Journal of Practical Agriculture & Fisheries Research (현장농수산연구지)

Korea National University of Agriculture and Fisheries (국립한국농수산대학교 교육개발센터)
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Effect of Application Time of Liquid Pig Manure on Growth and Nutrient Production of Green Manure Crops

돈분액비의 시용시기가 녹비작물의 생육과 양분생산에 미치는 영향

  • Kang, Se-Won (Department of Medicinal & Industrial Crops, Korea National College of Agriculture and Fisheries) ;
  • Chang, Kwang-Jin (Department of Medicinal & Industrial Crops, Korea National College of Agriculture and Fisheries) ;
  • Koo, Hyun-Jung (Department of Medicinal & Industrial Crops, Korea National College of Agriculture and Fisheries) ;
  • Choi, Jang-Nam (Department of Medicinal & Industrial Crops, Korea National College of Agriculture and Fisheries)
  • Published : 2016.08.30
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Abstract

In order to obtain the optimum application time of liquid pig manure (LPM) for growth and nutrient contents of green manure crops (GMCs), the growth and nutrient characteristics of GMCs were evaluated under different application times of LPM in pot experiment. GMCs were sown in Sept. 1, 2012. LPM was treated in soil surface at 15 days before sowing (15DBS), at 0 days after sowing (ASD) and at 25 days after sowing (25DAS). At 60 days after seeding, plant heights of barley and hairy vetch were higher in 15DBS treatment than those in other treatments. Biomass of barley was higher in the order of 15DBS (50.2g plant-1) > ASD (49.8g plant-1) > 25DAS (48.5g plant-1) > control treatment (37.5g plant-1). Biomass of hairy vetch in 15DBS treatment was higher than that in other treatments. Nutrient contents of barley and hairy vetch were not different regardless of LPM application times. On the other hand, the amounts of nutrients uptake in 15DBS treatment were higher than those in other treatments. Therefore, in considering growth status and nutrient contributions of GMC, the optimum application time of LPM was 15DBS.

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References

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