棚素施肥水準과 刈取管理가 Alfalfa(Medicago sativa L.)의 生育과 收量및 飼料價値에 미치는 영향 = Effect of Boron Application and Cutting Management on the Growth, Yield and Feeding Value of Alfalfa(Medicago sativa L.)

국문 초록 (Abstract)

本 實驗은 硼砂施肥水準과 刈取管理가 알팔파의 生育과 收量 및 飼料價値에 미치는 影響을 糾明하여 실질적인 栽培技術과 利用性提高를 目的으로 硼砂施肥水準(0,15,60Kg/ha)을 主區로 하고 生育段階를 細區로(Bud, 10% bloom, 100% bloom)하여 1989년 3월∼1990년 9월까지 建國大學校 自然科學大學 附屬 實習農場內 試料圃場에서 실시한 바, 그 結果를 要約하면 다음과 같다.
1. 草長에 있어서 硼砂施肥의 效果는 나타나지 않았으나, 初年度의 1, 2次 刈取와 2次 年度의 1次 刈取에서 生育이 진행됨에 따라 높게 나타났다.
2. 硼砂施肥에 따른 B??·B₁·B₂區의 收量에는 有意差가 없었으며, 生育이 진행됨에 따라 乾物收量은 높게 나타나 有意性이 (p<0.01, 0.05) 인정되었다.
3. 粗蛋白質 및 NDF, ADF 成分에 대한 硼砂 影響은 없었으며 生育이 진행됨에 따라 粗蛋白質含量은 떨어지고 NDF, ADF含量은 높아졌다.
4. 硼砂施肥에 의한 粗蛋白質收量은 有意差가 없었으며, 生育이 진행됨에 따라 粗蛋白質收量은 높게 나타나 그 有意性이 (p<0.05) 인정되었다.
5. 硼砂施肥에 따른 嗜好性은 B??·B₁·B₂區가 같은 傾向을 보였으며, 生育段階에 따른 嗜好性은 많은 차이를 보여 初年度의 1次 刈取時 Bud >10% bloom >100% bloom期 순으로 높게 나타났다.

다국어 초록 (Multilingual Abstract)

The purpose of the experiment was carried out to determine the effects of boron application and cutting management on the growth, yield and feeding value for the purpose of practical culture and utilization techniques.
The trial was performed at different borax application level(main treatments ; 0, 15, 30kg/ha) and growth stage(sub treatments : Bud, 10% bloom and 100% bloom stage) from 1989 to 1990 in experimental field college of Natural Science, Kon Kuk University.
The results obtained are summarized as follows :
1. The effect of borax application in the plant length was shown, but plant length in the first and second cutting time of the first year and first cutting time of the second year after sown was high by the progression of growth.
2. There was not significant among main treatments(B??·B₁·B₂)in dry matter
yield, but was shown significantly high (p<0.01, 0.05) by the progression of growth in first cutting time.
3. The content of chemical composition, NDF and ADF were not affected by boron
application, and content of crude protein was decreased and those of curde fiber, NDF and ADF were increased by the progression of growht in first cutting time.
4. There was not significant among main treatments(B??·B₁·B₂) in crude protein yield but was significant (p<0.05) by the progression of growth in first cutting time.
5. There was not significant among main treatments(B??·B₁·B₂) in palatability, but palatability by growth stage was the highest at bud stage in first cutting time of first year after sown.