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燐酸 施用量 差異과 麥門冬의 生育 및 收量에 미치는 影響
趙南棋,宋昌吉,朴良門,玄京卓 濟州大學校亞熱帶農業硏究所 1996 亞熱帶農業硏究 Vol.13 No.-
SummaryFive phosphate (P2O5) rates (0, 10, 15, 20 and 25kg/10a) was investigated for their effects on growth and tuberous root yield of Liriope platyphylla Wang et Tang grown in a volcanic ash-soil. The results obtained were summarized as the follows;Plant height, leaf length and no. of tuberous roots per plant were increased with increasing phosphate from 0 to 25kg/10a. Leaf weight, root weight, wt. of tuberous roots, fresh weight and dry wt. of tuberous roots on a plant basis were greatest at 25kg phosphate per 10a, and were decreased with decreasing phosphate rate. The phosphate rate did not significantly affect length, width, and SPAD reading of leaves. Results indicate that the optimum phosphate rate for Liriope platyphylla Wang et Tang would be above 25kg(/10a) in volcanic ash soils of Cheju province.
栽植密度가 靑刈 大豆의 主要 形質 ·收量 및 飼料價値에 미치는 影響
趙南棋,宋昌吉,高東煥,玄京卓 濟州大學校亞熱帶農業硏究所 1997 亞熱帶農業硏究 Vol.14 No.-
本 硏究는 濟州道에 있어서 栽植密度가 濟州在來大豆와 남해콩의 主要形質과 飼料價値에 미치는 影響을 究明하기 위하여 栽植密度를 5×5cm, 10×10cm, 15×15cm, 20×20cm, 25×25cm, 30×30cm로 處理하여 試驗한 結果를 要約하면 다음과 같다. 1. 草長 變化에 있어서 濟州在來大豆는 15×15cm區와 10×10cm區에서 各各 119, 113cm로 길었으며, 남해콩은 5×5츠區와 10×10cm區에서 各各 103, 100cm로 긴 편이었다. 2. 莖直徑, 分枝數, 葉數, 莖重, 葉重 等의 形質은 濟州在來大豆와 남해콩 두 品種 공히 栽植密度가 낮아짐에 따라 漸次的으로 優勢하였다. 3. 生草收量에 있어서 濟州在來大豆는 5×5cm區에서 3493kg/10a, 남해콩은 2868kg/10a로 가장 많았으나, 栽植密度가 낮아짐에 따라 漸次的으로 減少되어 30×30cm區에서 濟州在來大豆는 1155kg/10a (Y^**=51.739X^2-832.29X+4270.5), 남해콩은 1067kg/10a이었다 (Y^**=41.416X^2-638.36X+3426.9). 4. 乾草收量은 5×5cm區에서 濟州在來大豆는 772kg/10a, 남해콩은 728kg/10a로 가장 많았으나, 栽植距離가 길어짐에 따라 漸次的으로 減少되어 30×30cm區에서 濟州在來大豆는 275kg/10a(Y^**=8.0179X^2-157.55X+928.4), 남해콩은 255kg/10a으로 減少되었다(Y^**=7.8857X^2-155.05X+891.76). 5. 組蛋白質과 粗灰分은 密植區에서 濟州在來大豆와 남해콩 모두 많은 편이었으나 栽植密度가 낮아질수록 減少되었으며, 粗脂肪과 組纖維는 栽植密度가 높을수록 많아지는 傾向이었다. 6. 10a當 生草收量에서 濟州在來大豆는 10a當 乾草收量, 粗蛋白質, 粗灰分과 正의 相關을 나타내었고, 남해콩은 草長, 10a當 乾草收量, 粗蛋白質, 可溶性無窒素物과 正의 相關을 나타내었다. This study was conducted to determine influence of planting density on main growth characters, yield and feeding value of Cheju native soybean and Namhaekong in Cheju-Do. The results are summarized as follows ; 1. Plant height of Cheju native soybean were longest at 15×15cm and 10×10cm treatments (119cm, 113cm) and that of Namhaekong were longest at 5×5cm and 10×10cm treatments(103cm, 100cm). 2. For both Cheju native soybean and Namhaekong stem diameter number of branches, number of leaves, stem weight and leaf weight were increased with decreasing planting density. 3. Fresh forage yield per 10a, for Cheju native soybean was greatest(3,493kg) at 5×5cm treatment and for Namhaekong was greatest(2,868kg) at 5×5cm treatment, each fresh forage yield per 10a of Cheju native soybean and Namhaekong were increased with increasing planting density. Fresh forage yield per 10a of Cheju native soybean was smallest(1,158kg) at 30×30cm treatment and that of Namhaekong was smallest(1,067kg) at 30×30cm treatment. 4. Dry forage yield per 10a of Cheju native soybean and Hamhaekong was greatest (772kg, 728kg) at 5×5cm treatment, respectively, dry forage yield was gradually reduced as planting density decreased ; Cheju native soybean produced dry forage yield of 275kg per 10a at 30×30cm treatment, and Namhaekong produced that of 255kg per 10a at 30×30cm treatment. 5. Crude protein and crude ash of both Cheju native soybean and Namhaekong were greater in the dense treatments. However, they were reduced with the decreased planting density. Crude fat and crude fiber were increased as the planting density decreased. 6. Cheju native soybean showed positive correlation between fresh forage yield per 10a and dry forage yield per 10a, crude protein and crude ash. But Namhaekong showed positive correlation between fresh forage yield per 10a and plant height, dry forage yield per 10a, crude protein, soluble nitrogen free extract.
