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Alfalfa 파종시 질소와 석회시용이 토양특성 , 잡초발생 , 사초수량 및 사료가치에 미치는 영향
이종경(Joung Kyong Lee),서성(Sung Seo),임윤환(Youn Whan Lim),박광진(Kwang Jin Park) 한국축산학회 1990 한국축산학회지 Vol.32 No.10
This experiment was carried out to determine the effects of nitrogen (0 and 80kg ha^-1) and lime application (0, 2 and 4 t ha^-1) at the seeding time on the soil properties, weeds development, dry matter(DM) yield and nutritive value in alfalfa(Medicago satiua L.) meadow, 1988 to 1989. Soil pH and nutrients on 6 months after adjustment with lime was increased with increasing level of lime. Percentage of weeds was decreased with increasing of N fertilization and lime application. Higher DM production and crude protein yield(CPY) of alfalfa were observed by N fertilization at the seeding time. Also the DM production, CPY, and is vitro digestible dry matter were increased significantly with higher lime application(p $lt;0.05). Based on the results, it is suggested that enough lime application at seeding time of alfalfa are more effective for forage production and nutritive value. Also N fetilization is desirable for alfalfa growth.
高冷地에서 Gramoxone 處理에 의한 티모시 優占草地의 更新 硏究
林潤煥 公州大學校 資源科學硏究所 1993 資源科學硏究論文集 Vol.1 No.-
This study was undertaken to evaluate the effect of different gramoxone spray rates and various spray/planting intervals on establishment of red clover(Trifolium L.), dry matter yield and botanical composition of grasses when seeded into sod of timothy(phleum pratense L.) Timothy sod sprayed 28 days prior to planting and no spraying reduced red clover establishment and seedling development as compared with planting 3 days after spraying and 400 or 800㎖ of spraying. In timothy sod, a spray/planning interval of the 3 days and 400㎖ of spraying was necessary to attain the many number off establishment.