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The effects of the temperature and humidity of the soil on the lily.

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This experiment is part of the basic investigation of the soil for bringing up lilies, and it was to examine what is the best temperature and humidity of soil. The temperature is classified into groups; 30℃, 20℃, 10℃. The croft lily was used. The soil used was clayly soil 40%, 30%, 20%, Lilium longiflorum var. gigantum and croft lily were used. Besides Volcanic ashsoil 65%, 50%, 30%, were used for comparison. (A) The effects from the temperature of soil are as follows:- 1. The plant will grow very well in the temperature 30℃-20℃, but very slow is the temperature lower than 10℃. 2. The days taken from planting till flowering were fewer but the plant was smaller. 3. The expenditure of the old scales was faster in 30℃. The growth of new scales was better in 20℃ and worse in lower temperature. 4. The bredth of the leaves and their weight were more in 20℃, but the relation between the ratis of increase of weight and their growth was not clearly seen. (B) The effects caused by humidity are as follows:- 1. The growth of stems was most excellent in medium humidity. 2. In medium humidity both kinds showed excellent effects in proportion to their growth, in their number of leaves and flowers, and the size of flowers during their flowering time. 3. As to the ratio of increasing of bulbs and their growth volcanic ash (65%) and clay (30%) were fit very well for L. longiflorum var. gigantvm, but clay (40%) was much better for the croft.

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