초록
이 실험은 녹비작물로 주로 이용되는 헤어리베치를 재배한 후 찰옥수수의 옥수수의 생육과 수량 특성을 알고자 실시하였다. 찰옥수수의 생육 특성은 관행재배에 비하여 헤어리베치를 녹비로 환원하고 질소시비량을 증가할수록 생육효과를 보였으며, LAI는 18 kg미만일 때 관행지배와 비슷하였다. 이삭 길이는 관행재배의 188 mm와 비교하여 헤어리베치를 녹비로 이용하고 질소시비량이 9 kg이하일 때 다소 감소하였으나 질소시비량이 18 kg 이상일 때 관행재배보다 길었다. 100립중은 헤어리베치와 27 kg의 질소시비량 처리가 35.4 g으로 가장 높았으며 헤어리베치와 0 kg의 질소시비량 처리가 27.4 g으로 가장 적었다. 수량은 헤어리베치와 9 kg의 질소시비량이 관행재배의 수량과 비슷하였으며, 당도는 관행재배에 비하여 헤어리베치와 18 kg 이상의 질소시비 처리에서 더 높았고, 과피 두께는 처리간에 차이를 볼 수 없었다.
This experiment was carried out to figure out the growth and yield of waxy corn after cultivating the hairy vetch which was mostly used as a green manure crop. The waxy corn showed the growth and yield efficiency relative to conventional culture after the hairy vetch was returned to as the green manure and the amount of nitrogen fertilizer increased, and the LAI was similar to the conventional culture when less than 18 kg. Length of ear slightly decreased compared to 188 mm of conventional culture when the hairy vetch was used as the green manure and the amount of nitrogen fertilizer was less than 9 kg, but the length of ear increased relative to the conventional culture when the amount of applied nitrogen fertilizer was more than 18 kg. The highest 100-kernel weight was 35.4 g with the hairy vetch and 27 kg of nitrogen fertilizer treatment. The lowest 100-kernel weight was 27.4 g with the hairy vetch and 0 kg of nitrogen fertilizer treatment. Quantity with the hairy vetch and 9 kg of the nitrogen fertilizer treatment was similar the conventional culture. Suger content with the hairy vetch and more than 18 kg of the nitrogen fertilizer treatment was higher than the conventional culture. Thickness of pericarp showed no difference among treatments.