Grain 15N of crops applied with organic and chemical fertilizers in a four-year rotation

  title={Grain 15N of crops applied with organic and chemical fertilizers in a four-year rotation},
  author={Wan Joo Choi and Muhammad Azeem Arshad and Scott Xiaochuan Chang and Tae Hwan Kim},
  journal={Plant and Soil},
Variations in crop grain and soil N isotope composition (δ15N) in relation to liquid hog manure (δ15N of total N was +5.1‰), solid cattle manure (+7.9‰) and chemical fertilizer (+0.7‰ for urea and −1.9‰ for ammonium phosphate) applications, and control (no fertilizer application) were examined through a 4-year crop rotation under field conditions. Canola (Brassica napus), hull-less barley (Hordeum vulgare), wheat (Triticum aestivum), and canola were grown sequentially from 2000 (year 1) to 2003… CONTINUE READING


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