• Title/Summary/Keyword: Cropping system

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Nutrient Value and Yield Response of Forage Crop Cultivated in Reclaimed Tidal Land Soil Using Anaerobic Liquid Fertilizer (간척지 토양에서 혐기소화액비 시용에 따른 사료작물의 생산성과 사료가치 평가)

  • Shin, Kook-Sik;Hwang, Won-Jae;Lee, Seung-Heon;Kim, Chang-Hyun;Yoon, Young-Man
    • Korean Journal of Organic Agriculture
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    • v.20 no.4
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    • pp.669-685
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    • 2012

  • This study was carried out to investigate the nutrient value and yield response of corn, barley, and sudangrass by the application of anaerobic liquid fertilizer in two tidal land soil in order to design the resource recycling agricultural system between livestock and forage crop cultivation in a environment friendly agricultural region. Forage crop yields at reclaimed tidal soil during were at the level of 64~76% comparing with forage crop yields at upland soil in the cropping system of corn, barley, and sudangrass. And yields of forage crops were in the order of barley > corn > sudangrass in the cultivated cropping system for 2 year. Relative feed values (RFVs) of forage crops were 88%~106% for corn, 90%~111% for barley, and 91%~113% for sudangrass, and the carrying capacity of beef cattle (Hanwoo) was 5.8~8.6 head/year/ha for the corn-barley cropping system of one year, and 4.8~6.7 head/year/ha for the barley-sudangrass cropping system of one year. Also, carrying capacity of beef cattle (Hanwoo) was highest in the application level of anaerobic liquid fertilizer 200%.

  • https://doi.org/10.11625/KJOA.2012.20.4.669 인용 PDF KSCI

Wheat-Rice Double Cropping System in Rice Fields of the Cheonan Area for the Production of Domestic Wheat (국산밀 생산을 위한 천안지역 논에서의 밀-벼 이모작 작부체계)

  • Kim, Young-Bok;Yang, jing;Yoon, Seong-Tak
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.64 no.3
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    • pp.234-245
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    • 2019

  • In order to select the best varieties and cultivation methods for the production of domestic wheat for Hodugwaja(a walnut shaped confection), we carried out a 3-year experiment (2015~2017) to investigate the effect of different factors (crop variety, planting date, nitrogen fertilization) in a double cropping system (wheat then rice) on crop yields in the Cheonan area. Rice is the second crop in the system, and requires an accumulated temperature for 40 days of about $840{\sim}930^{\circ}C$ to ensure ripening. Transplanting dates for rice between June 29 and July 6 were suitable; transplanting on or after July 13 does not ensure ripening. The daily hours of sunshine ranged from 6.3 to 6.5 hours, which were slightly higher than the optimum of 6.0 to 6.1 hours. The higher the nitrogen fertilizer treatment, the higher culm length, and spike length of wheat. The yield of wheat per 10a tended to increase as the amount of nitrogen fertilizer increased. Wheat yields were highest for the Sooan variety, followed by Goso, followed by Keumgang. The number of days from transplanting to heading of rice were shortest for the Jopyeong variety followed by Unkwang, followed by Haedam. The yield of milled rice per 10a increased as the transplanting date was earlier and the transplanting date of June 9 showed the average yield of more than 500 kg in three varieties. From the results of the experiment, we recommend the Goso wheat variety and the Haedam rice variety for growing in a double cropping system under the climatic conditions of the Cheonan area.

  • https://doi.org/10.7740/kjcs.2019.64.3.234 인용 PDF KSCI HTML

Influence of Rice-soybean Rotation on Soil Chemical Properties and Crop Growth in Silt Loam Soil (미사양토에서 벼-콩 윤작재배가 토양화학성과 작물생육에 미치는 영향)

  • Lee, Deog-Bae;Yang, Chang-Hyu;Ryu, Chul-Hyun;Lee, Kyeong-Bo;Kim, Byeong-Su
    • Korean Journal of Soil Science and Fertilizer
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    • v.39 no.4
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    • pp.209-213
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    • 2006

  • This study was carried out to investigate the changes in soil chemical properties and yields of crops by rice-soybean rotation cropping system at silt loam soil. There were 4 rotation cropping systems; continuous rice cultivation, annual, biennial and triennial rotation of soybean and rice. There were little change in pH, organic matter, $Ca^{2+}$ and $K^+$ contents with decrease in available phosphate content in the continuous rice cropping. The cropping system of soybean-rice caused to increase in available $P_2O_5$, $K^+$ and $Ca^{2+}$ in the soil after harvest. Content of $NH_4-N$ in the soil also increased after the rotation of soybean than the continuous rice cropping in the soil during the rice growth period. These chemical change in the soil caused to increase rice growth in number of the panicles and the spikelet per square meter. The yield of rice was increased by the rotation with soybean, and was gradually increased in the triennial rotation of soybean and rice. But the yield of soybean was decreased in continuous cultivation for two or three years in the paddy field. It was recommended for annual rotation to prevent the yield of soybean from decrease.

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