• 제목/요약/키워드: Rye

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풋거름작물의 토양환원이 수박의 생육 및 토양의 질산염 농도에 미치는 영향 (Effects of Incorporation of Green Manure Crops on the Growth of Watermelonand Soil Nitrate Nitrogen Concentration)

  • 임태준;박진면;이성은
    • 한국환경농학회지
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    • 제37권1호
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    • pp.28-33
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    • 2018
  • 수박 휴작기에 풋거름 작물로 헤어리베치와 호밀을 재배한 후 토양으로의 환원이 후작물 수박의 생육과 수량 그리고 토양의 질산태질소 함량에 미치는 영향을 구명하고자 하였다. 파종 후 151일간 재배한 후에 헤어리베치와 호밀의 토양 질소 환원량은 각각 79 kg/ha와 88 kg/ha였다. 헤어리베치와 호밀은 시설하우스 한 동씩 두 동의 면적에 풋거름 작물구, 풋거름작물에 요소 25%, 50%, 75% 처리구, 요소 100% 등 5처리를 각각 두었다. 수박의 생육은 각각의 헤어리베치 및 호밀 처리에서 동일한 생육을 나타냈고 수박의 수량에서도 처리간의 통계적인 유의성은 없었다. 토양의 질산태 질소함량은 수박 정식 후 재배일수가 증가할수록 지속적으로 감소하여 정식 후 75일째에 가장 낮은 함량을 나타내었는데 호밀처리구는 호밀만 투입만 처리가 52 mg/kg으로 가장 낮았고, 헤어리베치 처리간 비교에서도 마찬가지로 헤어리베치만 공급한 처리가 가장 낮은 44 mg/kg이었다. 헤어리베치와 호밀 등 녹비작물만의 투입으로도 수박의 재배기간 동안에 토양의 질산태 질소가 40 mg/kg 이상으로 존재하여 화학비료의 추가적인 시비 없이도 동일한 생육을 보인 것으로 판단되었다. 하지만 수박의 수량과 재배기간에의 토양 중 질산태질소와의 관계에 대한 추가적인 연구가 필요할 것으로 사료된다.

Effects of Maturity at Harvest and Wilting Days on Quality of Round Baled Rye Silage

  • Kim, J.G.;Chung, E.S.;Seo, S.;Ham, J.S.;Kang, W.S.;Kim, D.A.
    • Asian-Australasian Journal of Animal Sciences
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    • 제14권9호
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    • pp.1233-1237
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    • 2001
  • A study was conducted to determine the effects of maturity at harvest and wilting days on the quality of round baled rye (Secale cereale L.) silage. This study was a $3{\times}3$ factorial arrangement in a split plot design with 3 replicates. The main plot was 3 harvesting dates at the stage of boot (20 Apr.), heading (29 Apr.) and flowering (14 May). The subplot was wilting day : 0 (unwilted), 0.5 and 1 day (0, 1, and 2 days at boot stage). Acid detergent fiber (ADF) and neutral detergent fiber (NDF) contents of rye silage were significantly greater than those of rye before ensiling, but crude protein (CP) content and in vitro dry matter digestibility (IVDMD) were vice versa. Buffering capacity (BC) of rye harvested at flowering stage was decreased from 264 to 202 meq/kg at 1 day wilting, however, it was increased when harvested at boot or heading stage. The pH in wilted silage was the highest while that of flowering stage was the lowest. Water soluble carbohydrate (WSC) content of wilting rye was lower than that of unwilted, and the lowest at late harvesting stage. All plots had minimal WSC content for silage fermentation. Wilting treatment and delayed harvesting date caused an increase in dry matter (DM) content of round bale silage. The content of ammonia-N expressed as a portion of total N showed negative correlation with DM content. High quality silage according to ammonia-N content could be obtained from mid-harvest with wilting. There were highly significant differences in each organic acid between harvesting dates and wilting periods. Acetic and butyric acid contents were increased with delayed harvesting and prolonged wilting period, the lactic acid content, however, was decreased. This study demonstrated that harvest of rye from heading to flowering stage with wilting would be a recommendable method for making high quality rye silage using round bale system.

