1. Effects of Nitrogen Management on the Yield of Winter Wheat in Cold Area of Northeastern China
- Author
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Lian-peng LI, Yuan-ying LIU, Sheng-guo LUO, and Xian-long PENG
- Subjects
cold area ,winter wheat (Triticum aestivum) ,N management ,population quality ,yield ,Agriculture (General) ,S1-972 - Abstract
A plot experiment including four treatments, CK (N 105 kg ha−1 as urea, including a basal N application of 35 kg ha−1 and a topdressing N 70 kg ha−1 at turned green stage) and optimized N management (OPT1, OPT2 and OPT3, applied two-thirds, one-third and two-fifths N at jointing stage, respectively, total N 60 kg ha−1), was conducted to evaluate the effects of nitrogen management on growth and N uptake of winter wheat (Triticum aestivum), Dongnong 1, which is the first highly cold tolerant winter wheat in China. Index of population quality, N uptake and yield were determined. The ear-bearing tiller rate was increased by above 12%, and the leaf area index, biomass and N uptake were significantly decreased (P
- Published
- 2012
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