Silage 용 옥수수의 숙기별 부위별 수량 화학성분 및 가소화 양분 수량의 변화 = A Change of Dry Matter , Chemical Component and Digestible Dry Matter Yield of the Plant Parts with Growing Stage of Corn

다국어 초록 (Multilingual Abstract)

This study was conducted to estimate dry matter production, chemical component and digestible dry matter yield of corn with growing stage. Corn(var. suwon 19 and suwon 29) was harvested at milk, dough, yellow ripe and full ripe stage and devided into three parts of leaf, stalk and ear. Dry matter, crude protein, crude fibre and NFE contents of plant parts were measured at each growing stage. Dry matter yield peaked at yellow ripe stage. From milk to full ripe stage, leaf had more protein content than other plant parts. Nitrogen free exetracts(NFE) content was highly estimated in ear but low in leaf. Crude fibre content was highly estimated in stalk but low in ear. Crude protein yield per 10a was 93-102kg at milk stage in leaf and 90-94kg in ear at full ripe stage. While, most crude fibre was accumulated in stalk and leaf. NFE yield per 10a was superior to crude protein and crude fibre yield. Digestible dry matter yield per 10a peaked at yellow ripe stage on suwon 19(1353.3kg/10a) and at full ripe stage on suwon 29(1630.4kg/10a).