The main reason is the lack of supervision and correction. As follows: -The degradation of the soil. -Non-sugarcane cultivars suitable for a true area. -Lack of system and the State of the correct and appropriate etiology.
The main reason is the lack of care and amended - soil - varieties that are not suitable for the real - the lack of systems and patterns of genetic accurate and appropriate technical basis.
The main cause is the lack of supervision and correction: - soil degradation - sugar cane varieties that inappropriate with area. - lack of system model and the designated object right theoretically .