Agronomic, economic and energy performance of cassava genotypes in the southwestern Amazon region

Cassava is an important crop in many parts of the world. It a staple food for millions people, and it also used variety other applications. rich source carbohydrates can be to produce fuel-grade ethanol. The purpose this study was evaluate agronomic, economic, energy performance several cassava genotypes southwest region Brazilian Amazon. Root productivity, flour yield, dry mass, starch content, number roots per plant, rotten plant first branch height, gross net costs income, crop's balance were evaluated. affected all evaluated characteristics. BRS Kiriris genotype excelled terms yields, root absence rot disease. highest revenues observed most productive genotypes. research disclosed average demand 9.78 GJ ha-1. (252,7 ha-1) produced favorable balance, with efficiency 26.9. greatest direct production nitrogen fertilization (37,9%), followed by use herbicides (27,9%), which have high charge associated their manufacture. valuable biofuel feed Amazon's region. selection appropriate crucial achieving adequate levels activity sustainability.