Modeling nitrogen and water management effects in a wheat-maize double-cropping system.

  title={Modeling nitrogen and water management effects in a wheat-maize double-cropping system.},
  author={Quanxiao Fang and Liwang Ma and Qiwu Yu and Robert Malone and Swaran Saseendran and Lajpat R. Ahuja},
  journal={Journal of environmental quality},
  volume={37 6},
Excessive N and water use in agriculture causes environmental degradation and can potentially jeopardize the sustainability of the system. A field study was conducted from 2000 to 2002 to study the effects of four N treatments (0, 100, 200, and 300 kg N ha(-1) per crop) on a wheat (Triticum aestivum L.) and maize (Zea mays L.) double cropping system under 70 +/- 15% field capacity in the North China Plain (NCP). The root zone water quality model (RZWQM), with the crop estimation through… CONTINUE READING
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