Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (26): 272-277.doi: 10.11924/j.issn.1000-6850.2013-3259

Special Issue: 玉米 农业气象

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Analysis of Meteorological Elements’Effect on Corn Yield in West Region of Liaoning

  

  • Received:2013-12-13 Revised:2014-01-23 Online:2014-09-15 Published:2014-09-15

Abstract: In order to provide more specifically agro- meteorological services, it is necessary to realize the relationship between corn yield and meteorological elements in each development stages in west region of Liaoning Province. The author analyzed relationship between corn yield and meteorological elements which include average temperature, minimum temperature, maximum temperature, precipitation and sunshine duration by using data of corn development stages of 6 agro-meteorological stations in west region of Liaoning Province and meteorological elements data corresponding station observation and corn yield data form 1981 to 2010. The results showed that: (1) the meteorological yield variation of 6 regions in 30 years was highly similar, and the meteorological elements’variation of 6 stations during development stages was extremely regional. (2) Development stage which meteorological elements had an impact on the corn yield in west Liaoning was jointing to heading stage, and during this stage the relationship between average temperature, maximum temperature, sunshine duration and meteorological yield was significant negative correlative. (3) It was a significant negative correlative relationship between meteorological yield and the number of days maximum temperature above 30-31℃, precipitation less than 10 mm during jointing to heading stage.