Application of nitrification inhibitor in nitrogen-containing fertilizer

Abstract

The invention relates to stabilized fertilizer, in particular to a nitrification inhibitor and application thereof in the stabilized fertilizer. The nitrification inhibitor is methyl p-hydroxyphenylpropionate; the stabilized fertilizer is prepared by adding the nitrification inhibitor, namely, the MHPP (Methyl p-hydroxyphenylpropionate), with the pure nitrogen content of 5 to 10 percent into ammonium nitrogen fertilizer or ammonium producing nitrogen fertilizer. The MHPP serving as the nitrification inhibitor has the advantages that the inhibiting effect is good, leaching loss of the nitrification inhibitor along with water is difficult to cause, the toxicity is low, the pollution to the environment is low (the nitrification inhibitor is prepared by extracting a plant source), and the like. After nitrogen fertilizer which contains the compound is applied to a farmland, a nitrifying process of the ammonium nitrogen fertilizer in soil can be effectively regulated and controlled, so that higher content of ammonium ions can be maintained in the soil for a long time, and the generation and accumulation of nitrate in the soil are reduced; therefore, the leaching loss of nitrogen element in the soil and the denitrification gaseous nitrogen loss are reduced; the fertilizer efficiency of the nitrogen fertilizer is prolonged; the absorption of crops to the nitrogen fertilizer is improved; the utilization rate of the nitrogen fertilizer is prolonged. The fertilizer can be applied as base fertilizer at one time; topdressing is not required; the purposes of saving labour and saving fertilizer are achieved.

Description

technical field [0001] The invention relates to a stable fertilizer, in particular to the application of a nitrification inhibitor in nitrogen-containing fertilizers. Background technique [0002] Among the varieties of nitrogen fertilizer applied in the world at present, the quantity of ammonium nitrogen fertilizer and ammonium nitrogen fertilizer producing ammonium fertilizer accounts for more than 90%. After the ammonium nitrogen fertilizer and the ammonium-producing nitrogen fertilizer are applied to the soil, they are easily oxidized to nitrate under the action of ammonia oxidizing microorganisms. Emissions in the air not only pollute the groundwater, but also easily destroy the ozone layer and increase the greenhouse effect. Therefore, nitrification inhibitors are added to ammonium nitrogen fertilizers and ammonium-producing nitrogen fertilizers to delay the oxidation process of ammonium ions in the soil, so as to reduce the leaching loss of nitrate and the emission o...

AI Technical Summary

Problems solved by technology

After the ammonium nitrogen fertilizer and the ammonium-producing nitrogen fertilizer are applied to the soil, they are easily oxidized to nitrate under the action of ammonia oxidizing microorganisms. Emissions in the air not only pollute the groundwater, but also easily destroy the ozone layer and increase the greenhouse effect

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