The estimation of the optimum water demand in the open field, 5: Capability of the daily irrigation method under the normal growth

This study was carried out to clarify the difference of effective rainfall and net water requirement under the different volume of TRAM fixed in the daily irrigation methods. Also, different daily irrigation methods and the intermittent irrigation method were compared in terms of about effective rainfall and net water requirement. The volume of TRAM is fixed to 100%, 75% and 50%. The results obtained are as follows. 1 Effective rainfall in the "1/1 TRAM plot" of the daily irrigation method was the largest of all. 2 Net water requirement in the "1/1 TRAM plot" of the daily irrigation method was the least of all. 3 Effective rainfall in the "3/4 TRAM plot" of the daily irrigation method was larger than that in the intermittent irrigation method. 4 Net water requirement in the "3/4 TRAM plot" of the daily irrigation method was less than that in the intermittent irrigation method