Biofertilizers have a variety of effects on the plant’s nutritional content, but they largely increase nutrient availability and uptake. Biofertilizers are made up of helpful microorganisms that interact with plants and the soil environment to promote nutrient uptake and plant nutritional content. These microorganisms include bacteria, fungi, and algae. How biofertilizers affect the amount of nutrients in the plant are as follows:
Nitrogen fixation: Symbiotic connections between nitrogen-fixing bacteria like Rhizobium and Azotobacter and leguminous plants (such peas, beans, and soybeans) are known as nitrogen fixation. By converting ambient nitrogen (N2) into ammonia (NH3) and ammonium ions (NH4+), which plants may easily absorb, these bacteria infiltrate the plant’s root nodules. Nitrogen, which is necessary for plants’ growth and development, is made available to them through this mechanism. Consequently, the amount of nitrogen in the plant increases.
In order to solubilize bound phosphorus (P) in the soil, phosphate-solubilizing bacteria, such as Pseudomonas and Bacillus species, create organic acids and enzymes. This increases the availability of phosphorus to plants, fostering higher root growth, flowering, and fruiting. Higher phosphorus content in the plant tissues results from increased phosphorus availability.
Mobilization of potassium: Some biofertilizers assist in the soil’s mobilization of potassium (K). For instance, several bacteria can release potassium from organic or mineral sources, increasing its availability to plants. For several physiological functions in plants, such as water management and enzyme activation, adequate potassium levels are essential.
