 MT
of grain yield, which was 40% higher than that of the check cultivar `Shinyoung` (3.65 MT
). This cultivar is recommended for fall sowing crop in the area where daily minimum mean temperatures are averaged higher than
in January, and as a winter crop using whole crop forage before planting rice in around Korea.
A New Single Cross Maize Hybrid for Grain and Silage, `Pyeongangok`
Son, Beom-Young ; Baek, Seong-Bum ; Kim, Jung-Tae ; Lee, Jin-Seok ; Hwang, Jong-Jin ; Kwon, Young-Up ; Ji, Hee-Jung ; Huh, Chang-Suk ; Park, Jong-Yeol ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 3, 2012, Pages 203~208
DOI : 10.5333/KGFS.2012.32.3.203
Pyeongangok, a new single cross variety, is an yellow dent maize hybrid (Zea mays L.) developed by the maize breeding team at the National Institute of Crop Science (NICS), RDA in 2011. This hybrid, which has a high yield of grain and dry matter, was produced by crossing two inbred lines, KS160 and KS155. KS160 is the seed parent and KS155 is the pollen parent of Pyeongangok. Silking date of Pyeongangok is 2 days earlier than that of check hybrid, Jangdaok, and equal to that of another check hybrid, Kwangpyeongok. Plant height of Pyeongangok is longer than that of Jangdaok and similar to that of Kwangpyeongok. Ear numbers per 100 plants of Pyeongangok is more than that of Jangdaok. Ear length of Pyeongangok is shorter than that of Jangdaok. 100 seeds weight of Pyeongangok is lighter than that of Jangdaok. Ear rate of Pyeongangok is lower than that of Kwangpyeongok. Stay-green of Pyeonganok is not greatly different with that of Kwangpyeongok. It has moderately resistance to southern corn leaf blight (Bipolaris maydis), black streaked dwarf virus (BSDV) and corn borer. It has strong resistance to northern corn leaf blight (Exserohilum turcicum). It has resistance to lodging. Pyeongangok was evaluated for the yields of grain and dry matter at four locations from 2009 to 2011. The yield of Pyeongangok in grain was 7.66 ton/ha. The yield of Pyeongangok in dry matter was 19.80 ton/ha. The yield of Pyeongangok in total digestible nutrient (TDN) was 13.32 ton/ha. Seed production of Pyeongangok has gone well due to a good match during crossing between the seed parent, KS160, and the pollen parent, KS155, in Yeongwol.
Effect of Seeding Dates on Yield and Quality of Various Oat Cultivars for Year-Around Forage Production
Han, Ouk-Kyu ; Park, Tae-Il ; Park, Hyung-Ho ; Song, Tae-Hwa ; Hwang, Jong-Jin ; Baek, Seong-Beum ; Kim, Dea-Wook ; Kwon, Young-Up ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 3, 2012, Pages 209~220
DOI : 10.5333/KGFS.2012.32.3.209
Most oats are used for livestock feed in the world. This experiment was conducted at Iksan city of Korea from 2007 to 2008. The objective of this study was to select eminent oat (Avena sativa L.) cultivars with high-yielding and a quality for forage adaptable in each planting seasons. Experimental design was split-plot design with three replications. A split plot design was used with seeding date on the main plots and other treatments fully randomized in sub-plots. A factorial arrangement of treatments included three different ecotypes cultivars, winter type (Sanmhan, Donghan and Chohan), summer type (High-speed, Darkhorse, and Swan), and naked oats near to spring type (Daeyang, Choyang, and Sunyang) and twelve seeding dates (twice a month from March to November). Plant height, dry matter yield, and percent TDN was significantly affected by seeding dates, cultivars, and the interaction of cultivars
