보릿짚 시용이 콩의 생육 및 수량에 미치는 영향

Effects of Barley Straw Application on Growth and Yield in Soybean

맥류후작 콩 재배시 보릿짚의 시용효과를 구명하기 위하여 보릿짚 시용, 제거 및 소각에 따른 토양 이화학성 및 콩의 생육과 수량에 미치는 영향에 대하여 검토하였던 바를 요약하면 다음과 같다. 1.보릿짚을 시용한 토양의 유기물함량은 보릿짚 제거 및 소각보다 높았으며 수분을 등 물리성의 개선 효과 있었다. 2. 잡초발생은 보릿짚 제거에 비해 보릿짚 시용에서 44%, 소각에서 31% 억제되었다. 3. 근류수 및 근류 건물중은 보릿짚 시용에서 많았다. 4. 식물체 건물중은 보릿짚 시용에서 지상부는 파종 후 30일경까지는 보릿짚 제거에 비해 적었으나, 그 이후단계는 차이가 없었으며, 지하부는 전 생육기간 동안 보릿집 처리 방법에 따른 차이는 없었다. 5.수량은 보릿짚 처리방법에 따른 유의적인 차이는 없었다.

Barley straw is a good source of organic matter for next crop growth following barley. This study was conducted to investigate effects of barley straw application methods (application, removal, or incineration) on growth and yield in soybean cultivation following barley. A soybean variety, Eunhakong, was sown on 12 June with drill-seeder attached to tractor after tillage. Barley straw application resulted in increase in organic matter content compared to removal and incineration of barley straw, and soil physical properties such as water content and porosity, were improved by application and incineration of barley straw. Weed occurrence was deterred by 44% in barley straw application and by 31% in barley straw incineration compared with removal of barley straw. Number and dry weight of soybean nodules were move abundant in barley straw application than the other treatments at 4 and R2 stages. Barley straw application had less for dry weight than barley straw removal but greater than incineration of barley straw about 30 days after seeding. However barley straw application caused greater top dry weight 90 days after seeding. Root dry weight was not affected by barley straw application method at all growth stage. There're no significant differences in soybean yield among barley straw application methods.