滴灌肥不同施用量对设施灵武长枣生长、产量和品质的影响

与传统施肥方式相比较,滴灌肥具有提高肥料利用率、施肥肥效快等诸多优势,以5a生灵武长枣为研究对象,分别设置405、540、675、810kg/hm~2滴灌肥施用量处理以及复合肥施用量900kg/hm~2的常规施肥处理,研究不同滴灌肥处理对长枣生长及产量和品质的影响,试验结果表明675kg/hm~2处理下,长枣新梢生长量、枣吊数、果实维生素C、可溶性固形物均显著高于其余各处理,产量比常规施肥提高了17.3%;在滴灌肥施用量为405kg/hm~2处理下,果实中总酸含量最低,果实硬度最高;在施肥量675kg/hm~2处理下,长枣生长状况良好,产量最高,品质较好。

The Effect of Different Dosages of Drip Irrigation Fertilizer on Growth,Yield and Quality of Facility Lingwu Long Jujube

Compared with conventional fertilization methods ,drip irrigation fertilizer with many advantages of enhancing fertilizer use efficiency and fast fertilizer effect .In this experiment ,5 years old Lingwu Long Jujubes are taken as study object ,four treatments with drip irrigation fertilizer amount of 405 ,540 ,675 and 810 kg/hm2 and a traditional fertilization treatment with fertilizer amount of 900 kg/hm2 are set to study the effects of different drip irrigation fertilizer amount on the yield and quality of Long Jujube .The re-sults show that :under the 675 kg/hm2 treatment ,the shoot growth ,bearing branch ,vitamin C and soluble solids of Long Jujube are significantly higher than those of other treatments ,the yield is increased than traditional treatment by 17 .3% ;under the 405 kg/hm2 treatment ,the total acid content in fruit is the lowest and the fruit firmness is the highest ;under the 675 kg/hm2 treatment ,the grow th status is good ,the yield is the highest and the fruit quality is good .