seeding dates. There was a decrease in plant height, dry matter yield, and percent total digestible nutrients (TDN) as seeding was delayed from early March to late June and it also from early September to early November. The winter type oat cultivars such as Samhan, Donghan, and Chohan adapted to fall seeding and early summer harvest, while summer type cultivars such as High-speed, Darkhorse, and Swan showed high productivity either to summer seeding and mid-fall harvest or to spring seeding and early summer harvest. Naked type cultivars, Choyang and Daeyang, showed high forage yield by spring and summer seeding except for fall seeding because of cold damage. Summer type oat cultivars such as High-speed, Darkhorse, and Swan can supplement high forage production in spring. TDN yield showd the most at seeding in October 10 (780 kg
), followed at seeding in March 23 (627 kg
Nutritive Values and Quality of Sorghum-Sorghum Hybrid Bale and Trench Silage According to Those Parts
Choi, Ki-Choon ; Ryu, Jai-Hyunk ; Jung, Min-Woong ; Park, Hyung-Su ; Kim, Da-Hye ; Kim, Cheon-Man ; Kim, Mang-Jung ; Kim, Jong-Geun ; Kim, Won-Ho ; Lim, Young-Chul ; Choi, Gi-Jun ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 3, 2012, Pages 221~228
DOI : 10.5333/KGFS.2012.32.3.221
This study was performed to investigate the effects of various parts of sorghum-sorghum hybrid (SSH) silage on nutritive values and qualities of SSH round bale silage and trench silage. SSH "SS405" was harvested at heading stages and ensiled. Samples of SSH silage used in this study were collected in three different parts (outer, middle and inner). The contents of crude protein (CP) and neutral detergent fiber (NDF), and in vitro dry matter digestibility (IVDMD) in SSH round bale silage showed trends similar to SSH trench silage. However, the contents of acid detergent fiber (ADF) and total digestible nutrient (TDN) in SSH trench silage appeared slightly an increased trend, as compared to SSH round bale silage. The contents of CP in inner parts of both SSH round bale silage and trench silage were lower than those of Outer and middle parts (p<0.05). However, The contents of NDF, ADF and TDN, and IVDMD were not different between the parts of SSH silage. The content of lactic acid in SSH round bale silage was significantly decreased (p<0.05), as compared to SSH trench silage. The content of acetic acid appeared an decreased trends, but there is not significantly different between SSH round bale silage and trench silage. In addition, the contents of lactic acid, acetic acid and butyric acid were not different between the parts of SSH silage.
Agronomic Characteristics and Forage Productivity of Italian Ryegrass (Lolium multiflorum Lam.) Cutivar
Shin, Chung-Nam ; Ko, Ki-Hwan ; Kim, Jong-Duk ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 3, 2012, Pages 229~236
DOI : 10.5333/KGFS.2012.32.3.229
This experiment was conducted to evaluate agronomic characteristics and forage productivity of italian ryegrass cultivars at Seongju in the Kyeongbuk from 2010 to 2012. The experiment was arranged in randomized complete block design with three replications. Italian ryegrass cultivars were seeded on Oct. 12 in 2010 and Oct. 3 in 2011. The early-medium maturing cultivars were harvested on 29 Apr. and the medium late ones were harvested on 4 May in 2011. In 2012, the early-medium cultivars were harvested on 28 Apr. and medium late ones were harvested on 12 May. DM (dry matter) yield of the early-medium maturing cultivars `Yeonbong3`, `Seongnong`, `Winter Hawk`, `Pride` and `Kowinnearly` was 9,850, 9,778, 9,486, 9,363 and 9,267 kg/ha and DM yield of those were significantly higher (p<0.05) than other seven cultivars or ones. DM yield of the medium-late maturing cultivars `Tetragold`, `Hwasan 101`, `Jumbo`, `Sungrazer`, `Master`, `SelectIV` and `KB Royal` was 9,542, 9,492, 9,103, 8,981, 8,903, 8,870 and 8,681 kg/ha and DM yield of those were higher (p<0.05) than other three. Cold tolerance for `Hwasan 101` was higher than others, in medium-late maturing cultivars. According to the results obtained from this study, it is suggested that early-medium maturing cultivars would be recommendable for DM production.