有機質 施用量 差異가 麥門冬의 生育 및 收量에 미치는 影響
趙南棋,宋昌吉,朴良門,玄京卓 濟州大學校亞熱帶農業硏究所 1996 亞熱帶農業硏究 Vol.13 No.-
SummarySix organic matter rates (0, 1000, 1,500, 2,000, 2,500 and 3,000Kg/10a) were examined for their effects on growth and tuberous root yield of Liriope platyphylla Wang et Tang.The results obtained were summarized as follows;Both plant height and no. of tuberous roots per plant were greatest at 2,000kg of organic matter per 10a. Leaf width and root length were not significantly affected by organic matter rate. Root weight was increased as organic matter was increased from 0 to 2,500kg/10a and then decreased at 3,000kg. Weight of tuberous root, dry wt. of tuberous root and fresh weight were increased with increasing organic matter from 0 to 2,000kg/10a and then decreased with more than 2,500kg. SPAD reading of leaves was not significantly affected by organic matter rate. Results indicate that recommendable application quantity of organic matter for Liriope platyphylla Wang et Tang was about 2,000kg/10a in Cheju.
播種期 移動에 따른 차풀의 生育反應, 收量 및 粗成分 變化
玄京卓,趙南棋,吳恩敬,高志棅,趙英一 濟州大學校 亞熱帶農業硏究所 1999 亞熱帶農業硏究 Vol.16 No.-
ABSTRACT This study was conducted to determine influence of planting date, seeding rate and phosphate rate on main growth, characters, yield and chemical composition of senna from March 11, 1998 to December in Cheju Province. Days to flowering was lessened as planting date was delayed. The plant height of senna was the longest at 31 March planting (99cm) than at the other planting date. Stem diameter, number of leaves were increased at 31 March but number of branches was not affected by planting date. And number of withering leaves were increased as planting date was earlier. Fresh forage yield per lOa, for senna was the greatest (4,660kg) at 31 March planting, the second was 4,397kg at 1 April planting and the reduced the 3,473kg at 11 March planting. Also dry matter yield per lOa, crude protein yield and total digestable nutrient (TDN) yield was nearly the same tendency. Crude protein, crude fat percent was the greastest at 11 March planting and than decreased with further increased at planting date. Crude ash and crude fiber percent was decreased tendency as planting date was delayed. Nitrogen free extract (NFE), TDN percent was increased tendency as planting date was delayed. SPAD reading value of leaves had an efficiency increased as planting date was delayed.
玄京卓,趙南棋,宋昌吉,姜榮吉 濟州大學校亞熱帶農業硏究所 1996 亞熱帶農業硏究 Vol.13 No.-
SummaryFive shading levels (0, 5, 50, 75 and 90%) were investigated for their effects on growth and yield of Liriope platyphylla Wang et Tang. The results obtained were summarized as follows;1. Plant height and leaf length increased with increasing shading levels up to 50% and then decreased with further increasing shading. Leaf width ranging from 0.49 to 0.52cm tended to linearly decrease as shading level was increased. 2. SPAD reading was linearly increased from 56.9 to 69.5 as shading level was increased from 0 to 90%. 3. There was no difference in fresh leaf weight among shading levels. However, fresh weight of roots, tuberous roots, and shoots + roots decreased with increasing shading level. 4. The number of tuberous roots per plant decreased from 21.4 at 0% shading to 11.8 at 90% shading. Dry weight per tuberous root was heaviest (0.4g) at 35% shading and then declined with increasing shading level. 5. Dry tuberous root yield per plant ranged from 6.5g at 0% shading to 3.1g at 90% shading showing linear relationship between yield and shading level. Yield per plant highly correlated wish the number of tuberous roots per plant. 6. The results indicate that growing Liriope platyphylla Wang et Tang under shading has no advantage in Cheju province.