호밀 리빙멀치, 토양환원, 예취처리가 유기농 콩밭 잡초 발생에 미치는 영향 (Weed Occurrence as Influenced by Living Mulch, Soil Incorporation and Cutting Treatment of Rye in Organic Soybean Field)

  • 이병모;이지현;오영주;이상범;강충길;지형진;이종형
    • 한국잡초학회지
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    • 제30권2호
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    • pp.164-170
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    • 2010
  • 유기농 콩 재배에 가장 문제가 되는 잡초를 억제하기 위하여 호밀을 피복작물로 이용하여 콩을 재배하였다. 호밀의 이용방법에 따른 잡초 억제 효과를 보기 위하여 리빙멀치(living mulch), 토양 환원, 호밀 예취구를 두었고, 콩의 재식밀도와 호밀 파종밀도를 다르게 처리하여 잡초의 발생 양상을 비교하였다. 호밀을 리빙멀치로 이용한 처리구가 잡초의 발생과 생 육을 가장 효과적으로 억제하였다. 콩 파종 한달 후의 잡초 억제율은 리빙멀치구가 92.5%에 달하였으며 15일 예취구가 75.4%, 토양 환원구가 67.1%, 30일 예취구가 61.3%에 달하였다. 호밀의 파종 밀도에 따른 효과는 처리구간 차이가 미미하였으나 콩 생육 후기에는 호밀 2줄 파종이 호밀 1줄 파종보다 다소 우수하였다. 콩 재식거리에 따른 효과도 호밀 파종 밀도의 결과와 비슷하여 밀식과 소식간 차이가 인정되지 않았다.

휴경기간 녹비재배 농경지 토양에서 아산화질소 및 이산화탄소 배출특성 (Nitrous oxide and carbon dioxide efflux of cropland soil during fallow season)

  • 이선일;김건엽;최은정;이종식;정현철
    • 한국농림기상학회지
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    • 제20권4호
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    • pp.386-396
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    • 2018
  • 농경지는 농업부문에서 배출되는 온실가스인 아산화질소와 이산화탄소의 공급원이다. 하지만 대부분 농경지 온실가스 배출연구는 경작기에 집중되어 있고, 휴경기 동안 거의 수행되지 않았다. 따라서 본 연구는 동절기 휴경 농경지 $N_2O$$CO_2$ 배출량과 주요 환경요인과의 유의확률 및 경작기 배출량과 비교하였다. 휴경기동안 녹비작물로써 H.V.와 Rye를 재배하였을 때, $N_2O$$0.014{\sim}2.956mg\;N_2O\;m^{-2}{\cdot}d^{-1}$ 범위로 배출되었으며, 누적량은 대조구, H.V.처리구, Rye처리구에서 각각 104.4, 85.8 그리고 $85.0mg\;N_2O\;m^{-2}$ 배출되었다. 대조구에서 배출량이 가장 높았으며, H.V. 및 Rye 처리구는 비슷했다. 누적 이산화탄소 배출량은 대조구, H.V. 처리구, Rye 처리구에서 각각 293.1, 242.2 그리고 $275.2g\;CO_2\;m^{-2}$ 배출되었다. 그리고 휴경기간동안 $N_2O$$CO_2$ 일 평균배출량은 경작기의 각각 28.3%, 27.4% 배출되었다.

고랭지에 적합한 사료작물 2모작 작부체계에 관한 연구 (Effect of the Double Cropping at High Altitude Area Which was Cultivated Suitable Forage Crop)

  • 한성윤;김대진
    • 한국초지조사료학회지
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    • 제20권3호
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    • pp.147-154
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    • 2000
  • This study was conducted to increase the utility and productivity of forage crops at high altitued areas. For that purpose, 21 cultivars of corn and 2 cultivars of rye were cultivated for 3 years using a randomized block designed with 3 replications. The results obtained were as follows. 1. In the Taekwallyong area (800m above sea level) which has a short frostless period, all the seeding and harvest of corn must be finished within about 135 days between mid May, the time of the last frost, and late September, the time of the first frost 2. It was relatively safe for the early maturity cultivar(ll0days) and the medium maturity cultivar(l20days), compared to the late maturity cultivar(l30days) which might have had the possibility of an overlapping period between the time of harvest and the first frost in high altitude areas 3. The productivity of forage corn, which is the most efficient crop for capturing solar energy, varied significantly with the climate circumstances but the productivity of Taekwallyong showed similar results of 19 M/T/ha, compared with 20 M/T/ha in Suwon from the '96-'98 study 4. Rye could be cultivated in high altitude areas and when corn was raised as a second crop after rye in the same year, it was possible to increase the productivity of dry matter yield by 20% through double cropping(P < 0.05). (Key words : Cropping system, Corn, Rye, Forage production)

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Effect of Cover Crop Species and Liquid Manure Application Rate on Green Manure Production, Leaf Mineral Content, Fruit Quality and Soil Chemical Properties in Pear Orchard

  • Lee, Seong Eun;Park, Jin Myeon;Park, Young Eun;Choi, Dong Geun
    • 한국토양비료학회지
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    • 제47권6호
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    • pp.558-562
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    • 2014
  • Cover cropping and liquid manure application are considered as effective ways to replace the use of chemical fertilizer in orchard. This study was conducted to investigate the effect of cover crop species and liquid manure application rate on green manure production, leaf mineral content, fruit quality and soil chemical properties in pear orchard. The treatments include rye and hairy vetch as cover crops, two liquid manure application levels based on N and $K_2O$ requirement on each cover crop species, and chemical fertilizer as control. Green manure production was higher in hairy vetch than in rye. K content of pear leaves and soil exchangeable K content increased in N based liquid manure application treatments. The yield was higher in rye + liquid manure and fertilizer treatments, and fruit quality was not different between the treatments. Taking all of these into account, rye + $K_2O$ requirement-based liquid manure application is recommended in pear orchard for not only sufficient nutrient supply but also prevention of any problem related with soil $K_2O$ accumulation in pear orchard in long-term perspective.

