In designing a disc Harrow is designed to unearth from the physical storage of the spread and depth distribution of cassava. The analysis is made to issue the disc Harrow, dug, covered an area of 95 percent of the cassava head tie. Observation and measurement of head of cassava varieties in Rayong. 5. measure of spread from the middle of rhizomes in the test information tables 1 and perform an analysis of dig design disc Harrow.
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