%0 Journal Article %T Frequency analysis of agricultural drought of maize in Sabie River catchment in South Africa %A Masereka %A Eric M. %A Ochieng %A George M. %A Snyman %A Jacques %J Journal of Power and Energy Engineering 电力与能源 %D 2019 %R 10.4102/jamba.v11i1.549 %K empirical frequency analysis %K stochastic frequency analysis %K root zone %K water balance model %K agricultural drought. %U http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S1996-14212019000100056&lng=en&nrm=iso&tlng=en