Development of tetraploid rye (Secale cereale L.) cultivar in Korea

  • Ku, Ja Hwan;Han, Ouk Kyu;Ahn, Jong Woong;Kweon, Soon Jong
    • 한국작물학회:학술대회논문집
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    • 한국작물학회 2017년도 9th Asian Crop Science Association conference
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    • pp.75-75
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    • 2017
  • Rye is cultivated on about 30,000ha domestically for forage and green-manure production in Korea. 'Daegokgreen' has been developed as a good quality rye cultivar for forage and green-manure, which was doubled-chromosome by colchicine treatment of diploid rye cultivar 'Gogu' in 2010. By the colchicine treatment with 0.05% for 12 hours at $2^{nd}$ leaf stage of 'Gogu', 31 tetraploid plants were obtained and they produced 2,470 seeds with 135 spikes. There was 4.4 in the number of spikes per plant, 18.3 in grain number per spike, and 37.6 g in the1,000-grain weight. The heading date of 'Daegokgreen' was April 11, which was two days later on average compared with 'Gogu'. The biomass (fresh weight) of 'Daegokgreen' was 3,701kg, which was similar to 'Gogu'. The average crude protein content of 'Daegokgreen' was 8.9%, which was 1.0% point higher than 'Gogu'. 'Daegokgreen' was found to be strong resistant to winter-kill and can be adapted to before maize cultivation.

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녹비작물을 이용한 윤작이 잡초 제어에 미치는 영향 (Effect of Green-Manure Crop Rotation on Weed Control)

  • 이상민;이병모;이연;이용환;성좌경;윤홍배;최현석
    • 한국유기농업학회지
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    • 제20권2호
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    • pp.201-209
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    • 2012
  • 본 시험은 유기농업 파 및 고추재배를 위하여 호밀과 헤어리베치를 겨울에 윤작하여 잡초 발생량 억제에 미치는 효과를 검토하기 위하여 수행되었다. 파 재배구에서 호밀을 토양에 환원하지 않은 처리구에 비해 호밀을 환원하였을 경우 잡초발생량을 52% 경감시켰다. 고추 재배구에서는 그러한 효과가 뚜렷하게 관찰되지 않았다. 파 재배시 어저귀, 참방동사니, 바랭이와 같은 초종은 호밀뿌리 분비물에 의해 발아가 억제되는 경향이었으나 헤어리베치는 그러한 발생억제 효과가 크지 않았다. 파 재배시 호밀 환원은 잡초발생량을 경감시켰고 잡초의 종 다양성 지수를 증가시켰다.

호밀의 부속염색체에 관한 연구(IV) 한국산 호밀의 부속염색체의 출현빈도 (속보) (On accessory chromosomes in Secale cereale (IV) Further study on ferquency and geographical distribution of rye with accessory chromosomes in Korea)

  • 이웅직
    • Journal of Plant Biology
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    • 제11권2호
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    • pp.31-35
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    • 1968
  • Further study on the frequency and geographical distribution of rye with accessory chromosomes in Korea was carried out in 1996. All of the 15 populations of rye investigated were found to have accessory chromosomes and the frequencies of accessories were ranged from 15 to 54%. The study from 1963 to 1966 shows that the frequency of accessory ranging from 30 to 40% is predominant.

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호밀의 부속염색체의 유전 (ON ACCESSORY CHROMOSOMES IN SECALE CEREALE (II) The inheritance of accessory chromosomes in rye.)

  • 이웅직
    • Journal of Plant Biology
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    • 제9권1_2호
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    • pp.22-24
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    • 1966
  • 1. Number of accessory chromosomes in the progenies of rye which were obtained from mother plants having 2, 4, and 6 accessory chromosomes by open pollination were observed. The result was shown in the Table 1. 2. Cross between the plant with 14 ordinary chromosomes having chromsome breakage and normal plant with 14 ordinary chromosomes was carried out. A plant among the progeny of this cross was found to have two accessory chromosomes in addition to 14 ordinary chromosomes. This phenomenon may be useful to postulzte the possible origin of accessory chromosome in rye.

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