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用盆栽方法研究了夏大豆叶片蒸腾速率的时空分布及其与水肥条件的关系。结果表明,夏大豆叶片蒸腾速率日变化,蒸腾速率与叶龄、株龄、水肥条件的关系均呈单峰曲线,可用模式y=ax~pe~(bx)模拟。各生育时期植株干物质积累与蒸腾速率呈显著线性正相关关系.
The temporal and spatial distribution of transpiration rate of summer soybean and its relationship with water and fertilizer conditions were studied by pot culture method. The results showed that the diurnal changes of transpiration rate and the relationship between transpiration rate and leaf age, plant age and water and fertilizer conditions of summer soybean showed a single peak curve, which could be modeled as y = ax ~ pe ~ (bx). There was a significant linear positive correlation between plant dry matter accumulation and transpiration rate during each growth period.