Abstract:Water scarcity is a major limiting factor for crop production in North China Plain (NCP), which produces the majority of the country's winter wheat (Triticum aestivum L.). The objective of this three-year field study was to see if and when irrigation one-time in spring improves grain yield and water use efficiency. Four sets of irrigation were established at the 3-leaf visible stage (L3) and the L4, L5, and L6 stages. The spike number, 1,000-grain weight, and water consumption increased progressively when irri… Show more
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