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- W2324023762 abstract "冬小麦不同株型品种和灌溉类型是影响产量遥感估测的重要因素, 对二者的实时监测可以提高产量的估测精度。结合遥感数据(MODIS 数据)与非遥感数据(GPS 数据和外业调查资料), 研究了不同株型品种冬小麦在水、旱地条件下归一化差值植被指数(<em>NDVI</em>)的动态变化特征, 分析了不同生育时期<em>NDVI</em> 与产量之间的关系。结果表明: 冬小麦不同株型品种间<em>NDVI</em> 随生育时期的变化具有明显一致性, 呈“小-大-小”变化趋势; 拔节期至孕穗期不同株型品种冬小麦<em>NDVI</em> 差异显著, 披散型品种高于紧凑型品种, 该时期为准确识别冬小麦株型的最佳时期。水、旱地同一种株型的冬小麦品种在整个生育时期<em>NDVI</em> 均值差异较显著, 均表现为水地冬小麦高于旱地冬小麦, 尤以抽穗初期最为明显。水旱地冬小麦不同生育时期<em>NDVI</em> 与产量相关性均以抽穗初期为最高, 但用抽穗初期和灌浆期<em>NDVI</em> 与产量的复合回归方程进行产量预测比用抽穗初期<em>NDVI</em> 与产量的回归方程效果好, 旱地冬小麦尤为明显。" @default.
- W2324023762 created "2016-06-24" @default.
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- W2324023762 date "2011-02-17" @default.
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- W2324023762 title "Changes in <I>NDVI</I> and yield of winter wheat cultivars with different plant types" @default.
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- W2324023762 doi "https://doi.org/10.3724/sp.j.1011.2011.00087" @default.
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