Study on High Forage Production in Double Cropping Systems with Barley and Corn at paddy field in Middle Region
2012
Ju, J.I., Chungnam Provincial ARES, Yesan, Republic of Korea | Kang, Y.S., Chungnam Provincial ARES, Yesan, Republic of Korea | Seong, Y.G., Chungnam Provincial ARES, Yesan, Republic of Korea | Ji, H.C., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Lee, H.B., Chungnam National University, Daejeon, Republic of Korea
This experiment was carried out to determine the harvesting day after heading of barley for highest total forage yield in double cropping with corn at paddy field in middle region. The fresh barley yield was the highest at the harvest of 20 days after heading, but the dry matter yield and TDN yield were the highest at the harvest of 25 days after heading because of higher dry matter rate. The dry matter yield of corn after the harvest of 25 days after heading was decreased about 16 percent than that of the check, sowing on april 25. But total fresh yield of corn monoculture was lower about 31 percent, and decreased 28 percent of dry matter and 23 percent of TDN yield, respectively, than that of the double cropping system with corn and barley. In double cropping system at paddy field, the total forage yield was the highest at the harvest of 25 days after heading of barley and grew corn subsequently. Although yield of corn was reduced by late sowing, the total forage yield was increased by double cropping system compared with corn monoculture.
显示更多 [+] 显示较少 [-]