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Improving phosphorus use efficiency for snap bean production by optimizing application rate

Author

Listed:
  • G.D. Liu

    (Horticultural Sciences Department, IFAS, University of Florida, Gainesville, USA)

  • K. Morgan

    (Soil and Water Science Department, Southwest Florida Research and Education Center, IFAS, University of Florida, Immokalee, USA)

  • B. Hogue

    (Horticultural Sciences Department, IFAS, University of Florida, Gainesville, USA)

  • Y.C. Li

    (Soil and Water Science Department, Tropical Research and Education Center, IFAS, University of Florida, Homestead, USA)

  • D. Sui

    (Palm Beach County Cooperative Extension, IFAS, University of Florida, West Palm Beach, USA)

Abstract

Phosphorus (P) is essential for crop production. Adequate application P rate is critical for enhancing productivity and profitability of snap bean (Phaseolus vulgaris L.). The goal of this study was to optimize P application rate for commercial snap bean production in south Florida. Six trials were conducted on sandy soils and muck soils in Hendry County and Palm Beach County, Florida, USA. Before planting cv. Caprice snap bean, plots were fertilized with different P application rates in the form of triple superphosphate (0-45-0). An increase in P2O5 application rates up to 134 kg/ha P2O5 significantly increased the marketable bean yields. However, beyond that point, significant field gains did not occur with further increased application. At 134 kg/ha P2O5, bean appearance quality was the best compared to the other treatments. These results indicate that 134 kg/ha P2O5 produced best bean appearance quality and was the optimum rate for commercial production of snap bean in high-pH soils in south Florida.

Suggested Citation

  • G.D. Liu & K. Morgan & B. Hogue & Y.C. Li & D. Sui, 2015. "Improving phosphorus use efficiency for snap bean production by optimizing application rate," Horticultural Science, Czech Academy of Agricultural Sciences, vol. 42(2), pages 94-101.
    • Handle: RePEc:caa:jnlhor:v:42:y:2015:i:2:id:229-2014-hortsci
    DOI: 10.17221/229/2014-HORTSCI
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    References listed on IDEAS

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    1. Paul D. Hallett, 2008. "A brief overview of the causes, impacts and amelioration of soil water repellency - a review," Soil and Water Research, Czech Academy of Agricultural Sciences, vol. 3(SpecialIs), pages 21-29.
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