• Journal of Animal Science and Technology
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• v.48 no.1
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• pp.115-122
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• 2006

This experiment was conducted to evaluate the effect of tillage system and fertilizer type on the forage yield, quality, and production cost of winter rye. This experiment was a 2×2 factorial arrangement for two tillage system (Tillage and No-tillage) and two fertilizer type (Chemical and Manure compost). There was no difference in dry matter (DM) content, TDN (total digestible nutrients) yield, and CP (crude protein) yield of rye, but the DM yield was significantly higher for rye in tillage compared to the no-tillage system. The use of chemical fertilizer type also showed significant increase in DM, TDN and CP yields compared to the use of manure compost as fertilizer. The CP content for rye was significantly higher in no-tillage compared to tillage system, but the type of fertilizer used has no significant effect. No significant effects were observed for NDF (neutral detergent fiber), ADF (acid detergent fiber), and TDN in tillage system and fertilizer type of rye. The total cost to prepare 1 ha is lower in no-tillage compared to tillage, but production cost in rye per kg of fresh, DM and TDN were almost the same as tillage system because of lower forage production. The total cost to prepare 1 ha with the use of chemical fertilizer was higher than using manure compost as fertilizer, however, the cost to produce 1 kg of fresh, DM and TDN were lower when using chemical as fertilizer because of higher yield. Based on the results of this study, tillage system and fertilizer type affected forage yield more than forage quality. Production cost per 1 kg of tillage was lower compared to no-tillage, and that of chemical was lower than manure because of higher forage yield.

• Journal of The Korean Society of Grassland and Forage Science
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• v.25 no.2
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• pp.113-118
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• 2005

This experiment was conducted to compare the dry matter yields and fled values of winter forage crops using too cultivars of Barley, Rye md Italia ryegrass at the Dae-Ho reclaimed tideland, Korea from 2002 to 2004 2rowing season. Soil salt contents of three forage crops showed highest at sowing time, respectively and after wintering continuously lowed till harvest time. The dry matter yield was 6,668.8, 4,455.6 md 2,591.2 kg / ha, respectively, for Italian ryegrass, Barley and Rye. The highest Crude protein(CP) content was recorded in Italian ryegrass. Acid detergent fiber(ADF) contents were lowed in row with Barley, Italian ryegrass and Rye. Sodium contents in plant tissue were recorded high in line with Barley, Italian ryegrass and Rye. results mentions above suggest Italian ryegrass is suitable winter forage crops for cultivation on reclaimed tideland in view of the good emergence, forage production and its feed value.

• Korean Journal of Plant Resources
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• v.35 no.5
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• pp.659-666
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• 2022

The effect of rye B chromosome (rye B) on chromosome association was investigated in meiosis of wheat addition line. The wheat addition line was with one Leymus mollis chromosome and one L. racemosus chromosome which are under homoeologous relationship. Chromosome behavior of the two Leymus chromosomes in wheat genetic background was revealed by genomic in situ hybridization. In the first metaphase, most of the two Leymus chromosomes showed univalent in the wheat addition line without rye B (98.1 ± 0.5%). On the other hand, the wheat addition line with rye B showed higher frequency of bivalent (10.3 ± 0.2%) than wheat addition line without rye B (1.9 ± 0.5%). The wheat addition line without rye B showed abnormal bivalents with abnormal structure while the wheat addition line with rye B showed normal bivalent in low frequency. By rye B, some bivalent was composed of wheat and L. racemosus, and some trivalent was composed of wheat bivalents with L. mollis chromosome. Also, some wheat bivalents showed hyper-crossover, so those wheat bivalents showed abnormal structure compared to other wheat bivalents with normal structure such as ring, rod, and pan.

• Journal of The Korean Society of Grassland and Forage Science
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• v.43 no.1
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• pp.62-66
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• 2023

The objective of the present study was to evaluate the effect of storage type and period on the quality of rye hay. The rye "Gogu" was sown on October 15, 2020, and harvested on April 22, 2021 (heading stage). The rye hay was prepared in two wrapping conditions (wrapping and unwrapping) and two storage period (3 and 6 months). In regards to their visual appearance, the forage quality score was higher in wrapped rye hay than in unwrapped rye hay. In all groups, there was no difference in appearance between inside and outside. The moisture content of wrapped rye hay was maintained at the initial level until 6 months. However, the moisture content of unwrapped rye hay was increased at 3 months of storage, and then decreased at 6 months of storage. Crude protein content was higher in wrapped rye hay than in unwrapped rye hay, whereas NDF and ADF contents were lower within wrapped rye hay than within unwrapped rye hay (p<0.05). In conclusion, wrapping rye is effective method for long-term storage that reduces the effect of external environment.

