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李廷德 건국대학교 1979 論文集 Vol.9 No.1
This experiment was carried out investigate the influence of the adequate fertilizing amount and plant density on qualities and yields of flue-cured tobacco in low productive fields. The results obtained are as follows: ① In low productive fields, the influence of soil moisture was very remarkable on the plant growing in fields, and yields. ② There were significant increases in yield, leaf area per 10 a in the plots which were cultured densely and were applied much amount of fertilizer. ③ In fields which were able to produce yields below 180kg per 10a, plant spacing of 2,778 plants per 10a (90cm 10cm) are needed for increasing yields above 200kg per 10a. ④ In relation to the amount of fertilizer and quality, qualities were almost no significant difference in the plots applied in 20% increasing fertilizer.