The Effect Of Mulching And Fertilizing Treatment On Growing And Fruit Quality In Zizyphus Jujube Mill.Lingwu Changzao Under Drip Irrigation

Taking8-year-old Zizyphus jujube Mill.Lingwu changzao as research materials, and using drop irrigation, and different fertilizer formulars and mulching to treat the jujube the paper studied the changes of soil temperature and moisture, photosynthesis, fruit weight, the change rules of the organic acid and total sugar in the fruit under different treatments, analyzed the effect of mulching and drip irrigation of integral control of water and fertilization on the growth, photosynthetic, and fruit quality of Zizyphus jujube Mill.Lingwu changzao. The results as follows:1The soil temperatures of0～10cm deep and10～20cm deep under plastic mulching in the jujube plantation were higher than that of control group by0.2～4.1℃and1.1～4.8℃respectively, which indicated that plastic mulching increased soil temperature.2By using plastic mulching and drip irrigation of water-saving irrigation methods, the variation of soil moisture was significantly reduced during the jujube growth period, and the water irrigated were saved by53.78%compared to common irrigation.3Under drip irrigation, the treatments combined different mulching and fertilizing-formulas showed a significant effect on photosynthesis, fruit growth, and fruit quality of the jujube. The treatments of plastic mulching combined fertilizer formula1(Israel compound fertilizer) and plastic mulching combined fertilizer formula2(urea:active calcium:potassium dihydrogen phosphate: potassium sulfate:Boron=3:0.16:0.8:1:0.04) increased the Pn, Evap and WUE of the jujube, and the plastic mulching treatment increased fruit sugar content. Above all, the treatment of plastic mulching combined Israel compound fertilizer was the optimum group which should be recommended to applied in the cultivation practices of Zizyphus jujube Mill.Lingwu changzao.