本文研究了四季苎麻的化学成分随生长期变化情况。
In this paper, we studied the dynamic change rules of chemical composition and the growth phase of ramie.
试验结果表明：不同阶段生长阶段的玉米冠层叶片叶绿素的空间分布不均匀，空间分布的不均匀性不随生长期变化而改善。
The results indicated that the spatial variability of the canopy chlorophyll content of corn was variable on different growth stages. The variance was not changed over the growth stages.
“生长期的变化预示着这里用于放牧的草地植被的生物量将减少，”徐教授说道。
"The change in the growing season may mean there is less grassland biomass available for grazing," says Xu.
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