Find in Library

The objective of this study was to increase the shoot and tuberous roots production of cassava to table, in São Mateus, ES. The experimental design was a completely randomized block design in a split-plot with four replications. The plots consisted of five water levels (T1 - non-irrigated treatment; T2 - irrigated treatment with 33% ETc replacement (crop evapotranspiration); T3 - 66% ETc replacement; T4 - 100% ETc replacement; and T5 - with replacement of 133% of ETc). The subplots consisted of three times (90, 180 and 300 DAE - days after emergence) of height and diameter measurement. The highest yields of table cassava are achieved with irrigation depth of 136% and 139% of ETc for root. total and commercial respectively, under the edaphoclimatic conditions studied in the northern state of Espirito Santo. Plants with larger irrigation depths grew faster in height and diameter and produced more. There was a positive correlation when the relationship between the variable fresh air mass (MFPA) and commercial (PC) and total (PT) productivity was verified.