Modifier containing phosphogypsum and slow-release binder and used for secondary salinization of land and application method
A slow-release binder and phosphogypsum technology, applied in chemical instruments and methods, applications, organic fertilizers, etc., can solve problems such as air, water system and soil pollution, and occupation of land resources, so as to curb the deterioration of the soil environment and restore the soil environment, to avoid the effect of volatilization
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Embodiment 1
[0023] A secondary saline-alkali soil improvement agent containing phosphogypsum and a slow-release binder, in parts by mass, whose raw material formula is as follows:
[0024] 120 parts of phosphogypsum, 400 parts of citric acid residue, 160 parts of slow-release binder, 120 parts of lobster shell, 80 parts of cottonseed meal, 60 parts of phytase, 20 parts of fly ash, 1200 parts of sorghum distiller's grains, 14 parts of trace element fertilizer Wherein, the slow-release binder includes by mass parts: 4 parts of polyvinyl alcohol, 3 parts of gelatinized starch, 2 parts of phosphogypsum, 1 part of ammonium sulfate, 1 part of sodium chloride, fluorosilicic acid 0.7 parts of sodium, 2 parts of potassium chloride, and 0.4 parts of superabsorbent resin.
[0025] Wherein, the trace element fertilizer includes 15 parts of nitrogen-fixing bacteria, 26 parts of chelated zinc, 10 parts of chelated iron, 12 parts of chelated magnesium, 8 parts of chelated copper, and 8 parts of organic ...
Embodiment 2
[0028] A secondary saline-alkali soil improvement agent containing phosphogypsum and a slow-release binder, in parts by mass, whose raw material formula is as follows:
[0029] 180 parts of phosphogypsum, 250 parts of citric acid residue, 200 parts of slow-release binder, 160 parts of lobster shell, 120 parts of cottonseed meal, 30 parts of phytase, 8 parts of fly ash, 800 parts of sorghum distiller's grains, 10 parts of trace element fertilizer Wherein, the slow-release binder includes by mass parts: 4 parts of polyvinyl alcohol, 1 part of gelatinized starch, 2 parts of phosphogypsum, 1 part of ammonium sulfate, 1 part of sodium chloride, fluorosilicic acid 0.7 parts of sodium, 2 parts of potassium chloride, and 0.4 parts of superabsorbent resin.
[0030] Wherein, the trace element fertilizer includes 15 parts of nitrogen-fixing bacteria, 26 parts of chelated zinc, 10 parts of chelated iron, 12 parts of chelated magnesium, 8 parts of chelated copper, and 8 parts of organic ma...
Embodiment 3
[0033] A secondary saline-alkali soil improvement agent containing phosphogypsum and a slow-release binder, in parts by mass, whose raw material formula is as follows:
[0034] 140 parts of phosphogypsum, 300 parts of citric acid residue, 160 parts of slow-release binder, 120 parts of lobster shell, 85 parts of cottonseed meal, 30 parts of phytase, 10 parts of fly ash, 850 parts of sorghum distiller's grains, 10 parts of trace element fertilizer Wherein, the slow-release binder includes by mass parts: 4 parts of polyvinyl alcohol, 1 part of gelatinized starch, 2 parts of phosphogypsum, 1 part of ammonium sulfate, 1 part of sodium chloride, fluorosilicic acid 0.7 parts of sodium, 2 parts of potassium chloride, and 0.4 parts of superabsorbent resin.
[0035]The trace element fertilizer comprises 15 parts by mass parts of nitrogen-fixing bacteria, 26 parts of chelated zinc, 10 parts of chelated iron, 12 parts of chelated magnesium, 8 parts of chelated copper, and 8 parts of organ...
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