Abstract
ABSTRACT In organic agriculture, cover crops are used for weed control. Cover crops inhibited weed germination or growth by allelopathy or shading effects. In this study, we used rye as cover crop to control weed in organic soybean field. The main treatment was rye using method such as living mulch, incorporating and mowing. Sub-treatment was rye planting density and soybean planting density. One month after soybean sowing, weed emergency and growth had been highly suppressed by rye in all treatments. Living mulch treatment was the best effective way to control the weed about 92%, and mowing treatment was the second about 75% compare to control. The weed control efficiency between rye planting densities was similar during one month. Soybean planting density treatment was same result as rye planting density. As a result of this experiment, we recommend rye as living mulch in one row planting. Key words: cover crop; living mulch; organic agriculture; rye; soybean; weed control. 서 언 피복작물은 토양의 유실과 유거수를 방지하고 수분보전, 투수성 개선, 토양 물리성 개량, 잡초억제 및녹비활용 등 다양한 목적과 효과를 위하여 오랫동안 이용되어 왔다(Andy 2007; Reddy 2003). 여러 종류의 피복작물 중 호밀은 내한성이 높고 건물 생산량이 많아 피복작물로 특히 많이 활용되어 왔
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