Spatial variability of grape yield and its association with soil water depletion within a vineyard of arid northwest China

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• 作者：Tao Li^a ; ^b ; Xinmei Hao^a ; ^{haox@cau.edu.cn} ; Shaozhong Kang^a
• 关键词：Grapevine ; Soil water depletion ; Yield gap ; Boundary line analysis
• 刊名：Agricultural Water Management
• 出版年：2017
• 出版时间：1 January 2017
• 年：2017
• 卷：179
• 期：Complete
• 页码：158-166
• 全文大小：1938 K
• 卷排序：179

文摘

Spatial structures of grape yield was similar between the two years. Upper boundary line between yield with soil water depletion was best fitted by a quadratic function in both years. Boundary line analysis could be used to estimate the potential yield and create yield gap map of the field. Comparisons of soil properties between low and high yield gaps could help identify factors contributing to the larger yield gap.