著者

丸山 篤志 大場 和彦 黒瀬 義孝

出版者

The Society of Agricultural Meteorology of Japan

雑誌

農業気象 (ISSN:00218588)

巻号頁・発行日

vol.56, no.4, pp.275-282, 2000-12-10 (Released:2010-02-25)

参考文献数

9

被引用文献数

2 1

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Effects of wind and salt water exposure on yield of paddy rice were investigated by using a wind tunnel and sprinkler. Rice plants were exposed to seventy-two different treatment combinations of salt concentration, wind duration, cultivar (Hinohikari and Yumehikari) and growth stage. Photosynthesis on the day after treatment was decreased by wind and salt water exposure. Percentage and weight of filled grain at harvesting, and consequently yield were also decreased by wind and salt water exposure. Yield reduction in Hinohikari was more than Yumehikari due to a difference in wind tolerance between the two cultivars. The amount of adhered salt on the rice plants grown outdoors decreased after treatment due to rainfall, but the yield reduction was the same as cropping under cover (no rainfall) after treatment.The amount of adhered salt on the panicle after treatment was directly proportional to salt concentration in the sprayed water. Using the proportional coefficient, relationships between the amount of adhered salt on the panicle and relative yield of paddy rice were determined. Relative yield of paddy rice decreased from 1.0 to 0.2 when treated at heading time and 8-12 days after heading as the amount of adhered salt increased from 0 to 6mg per panicle. In the same way, relative yield decreased from 1.0 to 0.7 when treated at 21-25 days after heading. These relationships will be useful in predicting the yield of paddy rice affected by strong wind and salt from the sea caused by typhoons.

著者

大場 和彦 蒲原 新一 繁宮 悠介 市瀬 実里 中道 隆広

出版者

長崎総合科学大学附属図書館運営委員会

雑誌

長崎総合科学大学紀要 = Bulletin of the Nagasaki Institute of Applied Science (ISSN:24239976)

巻号頁・発行日

vol.57, no.2, pp.100-109, 2018-01-29

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Methodologies of science education have changed with the changing times. Although information-oriented society tends to make students away from science, the scientific knowledge and thinking method equipped in secondary education are useful in following daily life and career. We examined whether the curriculum of the Life Environment Engineering Course in Nagasaki Institute of Applied Science can cover many contents of science in secondary education and whether the curriculum is beneficial for teacher training. Our curriculum consists of five disciplines: agricultural meteorology, environmental analytical chemistry, energy conservation technology, biotechnology, and ecology. Their integrated education enables students to learn many contents of high-school science and also interaction among four subjects: physics, chemistry, biology, and geology. Science teachers trained in this curriculum however would have difficulty when teaching existing disciplinary science, but they would exert their conception of nature in the secondary educational subject “the period of integrated study” where interdisciplinary and inquiry learning are encouraged.

著者

大場 和彦 下高 敏彰 泉 哲也 中道 隆広

雑誌

長崎総合科学大学紀要 = Bulletin of the Nagasaki Institute of Applied Science

巻号頁・発行日

vol.52, pp.31-39, 2012-08-30