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Dicyandiamide in Agricultural Fertilizers: Properties, Applications, and Benefits
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Published Time:
2025-01-02
Dicyandiamide can inhibit the activity of nitrifying bacteria in soil, thereby slowing down the conversion of ammonium nitrogen to nitrate nitrogen. This process is crucial because nitrate nitrogen is easily lost with water or through denitrification, while ammonium nitrogen is relatively stable and more conducive to plant uptake.
Dicyandiamide in Agricultural Fertilizers: Properties, Applications, and Benefits
In agricultural fertilizers, dicyandiamide is primarily used in the production of slow-release nitrogen fertilizers.
Dicyandiamide can inhibit the activity of nitrifying bacteria in the soil, thereby slowing down the conversion of ammonium nitrogen to nitrate nitrogen. This process is crucial because nitrate nitrogen is easily lost through water flow or denitrification, while ammonium nitrogen is relatively stable and more easily absorbed by plants.
In practical applications, dicyandiamide is often used with nitrogen fertilizers such as urea. After the fertilizer containing dicyandiamide is applied to the soil, the dicyandiamide gradually decomposes in the soil, and its inhibitory effect has a certain time range. In this way, sufficient ammonium nitrogen can be supplied in the soil during the critical period of crop growth, reducing nitrogen leaching and volatilization losses, thereby improving nitrogen fertilizer utilization efficiency, generally by 10%-20%.
From an environmental perspective, the use of dicyandiamide helps reduce the risk of water pollution caused by nitrogen fertilizer loss. For example, in areas with a high degree of agricultural intensification and proximity to water bodies, using fertilizers containing dicyandiamide can effectively reduce nitrogen entering water bodies, which has a positive significance for protecting the aquatic ecological environment.
Keywords:
Dicyandiamide,Nitrosomonas
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