• Title/Summary/Keyword: 하계작물

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The Effect of Liquid Pig Manure on Yield of Several Forage Crops and Soil Chemical Properties (돈분액비 시용이 동·하계 사료작물의 수량 및 토양의 화학적 특성에 미치는 영향)

  • Cho, Kwang-Min;Lee, Sang-Bok;Back, Nam-Hyun;Yang, Chang-Hyu;Shin, Pyung;Lee, Kyeong-Bo;Park, Ki-Hoon;Baek, Seung-Hwa
    • Korean Journal of Environmental Agriculture
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    • v.32 no.4
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    • pp.323-331
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    • 2013
  • BACKGROUND: Liquid pig manure(LPM) is a useful resource if it is sufficiently fermented and utilized in the agriculture; it provides nutrients to soils, circulates organic materials and replaces chemical fertilizers(CF) with reasonable costs. Currently, there are not many trials in paddy field to continuously cultivate the crops in winter and summer season using LPM. METHODS AND RESULTS: When cultivating winter forage crops (Whole-crop-barley(WCB), Rye, Triticale, Italian ryegrass(IRG)) and summer feed corns in the rice field, CF was treated with $N-P_2O_5-K_2O$(winter forage crops: 120-100-100kg/ha, summer feed corn: 200-150-150 kg/ha), and subsequently, growth, yields, feed values and chemical properties of soil were investigated. LPM-applied areas in both winter and summer forage crops showed higher plant lengths and tillers than those of CF-applied areas, but the yield in CF-applied areas was higher than that of LPM-applied areas under continuous application of 2 years. Crude protein, neutral detergent fiber(NDF), acid detergent fiber(ADF) and total digestion nutrient(TDN) in feed values showed almost similar results between LPM and CF-applied areas. EC, organic matter, available phosphate and exchangeable cations of soils after the experiment increased in LPM applied areas, and especially, the contents of available phosphate and exchangeable sodium were high. CONCLUSION(S): Considering the above results, it was concluded that if LPM are properly utilized for continuous winter and summer cultivation of feed crops at paddy field, the cultivation costs could be decreased and be helpful to the stable production of domestic feeds.

The Study on Double Cropping System for Organic Forage Production in Middle Part of Korea (중부지역에서 유기조사료 생산에 적합한 작부체계에 관한 연구)

  • Yoon, Sei-Hyung;Kim, Jong-Geun;Jeong, Eui-Soo;Sung, Si-Heung
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.27 no.4
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    • pp.275-280
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    • 2007
  • This experiment was conducted to investigate the selection of regional double cropping system for production of organic forage in middle part of Korea. The species of forage crop used in this experiment were corn, $sorghum\;{\times}\;sudangrass$ hybrid and japanese millet for summer crops and rye and Italian ryegrass for winter crops. $Sorghum\;{\times}\;sudangrass$ hybrid showed higher DM (dry matter) and TDN (total digestible nutrient) yield than that of corn. Dry matter yield of corn decreased to 56% that of control because of weed. In winter crops, DM and TDN yield of rye is higher than that of Italian ryegrass. Rye was more adequate to produce organic forage in middle part of Korea. We could not find out the difference of nutrient value between each treatments. It means that the amount of nutrient is affected by DM productivity of each crop. The result of this study indicated that $sorghum{\times}sudangrass$ hybrid (summer crop) and rye (winter crop) cropping system could be recommended as producing high yield of organic forage in middle part of Korea.