What is the importance of the rhizosphere to plant nutrition and importance of mycorrhizae in crop production?
The rhizosphere is vital for plant nutrition as it hosts interactions between roots, soil, and microorganisms, facilitating nutrient uptake, disease suppression, and soil structure improvement. Mycorrhizae, symbiotic fungi, enhance crop production by improving nutrient and water uptake, increasing resistance to diseases, and promoting overall plant health and productivity.
The rhizosphere plays an essential role in the nutrition of plants by interacting with microbes to promote nutrient intake, cycling, and defence. Whereas, by enhancing plant nutrient uptake, soil structure, disease resistance, and stress tolerance, mycorrhizae increase crop yields.
Plant roots' discharge of organic chemicals into the soil is one of the rhizosphere's main features. The rhizosphere and bulk soil have distinct environments due to these substances known as root exudates. In addition to increasing nutrient availability in the rhizosphere, the exudates give heterotrophic microbes a source of carbon. The amount of microorganisms in the rhizosphere is significantly higher than in the bulk soil due to the exudates. Compared to bulk soil, the rhizosphere can have 500 times the number of organisms. By changing the flow of carbon molecules from roots to shoots, rhizosphere organisms can modify the roots of plants. Numerous helpful microorganisms are referred to as Plant Growth Promiting Rhizobacteria (PGPR).AM fungus protect the plant, which promotes vegetative growth and productivity. The plant and AM fungi thrive in a symbiotic relationship. The plant obtains from the nutrient-rich environment the plant provides in the rhizosphere, and the plant benefits from the AM fungi by preventing other pathogens from coming into direct contact with it and strengthening its resistance against pathogen attack.@rk naresh
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Materials Science
- Materials Chemistry
- Polymer Chemistry