Adopt three elements of optimality D saturation design, moisture in the ranking areais set up 3 modes, which are drop irrigation in mountain region; soil moisturepreservation by covering with straw and the mountain soil moisture preserved infish-scale pit. Three nutritional elements are included in handling fertilizing, namely N, Pand K. After two years studying the relationship of the fertilizer efficiency, the growthand yield change of jujube and soil nutrient content under different modes of dropirrigati...