eamed by exported cassava and cassava products are about fifty-thousands of millons of baht per year.
Furthermore, cassava products is applicable to many industries including food, paper, adhesive and
more, 500,000 families, cassava products aims to support the cassava-growing farmers’ income.
Average cassava yield was very low (2,479 kg rai -1) due to low soil fertility resulted from long term,
continuous cultivation of cassava without simultaneously improving soil fertility or soil and water
conservation perspective.