Effects on Growth and Yield Whole-crop Barley by Soil-borne Virus Infection
Kim, Kyeong-Hoon ; Seo, Eun-Jo ; Shin, Sang-Hyun ; Choi, Jae-Seong ; Lee, Mi-Ja ; Park, Tae-Il ; Park, Jong-Chul ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 3, 2012, Pages 237~244
DOI : 10.5333/KGFS.2012.32.3.237
Barley yellow mosaic virus (BaYMV) and Barley mild mosaic virus (BaMMV) cause severe diseases in winter barley in Europe and East Asia. We investigated the effect of different level of resistance to virus disease on the plant growth and yield in whole-crop barley. In the virus infection, BaYMV was detected all tested cultivars in first diagnosis at 30th March. BaYMV infection was identified only in the susceptible Sunwoobori in 6th April, but not in the Yuyeon (moderate, M) and Youngyang (moderate resistant, MR) cultivars. Plant height was restrained about 14.6~32.9% in overwintered plant regeneration stage depending on the resistance of each cultivar. The tiller numbers also reduced to 8.7~19.7% by BaYMV infection in overwintering season. We evaluated culm length, spike length, and spike number in the virus-infected field and non-infected field. For the culm length, Youngyang (MR) reduced only 14.5% by BaYMV. However Sunwoo (susceptible, S) and Yuyeon (M) cultivars were decreased to 24.8~42.7%. The spike length and spike number also affected to 8.9~21.3% and 24.3~31.0%, respectively, depending on the resistance. After harvesting, dry-matter yield of whole crop yield reduced by approximately 21.6~58.0% according to cultivar resistant degrees. For example, Sunwoobori (S) decreased 58.0% in comparing to non-infected field. The grain yield was also significantly reduced in virus infected cultivars. Sunwoobori (S) was severely decrease more than 60.0%. Yuyeonbori (M) and Youngyangbori (MR) also decreased 30.0~47.5% by the viral infection comparing to those in the non-infected field.
Effects of Ensiling Method on Nutritive Values and Quality of Sorghum × Sorghum Hybrid (SSH) Silage in Different Locations of SSH Silage
Lim, Young-Chul ; Ryu, Jai-Hyunk ; Jung, Min-Woong ; Park, Hyung-Su ; Kim, Da-Hye ; Kim, Cheon-Man ; Kim, Jong-Geun ; Choi, Gi-Jun ; Kim, Won-Ho ; Choi, Ki-Choon ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 3, 2012, Pages 245~252
DOI : 10.5333/KGFS.2012.32.3.245
This study was carried out to investigate the effects of three different locations of Sorghum
sorghum hybrid (SSH) silage on nutritive values and qualities of SSH square bale silage (SSBS) and gunny bag silage (GBS). SSH "SS405" was sown at early May, harvested at heading stage and ensiled. Samples of SSH silage used in this study were collected in three different locations (outer, middle and inner). The content of crude protein (CP) in GBS showed a slightly decreased trend, as compared to SSBS. However, the contents of neutral detergent fiber (NDF) was significantly different between SSBS and SBS (p<0.05). However, The contents of CP, NDF, acid detergent fiber (ADF) and total digestible nutrient (TDN), and in vitro dry matter digestibility (IVDMD) were not different between the parts of SSH silage. Nutritive values of SSBS and SBS were not influenced by inoculation of lactic bacteria. The content of lactic acid in SSBS was decreased as compared to SBS, but there was no significant difference between SSBS and SBS. The content of acetic acid in SSBS was significantly decreased (p<0.05), as compared to SBS. In addition, the contents of lactic acid, acetic acid and butyric acid were not different between the parts of SSH silage. Therefore we suggest that nutritive values and quality of SSBS and SBS were not influenced by parts of sampling collected from these silages.
