Nitrogen response surface models of zucchini squash, head lettuce and potato

@article{Huett2004NitrogenRS,
  title={Nitrogen response surface models of zucchini squash, head lettuce and potato},
  author={D. Huett and E. Dettmann},
  journal={Plant and Soil},
  year={2004},
  volume={134},
  pages={243-254}
}
Plants grown at 5 nitrate (N) levels ranging from 2–36 mmol L−1 for lettuce and 2–43 mmol L−1 for zucchini squash and potato were harvested over the growth period to maturity at a minimum of 2 week intervals. Gamma × cubic response surface models fitted actual dry matter growth data quite precisely (R2>0.98) from which growth and dry matter partitioning could be derived.Total dry matter growth was very responsive to N and maximum growth was predicted to occur at an N level of 14.2 mmol L−1 for… Expand

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