| The regional distribution and best sowing date of mulching cotton in the east part of Hexi corridor region |
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| DOI：10.7606/j.issn.1000-7601.2003.02.06 |
| Key Words: mulching cotton area distribution best sowing date |
| Author Name | Affiliation | | WANG Runyang | nstitute of Arid Meteorology, China Meteorological Administration, Lanzhou 730020, China | | YANG Xingguo | nstitute of Arid Meteorology, China Meteorological Administration, Lanzhou 730020, China | | MA Xingxiang | Meteorologica Bureau of Wuwei, Wuwei, Gansu 73300, China | | LI Jingyu | Meteorologica Bureau of Minqin, Gansu 733300, China |
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| Abstract: |
| On the basis of different sowing date experiment, combining with local climate data, the regional distribution, best sowing date and field microclimate change of mulching cotton were analyzed. The result shows that: the different sowing date greatly affects the yield of mulching cotton, the best sowing date is the forth day after the first day of daily mean temperature≥10℃. In the east part of Hexi corridor region, the region with elevation of 1100-1 380 m is suitable zone of mulching cotton, the region with elevation of 1380-1450 m is cultivatable zone, the area with elevation of above 1 450 m can not cultivate mulching cotton. The best sowing date is April 8-22. |
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