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李一球,裵秉鎬,李京淳 建國大學校附設 應用科學硏究所 1976 理學論集 Vol.2 No.-
In the growth of plants, they are under considerable, various influences of the atmospheric temperature, the amount of rainfall and the conditions of soil with which they have come in direct contact. It may be safely said that these influences are indispensably essential to plants. The phenomenon of soil sickness, however, is complelled to be noticed to a certain extent. The object of this work is to study the phenomenon of soil skckness-that is, a kind of allelopathy. In order to verify its importance in the first place, peas(Pisum sativum)were applied to the experimental materials. Their roots and stems collected last year(1974)were dried and reduced to powder. Some Soil, which was mixed with the powder in different quantity respectively, was put into pots for the purpose of cultivation peas. As peas grew higher, their own rates of growth were attentively examined and compared with one another. In the other kind of experiment, some water was provided a group of pots with peas that has already grown to a certain degree. Oozed out through the holes of the pots, some liquid was caught with care. On the second stage the liquid was mingled with water, to make its density different. This liquid was after offered other groups of peas. Under these differential conditions, aspects of the plants were likewise measured and compared. In this experiment, all peas, however, were cultivated under the same living condition of soil, water and sunlight, except these inhibitory substances. As the result, their growth rates evidenced characteristically a variety of distinctions, indicating the fact that the soil sickness should have remarkable effects upon plants.
이일구 ( Il Koo Lee ),배병호 ( Byung Ho Bai ),이경순 ( Kyung Soon Lee ) 건국대학교 기초과학연구소 1976 理學論集 Vol.2 No.-
In the growth of plants, they are under considerable, various influences of the atmospheric temperature, the amount of rainfall and the conditions of soil with which they have come in direct contact. It may be safely said that these influences are indispensably essential to plants. The phenomenon of soil sickness, however, is complelled to be noticed to a certain extent. The object of this work is to study the phenomenon of soil skckness-that is, a kind of allelopathy. In order to verify its importance in the first place, peas (Pisum sativum) were applied to the experimental materials. Their roots and stems collected last year (1974) were dried and reduced to powder. Some Soil, which was mixed with the powder in different quantity respectively, was put into pots for the purpose of cultivation peas. As peas grew higher, their own rates of growth were attentively examined and compared with one another. In the other kind of experiment, some water was provided a group of pots with peas that has already grown to a certain degree. Oozed out through the holes of the pots, some liquid was caught with care. On the second stage the liquid was mingled with water, to make its density different. This liquid was after offered other groups of peas. Under these differential conditions, aspects of the plants were likewise measured and compared. In this experiment, all peas, however, were cultivated under the same living condition of soil, water and sunlight, except these inhibitory substances. As the result, their growth rates evidenced characteristically a variety of distinctions, indicating the fact that the soil sickness should have remarkable effects upon plants.