Agronomical and physiological aspects of the role of nitrogen in yield formation of cereals

  title={Agronomical and physiological aspects of the role of nitrogen in yield formation of cereals},
  author={J. H. J. Spiertz and Nanneke de Vos},
  journal={Plant and Soil},
Nitrogen exerts its influence on crop growth and grain yield in various ways. Early top dressings or a high level of soil nitrogen stimulate tiller formation and leaf growth, which results in an increase of shoot dry weight and leaf area index. Late top dressings promote the survival of ear-bearing tillers, grain set and leaf area duration. Nitrogen compounds for grain growth are mainly supplied by the vegetative aerial parts (65–80%); the remainder originating from uptake and relocation by the… CONTINUE READING
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