한국토양비료학회지 (Korean Journal of Soil Science and Fertilizer)
- 제14권4호
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- Pages.185-189
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- 1982
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- 0367-6315(pISSN)
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- 2288-2162(eISSN)
습답(濕畓)에서 수리특성(水理特性)과 수도생육(水稻生育)과의 관계(關係)
Relation between Hydraulic Properties and Growth of Rice in Poorly Drained Paddy Soils
- Park, Chang-Seo (Institue of Agricultural Sciences) ;
- Im, Jeong-Nam (Institue of Agricultural Sciences) ;
- Ryu, Kwan-Sik (Institue of Agricultural Sciences)
- 발행 : 1982.03.25
초록
습답(濕畓)의 저수요인(低收要因)을 구명(究明)하기 위(爲)하여 수분이동(水分移動) 방향(方向), 토양온도(土壤溫度) 및 산화환원전위(酸化還元電位)와 수도(水稻)의 생육(生育)과의 관계(關係)를 조사(調査)한 결과(結果)는 다음과 같다. 1. 곡간습답(谷間濕畓)에서는 지점(地点)에 따라
Piezometric head, soil temperature, and redox potential were investigated to identify the factors causing the poor growth of rice in poorly drained paddy soils. 1. In local valleys the variegated piezometric head difference was observed place to place and resulted in uneven growth of rice while nearly uniform head difference was observed in alluvial plains. 2. Direction of water flow in paddy soils seemed to develop a significant difference in soil temperature and plant growth. 3. Negative correlation between piezometric head and rice growth and/or yiled was observed, and yield was decreased with the increase of upward flow of water. 4. There was a positive correlation between soil temperature and rice growth and/or yield. Cold temperature below
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