Result showed that in whole generational period Dioscorea zingibereasis have two water consuming fastigiums, one is in bloom vegetal period and another is anthesis and fructiferous phases.

• 结果表明，黄姜在生育期有2个需水高峰，一个在旺盛生长期，即7月下旬至8月上旬，另一个在开花结果期，即8月下旬至9月上旬；