書誌事項
- タイトル別名
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- Statistical Consideration of Relationship between Solar Radiant Quantity and Fig Maturation
- イチジク ノ ジュクセイ ト ニッシャリョウ ノ カンケイ ニ カンスル トウ
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Japan does not receive enough solar energy to grow figs. By comparing the received solar energy of major fig producing areas of the world and Japan, we have derived the supplemental light energy value, which is the minimum additional light energy necessary for optimal fig maturation. By supplementing natural sunlight with this optimum value by electrical lighting, the fig season in Japan can be lengthened, crop volume increased, and fruit quality improved.<BR>The optimum period for fig maturation in Nagoya is from June to September, when the minimum temperature remains above 20°Cin Nagoya, Athens, Izmir, and San Diego. During this same period, however, Athens receives direct sunlight for approximately 1, 308 hours, while Nagoya gets approximately 638 hours, i. e. about 49% of Athens. These four months also provide average estimated solar energy levels of 17.5 MJ·m-2·days-1 for Athens, 15.3 MJ·m-2·days-1 for San Diego, and 8.8 MJ·m-2·day-1 for Nagoya. A normal cultivation environment from January to March in winter will require additional supplemental light energy 5.1 MJ·m-2·day-1 which is derived from the difference in the solar energy between 8.8 MJ·m-2·day-1 for outdoor maturation in Nagoya and 3.7 MJ·m-2·day-1 for a green house in winter.
収録刊行物
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- 照明学会誌
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照明学会誌 82 (8), 544-550, 1998
一般社団法人 照明学会
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詳細情報 詳細情報について
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- CRID
- 1390001204083974784
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- NII論文ID
- 130006763370
- 110001144488
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- NII書誌ID
- AN00268860
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- ISSN
- 1349838X
- 21851506
- 00192341
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- NDL書誌ID
- 4527411
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