Open AccessAccounting for strontium content in the system ameliorant - soil - plant to establish an environmentally safe dose of phosphogypsum
Author(s) -
Gencho Popov,
V P Belogolovtsev,
A V Flying,
V I Gubov,
K E Denisov
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/723/4/042022
Subject(s) - phosphogypsum , strontium , chernozem , phosphorite , environmental science , agronomy , soil water , raw material , chemistry , soil science , fertilizer , biology , organic chemistry
The strontium content in phosphogypsum, soil and plants has been studied. It has been established that during the processing of phosphate raw materials, most of the strontium passes into phosphogypsum, reaching 1.4-2.3% in it. With the introduction of a single dose of phosphogypsum (23 t / ha), the content of total strontium in the soil increased to 309-364, and a double dose to 402, which is below the maximum permissible level (600 mg / kg). The ratio between calcium and strontium in the medium sodium reclaimed chernozem solonetz was at a good and satisfactory level, and in plants it was more than 100, which is typical for territories with a relatively satisfactory ecological situation. Meliorative (calculated) agronomic and ecologically safe rates of phosphogypsum consumption for soils of solonetzic complexes of the Volga economic region are given.