Changes in Quantity and Quality of Winter Cereal Crops for Forage at Different Growing Stages
2009
Song, T.H., National Institute of Crop Science, RDA, Iksan, Republic of Korea | Han, O.K., National Institute of Crop Science, RDA, Iksan, Republic of Korea | Yun, S.K., National Institute of Crop Science, RDA, Iksan, Republic of Korea | Park, T.I., National Institute of Crop Science, RDA, Iksan, Republic of Korea | Seo, J.H., National Institute of Crop Science, RDA, Iksan, Republic of Korea | Kim, K.H., National Institute of Crop Science, RDA, Iksan, Republic of Korea | Park, K.H., National Institute of Crop Science, RDA, Iksan, Republic of Korea
This study was to optimize the harvest time of several winter cereal forage crops. Barley, rye, oat, triticale and wheat were evaluated for the quantity and quality of hay and silage at four different harvesting stages, including heading, 10 days after heading (DAH), 20 DAH and 30 DAH. Barley and wheat harvested at 20 DAH, and oat and triticale at 30 DAH showed maximum dry matter yield. Crude protein content of barley, wheat, triticale and oat decreased significantly with advancing crop maturity. Mean crude protein content was the highest in rye and the lowest in oat. The NDF and ADF content of barley, wheat, triticale and oat decreased with late harvest, while rye increased. Maximum total digestible nutrients (TDN) content was recorded in barley and wheat harvested at 20 DAH, in triticale and oat at 30 DAH, and in rye at heading. The maximum TDN content of silage, 66.98%, was recorded in barley, followed by wheat, triticale, oat and rye. However, The crude protein, NDF and ADF of silage was 1 to 4 times higher than those of hay. In this study, barley harvested at 20~25 DAH, wheat and triticale at 30 DAH, and rye at heading provided a good compromise between dry matter yield and forage quality. At this stage, a sufficient quantity of fodder with moderate forage quality was obtained.
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