• Proceedings of the Korean Society of Grassland Science Conference
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• 2002.09a
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• pp.36-36
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• 2002

• Proceedings of the Korean Society of Grassland Science Conference
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• 2001.06a
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• pp.108.2-109
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• 2001

• KOREAN JOURNAL OF CROP SCIENCE
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• v.38 no.5
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• pp.391-397
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• 1993

Rye(Secale cereale cv. Chunchu), barley(Hordeum vulgare cv. Dusan 29#), and italian ryegrass(Lolium multiflorum cv. Barmultra) were treated at 0, 0.1, 0.3, and 0.6 % of NaCl solution for 30 days. Plant height, leaf length, and leaf area were decreased with increasing NaCl level, and leaf area was decreased mainly due to decrease of leaf length. Root length was decreased at higher NaCl levels, but root number was increased. Shoot dry weight was decreased by increasing NaCl levels in rye and italian ryegrass, but barley did not show significant change. Dry weight of root was more decreased than that of shoot at higher NaCl levels. Chlorophyll content was decreased, but electric contuctivty of shoots and roots was increased at higher NaCl levels. Na+ content in shoot and root was increased with increasing NaCl level but the degree was not same. Reducing power of roots was that three crops as affected by NaCl was not equal. Barley was the most tolerant to NaCl stress.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.54 no.3
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• pp.327-331
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• 2009

Korean government has promoted the policy of chemical fertilizer reduction by 40% reduction from 2003 to 2013. Hairy vetch (Vicia villosa Roth) fixes nitrogen from the atmosphere and rye (Secale cerale L.) accumulates soil nitrogen to reduce potential nitrogen loss. The objective of this research was to identify optimum seeding rates of hairy vetch-rye mixtures in the central regions of Korea. The experiment of mixture rate was carried out for maximum production in 2006 and 2007. The best seeding rate mixture for maximum biomass production was 6.75 kg hairy vetch and 5 kg rye per 10a. Pure hairy vetch and rye were used as control. The nitrogen production of mixture treatments were higher than pure rye. The hairy vetch and rye mixture can scavenge potentially leachable nitrogen, while maintaining soil fertility by adding fixed nitrogen to the cropping system.

• Korean Journal of Environmental Agriculture
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• v.37 no.1
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• pp.28-33
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• 2018

BACKGROUND: In this study, we evaluated the effects of soil incorporation of hairy vetch (HV) or ryeas a green manure on the growth and yields of watermelon and soil nitrate nitrogen in a green house.. METHODS AND RESULTS: HV and rye were cultivated for 151 days after sowing on October 30th and incorporated into soil before transplanting watermelon. The amount of N added by soil incorporation of HV and rye were 79 kg/ha and 88 kg/ha, respectively. Five different N treatments for each of HV and rye were included as follows: green manure, green manure with urea at 25%, 50%or 75%, and 100% ureafor the N recommendation rate. The growth and fruit yield of watermelon were not different among the treatments of both HV and rye. Soil nitrate N content at both HV and rye treatments decreased continuously with the lapse of days after planting (DAP) and was lowest at 75 DAP: 44 mg/kg and 52 mg/kg the for the HV and rye treatment without urea, respectively. CONCLUSION: These results indicate that the N mineralized from the soil incorporated HV or rye accounts for an important portion of N available for the growth and fruit yield of watermelon. It can be suggested that the green manures, comparable to ureacould ensure the yield of watermelon, if soil nitrate N content isabove 40 mg/kg by soil incorporation of HV and rye during watermelon cultivation. However, further studies on the relationship between soil nitrate N content during cultivation periods and the fruit yield of watermelon are required.

• Korean Journal of Environmental Agriculture
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• v.26 no.4
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• pp.300-305
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• 2007

Soil erosion is one of the most serious problems in alpine upland in Korea. Soil fertility has continuously decreased due to serious soil erosion. To increase soil fertility, new sources of organic matter should be inputted. Therefore, the objectives of this research were to select winter cover crop as new sources of organic matter and to investigate the effect of winter cover crop on soil property changes, major crop productivity (Chinese cabbage, potato) production in highland, and disease occurrence with different cropping systems. Among 17 candidates for winter coverage crop, rye was most suitable due to it's soil covering rate, and over-wintering rate. The optimum sowing period for rye ranged from late August to late September. Soil porosity and organic matter content increased with rye cultivation. Rye cultivation during winter increased amounts of crop (both Chinese cabbage and potato) productivity up to 8%. There was little difference on amount of crop productivity depending on cropping systems such as monoculture (Chinese cabbage or potato) and Chinese cabbage-potato rotation.