POTENTIAL USE OF CAJANUS CAJAN IN THE CERRADO

A REVIEW

Abstract

Pigeon pea (Cajanus cajan) is a shrub legume with multiple uses. The species has a very well-organized and deep root system, which allows it to resist drought. In addition, pigeon pea can associate with nitrogen-fixing bacteria. These characteristics make pigeon pea a viable alternative in the recovery of degraded soils. As green manure, it guarantees more nutrients for the main crop, thanks to its ability to supply nitrogen to the system. It is a source of food for humans and animals and still adapts well in semi-arid regions. Pigeon pea has shown good results under Cerrado conditions, being an option for diversifying agricultural systems in the region. For the incorporation of this species in agricultural systems, information is needed on the adaptation of the genotypes to the region of cultivation and the destination of the plantation, given the genetic variability and the multiple uses that the species has. However, this information is still scarce and even the existing information needs to reach more farmers and the population in general. In this sense, this review aims to address the main potential use of pigeon pea in the Brazilian cerrado region.