Effects of Harvest Stage on Agronomic Characteristics, Yield and Feed Value of Silage Corn in the Newly Reclaimed Hilly Land
Do, Gu-Ho ; Kim, Eun-Joong ; Lee, Sang-Moo ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 3, 2012, Pages 253~264
DOI : 10.5333/KGFS.2012.32.3.253
This study was carried out to investigate growth characteristics, yield, chemical compositions and nutrients yield of corn hybrids for silage in the newly reclaimed hilly land. The experimental design was arranged in a randomized block design with three replications. The seeding time was at May 6. The harvest time of four treatments was milk stage (97 days), dough stage (105 days), yellow stage (112 days) and late yellow stage (119 days after seeding). Plant height, ear height, leaf numbers and ear length were highest in yellow stage (p<0.05, 0.01), but dead leaf, stem hardness and sugar degree (Brix) were higher in late yellow than other treatments. Leaf width, tip filling degree and fresh yield were not significantly different. Dry matter yield increased as the maturity stage progressed (p<0.01). Crude protein and crude fat were not significantly different. NDF and ADF decreased as the maturity stage progressed (p<0.01). Ca content was the highest at milk stage (p<0.05), Fe and P were the highest at dough stage (p<0.05, 0.01). However another minerals were not significantly different. Essential amino acid (EAA), nonessential amino acid (NEAA) and total amino acid were highest at yellow stage, but no significant differences were found among the treatments. Total free sugar contents were higher in the order of Milk > dough > yellow > late yellow stage, but no significant differences were found among the treatments. Crude protein yield was the highest at yellow stage, but crude fat yield, amino acid yield and TDN yield were highest at late yellow stage (p<0.01). Total mineral yield showed no significant difference. Based on the above results, yellow and late yellow stage compared to other maturity stage have been shown to increase dry matter yield and nutrients yield, when silage corn grow cultivate in the newly reclaimed hilly land.
Effects of Ridging Times on Agronomic Characteristics, Yield and Feed Value of Corn Hybrid for Silage in Paddy Field Cultivation
Lee, Sang-Moo ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 3, 2012, Pages 265~274
DOI : 10.5333/KGFS.2012.32.3.265
This study was carried out to investigate the growth characteristics, yield and chemical compositions of corn hybrids for silage according to ridging times in the paddy field cultivation. The experimental design was arranged in a randomized block design with five treatments and three replication. The ridging times of five treatments were untreated (C), 7 leaves (T1: 31 days), 8 leaves (T2: 37 days), 9 leaves (T3: 42 days) and 10 leaves stage (T4: 48 days after sowing) of silage corn. The ridging treatments (T1, T2, T3, T4) were higher (p<0.01) dry matter yield and TDN yield than the unridging treatment (C). However, there were no significant differences among T1, T2, T3 and T4 treatments. The Crude protein content of unridging treatment was decreased (p<0.01), while NDF content was increased (p<0.01) compared to ridging treatments. The contents of mineral and amino acid in ridging treatments were higher than unridging treatment (p<0.05, p<0.01). In particular, mineral and amino acid contents were the highest in T4 and T1, respectively (p<0.01). Based on the above results, ridging work is to be increased the yield quantity and nutritional value of silage corn. And the best result was obtained in T4 treatment of ridging treatments.
Forage Productivity of Phragmites communis according to Harvest Management in Autumn
Seo, Sung ; Park, Jin-Gil ; Kim, Won-Ho ; Kim, Meing-Jooung ; Park, Hyung-Soo ; Choi, Ki-Choon ; Sung, Ha-Guyn ; Lee, Joung-Kyong ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 3, 2012, Pages 275~284
DOI : 10.5333/KGFS.2012.32.3.275
This study was carried out to determine the harvest management during autumn on the forage production, quality and regrowth of following year of Phragmites communis as native grass. Field experiments were conducted in Ansan and in Cheonan from 2010 to 2011. Forages were cut at 3 cm, 15 cm and 25 cm in height as compared to control (no harvest) in Ansan plots, and forages grown in Cheonan plots were cut at 10 cm and 20 cm in height with control (no harvest). The forages were harvested one time on Oct 7, 2011 in Ansan, and were harvested twice on July 7 and on October 7 in Cheonan. In Ansan, dry matter (DM) yield of control plot the following year were higher than those from harvested plots. In vitro digestible DM (IVDDM) yields, however, were the same: 1,236 kg/ha from control, 1,234 kg from 15 cm cut and 1,241 kg from 25 cm cut plots, except that lower IVDDM yield from 3 cm cut plot than these were observed. Forage quality of control plot was poorer than those of harvested ones. In vitro DM digestibility (IVDMD) and relative feed value (RFV) of control were 39.98% and 65.3, respectively as compared to harvested plots (42.36~46.40% IVDMD and 67.8~72.5 RFV). Yield and quality from Cheonan plots were similar to those from Ansan plots. Annual yield in DM and in CP from control plot were a little higher than those from harvested plots. However, there were no difference found in IVDDM yield between 20 cm cut (5,354 kg/ha) and control (5,178 kg). But IVDDM of 10 cm cut forages was less (4,531 kg). Forage quality scores were better from 20 cm cut, and 10 cm cut plot than control, in order (p<0.05). The quality grades were the 5th and 6th for forages from harvested plots and control plot, respectively. Regrown Phragmites communis from all Cheonan plots ranked the 4th in forage quality. More than 70% of annual yield was observed from the first grown forages. One time harvest per year was desirable for following regrowth and long time stable production of Phragmites communis. We recommended that Phragmites communis be harvested once for more forage yield with higher quality, and that optimum cutting height is 15~20 cm.
