High-calcium-magnesium-silicon strong-buffering organic fertilizer and preparation method thereof

Abstract

The invention belongs to the technical field of organic fertilizers, and particularly relates to a high-calcium-magnesium-silicon strong-buffering organic fertilizer and a preparation method thereof. The high-calcium-magnesium-silicon strong-buffering organic fertilizer is prepared from the following raw materials in parts by weight: 70-80 parts of a filter mud organic fertilizer, 10-15 parts of dolomite powder, 9-14 parts of a calcium magnesium phosphate fertilizer, 0.5-1.0 part of sodium metasilicate and 0.5-2.0 parts of a cross-linking agent. Compared with a traditional calcareous soil conditioner, the soil conditioner disclosed by the invention has the dual functions of fertilizing soil and inhibiting acidification for a long time of a traditional organic fertilizer while rapidly reducing the acidity of the soil; compared with a common organic fertilizer, on the premise that the industrial standard is met, the buffer capacity of unit fertilizer to acid is greatly improved, and the dual effects of efficient acid treatment and soil fertility improvement are achieved through the synergistic effect of rapid neutralization of active acid and long-acting inhibition of potential acid and organic matter improvement. After granulation process treatment, the problem of dust raising during application of traditional lime powder is solved, mechanical operation and large-scale transportation are facilitated, and the practical bottleneck of popularization and application of organic fertilizer is effectively broken through.

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