Record ID No. |
1427 |
Author(s) |
Mendes I.de C., Reis Junior F. B. dos , 2003 |
Affiliation |
Microbiologia dos Solos, Embrapa Cerrados, BR 020, Km 18, Rod. Brasilia/Fortaleza, Caixa Postal 08223, CEP 73310-970 Planaltina, DF, Brazil. |
Title |
Microorganisms and P availability in soil: a critical analysis |
Source. Vol.(no):Page |
Documentos-Embrapa-Cerrados. (85): 26 p. |
Categories |
Mycorrhiza General |
Subjects |
Reviews |
Host |
Plants |
Organism |
Microbes |
Country |
Brazil, S. America |
Abstracts |
Cerrado soils are extremely old, highly weathered and depleted in essential nutrients, especially phosphorus (P). For this reason, the addition of P fertilizers is mandatory in order to obtain economical yields of annual crops. Soil microorganisms play a key role in the P cycle. The P immobilized in the soil microbial biomass acts as reservoir of this element. Soil microorganisms also produce enzymes that act in the P mineralization, participate in the solubilization of inorganic phosphorus and are able to form symbiosis with plants denominated by mycorrhiza, enhancing the uptake of this element. In this review, we discuss the results of several studies evaluating the use of soil microorganisms to increase P availability in soils, some of the difficulties related to field inoculation, and the perspectives for future research.. |