Study on High Forage Production in Double Cropping Systems with Barley and Corn at paddy field in Middle Region
Ju, Jung-Il ; Kang, Young-Sik ; Seong, Yeul-Gue ; Ji, Hee-Chung ; Lee, Hee-Bong ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 3, 2012, Pages 285~292
DOI : 10.5333/KGFS.2012.32.3.285
This experiment was carried out to determine the harvesting day after heading of barley for highest total forage yield in double cropping with corn at paddy field in middle region. The fresh barley yield was the highest at the harvest of 20 days after heading, but the dry matter yield and TDN yield were the highest at the harvest of 25 days after heading because of higher dry matter rate. The dry matter yield of corn after the harvest of 25 days after heading was decreased about 16 percent than that of the check, sowing on april 25. But total fresh yield of corn monoculture was lower about 31 percent, and decreased 28 percent of dry matter and 23 percent of TDN yield, respectively, than that of the double cropping system with corn and barley. In double cropping system at paddy field, the total forage yield was the highest at the harvest of 25 days after heading of barley and grew corn subsequently. Although yield of corn was reduced by late sowing, the total forage yield was increased by double cropping system compared with corn monoculture.
Effect of Heading and BMR types on the Agronomic Characteristics, Forage Yield and Quality of Sorghum × Sudangrass Hybrid
Kim, Jong-Duk ; Ko, Ki-Hwan ; Kwon, Chan-Ho ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 3, 2012, Pages 293~300
DOI : 10.5333/KGFS.2012.32.3.293
This experiment was carried out to compare the agronomic characteristics, forage yield and quality of sorghum
sudangrass hybrid at two locations (Sungju and Cheonan) in 2009. The experiment was a randomized complete block design with three replications. The eight recommended hybrids used in this experiment were `Sordan 79`, `SX17`, `Honey chew`, `Honey grazer`, `G7`, `Jumbo`, `Green star` and `GT56` hybrids. The heading of four hybrids were headed at both region, Sungju and Cheonan. There are no big differences in general agronomic characteristics among hybrids, but brix scale of heading and BMR (brown mid rib) types were higher than those of other hybrids. Dry matter (DM) and plant height of heading type hybrids were higher than those of headless types. The fresh, DM and TDN (total digestible nutrients) yields of heading type hybrids were also higher than those of headless types, and BMR types were lower than others. The crude protein and crude ash contents of headless hybrids were higher than those of heading hybrids, while its non-fiber carbohydrate (NFC) content showed the opposite results. The acid detergent fiber (ADF) and NFC contents of BMR types were lower than others. The results of this experiment indicates that heading hybrids were more higher than headless hybrids in the agronomics and forage yield of sorghum
sudangrass. However heading types were lower headless types in quality of sorghum
sudangrass. And BMR hybrids were also high quality of sorghum
sudangrass hybrid because of higher brix content and lower ADF content among tested hybrids.
