The Study on Double Cropping System for Organic Forage Production in Southern Region of Korea
2008
Yoon, S.H. (National Institute of Animal Science, RDA, Cheonan, Republic of Korea), E-mail: [email protected] | Kim, J.G. (National Institute of Animal Science, RDA, Cheonan, Republic of Korea) | Jeong, E.S. (National Institute of Animal Science, RDA, Cheonan, Republic of Korea) | Lim, Y.C. (National Institute of Animal Science, RDA, Cheonan, Republic of Korea)
This experiment was conducted to investigate the selection of regional double cropping system for production of organic forage in southern region of Korea. The species of forage crop used in this experiment were corn, sorghum × sudangrass hybrid and japanese millet for summer crops and rye and Italian ryegrass for winter crops. In organic cultivation condition, sorghum × sudangrass hybrid showed higher DM (dry matter) and TDN (total digestible nutrient) yield than that of corn. Dry matter yield of corn which cultivated in organic condition decreased to about 35% that of control because of weed. In winter crops, DM and TDN yield of rye is similar to that of Italian ryegrass. We could not find out the difference of nutrient value between each treatments. It means that the amount of nutrient is affected by DM productivity of each crop. The result of this study indicated that sorghum × sudangrass hybrid (summer crop) and rye (winter crop), sorghum × sudangrass hybrid (summer crop) and Italian ryegrass (winter crop) cropping system could be recommended as producing high yield of organic forage in southern region of Korea.
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