Welcome to Journal of Agriculture,

Journal of Agriculture ›› 2020, Vol. 10 ›› Issue (4): 71-76.doi: 10.11923/j.issn.2095-4050.cjas18110020

Special Issue: 资源与环境 油料作物 农业气象 农业生态

Previous Articles     Next Articles

Soybean Yield in the Western Guan-Zhong Areas: The Response to Climatic Ecological Condition

Qu Yang1, Wang Kezhen1(), Liu Yang1, Kang Junke1, Liu Yongbin3, Liang Fuqin2   

  1. 1 Baoji Academy of Agricultural Science, Qishan 722499, Shaanxi, China
    2 Yanan Institute of Agricultural Science, Yanan 716000, Shaanxi, China
    3 Agricultural Technique Spreading Centers in Linyou, Linyou 721500, Shaanxi, China
  • Received:2018-11-29 Revised:2019-04-12 Online:2020-04-20 Published:2020-04-20
  • Contact: Wang Kezhen E-mail:kezhen9859@163.com

Abstract:

Studying key meteorological factors affecting the soybean yield, we aim to provide a reference for soybean production in western Guan-Zhong areas. We carried out the long-term positioning observation by taking soybean cultivar ‘Qindou 8’ as the material, and studied the response of soybean yield to climatic ecological condition. The results showed that: the interannual performance of soybean yield and main agronomic traits was divided into 3 categories, and the average yield of the 1 st category was 1364.55 kg/hm 2 and 733.8 kg/hm 2 higher than that of the 2 nd and 3 rd category, respectively; but the average effective accumulated temperature at the growth stage of the 1 st category was 59.18℃ lower than that of the 3 rd category, and the average effective precipitation at the growth stage of the 1 st category was 22.42 mm higher than that in the 2 nd category; disastrous weather was negatively correlated with soybean yield and component factors, and the high temperature days and precipitation from September to October were significantly and negatively correlated with per unit area yield; the soybean yield had a quadratic function relationship with the effective accumulated temperature before flowering and after flowering and the effective precipitation before flowering, and continued to decline with the increase of effective precipitation after flowering. Meteorological factors have an effect on soybean yield and component factors, and extreme weather is the key to the formation of soybean yield.

Key words: Soybean, Yield, Meteorological Factor, the Western Guan-Zhong Areas, Agronomic Traits

CLC Number: