小麦受渍抑制天数指标的探讨

• 作 者: 张蔚榛 张瑜芳 沈荣开
• 出 处: 武汉水利电力大学学报
• 发表日期: 1997年05期
• 关键词: 生育阶段 产量关系 田间试验 敏感因子 试验研究 地下水埋深 排水条件 作物产量 线性关系 乳熟

在青浦农田水利试验站田间试验基础上，对农作物相对产量与累积超标水位的关系，小麦各生育阶段受渍敏感因子，以及抑制天数指标和小麦相对产量的关系等进行了探讨．在试验研究基础上，提出了减产速率因子的新概念，并利用累积减产指标与相对产量模型预测小麦在地下水持续高水位条件下的相对产量．

Based on the field experiments of Qingpu farmland water conservancy experimental station, the relationship between the relative crop yield and accumulated water level exceeded, the susceptibility factors of wheat at each growth stage, and the relationship between the days index of inhibition and the relative yield of wheat were discussed. Based on the experimental research, a new concept of rate-reduction factor was put forward and the relative yield of wheat under the condition of continuous high water table of groundwater level was predicted by using cumulative yield reduction index and relative yield model.