Proposing the research result of correlative relationship between the effective rainfall and the actual rainfall to determine the effective rainfall in calculating rice irrigation regime in Quang Nam province

Abstract

    Based on the result of analyzing correlation between the effective rainfall and the actual rainfall, the authors proposed the correlation equation of the effective rainfall and the actual rainfall on the basis of monthly rain and seasonal rain of irrigated area in the plains of the northern Quang Nam and the southern Quang Nam in order to determine the effective rainfall in calculating rice irrigation regime of irrigation system at those two regions.