Microelement deficiency corrector for farmland and process for preparation thereof

摘要

The corrector comprises a mixture of trace elements, in hydrated sulfate form, optionally containing carbonates and including iron, magnesium, manganese and zinc, with the following typical analysis: Magnesium 3.5-6%; iron 12-19%; Manganese 1-1.5%; zinc 0.2-0.3% and organic matter 0-45%.PPThe process comprises mixing 50- 66% of the by- product of manufacture of titanium bioxide via sulfate, 5- 10% alkaline earth carbonate or magnesite and, optionally, 10-45% organic matter, grinding the mixture, granulating it and drying it, cooling it and screening it.PPThe corrector is used in agriculture to prevent and control ferric chlorosis, to favor physiological processes of harvests in which iron takes part and to avoid deficiencies of manganese and zinc in farmland.