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１９９２～１９９５年经过对枣步曲排粪规律、食叶量、枣树蓄叶量以及不同失叶水平对枣果产量影响的系统研究，建立了排粪量与平均气温的数量模型：Ｆ∧＝０．５６２９＋０．０１６２Ｔ，枣树蓄叶量估测模型：株蓄叶总面积＝株总枣股数×每股平均枣吊数×每吊平均枣叶数×平均枣叶面积，单位树冠面积下单位时间落粪粒数动态防治指标模型：Ｙ＝（２２６．１９４Ｘ３－３７３．７５４６）Ｘ－２３（０．５６５９＋０．０１６２Ｔ），经林间验证，准确度在９０％以上。
From 1992 to 1995, we conducted a systematic study on the effects of the law of stool excretion, the quantity of leaf-opening, the storage of jujube and the effect of different leaf-demarcation levels on the jujube fruit yield. The quantitative models of fecal excrement and average temperature were established: F∧ = 0.5629 +0.0162T, jujube leaf volume estimation model: the total leaf area of the plant = total jujube shares × average number of jujube per hanging × average number of jujube leaves per hanging × average jujube leaf area, canopy area per unit area Under the unit time, the number of fecal pellets dynamic control index model: Y = (226.194X3-373.7546) X-23 (0.5659 + 0.0162T), verified by the forest, the accuracy of more than 90%.