KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)
- Volume 40 Issue 3
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- Pages.351-358
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- 1995
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- 0252-9777(pISSN)
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- 2287-8432(eISSN)
Possible Utilization of Panicum dichotomiflorum Michx. as a Forage Crop
야생초 미국개기장의 사료작물화 가능성
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Jong, Seung-Keun
(Department of Agronomy, College of Agriculture, Chungbuk National University) ;
- Cho, Dong-Sam (Department of Agronomy, College of Agriculture, Chungbuk National University)
- Published : 1995.06.01
Abstract
Since summer growth depression of forage crops limits hay production in Korea, it is important to exploit natural resources which are suitable as forage. In the preliminary experiment it was found that Panicum dichotomiflorum Michx. might be utilized as soiling and hay crop. Effects of seed stratificaion, planting date and number of harvestings on fresh and dry yields of Panicum dichotomiflorum Michx. were investigated in 1993 and 1994. Stratification of seed promoted emergence, while seed age decreased emergence. Although fresh yield was closely related with number of plants estabilished per unit area, effect of number of plants per unit area on yield was less at the later stage of growth. Higher cutting height decreased fresh and dry yield at th early stage, but final yields were not influenced by cutting height. Panicum dichotomiflorum Michx. could be harvested 3~4 times beginning 40~50 days after planting and fresh and dry yields were 9~10 tons /10a and 1.4~1.8 tons /10a, respectively. Fresh and dry yields were significantly influenced by growth duration or accumulated temperature between cuttings. Leaf blade ratio was higher at earlier planting and / or harvesting. Contens of crude protein, crude fat and crude ash were 16.32, 24.01 and 11.59%, respectively.
1. 노천이장한 경우 발아가 양호하여 단위면적당 입모수가 많았는데, 1992년산 무처리구의 187개/m