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Agronomic effectiveness of Phosphal-34 on flooded rice in acid soils

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Abstract

Rice variety RD-23 grown on 3 acid soils named Manorom (clay loam soil), Roi-et (sandy loam soil) and Ubon (sandy loam soil) soil series showed marked response to added phosphorus. Based on grain yield response and phosphorus uptake, diammonium phosphate (DAP), Phosphal-34 (PP-34) and the combination of the two P sources (DAP + PP-34) were equally effective. For flooded rice under these experimental conditions, Phosphal-34 fertilizer could be used as an alternative source of phosphorus. It can be used either directly or partially in combination with diammonium phosphate.

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References

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Authors and Affiliations

  1. Department of Soils, Faculty of Agriculture, Kasetsart University, 10900, Bangkok, Thailand

    P. Duangpatra, P. Prabhuddham & C. Suwannarat

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  1. P. Duangpatra
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  2. P. Prabhuddham
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  3. C. Suwannarat
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Duangpatra, P., Prabhuddham, P. & Suwannarat, C. Agronomic effectiveness of Phosphal-34 on flooded rice in acid soils. Fertilizer Research 34, 107–110 (1993). https://doi.org/10.1007/BF00750104

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  • DOI: https://doi.org/10.1007/BF00750104

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