Impact of cassava found in soil, water, weather and intense participation in the schedule, on growth and yield of cassava, especially when there is a temperature higher than 37 degrees Celsius for several days, and is the main reason that causes reduced yield of cassava. The physical factor of soil, including soil depth and class factors for the growth of the root is the main feature of the soil that yields fresh weight and gross head of cassava had decreased in almost every production district.
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