Because of their distinct methods for nutrient release and increased nutrient uptake efficiency, biofertilizers significantly contribute to lowering nutrient runoff and water pollution. When too many nutrients, such nitrogen and phosphorus, are removed from agricultural fields by rainfall or irrigation water and end up in bodies of water like rivers, lakes, and seas, this is known as nutrient runoff. In addition to contributing to problems like eutrophication, destructive algal blooms, and deteriorated water quality, this nitrogen discharge can cause water pollution. Here is how biofertilizers lessen water pollution and nutrient runoff:
Contrary to chemical fertilizers, which frequently release nutrients quickly, biofertilizers release nutrients more gradually and slowly. The risk of nutrient runoff and leaching is decreased by the slow-release nature of biofertilizers. As plants grow, nutrients are released.
Increased Nutrient Uptake Efficiency: Biofertilizers, notably mycorrhizal fungi and bacteria that promote plant growth, increase the efficiency with which nutrients are taken up by plants. It is less likely that extra nutrients will be left in the soil to drain or discharge with water when plants absorb nutrients more effectively.
Reduced usage of Chemical Fertilizers: The usage of biofertilizers may result in a decreased use of chemical fertilizers in general. The overall amount of nutrients supplied to the soil is decreased, lowering the possibility of nutrient runoff, by supplementing or partially substituting chemical fertilizers with biofertilizers.
Improved Soil Structure: Some biofertilizers, including mycorrhizal fungi, help to aggregate the soil and enhance its structure. A more effective soil structure encourages water infiltration and decreases surface runoff, which limits the movement of nutrients off the soil.
