Effect of Hairy Vetch (Vicia villosa Roth) Sod Culture on Reducing Soil Loss and Providing Nitrogen for Chinese Cabbage in Highland

고랭지 배추 재배지에서 헤어리베치 초생재배에 의한 토양유실 경감 및 질소비료 공급효과

  • Received : 2005.07.25
  • Accepted : 2005.09.12
  • Published : 2005.10.30

Abstract

The effect of hairy vetch sod culture on reduction of soil loss and providing of nitrogen was investigated for the fields of Chinese cabbage in Hoenggye-Ri, Pyeongchang-Gun Gangwon-Do (780 m above sea level) from 2002 to 2003. Hairy vetch was sowed at just before planting, 15, 30 and 40 days after planting and right after harvest of Chinese cabbage. Hairy vetch was sod-cultivated with Chinese cabbage. The amount of sowing was $40kg\;10a^{-1}$. In this experiment, proper sowing times that had no influence on the yield of Chinese cabbage were 30 and 40 days after planting while other sowing times led to decrease the yield. In case of the former, there was 74% reduction effect of soil loss compared with no-hairy vetch because of covering the fields with hairy vetch right after harvest. Moreover, when the hairy vetch was put into the soil before planting of Chinese cabbage in the next year, it showed 61-79% substitution effect of standard application rate ($320kg\;ha^{-1}$, chemical fertilizer) for nitrogen fertilizer. It is suggested that using hairy vetch as cover crop would be useful in conservation of soil loss and reduction input of agricultural materials.

Keywords

Chinese cabbage;Crop canopy factor;Highland;Hairy vetch (Vicia villosa Roth);Soil loss

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