Jinan 17. a strong gluten wheat, was taken as an experimental material to study the effect of nitrogen application methods on grain yield and quality.

以优质强筋小麦济南17为材料，研究氮肥不同施用量、基追比和追氮时期对小麦籽粒产量和品质的影响，分析了产量与品质的关系。

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Yangmai 11, a good medium gluten wheat variety suitable for preparing noodle, was taken as an experimental material to study the effects of nitrogen amount on starch properties and kernel quality.

以优质中筋专用小麦扬麦11号为试验材料，研究了氮肥用量对面条小麦淀粉性状及籽粒品质的影响。

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In physical experiments of ancient China, water was not only the object of observation and study, but also an experimental material, and it could sometimes become an experimental apparatus as well.

在中国古代，水既是物理实验观察和研究的对象，也是物理实验材料，有时还能成为实验器件。

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