| Correlation analysis of climatic factors during different growth periods and output of winter wheat in eastern Gansu |
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| DOI：10.7606/j.issn.1000-7601.2004.02.26 |
| Key Words: winter wheat meteorological factor yield |
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| Abstract: |
| This article analyzes the effects of sunlight, temperature and precipitation during different periods on the output of winter wheat in the Semi-humid and Semi-arid loess region of eastern Gansu. The result shows that the sunlight hours and ≥0℃ accumulated temperature during booting to mature stage, and the soil water content at early spring + the precipitation during reviving to booting stage (R2+3H) are the determinative agricultural climate factors to the output of winter wheat. Futhermore, the regression equation is set up. |