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Soil Science Society of America Journal Abstract -

Response of Phaseolus Vulgaris to Zine as Influenced by Phosphorus Level and Source1


This article in SSSAJ

  1. Vol. 35 No. 6, p. 935-938
    Received: Mar 15, 1971
    Accepted: June 4, 1971

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  1. Gary M. Lessman and
  2. Boyd G. Ellis2



The percentage of fertilizer Zn which remained water soluble increased with increasing Zn additions until a Zn/P ratio of 1:29 was reached and then decreased with increasing quantities of ZnO incorporated in ammonium polyphosphate (APP). ZnO incorporated with ammonium orthophosphate (AOP) was less water soluble, in all cases, than the same quantity of ZnO incorporated into APP. Zn content of 3-week-old Phaseolus vulgaris L. (pea beans) was positively related to the water-soluble Zn present in the fertilizer. Yield and Zn uptake from field experiments with pea beans grown on calcareous soils indicated that APP is a more effective carrier than AOP in supplying Zn to the plant. With APP, a Zn/P ratio of 1:15 was inferior to ratios of 1:21 or 1:3 as measured by water-soluble Zn present, yield, and Zn uptake by pea beans.

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