Evaluation of the quality of Italian Ryegrass Silages by Near Infrared Spectroscopy
Park, Hyung-Soo ; Lee, Sang-Hoon ; Choi, Ki-Choon ; Lim, Young-Chul ; Kim, Jong-Gun ; Jo, Kyu-Chea ; Choi, Gi-Jun ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 3, 2012, Pages 301~308
DOI : 10.5333/KGFS.2012.32.3.301
Near infrared reflectance spectroscopy (NIRS) has become increasingly used as a rapid and accurate method of evaluating some chemical compositions in forages. This study was carried out to explore the accuracy of near infrared spectroscopy (NIRS) for the prediction of chemical parameters of Italian ryegrass silages. A population of 267 Italian ryegrass silages representing a wide range in chemical parameters and fermentative characteristics was used in this investigation. Samples of silage were scanned at 2 nm intervals over the wavelength range 680~2,500 nm and the optical data recorded as log 1/Reflectance (log 1/R) and scanned in intact fresh condition. The spectral data were regressed against a range of chemical parameters using partial least squares (PLS) multivariate analysis in conjunction with spectral math treatments to reduced the effect of extraneous noise. The optimum calibrations were selected on the basis of the highest coefficients of determination in cross validation (
) and the lowest standard error of cross validation (SECV). The results of this study showed that NIRS predicted the chemical parameters with very high degree of accuracy. The
and SECV were 0.98 (SECV 1.27%) for moisture, 0.88 (SECV 1.26%) for ADF, 0.84 (SECV 2.0%), 0.93 (SECV 0.96%) for CP and 0.78 (SECV 0.56), 0.81 (SECV 0.31%), 0.88 (SECV 1.26%) and 0.82 (SECV 4.46) for pH, lactic acid, TDN and RFV on a dry matter (%), respectively. Results of this experiment showed the possibility of NIRS method to predict the chemical composition and fermentation quality of Italian ryegrass silages as routine analysis method in feeding value evaluation and for farmer advice.
Effect of Cropping System and Application of Cattle Slurry on Forage Production and Environmental Pollution in Paddy Land
Choi, Ki-Choon ; Na, Sang-Pil ; Kim, Won-Ho ; Choi, Gi-Jun ; Kim, Young-Chul ; Kim, Myeong-Hwa ; Lee, Sang-Lak ; Kim, Da-Hye ; Yook, Wan-Bang ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 3, 2012, Pages 309~316
DOI : 10.5333/KGFS.2012.32.3.309
This study was performed to investigate the effects of forage cropping system and cattle slurry on productivity of whole crop rice, whole crop barley and Sorghum-Sudangrass hybrid and environmental pollution in paddy land. Forage cropping system used in this study was consisted of double-cropping whole crop barley followed by whole crop rice applied with cattle slurry (DWBRC) and double-cropping whole crop barley followed by Sorghum-Sudangrass hybrid applied with cattle slurry (DSSBC). The field experiments were conducted on the clay loam at Backsanmyun, Kimje, Chunlabukdo province in Korea for three years (May 2006 to Apr. 2009). This study was arranged in completely randomized design with three replicates. The field had been sown with whole crop rice `Nampyung`, Sorghum-Sudangrass hybrid `Sordan79` and whole crop barley `Younyang`. The yields of whole crop barley in DWBRC and DSSBC were 7,515 kg/ha and 8,515 kg/ha, respectively. The yields of whole crop barley in DSSBC significantly increased as compared with that of DWBRC (p<0.05). The contents of crude protein, neutral detergent fiber (NDF), acid detergent fiber (ADF), total digestible nutrient (TDN) of whole crop barley in DWBRC were not difference as compared with those of DSSBC. The pH, and contents of total nitrogen and organic matter in soil samples collected at the end of the experiment increased as compared with those at the beginning of the experiment (p<0.05). However, The content of phosphate in DWBRC was no difference as compared with DSSBC. In addition, after the end of experiment, the concentrations of exchangeable cations (Ca, Na, Mg and K) in soil samples collected at the end of the experiment were remarkably higher than those at the beginning of the experiment (p<0.05). The concentrations of
-P, Cl, Ca, K, Mg and Na in leaching water were hardly influenced by the cropping system and application of cattle slurry.