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对灵武长枣种植基地的五个枣园地进行土壤样品采集,测定土壤有机质、全氮、全磷、全钾等与养分的含量,分析长枣种植基地的土壤养分状况。结果表明:五个枣园样地间土壤有机质含量差异较大,但土壤中氮素严重缺乏,磷素含量较为适宜,钾素充足,其中红柳湾村和果园村的枣园土壤肥力相对较高,银湖公司的枣园土壤肥力较差。建议使用氮、磷的比例为1.69∶1,加大秋施有机肥用量。采用黑色地膜覆盖与滴灌(小管出流)组合的节水栽培方式,使枣树生长期土壤湿度变化幅度减小,增温与节水效果明显,促进枣树生长,提高了果实产量与糖酸比和总糖含量;以地膜覆盖+滴灌(小管出流)+以色列魔力丰复合水溶肥组合效果最好。
Soil samples were collected from five jujube orchards of Lingwu long jujube planting base to determine the content of soil organic matter, total nitrogen, total phosphorus, total potassium and other nutrients, and to analyze the soil nutrient status of the jujube planting base. The results showed that the content of soil organic matter differed greatly among the five jujube orchard plots, but there was a serious shortage of nitrogen in the soil, and the content of phosphorus was suitable and the potassium was sufficient. The soil fertility of jujube orchard in Hongliuwan and Orchard was relatively high , Silver Lake’s jujube orchard soil fertility is poor. Proposed use of nitrogen, phosphorus ratio of 1.69: 1, increase the amount of organic fertilizer applied autumn. The water-saving cultivation method combined with black plastic film mulching and drip irrigation (tubule outflow) reduced the change range of soil moisture in the growth period of jujube tree, and increased the temperature and water saving effect, promoted the growth of jujube tree, increased the fruit yield and sugar acid Than the total sugar content; mulching + drip irrigation (small tube outflow) + Israel magic Feng combination water soluble fertilizer combination best.