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White Phosphorus as a Phosphatic Fertilizer
Author(s) -
Rodriguez Armando,
Bohn Hinrich L.,
Johnson Gordon V.
Publication year - 1972
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1972.03615995003600020042x
Subject(s) - sorghum , phosphorus , phosphate , calcareous , calcareous soils , human fertilization , phytotoxicity , soil water , agronomy , fertilizer , chemistry , white phosphorus , phosphate fertilizer , white (mutation) , diammonium phosphate , horticulture , biology , botany , ecology , biochemistry , organic chemistry , gene
White P, in amounts equivalent to phosphate fertilization rates, oxidized within 2 days in soils. Sorghum ( Sorghum vulgare Pers.) and tomatoes ( Lycopersicon esculentum Mill.) responded equally to white P and NH 4 H 2 PO 4 in greenhouse tests of neutral and calcareous soils. In an acid soil, the growth rate was delayed initially in the white P treatments compared to phosphate. Later growth narrowed the gap between the phosphatic sources. After liming the acid soil, the growth delay was absent and the yields from white P treatments were as great as from NH 4 H 2 PO 4 . No evidence of phytotoxicity was found in these experiments.